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Appendix C. Well-Known TCP/IP Port Numbers

This appendix lists the well-known TCP/IP port numbers. This listing is maintained by IANA, and you can find the most recent version at

(last updated 2003-10-20) 

The port numbers are divided into three ranges: the Well Known Ports,

the Registered Ports, and the Dynamic and/or Private Ports.

The Well Known Ports are those from 0 through 1023.

The Registered Ports are those from 1024 through 49151

The Dynamic and/or Private Ports are those from 49152 through 65535




The Well Known Ports are assigned by the IANA and on most systems can

only be used by system (or root) processes or by programs executed by

privileged users.

Ports are used in the TCP [RFC793] to name the ends of logical

connections which carry long term conversations.  For the purpose of

providing services to unknown callers, a service contact port is

defined.  This list specifies the port used by the server process as

its contact port.  The contact port is sometimes called the 

"well-known port".

To the extent possible, these same port assignments are used with the

UDP [RFC768].

The range for assigned ports managed by the IANA is 0-1023.

Port Assignments:

Keyword         Decimal    Description                 References

-------         -------    -----------                 ----------

                  0/tcp    Reserved

                  0/udp    Reserved

#                          Jon Postel <>

tcpmux            1/tcp    TCP Port Service Multiplexer

tcpmux            1/udp    TCP Port Service Multiplexer

#                          Mark Lottor <>

compressnet       2/tcp    Management Utility

compressnet       2/udp    Management Utility

compressnet       3/tcp    Compression Process

compressnet       3/udp    Compression Process

#                          Bernie Volz <VOLZ@PROCESS.COM>

#                 4/tcp    Unassigned

#                 4/udp    Unassigned

rje               5/tcp    Remote Job Entry

rje               5/udp    Remote Job Entry

#                          Jon Postel <>

#                 6/tcp    Unassigned

#                 6/udp    Unassigned

echo              7/tcp    Echo

echo              7/udp    Echo

#                          Jon Postel <>

#                 8/tcp    Unassigned

#                 8/udp    Unassigned

discard           9/tcp    Discard

discard           9/udp    Discard

#                          Jon Postel <>

#                10/tcp    Unassigned

#                10/udp    Unassigned

systat           11/tcp    Active Users

systat           11/udp    Active Users

#                          Jon Postel <>

#                12/tcp    Unassigned

#                12/udp    Unassigned

daytime          13/tcp    Daytime (RFC 867)

daytime          13/udp    Daytime (RFC 867)

#                          Jon Postel <>

#                14/tcp    Unassigned

#                14/udp    Unassigned

#                15/tcp    Unassigned [was netstat]

#                15/udp    Unassigned

#                16/tcp    Unassigned

#                16/udp    Unassigned

qotd             17/tcp    Quote of the Day

qotd             17/udp    Quote of the Day

#                          Jon Postel <>

msp              18/tcp    Message Send Protocol

msp              18/udp    Message Send Protocol

#                          Rina Nethaniel <---none--->

chargen          19/tcp    Character Generator

chargen          19/udp    Character Generator

ftp-data         20/tcp    File Transfer [Default Data]

ftp-data         20/udp    File Transfer [Default Data]

ftp              21/tcp    File Transfer [Control]

ftp              21/udp    File Transfer [Control]

#                          Jon Postel <>

ssh              22/tcp    SSH Remote Login Protocol

ssh              22/udp    SSH Remote Login Protocol

#                          Tatu Ylonen <>

telnet           23/tcp    Telnet

telnet           23/udp    Telnet

#                          Jon Postel <>

                 24/tcp    any private mail system

                 24/udp    any private mail system

#                          Rick Adams <rick@UUNET.UU.NET>

smtp             25/tcp    Simple Mail Transfer

smtp             25/udp    Simple Mail Transfer

#                          Jon Postel <>

#                26/tcp    Unassigned

#                26/udp    Unassigned

nsw-fe           27/tcp    NSW User System FE

nsw-fe           27/udp    NSW User System FE

#                          Robert Thomas <BThomas@F.BBN.COM>

#                28/tcp    Unassigned

#                28/udp    Unassigned

msg-icp          29/tcp    MSG ICP

msg-icp          29/udp    MSG ICP

#                          Robert Thomas <BThomas@F.BBN.COM>

#                30/tcp    Unassigned

#                30/udp    Unassigned

msg-auth         31/tcp    MSG Authentication

msg-auth         31/udp    MSG Authentication

#                          Robert Thomas <BThomas@F.BBN.COM>

#                32/tcp    Unassigned

#                32/udp    Unassigned

dsp              33/tcp    Display Support Protocol

dsp              33/udp    Display Support Protocol

#                          Ed Cain <>

#                34/tcp    Unassigned

#                34/udp    Unassigned

                 35/tcp    any private printer server

                 35/udp    any private printer server

#                          Jon Postel <>

#                36/tcp    Unassigned

#                36/udp    Unassigned

time             37/tcp    Time

time             37/udp    Time

#                          Jon Postel <>

rap              38/tcp    Route Access Protocol

rap              38/udp    Route Access Protocol

#                          Robert Ullmann <>

rlp              39/tcp    Resource Location Protocol

rlp              39/udp    Resource Location Protocol

#                          Mike Accetta <MIKE.ACCETTA@CMU-CS-A.EDU>

#                40/tcp    Unassigned

#                40/udp    Unassigned

graphics         41/tcp    Graphics

graphics         41/udp    Graphics

name             42/tcp    Host Name Server

name             42/udp    Host Name Server

nameserver       42/tcp    Host Name Server

nameserver       42/udp    Host Name Server

nicname          43/tcp    Who Is

nicname          43/udp    Who Is

mpm-flags        44/tcp    MPM FLAGS Protocol

mpm-flags        44/udp    MPM FLAGS Protocol

mpm              45/tcp    Message Processing Module [recv]

mpm              45/udp    Message Processing Module [recv]

mpm-snd          46/tcp    MPM [default send]

mpm-snd          46/udp    MPM [default send]

#                          Jon Postel <>

ni-ftp           47/tcp    NI FTP

ni-ftp           47/udp    NI FTP

#                          Steve Kille <>

auditd           48/tcp    Digital Audit Daemon

auditd           48/udp    Digital Audit Daemon

#                          Larry Scott <>

tacacs           49/tcp    Login Host Protocol (TACACS)

tacacs           49/udp    Login Host Protocol (TACACS)

#                          Pieter Ditmars <pditmars@BBN.COM>

re-mail-ck       50/tcp    Remote Mail Checking Protocol

re-mail-ck       50/udp    Remote Mail Checking Protocol

#                          Steve Dorner <s-dorner@UIUC.EDU>

la-maint         51/tcp    IMP Logical Address Maintenance

la-maint         51/udp    IMP Logical Address Maintenance

#                          Andy Malis <>

xns-time         52/tcp    XNS Time Protocol

xns-time         52/udp    XNS Time Protocol

#                          Susie Armstrong <Armstrong.wbst128@XEROX>

domain           53/tcp    Domain Name Server

domain           53/udp    Domain Name Server

#                          Paul Mockapetris <PVM@ISI.EDU>

xns-ch           54/tcp    XNS Clearinghouse

xns-ch           54/udp    XNS Clearinghouse

#                          Susie Armstrong <Armstrong.wbst128@XEROX>

isi-gl           55/tcp    ISI Graphics Language

isi-gl           55/udp    ISI Graphics Language

xns-auth         56/tcp    XNS Authentication

xns-auth         56/udp    XNS Authentication

#                          Susie Armstrong <Armstrong.wbst128@XEROX>

                 57/tcp    any private terminal access

                 57/udp    any private terminal access

#                          Jon Postel <>

xns-mail         58/tcp    XNS Mail

xns-mail         58/udp    XNS Mail

#                          Susie Armstrong <Armstrong.wbst128@XEROX>

                 59/tcp    any private file service

                 59/udp    any private file service

#                          Jon Postel <>

                 60/tcp    Unassigned

                 60/udp    Unassigned

ni-mail          61/tcp    NI MAIL

ni-mail          61/udp    NI MAIL

#                          Steve Kille <>

acas             62/tcp    ACA Services

acas             62/udp    ACA Services

#                          E. Wald <>

whois++          63/tcp    whois++

whois++          63/udp    whois++

#                          Rickard Schoultz <>

covia            64/tcp    Communications Integrator (CI)

covia            64/udp    Communications Integrator (CI)

#                          Dan Smith <>

tacacs-ds        65/tcp    TACACS-Database Service

tacacs-ds        65/udp    TACACS-Database Service

#                          Kathy Huber <>

sql*net          66/tcp    Oracle SQL*NET

sql*net          66/udp    Oracle SQL*NET

#                          Jack Haverty <jhaverty@ORACLE.COM>

bootps           67/tcp    Bootstrap Protocol Server

bootps           67/udp    Bootstrap Protocol Server

bootpc           68/tcp    Bootstrap Protocol Client

bootpc           68/udp    Bootstrap Protocol Client

#                          Bill Croft <Croft@SUMEX-AIM.STANFORD.EDU>

tftp             69/tcp    Trivial File Transfer

tftp             69/udp    Trivial File Transfer

#                          David Clark <ddc@LCS.MIT.EDU>

gopher           70/tcp    Gopher

gopher           70/udp    Gopher

#                          Mark McCahill <>

netrjs-1         71/tcp    Remote Job Service

netrjs-1         71/udp    Remote Job Service

netrjs-2         72/tcp    Remote Job Service

netrjs-2         72/udp    Remote Job Service

netrjs-3         73/tcp    Remote Job Service

netrjs-3         73/udp    Remote Job Service

netrjs-4         74/tcp    Remote Job Service

netrjs-4         74/udp    Remote Job Service

#                          Bob Braden <Braden@ISI.EDU>

                 75/tcp    any private dial out service

                 75/udp    any private dial out service

#                          Jon Postel <>

deos             76/tcp    Distributed External Object Store

deos             76/udp    Distributed External Object Store

#                          Robert Ullmann <>

                 77/tcp    any private RJE service

                 77/udp    any private RJE service

#                          Jon Postel <>

vettcp           78/tcp    vettcp

vettcp           78/udp    vettcp

#                          Christopher Leong <>

finger           79/tcp    Finger

finger           79/udp    Finger

#                          David Zimmerman <dpz@RUTGERS.EDU>

http             80/tcp    World Wide Web HTTP

http             80/udp    World Wide Web HTTP

www              80/tcp    World Wide Web HTTP

www              80/udp    World Wide Web HTTP

www-http         80/tcp    World Wide Web HTTP

www-http         80/udp    World Wide Web HTTP

#                          Tim Berners-Lee <>

hosts2-ns        81/tcp    HOSTS2 Name Server

hosts2-ns        81/udp    HOSTS2 Name Server

#                          Earl Killian <EAK@MORDOR.S1.GOV>

xfer             82/tcp    XFER Utility

xfer             82/udp    XFER Utility

#                          Thomas M. Smith <>

mit-ml-dev       83/tcp    MIT ML Device

mit-ml-dev       83/udp    MIT ML Device

#                          David Reed <--none--->

ctf              84/tcp    Common Trace Facility

ctf              84/udp    Common Trace Facility

#                          Hugh Thomas <>

mit-ml-dev       85/tcp    MIT ML Device

mit-ml-dev       85/udp    MIT ML Device

#                          David Reed <--none--->

mfcobol          86/tcp    Micro Focus Cobol

mfcobol          86/udp    Micro Focus Cobol

#                          Simon Edwards <--none--->

                 87/tcp    any private terminal link

                 87/udp    any private terminal link

#                          Jon Postel <>

kerberos         88/tcp    Kerberos

kerberos         88/udp    Kerberos

#                          B. Clifford Neuman <>

su-mit-tg        89/tcp    SU/MIT Telnet Gateway

su-mit-tg        89/udp    SU/MIT Telnet Gateway

#                          Mark Crispin <MRC@PANDA.COM>

########### PORT 90 also being used unofficially by Pointcast #########

dnsix            90/tcp    DNSIX Securit Attribute Token Map

dnsix            90/udp    DNSIX Securit Attribute Token Map

#                          Charles Watt <>

mit-dov          91/tcp    MIT Dover Spooler

mit-dov          91/udp    MIT Dover Spooler

#                          Eliot Moss <EBM@XX.LCS.MIT.EDU>

npp              92/tcp    Network Printing Protocol

npp              92/udp    Network Printing Protocol

#                          Louis Mamakos <>

dcp              93/tcp    Device Control Protocol

dcp              93/udp    Device Control Protocol

#                          Daniel Tappan <Tappan@BBN.COM>

objcall          94/tcp    Tivoli Object Dispatcher

objcall          94/udp    Tivoli Object Dispatcher

#                          Tom Bereiter <--none--->

supdup           95/tcp    SUPDUP

supdup           95/udp    SUPDUP

#                          Mark Crispin <MRC@PANDA.COM>

dixie            96/tcp    DIXIE Protocol Specification

dixie            96/udp    DIXIE Protocol Specification

#                Tim Howes <>

swift-rvf        97/tcp    Swift Remote Virtural File Protocol

swift-rvf        97/udp    Swift Remote Virtural File Protocol

#                          Maurice R. Turcotte

#               <mailrus!uflorida!rm1!dnmrt%rmatl@uunet.UU.NET> 

tacnews          98/tcp    TAC News

tacnews          98/udp    TAC News

#                          Jon Postel <>

metagram         99/tcp    Metagram Relay

metagram         99/udp    Metagram Relay

#                          Geoff Goodfellow <Geoff@FERNWOOD.MPK.CA.US>

newacct         100/tcp    [unauthorized use]

hostname        101/tcp    NIC Host Name Server

hostname        101/udp    NIC Host Name Server

#                          Jon Postel <>

iso-tsap        102/tcp    ISO-TSAP Class 0

iso-tsap        102/udp    ISO-TSAP Class 0

#                          Marshall Rose <>

gppitnp         103/tcp    Genesis Point-to-Point Trans Net

gppitnp         103/udp    Genesis Point-to-Point Trans Net

acr-nema        104/tcp    ACR-NEMA Digital Imag. & Comm. 300

acr-nema        104/udp    ACR-NEMA Digital Imag. & Comm. 300

#                          Patrick McNamee <--none--->

cso             105/tcp    CCSO name server protocol

cso             105/udp    CCSO name server protocol

#                          Martin Hamilton <> 

csnet-ns        105/tcp    Mailbox Name Nameserver

csnet-ns        105/udp    Mailbox Name Nameserver

#                          Marvin Solomon <solomon@CS.WISC.EDU>

3com-tsmux      106/tcp    3COM-TSMUX

3com-tsmux      106/udp    3COM-TSMUX

#                          Jeremy Siegel <jzs@NSD.3Com.COM>

##########      106        Unauthorized use by insecure poppassd protocol

rtelnet         107/tcp    Remote Telnet Service

rtelnet         107/udp    Remote Telnet Service

#                          Jon Postel <>

snagas          108/tcp    SNA Gateway Access Server

snagas          108/udp    SNA Gateway Access Server

#                          Kevin Murphy <>

pop2            109/tcp    Post Office Protocol - Version 2

pop2            109/udp    Post Office Protocol - Version 2

#                          Joyce K. Reynolds <>

pop3            110/tcp    Post Office Protocol - Version 3

pop3            110/udp    Post Office Protocol - Version 3

#                          Marshall Rose <>

sunrpc          111/tcp    SUN Remote Procedure Call

sunrpc          111/udp    SUN Remote Procedure Call

#                          Chuck McManis <>

mcidas          112/tcp    McIDAS Data Transmission Protocol

mcidas          112/udp    McIDAS Data Transmission Protocol

#                          Glenn Davis <>

ident           113/tcp    

auth            113/tcp    Authentication Service

auth            113/udp    Authentication Service

#                          Mike St. Johns <>

audionews       114/tcp    Audio News Multicast

audionews       114/udp    Audio News Multicast

#                          Martin Forssen <>

sftp            115/tcp    Simple File Transfer Protocol

sftp            115/udp    Simple File Transfer Protocol

#                          Mark Lottor <>

ansanotify      116/tcp    ANSA REX Notify

ansanotify      116/udp    ANSA REX Notify

#                          Nicola J. Howarth <>

uucp-path       117/tcp    UUCP Path Service

uucp-path       117/udp    UUCP Path Service

sqlserv         118/tcp    SQL Services

sqlserv         118/udp    SQL Services

#                          Larry Barnes <>

nntp            119/tcp    Network News Transfer Protocol

nntp            119/udp    Network News Transfer Protocol

#                          Phil Lapsley <phil@UCBARPA.BERKELEY.EDU>

cfdptkt         120/tcp    CFDPTKT

cfdptkt         120/udp    CFDPTKT

#                          John Ioannidis <ji@close.cs.columbia.ed>

erpc            121/tcp    Encore Expedited Remote Pro.Call

erpc            121/udp    Encore Expedited Remote Pro.Call

#                          Jack O'Neil <---none--->

smakynet        122/tcp    SMAKYNET

smakynet        122/udp    SMAKYNET

#                          Pierre Arnaud <>

ntp             123/tcp    Network Time Protocol

ntp             123/udp    Network Time Protocol

#                          Dave Mills <Mills@HUEY.UDEL.EDU>

ansatrader      124/tcp    ANSA REX Trader

ansatrader      124/udp    ANSA REX Trader

#                          Nicola J. Howarth <>

locus-map       125/tcp    Locus PC-Interface Net Map Ser

locus-map       125/udp    Locus PC-Interface Net Map Ser

#                          Eric Peterson <lcc.eric@SEAS.UCLA.EDU>

nxedit          126/tcp    NXEdit

nxedit          126/udp    NXEdit

#                          Don Payette <>

###########Port 126 Previously assigned to application below#######

#unitary        126/tcp    Unisys Unitary Login

#unitary        126/udp    Unisys Unitary Login

#                          <>

###########Port 126 Previously assigned to application above#######

locus-con       127/tcp    Locus PC-Interface Conn Server

locus-con       127/udp    Locus PC-Interface Conn Server

#                          Eric Peterson <lcc.eric@SEAS.UCLA.EDU>

gss-xlicen      128/tcp    GSS X License Verification

gss-xlicen      128/udp    GSS X License Verification

#                          John Light <>

pwdgen          129/tcp    Password Generator Protocol

pwdgen          129/udp    Password Generator Protocol

#                          Frank J. Wacho <WANCHO@WSMR-SIMTEL20.ARMY.MIL>

cisco-fna       130/tcp    cisco FNATIVE

cisco-fna       130/udp    cisco FNATIVE

cisco-tna       131/tcp    cisco TNATIVE

cisco-tna       131/udp    cisco TNATIVE

cisco-sys       132/tcp    cisco SYSMAINT

cisco-sys       132/udp    cisco SYSMAINT

statsrv         133/tcp    Statistics Service

statsrv         133/udp    Statistics Service

#                          Dave Mills <Mills@HUEY.UDEL.EDU>

ingres-net      134/tcp    INGRES-NET Service

ingres-net      134/udp    INGRES-NET Service

#                          Mike Berrow <---none--->

epmap           135/tcp    DCE endpoint resolution

epmap           135/udp    DCE endpoint resolution

#                          Joe Pato <>

profile         136/tcp    PROFILE Naming System           

profile         136/udp    PROFILE Naming System           

#                          Larry Peterson <llp@ARIZONA.EDU>

netbios-ns      137/tcp    NETBIOS Name Service    

netbios-ns      137/udp    NETBIOS Name Service    

netbios-dgm     138/tcp    NETBIOS Datagram Service

netbios-dgm     138/udp    NETBIOS Datagram Service

netbios-ssn     139/tcp    NETBIOS Session Service

netbios-ssn     139/udp    NETBIOS Session Service

#                          Jon Postel <>

emfis-data      140/tcp    EMFIS Data Service

emfis-data      140/udp    EMFIS Data Service

emfis-cntl      141/tcp    EMFIS Control Service

emfis-cntl      141/udp    EMFIS Control Service

#                          Gerd Beling <GBELING@ISI.EDU>

bl-idm          142/tcp    Britton-Lee IDM           

bl-idm          142/udp    Britton-Lee IDM           

#                          Susie Snitzer <---none--->

imap            143/tcp    Internet Message Access Protocol

imap            143/udp    Internet Message Access Protocol

#                          Mark Crispin <MRC@CAC.Washington.EDU>

uma             144/tcp    Universal Management Architecture

uma             144/udp    Universal Management Architecture

#                          Jay Whitney <>

uaac            145/tcp    UAAC Protocol             

uaac            145/udp    UAAC Protocol             

#                          David A. Gomberg <gomberg@GATEWAY.MITRE.ORG>

iso-tp0         146/tcp    ISO-IP0

iso-tp0         146/udp    ISO-IP0

iso-ip          147/tcp    ISO-IP

iso-ip          147/udp    ISO-IP

#                          Marshall Rose <>

jargon          148/tcp    Jargon

jargon          148/udp    Jargon

#                          Bill Weinman <>

aed-512         149/tcp    AED 512 Emulation Service           

aed-512         149/udp    AED 512 Emulation Service           

#                          Albert G. Broscius <broscius@DSL.CIS.UPENN.EDU>

sql-net         150/tcp    SQL-NET                    

sql-net         150/udp    SQL-NET                    

#                          Martin Picard <<---none--->

hems            151/tcp    HEMS                              

hems            151/udp    HEMS                              

bftp            152/tcp    Background File Transfer Program 

bftp            152/udp    Background File Transfer Program 

#                          Annette DeSchon <DESCHON@ISI.EDU>

sgmp            153/tcp    SGMP                    

sgmp            153/udp    SGMP                    

#                          Marty Schoffstahl <schoff@NISC.NYSER.NET>

netsc-prod      154/tcp    NETSC                             

netsc-prod      154/udp    NETSC                             

netsc-dev       155/tcp    NETSC                             

netsc-dev       155/udp    NETSC                             

#                          Sergio Heker <heker@JVNCC.CSC.ORG>

sqlsrv          156/tcp    SQL Service                  

sqlsrv          156/udp    SQL Service                  

#                          Craig Rogers <Rogers@ISI.EDU>

knet-cmp        157/tcp    KNET/VM Command/Message Protocol

knet-cmp        157/udp    KNET/VM Command/Message Protocol

#                          Gary S. Malkin <GMALKIN@XYLOGICS.COM>

pcmail-srv      158/tcp    PCMail Server                 

pcmail-srv      158/udp    PCMail Server                 

#                          Mark L. Lambert <markl@PTT.LCS.MIT.EDU>

nss-routing     159/tcp    NSS-Routing                  

nss-routing     159/udp    NSS-Routing                  

#                          Yakov Rekhter <Yakov@IBM.COM>

sgmp-traps      160/tcp    SGMP-TRAPS                

sgmp-traps      160/udp    SGMP-TRAPS                

#                          Marty Schoffstahl <schoff@NISC.NYSER.NET>

snmp            161/tcp    SNMP

snmp            161/udp    SNMP

snmptrap        162/tcp    SNMPTRAP

snmptrap        162/udp    SNMPTRAP

#                          Marshall Rose <>

cmip-man        163/tcp    CMIP/TCP Manager   

cmip-man        163/udp    CMIP/TCP Manager   

cmip-agent      164/tcp    CMIP/TCP Agent     

cmip-agent      164/udp    CMIP/TCP Agent     

#                          Amatzia Ben-Artzi <---none--->

xns-courier     165/tcp    Xerox                          

xns-courier     165/udp    Xerox                          

#                          Susie Armstrong <Armstrong.wbst128@XEROX.COM>

s-net           166/tcp    Sirius Systems          

s-net           166/udp    Sirius Systems          

#                          Brian Lloyd <>

namp            167/tcp    NAMP                    

namp            167/udp    NAMP                    

#                          Marty Schoffstahl <schoff@NISC.NYSER.NET>

rsvd            168/tcp    RSVD                              

rsvd            168/udp    RSVD                              

#                          Neil Todd <mcvax!!neil@UUNET.UU.NET>

send            169/tcp    SEND                              

send            169/udp    SEND                              

#                          William D. Wisner <wisner@HAYES.FAI.ALASKA.EDU>

print-srv       170/tcp    Network PostScript              

print-srv       170/udp    Network PostScript              

#                          Brian Reid <reid@DECWRL.DEC.COM>

multiplex       171/tcp    Network Innovations Multiplex

multiplex       171/udp    Network Innovations Multiplex

cl/1            172/tcp    Network Innovations CL/1     

cl/1            172/udp    Network Innovations CL/1     

#                          Kevin DeVault <<---none--->

xyplex-mux      173/tcp    Xyplex                          

xyplex-mux      173/udp    Xyplex                          

#                          Bob Stewart <STEWART@XYPLEX.COM>

mailq           174/tcp    MAILQ                               

mailq           174/udp    MAILQ                               

#                          Rayan Zachariassen <rayan@AI.TORONTO.EDU>

vmnet           175/tcp    VMNET                                

vmnet           175/udp    VMNET  

#                          Christopher Tengi <tengi@Princeton.EDU>

genrad-mux      176/tcp    GENRAD-MUX                      

genrad-mux      176/udp    GENRAD-MUX                      

#                          Ron Thornton <>

xdmcp           177/tcp    X Display Manager Control Protocol  

xdmcp           177/udp    X Display Manager Control Protocol  

#                          Robert W. Scheifler <RWS@XX.LCS.MIT.EDU>

nextstep        178/tcp    NextStep Window Server     

nextstep        178/udp    NextStep Window Server     

#                          Leo Hourvitz <leo@NEXT.COM>

bgp             179/tcp    Border Gateway Protocol             

bgp             179/udp    Border Gateway Protocol             

#                          Kirk Lougheed <LOUGHEED@MATHOM.CISCO.COM>

ris             180/tcp    Intergraph                         

ris             180/udp    Intergraph                         

#                          Dave Buehmann <ingr!daveb@UUNET.UU.NET>

unify           181/tcp    Unify                  

unify           181/udp    Unify                  

#                          Mark Ainsley <>

audit           182/tcp    Unisys Audit SITP                  

audit           182/udp    Unisys Audit SITP                  

#                          Gil Greenbaum <>

ocbinder        183/tcp    OCBinder                     

ocbinder        183/udp    OCBinder                     

ocserver        184/tcp    OCServer                     

ocserver        184/udp    OCServer                     

#                          Jerrilynn Okamura <--none--->

remote-kis      185/tcp    Remote-KIS                        

remote-kis      185/udp    Remote-KIS                        

kis             186/tcp    KIS Protocol                      

kis             186/udp    KIS Protocol                      

#                          Ralph Droms <rdroms@NRI.RESTON.VA.US>

aci             187/tcp    Application Communication Interface

aci             187/udp    Application Communication Interface

#                          Rick Carlos <>

mumps           188/tcp    Plus Five's MUMPS            

mumps           188/udp    Plus Five's MUMPS            

#                          Hokey Stenn <hokey@PLUS5.COM>

qft             189/tcp    Queued File Transport        

qft             189/udp    Queued File Transport        

#                          Wayne Schroeder <schroeder@SDS.SDSC.EDU>

gacp            190/tcp    Gateway Access Control Protocol

gacp            190/udp    Gateway Access Control Protocol

#                          C. Philip Wood <cpw@LANL.GOV>

prospero        191/tcp    Prospero Directory Service      

prospero        191/udp    Prospero Directory Service      

#                          B. Clifford Neuman <>

osu-nms         192/tcp    OSU Network Monitoring System       

osu-nms         192/udp    OSU Network Monitoring System       

#                          Doug Karl <KARL-D@OSU-20.IRCC.OHIO-STATE.EDU>

srmp            193/tcp    Spider Remote Monitoring Protocol 

srmp            193/udp    Spider Remote Monitoring Protocol 

#                          Ted J. Socolofsky <Teds@SPIDER.CO.UK>

irc             194/tcp    Internet Relay Chat Protocol        

irc             194/udp    Internet Relay Chat Protocol        

#                          Jarkko Oikarinen <jto@TOLSUN.OULU.FI>

dn6-nlm-aud     195/tcp    DNSIX Network Level Module Audit    

dn6-nlm-aud     195/udp    DNSIX Network Level Module Audit    

dn6-smm-red     196/tcp    DNSIX Session Mgt Module Audit Redir

dn6-smm-red     196/udp    DNSIX Session Mgt Module Audit Redir

#                          Lawrence Lebahn <DIA3@PAXRV-NES.NAVY.MIL>

dls             197/tcp    Directory Location Service        

dls             197/udp    Directory Location Service        

dls-mon         198/tcp    Directory Location Service Monitor

dls-mon         198/udp    Directory Location Service Monitor

#                          Scott Bellew <>

smux            199/tcp    SMUX

smux            199/udp    SMUX

#                          Marshall Rose <>

src             200/tcp    IBM System Resource Controller

src             200/udp    IBM System Resource Controller

#                          Gerald McBrearty <---none--->

at-rtmp         201/tcp    AppleTalk Routing Maintenance       

at-rtmp         201/udp    AppleTalk Routing Maintenance       

at-nbp          202/tcp    AppleTalk Name Binding

at-nbp          202/udp    AppleTalk Name Binding              

at-3            203/tcp    AppleTalk Unused                    

at-3            203/udp    AppleTalk Unused                    

at-echo         204/tcp    AppleTalk Echo                      

at-echo         204/udp    AppleTalk Echo                      

at-5            205/tcp    AppleTalk Unused                    

at-5            205/udp    AppleTalk Unused                    

at-zis          206/tcp    AppleTalk Zone Information          

at-zis          206/udp    AppleTalk Zone Information          

at-7            207/tcp    AppleTalk Unused                    

at-7            207/udp    AppleTalk Unused                    

at-8            208/tcp    AppleTalk Unused                    

at-8            208/udp    AppleTalk Unused                    

#                          Rob Chandhok <>

qmtp            209/tcp    The Quick Mail Transfer Protocol

qmtp            209/udp    The Quick Mail Transfer Protocol

#                          Dan Bernstein <>

z39.50          210/tcp    ANSI Z39.50

z39.50          210/udp    ANSI Z39.50

#                          Mark H. Needleman <> 

914c/g          211/tcp    Texas Instruments 914C/G Terminal

914c/g          211/udp    Texas Instruments 914C/G Terminal

#                          Bill Harrell <---none--->

anet            212/tcp    ATEXSSTR   

anet            212/udp    ATEXSSTR   

#                          Jim Taylor <>

ipx             213/tcp    IPX 

ipx             213/udp    IPX

#                          Don Provan <>

vmpwscs         214/tcp    VM PWSCS

vmpwscs         214/udp    VM PWSCS

#                          Dan Shia <dset!shia@uunet.UU.NET>

softpc          215/tcp    Insignia Solutions

softpc          215/udp    Insignia Solutions

#                          Martyn Thomas <---none--->

CAIlic          216/tcp    Computer Associates Int'l License Server

CAIlic          216/udp    Computer Associates Int'l License Server

#                          Chuck Spitz <>

dbase           217/tcp    dBASE Unix

dbase           217/udp    dBASE Unix

#                          Don Gibson

#               <sequent!aero!twinsun!ashtate.A-T.COM!dong@uunet.UU.NET> 

mpp             218/tcp    Netix Message Posting Protocol

mpp             218/udp    Netix Message Posting Protocol

#                          Shannon Yeh <>

uarps           219/tcp    Unisys ARPs               

uarps           219/udp    Unisys ARPs               

#                          Ashok Marwaha <---none--->

imap3           220/tcp    Interactive Mail Access Protocol v3

imap3           220/udp    Interactive Mail Access Protocol v3

#                          James Rice <RICE@SUMEX-AIM.STANFORD.EDU>

fln-spx         221/tcp    Berkeley rlogind with SPX auth   

fln-spx         221/udp    Berkeley rlogind with SPX auth   

rsh-spx         222/tcp    Berkeley rshd with SPX auth      

rsh-spx         222/udp    Berkeley rshd with SPX auth      

cdc             223/tcp    Certificate Distribution Center  

cdc             223/udp    Certificate Distribution Center  

#                          Kannan Alagappan <>

########### Possible Conflict of Port 222 with "Masqdialer"##############

### Contact for Masqdialer is Charles Wright <>###

masqdialer      224/tcp    masqdialer

masqdialer      224/udp    masqdialer

#                          Charles Wright <>

#               225-241    Reserved

#                          Jon Postel <>

direct          242/tcp    Direct

direct          242/udp    Direct

#                          Herb Sutter <>

sur-meas        243/tcp    Survey Measurement          

sur-meas        243/udp    Survey Measurement          

#                          Dave Clark <ddc@LCS.MIT.EDU>

inbusiness      244/tcp    inbusiness

inbusiness      244/udp    inbusiness

#                          Derrick Hisatake <>

link            245/tcp    LINK

link            245/udp    LINK

dsp3270         246/tcp    Display Systems Protocol        

dsp3270         246/udp    Display Systems Protocol        

#                          Weldon J. Showalter <Gamma@MINTAKA.DCA.MIL>

subntbcst_tftp  247/tcp    SUBNTBCST_TFTP

subntbcst_tftp  247/udp    SUBNTBCST_TFTP

#                          John Fake <>

bhfhs           248/tcp    bhfhs

bhfhs           248/udp    bhfhs

#                          John Kelly <>

#               249-255    Reserved

#                          Jon Postel <>

rap             256/tcp    RAP

rap             256/udp    RAP

#                          J.S. Greenfield <>

set             257/tcp    Secure Electronic Transaction

set             257/udp    Secure Electronic Transaction

#                          Donald Eastlake <>

yak-chat        258/tcp    Yak Winsock Personal Chat

yak-chat        258/udp    Yak Winsock Personal Chat

#                          Brian Bandy <>

esro-gen        259/tcp    Efficient Short Remote Operations

esro-gen        259/udp    Efficient Short Remote Operations

#                          Mohsen Banan <>

openport        260/tcp    Openport

openport        260/udp    Openport

#                          John Marland <>

nsiiops         261/tcp    IIOP Name Service over TLS/SSL

nsiiops         261/udp    IIOP Name Service over TLS/SSL

#                          Jeff Stewart <>

arcisdms        262/tcp    Arcisdms

arcisdms        262/udp    Arcisdms

#                          Russell Crook (>

hdap            263/tcp    HDAP

hdap            263/udp    HDAP

#                          Troy Gau <>

bgmp            264/tcp    BGMP

bgmp            264/udp    BGMP

#                          Dave Thaler <>

x-bone-ctl      265/tcp    X-Bone CTL

x-bone-ctl      265/udp    X-Bone CTL

#                          Joe Touch <>

sst             266/tcp    SCSI on ST

sst             266/udp    SCSI on ST

#                          Donald D. Woelz <>

td-service      267/tcp    Tobit David Service Layer

td-service      267/udp    Tobit David Service Layer

td-replica      268/tcp    Tobit David Replica

td-replica      268/udp    Tobit David Replica

#                          Franz-Josef Leuders <>

#               269-279    Unassigned

http-mgmt       280/tcp    http-mgmt

http-mgmt       280/udp    http-mgmt

#                          Adrian Pell

#                        <PELL_ADRIAN/>

personal-link   281/tcp    Personal Link

personal-link   281/udp    Personal Link

#                          Dan Cummings <>

cableport-ax    282/tcp    Cable Port A/X

cableport-ax    282/udp    Cable Port A/X

#                          Craig Langfahl 


rescap          283/tcp    rescap

rescap          283/udp    rescap

#                          Paul Hoffman <>

corerjd         284/tcp    corerjd

corerjd         284/udp    corerjd

#                          Chris Thornhill <>

#               285        Unassigned  

fxp             286/tcp    FXP Communication

fxp             286/udp    FXP Communication

#                          James Darnall <>  

k-block         287/tcp    K-BLOCK

k-block         287/udp    K-BLOCK

#                          Simon P Jackson <>    

#               288-307    Unassigned

novastorbakcup  308/tcp    Novastor Backup

novastorbakcup  308/udp    Novastor Backup

#                          Brian Dickman <>

entrusttime     309/tcp    EntrustTime    

entrusttime     309/udp    EntrustTime    

#                          Peter Whittaker <>

bhmds           310/tcp    bhmds

bhmds           310/udp    bhmds

#                          John Kelly <>

asip-webadmin   311/tcp    AppleShare IP WebAdmin

asip-webadmin   311/udp    AppleShare IP WebAdmin

#                          Ann Huang <>

vslmp           312/tcp    VSLMP

vslmp           312/udp    VSLMP

#                          Gerben Wierda <>

magenta-logic   313/tcp    Magenta Logic

magenta-logic   313/udp    Magenta Logic

#                          Karl Rousseau <>

opalis-robot    314/tcp    Opalis Robot

opalis-robot    314/udp    Opalis Robot

#                          Laurent Domenech, Opalis <>

dpsi            315/tcp    DPSI

dpsi            315/udp    DPSI

#                          Tony Scamurra <>

decauth         316/tcp    decAuth

decauth         316/udp    decAuth

#                          Michael Agishtein <>

zannet          317/tcp    Zannet

zannet          317/udp    Zannet

#                          Zan Oliphant <>

pkix-timestamp  318/tcp    PKIX TimeStamp

pkix-timestamp  318/udp    PKIX TimeStamp

#                          Robert Zuccherato 


ptp-event       319/tcp    PTP Event

ptp-event       319/udp    PTP Event

ptp-general     320/tcp    PTP General

ptp-general     320/udp    PTP General

#                          John Eidson <>

pip             321/tcp    PIP

pip             321/udp    PIP

#                          Gordon Mohr <>

rtsps           322/tcp    RTSPS

rtsps           322/udp    RTSPS

#                          Anders Klemets <>

#               323-332    Unassigned

texar           333/tcp    Texar Security Port

texar           333/udp    Texar Security Port

#                          Eugen Bacic <>

#               334-343    Unassigned

pdap            344/tcp    Prospero Data Access Protocol

pdap            344/udp    Prospero Data Access Protocol

#                          B. Clifford Neuman <>

pawserv         345/tcp    Perf Analysis Workbench

pawserv         345/udp    Perf Analysis Workbench

zserv           346/tcp    Zebra server

zserv           346/udp    Zebra server

fatserv         347/tcp    Fatmen Server

fatserv         347/udp    Fatmen Server

csi-sgwp        348/tcp    Cabletron Management Protocol

csi-sgwp        348/udp    Cabletron Management Protocol

mftp            349/tcp    mftp

mftp            349/udp    mftp

#                          Dave Feinleib <>

matip-type-a    350/tcp    MATIP Type A

matip-type-a    350/udp    MATIP Type A

matip-type-b    351/tcp    MATIP Type B

matip-type-b    351/udp    MATIP Type B

#                          Alain Robert <>

# The following entry records an unassigned but widespread use

bhoetty         351/tcp    bhoetty (added 5/21/97)

bhoetty         351/udp    bhoetty

#                          John Kelly <>

dtag-ste-sb     352/tcp    DTAG (assigned long ago)

dtag-ste-sb     352/udp    DTAG

#                          Ruediger Wald <>

# The following entry records an unassigned but widespread use

bhoedap4        352/tcp    bhoedap4 (added 5/21/97)

bhoedap4        352/udp    bhoedap4

#                          John Kelly <>

ndsauth         353/tcp    NDSAUTH

ndsauth         353/udp    NDSAUTH

#                          Jayakumar Ramalingam <>

bh611           354/tcp    bh611

bh611           354/udp    bh611

#                          John Kelly <>

datex-asn       355/tcp    DATEX-ASN

datex-asn       355/udp    DATEX-ASN

#                          Kenneth Vaughn <>

cloanto-net-1   356/tcp    Cloanto Net 1

cloanto-net-1   356/udp    Cloanto Net 1

#                          Michael Battilana <>

bhevent         357/tcp    bhevent

bhevent         357/udp    bhevent

#                          John Kelly <>

shrinkwrap      358/tcp    Shrinkwrap

shrinkwrap      358/udp    Shrinkwrap

#                          Bill Simpson <>

nsrmp           359/tcp    Network Security Risk Management Protocol

nsrmp           359/udp    Network Security Risk Management Protocol

#                          Eric Jacksch <>

scoi2odialog    360/tcp    scoi2odialog

scoi2odialog    360/udp    scoi2odialog

#                          Keith Petley <keithp@sco.COM>

semantix        361/tcp    Semantix

semantix        361/udp    Semantix

#                          Semantix <>

srssend         362/tcp    SRS Send

srssend         362/udp    SRS Send

#                          Curt Mayer <>

rsvp_tunnel     363/tcp    RSVP Tunnel

rsvp_tunnel     363/udp    RSVP Tunnel

#                          Andreas Terzis <>

aurora-cmgr     364/tcp    Aurora CMGR

aurora-cmgr     364/udp    Aurora CMGR

#                          Philip Budne <>

dtk             365/tcp    DTK

dtk             365/udp    DTK

#                          Fred Cohen <>

odmr            366/tcp    ODMR

odmr            366/udp    ODMR

#                          Randall Gellens <>

mortgageware    367/tcp    MortgageWare

mortgageware    367/udp    MortgageWare

#                          Ole Hellevik <>

qbikgdp         368/tcp    QbikGDP

qbikgdp         368/udp    QbikGDP

#                          Adrien de Croy <>

rpc2portmap     369/tcp    rpc2portmap 

rpc2portmap     369/udp    rpc2portmap

codaauth2       370/tcp    codaauth2

codaauth2       370/udp    codaauth2

#                          Robert Watson <>

clearcase       371/tcp    Clearcase

clearcase       371/udp    Clearcase

#                          Dave LeBlang <>

ulistproc       372/tcp    ListProcessor

ulistproc       372/udp    ListProcessor

#                          Anastasios Kotsikonas <>

legent-1        373/tcp    Legent Corporation

legent-1        373/udp    Legent Corporation

legent-2        374/tcp    Legent Corporation

legent-2        374/udp    Legent Corporation

#                          Keith Boyce <---none--->

hassle          375/tcp    Hassle

hassle          375/udp    Hassle

#                          Reinhard Doelz <>

nip             376/tcp    Amiga Envoy Network Inquiry Proto   

nip             376/udp    Amiga Envoy Network Inquiry Proto

#                          Heinz Wrobel <>

tnETOS          377/tcp    NEC Corporation

tnETOS          377/udp    NEC Corporation

dsETOS          378/tcp    NEC Corporation

dsETOS          378/udp    NEC Corporation

#                          Tomoo Fujita <>

is99c           379/tcp    TIA/EIA/IS-99 modem client

is99c           379/udp    TIA/EIA/IS-99 modem client

is99s           380/tcp    TIA/EIA/IS-99 modem server

is99s           380/udp    TIA/EIA/IS-99 modem server

#                          Frank Quick <>

hp-collector    381/tcp    hp performance data collector

hp-collector    381/udp    hp performance data collector

hp-managed-node 382/tcp    hp performance data managed node

hp-managed-node 382/udp    hp performance data managed node

hp-alarm-mgr    383/tcp    hp performance data alarm manager

hp-alarm-mgr    383/udp    hp performance data alarm manager

#                          Frank Blakely <>

arns            384/tcp    A Remote Network Server System

arns            384/udp    A Remote Network Server System

#                          David Hornsby <djh@munnari.OZ.AU>

ibm-app         385/tcp    IBM Application

ibm-app         385/udp    IBM Application

#                          Lisa Tomita <---none--->

asa             386/tcp    ASA Message Router Object Def.

asa             386/udp    ASA Message Router Object Def.

#                          Steve Laitinen <>

aurp            387/tcp    Appletalk Update-Based Routing Pro.

aurp            387/udp    Appletalk Update-Based Routing Pro.

#                          Chris Ranch <>

unidata-ldm     388/tcp    Unidata LDM  

unidata-ldm     388/udp    Unidata LDM 

#                          Glenn Davis <>

ldap            389/tcp    Lightweight Directory Access Protocol

ldap            389/udp    Lightweight Directory Access Protocol

#                          Tim Howes <>

uis             390/tcp    UIS

uis             390/udp    UIS

#                          Ed Barron <---none---> 

synotics-relay  391/tcp    SynOptics SNMP Relay Port

synotics-relay  391/udp    SynOptics SNMP Relay Port

synotics-broker 392/tcp    SynOptics Port Broker Port

synotics-broker 392/udp    SynOptics Port Broker Port

#                          Illan Raab <>

meta5           393/tcp    Meta5

meta5           393/udp    Meta5

#                          Jim Kanzler <>

embl-ndt        394/tcp    EMBL Nucleic Data Transfer

embl-ndt        394/udp    EMBL Nucleic Data Transfer

#                          Peter Gad <>

netcp           395/tcp    NETscout Control Protocol

netcp           395/udp    NETscout Control Protocol

#                          Anil Singhal <---none--->

netware-ip      396/tcp    Novell Netware over IP

netware-ip      396/udp    Novell Netware over IP

mptn            397/tcp    Multi Protocol Trans. Net.

mptn            397/udp    Multi Protocol Trans. Net.

#                          Soumitra Sarkar <>

kryptolan       398/tcp    Kryptolan

kryptolan       398/udp    Kryptolan

#                          Peter de Laval <>

iso-tsap-c2     399/tcp    ISO Transport Class 2 Non-Control over TCP

iso-tsap-c2     399/udp    ISO Transport Class 2 Non-Control over UDP

#                          Yanick Pouffary <>

work-sol        400/tcp    Workstation Solutions

work-sol        400/udp    Workstation Solutions

#                          Jim Ward <>

ups             401/tcp    Uninterruptible Power Supply

ups             401/udp    Uninterruptible Power Supply

#                          Charles Bennett <>

genie           402/tcp    Genie Protocol

genie           402/udp    Genie Protocol

#                          Mark Hankin <---none--->

decap           403/tcp    decap

decap           403/udp    decap

nced            404/tcp    nced

nced            404/udp    nced

ncld            405/tcp    ncld

ncld            405/udp    ncld

#                          Richard Jones <---none--->

imsp            406/tcp    Interactive Mail Support Protocol

imsp            406/udp    Interactive Mail Support Protocol

#                          John Myers <>

timbuktu        407/tcp    Timbuktu

timbuktu        407/udp    Timbuktu

#                          Marc Epard <>

prm-sm          408/tcp    Prospero Resource Manager Sys. Man.

prm-sm          408/udp    Prospero Resource Manager Sys. Man.

prm-nm          409/tcp    Prospero Resource Manager Node Man.

prm-nm          409/udp    Prospero Resource Manager Node Man.

#                          B. Clifford Neuman <>

decladebug      410/tcp    DECLadebug Remote Debug Protocol

decladebug      410/udp    DECLadebug Remote Debug Protocol

#                          Anthony Berent <>

rmt             411/tcp    Remote MT Protocol

rmt             411/udp    Remote MT Protocol

#                          Peter Eriksson <>

synoptics-trap  412/tcp    Trap Convention Port

synoptics-trap  412/udp    Trap Convention Port

#                          Illan Raab <>

smsp            413/tcp    Storage Management Services Protocol

smsp            413/udp    Storage Management Services Protocol

#                          Murthy Srinivas <>

infoseek        414/tcp    InfoSeek

infoseek        414/udp    InfoSeek

#                          Steve Kirsch <>

bnet            415/tcp    BNet

bnet            415/udp    BNet

#                          Jim Mertz <>

silverplatter   416/tcp    Silverplatter

silverplatter   416/udp    Silverplatter

#                          Peter Ciuffetti <>

onmux           417/tcp    Onmux

onmux           417/udp    Onmux

#                          Stephen Hanna <>

hyper-g         418/tcp    Hyper-G

hyper-g         418/udp    Hyper-G

#                          Frank Kappe <>

ariel1          419/tcp    Ariel 1

ariel1          419/udp    Ariel 1

#                          Joel Karafin <>

smpte           420/tcp    SMPTE

smpte           420/udp    SMPTE

#                          Si Becker <71362.22@CompuServe.COM>

ariel2          421/tcp    Ariel 2

ariel2          421/udp    Ariel 2

ariel3          422/tcp    Ariel 3

ariel3          422/udp    Ariel 3 

#                          Joel Karafin <>

opc-job-start   423/tcp    IBM Operations Planning and Control Start

opc-job-start   423/udp    IBM Operations Planning and Control Start

opc-job-track   424/tcp    IBM Operations Planning and Control Track

opc-job-track   424/udp    IBM Operations Planning and Control Track

#                          Conny Larsson  <cocke@VNET.IBM.COM>

icad-el         425/tcp    ICAD

icad-el         425/udp    ICAD

#                          Larry Stone  <>

smartsdp        426/tcp    smartsdp

smartsdp        426/udp    smartsdp

#                          Alexander Dupuy <>

svrloc          427/tcp    Server Location

svrloc          427/udp    Server Location

#                          <>

ocs_cmu         428/tcp    OCS_CMU

ocs_cmu         428/udp    OCS_CMU

ocs_amu         429/tcp    OCS_AMU

ocs_amu         429/udp    OCS_AMU

#                          Florence Wyman <>

utmpsd          430/tcp    UTMPSD

utmpsd          430/udp    UTMPSD

utmpcd          431/tcp    UTMPCD

utmpcd          431/udp    UTMPCD

iasd            432/tcp    IASD  

iasd            432/udp    IASD  

#                          Nir Baroz <>

nnsp            433/tcp    NNSP

nnsp            433/udp    NNSP

#                          Rob Robertson <>

mobileip-agent  434/tcp    MobileIP-Agent

mobileip-agent  434/udp    MobileIP-Agent

mobilip-mn      435/tcp    MobilIP-MN

mobilip-mn      435/udp    MobilIP-MN

#                          Kannan Alagappan <>

dna-cml         436/tcp    DNA-CML   

dna-cml         436/udp    DNA-CML   

#                          Dan Flowers <>

comscm          437/tcp    comscm

comscm          437/udp    comscm

#                          Jim Teague <>

dsfgw           438/tcp    dsfgw

dsfgw           438/udp    dsfgw

#                          Andy McKeen <>

dasp            439/tcp    dasp      Thomas Obermair

dasp            439/udp    dasp

#                          Thomas Obermair <>

sgcp            440/tcp    sgcp      

sgcp            440/udp    sgcp      

#                          Marshall Rose <>

decvms-sysmgt   441/tcp    decvms-sysmgt

decvms-sysmgt   441/udp    decvms-sysmgt

#                          Lee Barton <>

cvc_hostd       442/tcp    cvc_hostd

cvc_hostd       442/udp    cvc_hostd

#                          Bill Davidson <>

https           443/tcp    http protocol over TLS/SSL

https           443/udp    http protocol over TLS/SSL

#                          Kipp E.B. Hickman <>

snpp            444/tcp    Simple Network Paging Protocol

snpp            444/udp    Simple Network Paging Protocol

#                          [RFC1568]

microsoft-ds    445/tcp    Microsoft-DS

microsoft-ds    445/udp    Microsoft-DS

#                          Pradeep Bahl <>

ddm-rdb         446/tcp    DDM-Remote Relational Database Access

ddm-rdb         446/udp    DDM-Remote Relational Database Access

ddm-dfm         447/tcp    DDM-Distributed File Management

ddm-dfm         447/udp    DDM-Distributed File Management

#                          Steven Ritland <>

ddm-ssl         448/tcp    DDM-Remote DB Access Using Secure Sockets

ddm-ssl         448/udp    DDM-Remote DB Access Using Secure Sockets

#                          Steven Ritland <>

as-servermap    449/tcp    AS Server Mapper

as-servermap    449/udp    AS Server Mapper

#                          Barbara Foss <>

tserver         450/tcp    Computer Supported Telecomunication Applications

tserver         450/udp    Computer Supported Telecomunication Applications

#                          Harvey S. Schultz <>

sfs-smp-net     451/tcp    Cray Network Semaphore server

sfs-smp-net     451/udp    Cray Network Semaphore server

sfs-config      452/tcp    Cray SFS config server

sfs-config      452/udp    Cray SFS config server

#                          Walter Poxon <>

creativeserver  453/tcp    CreativeServer

creativeserver  453/udp    CreativeServer

contentserver   454/tcp    ContentServer

contentserver   454/udp    ContentServer

creativepartnr  455/tcp    CreativePartnr

creativepartnr  455/udp    CreativePartnr

#                          Jesus Ortiz <>

macon-tcp       456/tcp    macon-tcp

macon-udp       456/udp    macon-udp

#                          Yoshinobu Inoue

#                          <>

scohelp         457/tcp    scohelp

scohelp         457/udp    scohelp

#                          Faith Zack <>

appleqtc        458/tcp    apple quick time

appleqtc        458/udp    apple quick time

#                          Murali Ranganathan 

#                          <>

ampr-rcmd       459/tcp    ampr-rcmd              

ampr-rcmd       459/udp    ampr-rcmd              

#                          Rob Janssen <>

skronk          460/tcp    skronk

skronk          460/udp    skronk

#                          Henry Strickland <>

datasurfsrv     461/tcp    DataRampSrv

datasurfsrv     461/udp    DataRampSrv

datasurfsrvsec  462/tcp    DataRampSrvSec

datasurfsrvsec  462/udp    DataRampSrvSec

#                          Diane Downie <downie@jibe.MV.COM>

alpes           463/tcp    alpes

alpes           463/udp    alpes

#                          Alain Durand <>

kpasswd         464/tcp    kpasswd

kpasswd         464/udp    kpasswd

#                          Theodore Ts'o <tytso@MIT.EDU>

urd             465/tcp    URL Rendesvous Directory for SSM

igmpv3lite      465/udp    IGMP over UDP for SSM 

#                          Toerless Eckert <>

digital-vrc     466/tcp    digital-vrc

digital-vrc     466/udp    digital-vrc

#                          Peter Higginson <>

mylex-mapd      467/tcp    mylex-mapd

mylex-mapd      467/udp    mylex-mapd

#                          Gary Lewis <>

photuris        468/tcp    proturis

photuris        468/udp    proturis

#                          Bill Simpson <>

rcp             469/tcp    Radio Control Protocol

rcp             469/udp    Radio Control Protocol

#                          Jim Jennings +1-708-538-7241

scx-proxy       470/tcp    scx-proxy

scx-proxy       470/udp    scx-proxy

#                          Scott Narveson <>

mondex          471/tcp    Mondex

mondex          471/udp    Mondex

#                          Bill Reding <>

ljk-login       472/tcp    ljk-login

ljk-login       472/udp    ljk-login

#                          LJK Software, Cambridge, Massachusetts

#                          <>

hybrid-pop      473/tcp    hybrid-pop

hybrid-pop      473/udp    hybrid-pop

#                          Rami Rubin <>

tn-tl-w1        474/tcp    tn-tl-w1

tn-tl-w2        474/udp    tn-tl-w2

#                          Ed Kress <>

tcpnethaspsrv   475/tcp    tcpnethaspsrv

tcpnethaspsrv   475/udp    tcpnethaspsrv

#                          Charlie Hava <>

tn-tl-fd1       476/tcp    tn-tl-fd1

tn-tl-fd1       476/udp    tn-tl-fd1

#                          Ed Kress <>

ss7ns           477/tcp    ss7ns

ss7ns           477/udp    ss7ns

#                          Jean-Michel URSCH <>

spsc            478/tcp    spsc

spsc            478/udp    spsc

#                          Mike Rieker <>

iafserver       479/tcp    iafserver

iafserver       479/udp    iafserver

iafdbase        480/tcp    iafdbase

iafdbase        480/udp    iafdbase

#                 <Rick Yazwinski>

ph              481/tcp    Ph service

ph              481/udp    Ph service

#                          Roland Hedberg <>

bgs-nsi         482/tcp    bgs-nsi

bgs-nsi         482/udp    bgs-nsi

#                          Jon Saperia <>         

ulpnet          483/tcp    ulpnet

ulpnet          483/udp    ulpnet

#                          Kevin Mooney <>

integra-sme     484/tcp    Integra Software Management Environment

integra-sme     484/udp    Integra Software Management Environment

#                          Randall Dow <>

powerburst      485/tcp    Air Soft Power Burst

powerburst      485/udp    Air Soft Power Burst

#                          <>

avian           486/tcp    avian

avian           486/udp    avian

#                          Robert Ullmann 

#                          <Robert_Ullmann/CAM/>

saft            487/tcp    saft Simple Asynchronous File Transfer

saft            487/udp    saft Simple Asynchronous File Transfer

#                          Ulli Horlacher <>

gss-http        488/tcp    gss-http

gss-http        488/udp    gss-http

#                          Doug Rosenthal <>

nest-protocol   489/tcp    nest-protocol

nest-protocol   489/udp    nest-protocol

#                          Gilles Gameiro <>

micom-pfs       490/tcp    micom-pfs

micom-pfs       490/udp    micom-pfs

#                          David Misunas <>

go-login        491/tcp    go-login

go-login        491/udp    go-login

#                          Troy Morrison <>

ticf-1          492/tcp    Transport Independent Convergence for FNA

ticf-1          492/udp    Transport Independent Convergence for FNA

ticf-2          493/tcp    Transport Independent Convergence for FNA

ticf-2          493/udp    Transport Independent Convergence for FNA

#                          Mamoru Ito <>

pov-ray         494/tcp    POV-Ray

pov-ray         494/udp    POV-Ray

#                          POV-Team Co-ordinator 

#                          <>

intecourier     495/tcp    intecourier

intecourier     495/udp    intecourier

#                          Steve Favor <>

pim-rp-disc     496/tcp    PIM-RP-DISC

pim-rp-disc     496/udp    PIM-RP-DISC

#                          Dino Farinacci <>

dantz           497/tcp    dantz

dantz           497/udp    dantz

#                          Richard Zulch <>

siam            498/tcp    siam

siam            498/udp    siam

#                          Philippe Gilbert <>

iso-ill         499/tcp    ISO ILL Protocol

iso-ill         499/udp    ISO ILL Protocol

#                          Mark H. Needleman <>

isakmp          500/tcp    isakmp

isakmp          500/udp    isakmp

#                          Mark Schertler <>

stmf            501/tcp    STMF

stmf            501/udp    STMF

#                          Alan Ungar <>

asa-appl-proto  502/tcp    asa-appl-proto

asa-appl-proto  502/udp    asa-appl-proto

#                          Dennis Dube <>

intrinsa        503/tcp    Intrinsa

intrinsa        503/udp    Intrinsa

#                          Robert Ford <>

citadel         504/tcp    citadel

citadel         504/udp    citadel

#                          Art Cancro <>

mailbox-lm      505/tcp    mailbox-lm

mailbox-lm      505/udp    mailbox-lm

#                          Beverly Moody <>

ohimsrv         506/tcp    ohimsrv

ohimsrv         506/udp    ohimsrv

#                          Scott Powell <>

crs             507/tcp    crs

crs             507/udp    crs

#                          Brad Wright <>

xvttp           508/tcp    xvttp

xvttp           508/udp    xvttp

#                          Keith J. Alphonso <>

snare           509/tcp    snare

snare           509/udp    snare

#                          Dennis Batchelder <>

fcp             510/tcp    FirstClass Protocol

fcp             510/udp    FirstClass Protocol

#                          Mike Marshburn <>

passgo          511/tcp    PassGo

passgo          511/udp    PassGo

#                          John Rainford <>

exec            512/tcp    remote process execution;

#                          authentication performed using

#                          passwords and UNIX login names

comsat          512/udp

biff            512/udp    used by mail system to notify users

#                          of new mail received; currently

#                          receives messages only from 

#                          processes on the same machine

login           513/tcp    remote login a la telnet;

#                          automatic authentication performed

#                          based on priviledged port numbers

#                          and distributed data bases which

#                          identify "authentication domains"

who             513/udp    maintains data bases showing who's

#                          logged in to machines on a local 

#                          net and the load average of the

#                          machine

shell           514/tcp    cmd

#                          like exec, but automatic authentication 

#                          is performed as for login server

syslog          514/udp

printer         515/tcp    spooler

printer         515/udp    spooler

videotex        516/tcp    videotex

videotex        516/udp    videotex

#                          Daniel Mavrakis <>

talk            517/tcp    like tenex link, but across

#                          machine - unfortunately, doesn't

#                          use link protocol (this is actually

#                          just a rendezvous port from which a

#                          tcp connection is established)

talk            517/udp    like tenex link, but across

#                          machine - unfortunately, doesn't

#                          use link protocol (this is actually

#                          just a rendezvous port from which a

#                          tcp connection is established)

ntalk           518/tcp

ntalk           518/udp

utime           519/tcp    unixtime

utime           519/udp    unixtime

efs             520/tcp    extended file name server

router          520/udp    local routing process (on site);

#                          uses variant of Xerox NS routing

#                          information protocol - RIP

ripng           521/tcp    ripng

ripng           521/udp    ripng

#                          Robert E. Minnear <>

ulp             522/tcp    ULP    

ulp             522/udp    ULP    

#                          Max Morris <>

ibm-db2         523/tcp    IBM-DB2

ibm-db2         523/udp    IBM-DB2

#                          Juliana Hsu <>

ncp             524/tcp    NCP

ncp             524/udp    NCP    

#                          Don Provan <>

timed           525/tcp    timeserver

timed           525/udp    timeserver

tempo           526/tcp    newdate

tempo           526/udp    newdate

#                          Unknown

stx             527/tcp    Stock IXChange

stx             527/udp    Stock IXChange

custix          528/tcp    Customer IXChange

custix          528/udp    Customer IXChange

#                          Ferdi Ladeira <> 

irc-serv        529/tcp    IRC-SERV

irc-serv        529/udp    IRC-SERV

#                          Brian Tackett <>

courier         530/tcp    rpc

courier         530/udp    rpc

conference      531/tcp    chat

conference      531/udp    chat

netnews         532/tcp    readnews

netnews         532/udp    readnews

netwall         533/tcp    for emergency broadcasts

netwall         533/udp    for emergency broadcasts

mm-admin        534/tcp    MegaMedia Admin

mm-admin        534/udp    MegaMedia Admin

#                          Andreas Heidemann <>

iiop            535/tcp    iiop

iiop            535/udp    iiop

#                          Jeff M.Michaud <>

opalis-rdv      536/tcp    opalis-rdv

opalis-rdv      536/udp    opalis-rdv

#                          Laurent Domenech <>

nmsp            537/tcp    Networked Media Streaming Protocol

nmsp            537/udp    Networked Media Streaming Protocol

#                          Paul Santinelli Jr. <>

gdomap          538/tcp    gdomap

gdomap          538/udp    gdomap

#                          Richard Frith-Macdonald


apertus-ldp     539/tcp    Apertus Technologies Load Determination

apertus-ldp     539/udp    Apertus Technologies Load Determination

uucp            540/tcp    uucpd

uucp            540/udp    uucpd

uucp-rlogin     541/tcp    uucp-rlogin  

uucp-rlogin     541/udp    uucp-rlogin

#                          Stuart Lynne <>

commerce        542/tcp    commerce

commerce        542/udp    commerce

#                          Randy Epstein <>

klogin          543/tcp

klogin          543/udp

kshell          544/tcp    krcmd

kshell          544/udp    krcmd

appleqtcsrvr    545/tcp    appleqtcsrvr

appleqtcsrvr    545/udp    appleqtcsrvr

#                          Murali Ranganathan 

#                          <>

dhcpv6-client   546/tcp    DHCPv6 Client

dhcpv6-client   546/udp    DHCPv6 Client

dhcpv6-server   547/tcp    DHCPv6 Server

dhcpv6-server   547/udp    DHCPv6 Server

#                          Jim Bound <>

afpovertcp      548/tcp    AFP over TCP

afpovertcp      548/udp    AFP over TCP

#                          Leland Wallace <>

idfp            549/tcp    IDFP

idfp            549/udp    IDFP

#                          Ramana Kovi <>

new-rwho        550/tcp    new-who

new-rwho        550/udp    new-who

cybercash       551/tcp    cybercash

cybercash       551/udp    cybercash

#                          Donald E. Eastlake 3rd <>

devshr-nts      552/tcp    DeviceShare

devshr-nts      552/udp    DeviceShare

#                          Benjamin Rosenberg <>

pirp            553/tcp    pirp

pirp            553/udp    pirp

#                          D. J. Bernstein <>

rtsp            554/tcp    Real Time Stream Control Protocol

rtsp            554/udp    Real Time Stream Control Protocol

#                          Rob Lanphier <>

dsf             555/tcp

dsf             555/udp

remotefs        556/tcp    rfs server

remotefs        556/udp    rfs server

openvms-sysipc  557/tcp    openvms-sysipc

openvms-sysipc  557/udp    openvms-sysipc

#                          Alan Potter <>

sdnskmp         558/tcp    SDNSKMP

sdnskmp         558/udp    SDNSKMP

teedtap         559/tcp    TEEDTAP

teedtap         559/udp    TEEDTAP

#                          Mort Hoffman <>

rmonitor        560/tcp    rmonitord

rmonitor        560/udp    rmonitord

monitor         561/tcp

monitor         561/udp

chshell         562/tcp    chcmd

chshell         562/udp    chcmd

nntps           563/tcp    nntp protocol over TLS/SSL (was snntp)

nntps           563/udp    nntp protocol over TLS/SSL (was snntp)

#                          Kipp E.B. Hickman <>

9pfs            564/tcp    plan 9 file service

9pfs            564/udp    plan 9 file service

whoami          565/tcp    whoami

whoami          565/udp    whoami

streettalk      566/tcp    streettalk

streettalk      566/udp    streettalk

banyan-rpc      567/tcp    banyan-rpc

banyan-rpc      567/udp    banyan-rpc

#                          Tom Lemaire <>

ms-shuttle      568/tcp    microsoft shuttle

ms-shuttle      568/udp    microsoft shuttle

#                          Rudolph Balaz <>

ms-rome         569/tcp    microsoft rome

ms-rome         569/udp    microsoft rome

#                          Rudolph Balaz <>

meter           570/tcp    demon

meter           570/udp    demon

meter           571/tcp    udemon

meter           571/udp    udemon

sonar           572/tcp    sonar

sonar           572/udp    sonar

#                          Keith Moore <>

banyan-vip      573/tcp    banyan-vip

banyan-vip      573/udp    banyan-vip

#                          Denis Leclerc <>

ftp-agent       574/tcp    FTP Software Agent System

ftp-agent       574/udp    FTP Software Agent System

#                          Michael S. Greenberg <>

vemmi           575/tcp    VEMMI

vemmi           575/udp    VEMMI

#                          Daniel Mavrakis <>

ipcd            576/tcp    ipcd

ipcd            576/udp    ipcd

vnas            577/tcp    vnas

vnas            577/udp    vnas

ipdd            578/tcp    ipdd

ipdd            578/udp    ipdd

#                          Jay Farhat <>

decbsrv         579/tcp    decbsrv

decbsrv         579/udp    decbsrv

#                          Rudi Martin 


sntp-heartbeat  580/tcp    SNTP HEARTBEAT

sntp-heartbeat  580/udp    SNTP HEARTBEAT

#                          Louis Mamakos <>

bdp             581/tcp    Bundle Discovery Protocol

bdp             581/udp    Bundle Discovery Protocol

#                          Gary Malkin <>

scc-security    582/tcp    SCC Security

scc-security    582/udp    SCC Security

#                          Prashant Dholakia <>

philips-vc      583/tcp    Philips Video-Conferencing

philips-vc      583/udp    Philips Video-Conferencing

#                          Janna Chang <>

keyserver       584/tcp    Key Server

keyserver       584/udp    Key Server

#                          Gary Howland <>

imap4-ssl       585/tcp    IMAP4+SSL (use 993 instead)

imap4-ssl       585/udp    IMAP4+SSL (use 993 instead)

#                          Terry Gray <>

#               Use of 585 is not recommended, use 993 instead

password-chg    586/tcp    Password Change

password-chg    586/udp    Password Change

submission      587/tcp    Submission

submission      587/udp    Submission

#                          Randy Gellens <>

cal             588/tcp    CAL

cal             588/udp    CAL

#                          Myron Hattig <>

eyelink         589/tcp    EyeLink

eyelink         589/udp    EyeLink

#                          Dave Stampe <>

tns-cml         590/tcp    TNS CML

tns-cml         590/udp    TNS CML

#                          Jerome Albin <>

http-alt        591/tcp    FileMaker, Inc. - HTTP Alternate (see Port 80)

http-alt        591/udp    FileMaker, Inc. - HTTP Alternate (see Port 80)

#                          Clay Maeckel <>

eudora-set      592/tcp    Eudora Set

eudora-set      592/udp    Eudora Set

#                          Randall Gellens <>

http-rpc-epmap  593/tcp    HTTP RPC Ep Map

http-rpc-epmap  593/udp    HTTP RPC Ep Map

#                          Edward Reus <>

tpip            594/tcp    TPIP

tpip            594/udp    TPIP

#                          Brad Spear <>

cab-protocol    595/tcp    CAB Protocol

cab-protocol    595/udp    CAB Protocol

#                          Winston Hetherington

smsd            596/tcp    SMSD

smsd            596/udp    SMSD

#                          Wayne Barlow <>

ptcnameservice  597/tcp    PTC Name Service

ptcnameservice  597/udp    PTC Name Service

#                          Yuri Machkasov <>

sco-websrvrmg3  598/tcp    SCO Web Server Manager 3

sco-websrvrmg3  598/udp    SCO Web Server Manager 3

#                          Simon Baldwin <>

acp             599/tcp    Aeolon Core Protocol

acp             599/udp    Aeolon Core Protocol

#                          Michael Alyn Miller <>

ipcserver       600/tcp    Sun IPC server

ipcserver       600/udp    Sun IPC server

#                          Bill Schiefelbein <>

syslog-conn     601/tcp    Reliable Syslog Service

syslog-conn     601/udp    Reliable Syslog Service

#                          RFC 3195

xmlrpc-beep     602/tcp    XML-RPC over BEEP

xmlrpc-beep     602/udp    XML-RPC over BEEP

#                          RFC3529 <> 

                           March 2003

idxp            603/tcp    IDXP

idxp            603/udp    IDXP

#                          RFC-ietf-idwg-beep-idxp-07.txt

tunnel          604/tcp    TUNNEL

tunnel          604/udp    TUNNEL

#                          RFC-ietf-idwg-beep-tunnel-05.txt

soap-beep       605/tcp    SOAP over BEEP

soap-beep       605/udp    SOAP over BEEP

#                          RFC3288 <> 

                           April 2002

urm             606/tcp    Cray Unified Resource Manager

urm             606/udp    Cray Unified Resource Manager

nqs             607/tcp    nqs

nqs             607/udp    nqs

#                          Bill Schiefelbein <>

sift-uft        608/tcp    Sender-Initiated/Unsolicited File Transfer 

sift-uft        608/udp    Sender-Initiated/Unsolicited File Transfer

#                          Rick Troth <>

npmp-trap       609/tcp    npmp-trap

npmp-trap       609/udp    npmp-trap

npmp-local      610/tcp    npmp-local

npmp-local      610/udp    npmp-local

npmp-gui        611/tcp    npmp-gui  

npmp-gui        611/udp    npmp-gui  

#                          John Barnes <>

hmmp-ind        612/tcp    HMMP Indication

hmmp-ind        612/udp    HMMP Indication

hmmp-op         613/tcp    HMMP Operation

hmmp-op         613/udp    HMMP Operation

#                          Andrew Sinclair <>

sshell          614/tcp    SSLshell

sshell          614/udp    SSLshell

#                          Simon J. Gerraty <>

sco-inetmgr     615/tcp    Internet Configuration Manager

sco-inetmgr     615/udp    Internet Configuration Manager

sco-sysmgr      616/tcp    SCO System Administration Server

sco-sysmgr      616/udp    SCO System Administration Server

sco-dtmgr       617/tcp    SCO Desktop Administration Server

sco-dtmgr       617/udp    SCO Desktop Administration Server

#                          Christopher Durham <>

dei-icda        618/tcp    DEI-ICDA

dei-icda        618/udp    DEI-ICDA

#                          David Turner <>

compaq-evm      619/tcp    Compaq EVM

compaq-evm      619/udp    Compaq EVM

#                          Jem Treadwell <>

sco-websrvrmgr  620/tcp    SCO WebServer Manager

sco-websrvrmgr  620/udp    SCO WebServer Manager

#                          Christopher Durham <>

escp-ip         621/tcp    ESCP

escp-ip         621/udp    ESCP

#                          Lai Zit Seng <>

collaborator    622/tcp    Collaborator

collaborator    622/udp    Collaborator

#                          Johnson Davis <>

asf-rmcp        623/tcp    ASF Remote Management and Control Protocol

asf-rmcp        623/udp    ASF Remote Management and Control Protocol

#                          Carl First <>

cryptoadmin     624/tcp    Crypto Admin

cryptoadmin     624/udp    Crypto Admin

#                          Tony Walker <>

dec_dlm         625/tcp    DEC DLM

dec_dlm         625/udp    DEC DLM

#                          Rudi Martin <>

asia            626/tcp    ASIA

asia            626/udp    ASIA

#                          Michael Dasenbrock <>

passgo-tivoli   627/tcp    PassGo Tivoli

passgo-tivoli   627/udp    PassGo Tivoli

#                          Chris Hall <>

qmqp            628/tcp    QMQP

qmqp            628/udp    QMQP

#                          Dan Bernstein <>

3com-amp3       629/tcp    3Com AMP3

3com-amp3       629/udp    3Com AMP3

#                          Prakash Banthia <>

rda             630/tcp    RDA

rda             630/udp    RDA

#                          John Hadjioannou <>

ipp             631/tcp    IPP (Internet Printing Protocol)

ipp             631/udp    IPP (Internet Printing Protocol)

#                          Carl-Uno Manros <>

bmpp            632/tcp    bmpp

bmpp            632/udp    bmpp

#                          Troy Rollo <>

servstat        633/tcp    Service Status update (Sterling Software)

servstat        633/udp    Service Status update (Sterling Software)

#                          Greg Rose <>

ginad           634/tcp    ginad

ginad           634/udp    ginad

#                          Mark Crother <>

rlzdbase        635/tcp    RLZ DBase

rlzdbase        635/udp    RLZ DBase

#                          Michael Ginn <>

ldaps           636/tcp    ldap protocol over TLS/SSL (was sldap)

ldaps           636/udp    ldap protocol over TLS/SSL (was sldap)

#                          Pat Richard <>

lanserver       637/tcp    lanserver

lanserver       637/udp    lanserver

#                          Chris Larsson <clarsson@VNET.IBM.COM>

mcns-sec        638/tcp    mcns-sec

mcns-sec        638/udp    mcns-sec

#                          Kaz Ozawa <>

msdp            639/tcp    MSDP

msdp            639/udp    MSDP

#                          Dino Farinacci <>

entrust-sps     640/tcp    entrust-sps

entrust-sps     640/udp    entrust-sps

#                          Marek Buchler <>

repcmd          641/tcp    repcmd

repcmd          641/udp    repcmd

#                          Scott Dale <>

esro-emsdp      642/tcp    ESRO-EMSDP V1.3

esro-emsdp      642/udp    ESRO-EMSDP V1.3

#                          Mohsen Banan <> 

sanity          643/tcp    SANity

sanity          643/udp    SANity

#                          Peter Viscarola <>

dwr             644/tcp    dwr

dwr             644/udp    dwr

#                          Bill Fenner <>

pssc            645/tcp    PSSC

pssc            645/udp    PSSC

#                          Egon Meier-Engelen <>

ldp             646/tcp    LDP

ldp             646/udp    LDP

#                          Bob Thomas <>

dhcp-failover   647/tcp    DHCP Failover

dhcp-failover   647/udp    DHCP Failover

#                          Bernard Volz <> 

rrp             648/tcp    Registry Registrar Protocol (RRP)

rrp             648/udp    Registry Registrar Protocol (RRP)

#                          Scott Hollenbeck <>

cadview-3d      649/tcp    Cadview-3d - streaming 3d models over the 


cadview-3d      649/udp    Cadview-3d - streaming 3d models over the 


#                          David Cooper <> 

obex            650/tcp    OBEX

obex            650/udp    OBEX

#                          Jeff Garbers <>

ieee-mms        651/tcp    IEEE MMS

ieee-mms        651/udp    IEEE MMS

#                          Curtis Anderson <>

hello-port      652/tcp    HELLO_PORT

hello-port      652/udp    HELLO_PORT

#                          Patrick Cipiere <>

repscmd         653/tcp    RepCmd

repscmd         653/udp    RepCmd

#                          Scott Dale <>

aodv            654/tcp    AODV

aodv            654/udp    AODV

#                          Charles Perkins <>

tinc            655/tcp    TINC

tinc            655/udp    TINC

#                          Ivo Timmermans <>

spmp            656/tcp    SPMP

spmp            656/udp    SPMP

#                          Jakob Kaivo <>

rmc             657/tcp    RMC

rmc             657/udp    RMC

#                          Michael Schmidt <>

tenfold         658/tcp    TenFold

tenfold         658/udp    TenFold

#                          Louis Olszyk <>

#               659        Removed (2001-06-06)

mac-srvr-admin  660/tcp    MacOS Server Admin

mac-srvr-admin  660/udp    MacOS Server Admin

#                          Forest Hill <>

hap             661/tcp    HAP

hap             661/udp    HAP

#                          Igor Plotnikov <>

pftp            662/tcp    PFTP

pftp            662/udp    PFTP

#                          Ben Schluricke <>

purenoise       663/tcp    PureNoise

purenoise       663/udp    PureNoise

#                          Sam Osa <>

asf-secure-rmcp 664/tcp    ASF Secure Remote Management and Control 


asf-secure-rmcp 664/udp    ASF Secure Remote Management and Control 


#                          Carl First <>

sun-dr          665/tcp    Sun DR

sun-dr          665/udp    Sun DR

#                          Harinder Bhasin <Harinder.Bhasin@Sun.COM>

mdqs            666/tcp

mdqs            666/udp

doom            666/tcp    doom Id Software

doom            666/udp    doom Id Software

#                          <>

disclose        667/tcp    campaign contribution disclosures - SDR 


disclose        667/udp    campaign contribution disclosures - SDR 


#                          Jim Dixon  <>

mecomm          668/tcp    MeComm

mecomm          668/udp    MeComm

meregister      669/tcp    MeRegister

meregister      669/udp    MeRegister

#                          Armin Sawusch <>

vacdsm-sws      670/tcp    VACDSM-SWS

vacdsm-sws      670/udp    VACDSM-SWS

vacdsm-app      671/tcp    VACDSM-APP

vacdsm-app      671/udp    VACDSM-APP

vpps-qua        672/tcp    VPPS-QUA

vpps-qua        672/udp    VPPS-QUA

cimplex         673/tcp    CIMPLEX

cimplex         673/udp    CIMPLEX

#                          Ulysses G. Smith Jr. <>

acap            674/tcp    ACAP

acap            674/udp    ACAP

#                          Chris Newman <>

dctp            675/tcp    DCTP

dctp            675/udp    DCTP

#                          Andre Kramer <>

vpps-via        676/tcp    VPPS Via

vpps-via        676/udp    VPPS Via

#                          Ulysses G. Smith Jr. <>

vpp             677/tcp    Virtual Presence Protocol 

vpp             677/udp    Virtual Presence Protocol 

#                          Klaus Wolf <>

ggf-ncp         678/tcp    GNU Generation Foundation NCP

ggf-ncp         678/udp    GNU Generation Foundation NCP

#                          Noah Paul <>

mrm             679/tcp    MRM

mrm             679/udp    MRM

#                          Liming Wei <>

entrust-aaas    680/tcp    entrust-aaas 

entrust-aaas    680/udp    entrust-aaas 

entrust-aams    681/tcp    entrust-aams

entrust-aams    681/udp    entrust-aams

#                          Adrian Mancini <>

xfr             682/tcp    XFR

xfr             682/udp    XFR

#                          Noah Paul <>

corba-iiop      683/tcp    CORBA IIOP 

corba-iiop      683/udp    CORBA IIOP 

corba-iiop-ssl  684/tcp    CORBA IIOP SSL

corba-iiop-ssl  684/udp    CORBA IIOP SSL

#                          Henry Lowe <>

mdc-portmapper  685/tcp    MDC Port Mapper

mdc-portmapper  685/udp    MDC Port Mapper

#                          Noah Paul <>

hcp-wismar      686/tcp    Hardware Control Protocol Wismar

hcp-wismar      686/udp    Hardware Control Protocol Wismar

#                          David Merchant <>

asipregistry    687/tcp    asipregistry

asipregistry    687/udp    asipregistry

#                          Erik Sea <>

realm-rusd      688/tcp    REALM-RUSD

realm-rusd      688/udp    REALM-RUSD

#                          Jerry Knight <>

nmap            689/tcp    NMAP

nmap            689/udp    NMAP

#                          Peter Dennis Bartok <>

vatp            690/tcp    VATP

vatp            690/udp    VATP

#                          Atica Software <>

msexch-routing  691/tcp    MS Exchange Routing

msexch-routing  691/udp    MS Exchange Routing

#                          David Lemson <>

hyperwave-isp   692/tcp    Hyperwave-ISP

hyperwave-isp   692/udp    Hyperwave-ISP

#                          Gerald Mesaric <>

connendp        693/tcp    connendp

connendp        693/udp    connendp

#                          Ronny Bremer <>

ha-cluster      694/tcp    ha-cluster

ha-cluster      694/udp    ha-cluster

#                          Alan Robertson <>

ieee-mms-ssl    695/tcp    IEEE-MMS-SSL

ieee-mms-ssl    695/udp    IEEE-MMS-SSL

#                          Curtis Anderson <> 

rushd           696/tcp    RUSHD

rushd           696/udp    RUSHD

#                          Greg Ercolano <>

uuidgen         697/tcp    UUIDGEN

uuidgen         697/udp    UUIDGEN

#                          James Falkner <>

olsr            698/tcp    OLSR

olsr            698/udp    OLSR

#                          Thomas Clausen <>   

accessnetwork   699/tcp    Access Network

accessnetwork   699/udp    Access Network

#                          Yingchun Xu <>

epp             700/tcp    Extensible Provisioning Protocol

epp             700/udp    Extensible Provisioning Protocol

#                          RFC-ietf-provreg-epp-tcp-06.txt

#               701-703    Unassigned

elcsd           704/tcp    errlog copy/server daemon

elcsd           704/udp    errlog copy/server daemon

agentx          705/tcp    AgentX

agentx          705/udp    AgentX

#                          Bob Natale <>

silc            706/tcp    SILC

silc            706/udp    SILC

#                          Pekka Riikonen <>

borland-dsj     707/tcp    Borland DSJ

borland-dsj     707/udp    Borland DSJ

#                          Gerg Cole <>

#               708        Unassigned

entrust-kmsh    709/tcp    Entrust Key Management Service Handler

entrust-kmsh    709/udp    Entrust Key Management Service Handler

entrust-ash     710/tcp    Entrust Administration Service Handler

entrust-ash     710/udp    Entrust Administration Service Handler

#                          Peter Whittaker <>

cisco-tdp       711/tcp    Cisco TDP

cisco-tdp       711/udp    Cisco TDP

#                          Bruce Davie <>

#               712-728    Unassigned

netviewdm1      729/tcp    IBM NetView DM/6000 Server/Client

netviewdm1      729/udp    IBM NetView DM/6000 Server/Client

netviewdm2      730/tcp    IBM NetView DM/6000 send/tcp

netviewdm2      730/udp    IBM NetView DM/6000 send/tcp

netviewdm3      731/tcp    IBM NetView DM/6000 receive/tcp

netviewdm3      731/udp    IBM NetView DM/6000 receive/tcp

#                          Philippe Binet  (phbinet@vnet.IBM.COM)

#               732-740    Unassigned           

netgw           741/tcp    netGW

netgw           741/udp    netGW

#                          Oliver Korfmacher (

netrcs          742/tcp    Network based Rev. Cont. Sys.

netrcs          742/udp    Network based Rev. Cont. Sys.

#                          Gordon C. Galligher <>

#               743        Unassigned

flexlm          744/tcp    Flexible License Manager

flexlm          744/udp    Flexible License Manager

#                          Matt Christiano

#                          <> 

#               745-746    Unassigned

fujitsu-dev     747/tcp    Fujitsu Device Control

fujitsu-dev     747/udp    Fujitsu Device Control

ris-cm          748/tcp    Russell Info Sci Calendar Manager

ris-cm          748/udp    Russell Info Sci Calendar Manager

kerberos-adm    749/tcp    kerberos administration

kerberos-adm    749/udp    kerberos administration

rfile           750/tcp

loadav          750/udp

kerberos-iv     750/udp    kerberos version iv

#                          Martin Hamilton <>

pump            751/tcp

pump            751/udp

qrh             752/tcp

qrh             752/udp

rrh             753/tcp

rrh             753/udp

tell            754/tcp    send

tell            754/udp    send

#                          Josyula R. Rao <>

#               755-756    Unassigned

nlogin          758/tcp

nlogin          758/udp

con             759/tcp

con             759/udp

ns              760/tcp

ns              760/udp

rxe             761/tcp

rxe             761/udp

quotad          762/tcp

quotad          762/udp

cycleserv       763/tcp

cycleserv       763/udp

omserv          764/tcp

omserv          764/udp

webster         765/tcp

webster         765/udp

#                          Josyula R. Rao <>

#               766        Unassigned

phonebook       767/tcp    phone

phonebook       767/udp    phone

#                          Josyula R. Rao <>

#               768        Unassigned

vid             769/tcp

vid             769/udp

cadlock         770/tcp

cadlock         770/udp

rtip            771/tcp

rtip            771/udp

cycleserv2      772/tcp

cycleserv2      772/udp

submit          773/tcp

notify          773/udp

rpasswd         774/tcp

acmaint_dbd     774/udp

entomb          775/tcp

acmaint_transd  775/udp

wpages          776/tcp

wpages          776/udp

#                          Josyula R. Rao <>

multiling-http  777/tcp    Multiling HTTP

multiling-http  777/udp    Multiling HTTP

#                          Alejandro Bonet <>

#               778-779    Unassigned

wpgs            780/tcp

wpgs            780/udp

#                          Josyula R. Rao <>

#               781-785    Unassigned

#               786        Unassigned (Removed 2002-05-08)

#               787        Unassigned (Removed 2002-10-08)

#               788-799    Unassigned

mdbs_daemon     800/tcp

mdbs_daemon     800/udp

device          801/tcp

device          801/udp

#               802-809    Unassigned

fcp-udp         810/tcp    FCP

fcp-udp         810/udp    FCP Datagram

#                          Paul Whittemore <>

#               811-827    Unassigned

itm-mcell-s     828/tcp    itm-mcell-s

itm-mcell-s     828/udp    itm-mcell-s

#                          Miles O'Neal <>

pkix-3-ca-ra    829/tcp    PKIX-3 CA/RA

pkix-3-ca-ra    829/udp    PKIX-3 CA/RA

#                          Carlisle Adams <>

#               830-846    Unassigned

dhcp-failover2  847/tcp    dhcp-failover 2

dhcp-failover2  847/udp    dhcp-failover 2

#                          Bernard Volz <> 

gdoi            848/tcp    GDOI

gdoi            848/udp    GDOI

#                          RFC-ietf-msec-gdoi-07.txt

#               849-859    Unassigned

iscsi           860/tcp    iSCSI

iscsi           860/udp    iSCSI

#                          RFC-draft-ietf-ips-iscsi-20.txt

#               861-872    Unassigned

rsync           873/tcp    rsync

rsync           873/udp    rsync

#                          Andrew Tridgell <>

#               874-885    Unassigned

iclcnet-locate  886/tcp    ICL coNETion locate server

iclcnet-locate  886/udp    ICL coNETion locate server

#                          Bob Lyon <>

iclcnet_svinfo  887/tcp    ICL coNETion server info

iclcnet_svinfo  887/udp    ICL coNETion server info

#                          Bob Lyon <>

accessbuilder   888/tcp    AccessBuilder

accessbuilder   888/udp    AccessBuilder

#                          Steve Sweeney <>

# The following entry records an unassigned but widespread use

cddbp           888/tcp    CD Database Protocol

#                          Steve Scherf <>


#               889-899    Unassigned

omginitialrefs  900/tcp    OMG Initial Refs

omginitialrefs  900/udp    OMG Initial Refs

#                          Christian Callsen 


smpnameres      901/tcp    SMPNAMERES

smpnameres      901/udp    SMPNAMERES

#                          Leif Ekblad <>

ideafarm-chat   902/tcp    IDEAFARM-CHAT

ideafarm-chat   902/udp    IDEAFARM-CHAT

ideafarm-catch  903/tcp    IDEAFARM-CATCH

ideafarm-catch  903/udp    IDEAFARM-CATCH

#                          Wo'o Ideafarm <> 

#               904-910    Unassigned

xact-backup     911/tcp    xact-backup

xact-backup     911/udp    xact-backup

#                          Bill Carroll <>

apex-mesh       912/tcp    APEX relay-relay service

apex-mesh       912/udp    APEX relay-relay service

apex-edge       913/tcp    APEX endpoint-relay service

apex-edge       913/udp    APEX endpoint-relay service    

#                          [RFC3340]

#               914-988    Unassigned

ftps-data       989/tcp    ftp protocol, data, over TLS/SSL

ftps-data       989/udp    ftp protocol, data, over TLS/SSL

ftps            990/tcp    ftp protocol, control, over TLS/SSL

ftps            990/udp    ftp protocol, control, over TLS/SSL

#                          Christopher Allen <>

nas             991/tcp    Netnews Administration System

nas             991/udp    Netnews Administration System

#                          Vera Heinau <>

#                          Heiko Schlichting <>

telnets         992/tcp    telnet protocol over TLS/SSL

telnets         992/udp    telnet protocol over TLS/SSL

imaps           993/tcp    imap4 protocol over TLS/SSL

imaps           993/udp    imap4 protocol over TLS/SSL

ircs            994/tcp    irc protocol over TLS/SSL

ircs            994/udp    irc protocol over TLS/SSL

#                          Christopher Allen <>

pop3s           995/tcp    pop3 protocol over TLS/SSL (was spop3)

pop3s           995/udp    pop3 protocol over TLS/SSL (was spop3)

#                          Gordon Mangione <>

vsinet          996/tcp    vsinet

vsinet          996/udp    vsinet

#                          Rob Juergens <>

maitrd          997/tcp

maitrd          997/udp

busboy          998/tcp

puparp          998/udp

garcon          999/tcp

applix          999/udp    Applix ac

puprouter       999/tcp

puprouter       999/udp

cadlock2       1000/tcp

cadlock2       1000/udp

#              1001-1009   Unassigned

#              1008/udp    Possibly used by Sun Solaris????

surf           1010/tcp    surf

surf           1010/udp    surf

#                          Joseph Geer <>

#              1011-1022   Reserved

               1023/tcp    Reserved

               1023/udp    Reserved

#                          IANA <>

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