Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-03-18
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Kumiko Ono, Wes Eddy, Brian Trammell, 
Jana Iyengar, and Michael Scharf
SCTP: Michael Tuexen
DCCP: Eddie Kohler and Yoshifumi Nishida
Reference
[RFC6335]
Note
Service names and port numbers are used to distinguish between different
services that run over transport protocols such as TCP, UDP, DCCP, and
SCTP.

Service names are assigned on a first-come, first-served process, as
documented in [RFC6335].

Port numbers are assigned in various ways, based on three ranges: System
Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private
Ports (49152-65535); the different uses of these ranges are described in
[RFC6335]. According to Section 8.1.2 of [RFC6335], System Ports are 
assigned by the "IETF Review" or "IESG Approval" procedures described in 
[RFC8126]. User Ports are assigned by IANA using the "IETF Review" process, 
the "IESG Approval" process, or the "Expert Review" process, as per 
[RFC6335]. Dynamic Ports are not assigned.

The registration procedures for service names and port numbers are
described in [RFC6335].

Assigned ports both System and User ports SHOULD NOT be used without
or prior to IANA registration.

************************************************************************
* PLEASE NOTE THE FOLLOWING:                                           *
*                                                                      *
* ASSIGNMENT OF A PORT NUMBER DOES NOT IN ANY WAY IMPLY AN             *
* ENDORSEMENT OF AN APPLICATION OR PRODUCT, AND THE FACT THAT NETWORK  *
* TRAFFIC IS FLOWING TO OR FROM A REGISTERED PORT DOES NOT MEAN THAT   *
* IT IS "GOOD" TRAFFIC, NOR THAT IT NECESSARILY CORRESPONDS TO THE     *
* ASSIGNED SERVICE. FIREWALL AND SYSTEM ADMINISTRATORS SHOULD          *
* CHOOSE HOW TO CONFIGURE THEIR SYSTEMS BASED ON THEIR KNOWLEDGE OF    *
* THE TRAFFIC IN QUESTION, NOT WHETHER THERE IS A PORT NUMBER          *
* REGISTERED OR NOT.                                                   *
************************************************************************

Request an Assignment
  [https://www.iana.org/protocols/apply]

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Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Unauthorized Use Reported Assignment Notes
vqp 1589 tcp VQP [Keith_McCloghrie] [Keith_McCloghrie]
vqp 1589 udp VQP [Keith_McCloghrie] [Keith_McCloghrie]
gemini-lm 1590 tcp gemini-lm [Tony_Sawyer] [Tony_Sawyer]
gemini-lm 1590 udp gemini-lm [Tony_Sawyer] [Tony_Sawyer]
ncpm-pm 1591 tcp ncpm-pm [Ted_Power] [Ted_Power]
ncpm-pm 1591 udp ncpm-pm [Ted_Power] [Ted_Power]
commonspace 1592 tcp commonspace [Rob_Chandhok_2] [Rob_Chandhok_2]
commonspace 1592 udp commonspace [Rob_Chandhok_2] [Rob_Chandhok_2]
mainsoft-lm 1593 tcp mainsoft-lm [Anand_Gangadharan] [Anand_Gangadharan]
mainsoft-lm 1593 udp mainsoft-lm [Anand_Gangadharan] [Anand_Gangadharan]
sixtrak 1594 tcp sixtrak [Red_Lion_Controls] [Denis_Aull] 2014-09-22
sixtrak 1594 udp sixtrak [Red_Lion_Controls] [Denis_Aull] 2014-09-22
radio 1595 tcp radio
radio 1595 udp radio
radio-sm 1596 tcp radio-sm
radio-bc 1596 udp radio-bc [Ken_Chapman] [Ken_Chapman]
orbplus-iiop 1597 tcp orbplus-iiop [Robert_A_Kukura] [Robert_A_Kukura]
orbplus-iiop 1597 udp orbplus-iiop [Robert_A_Kukura] [Robert_A_Kukura]
picknfs 1598 tcp picknfs [John_Lombardo] [John_Lombardo]
picknfs 1598 udp picknfs [John_Lombardo] [John_Lombardo]
simbaservices 1599 tcp simbaservices [Betsy_Alexander] [Betsy_Alexander]
simbaservices 1599 udp simbaservices [Betsy_Alexander] [Betsy_Alexander]
issd 1600 tcp issd
issd 1600 udp issd
aas 1601 tcp aas [Bob_Beard] [Bob_Beard]
aas 1601 udp aas [Bob_Beard] [Bob_Beard]
inspect 1602 tcp inspect [Frank_O_Neill] [Frank_O_Neill]
inspect 1602 udp inspect [Frank_O_Neill] [Frank_O_Neill]
picodbc 1603 tcp pickodbc [John_Lombardo] [John_Lombardo]
picodbc 1603 udp pickodbc [John_Lombardo] [John_Lombardo]
icabrowser 1604 tcp icabrowser [Brad_Pedersen] [Brad_Pedersen]
icabrowser 1604 udp icabrowser [Brad_Pedersen] [Brad_Pedersen]
slp 1605 tcp Salutation Manager (Salutation Protocol)
slp 1605 udp Salutation Manager (Salutation Protocol)
slm-api 1606 tcp Salutation Manager (SLM-API) [Tohru_Mori] [Tohru_Mori]
slm-api 1606 udp Salutation Manager (SLM-API) [Tohru_Mori] [Tohru_Mori]
stt 1607 tcp stt [Ryan_Bolz] [Ryan_Bolz]
stt 1607 udp stt [Ryan_Bolz] [Ryan_Bolz]
smart-lm 1608 tcp Smart Corp. License Manager [Connie_Qiu] [Connie_Qiu]
smart-lm 1608 udp Smart Corp. License Manager [Connie_Qiu] [Connie_Qiu]
isysg-lm 1609 tcp isysg-lm [Adam_Curtin] [Adam_Curtin]
isysg-lm 1609 udp isysg-lm [Adam_Curtin] [Adam_Curtin]
taurus-wh 1610 tcp taurus-wh [Jeff_Moffatt] [Jeff_Moffatt]
taurus-wh 1610 udp taurus-wh [Jeff_Moffatt] [Jeff_Moffatt]
ill 1611 tcp Inter Library Loan [Niall_Murphy] [Niall_Murphy]
ill 1611 udp Inter Library Loan [Niall_Murphy] [Niall_Murphy]
netbill-trans 1612 tcp NetBill Transaction Server
netbill-trans 1612 udp NetBill Transaction Server
netbill-keyrep 1613 tcp NetBill Key Repository
netbill-keyrep 1613 udp NetBill Key Repository
netbill-cred 1614 tcp NetBill Credential Server
netbill-cred 1614 udp NetBill Credential Server
netbill-auth 1615 tcp NetBill Authorization Server
netbill-auth 1615 udp NetBill Authorization Server
netbill-prod 1616 tcp NetBill Product Server [Marvin_Sirbu] [Marvin_Sirbu]
netbill-prod 1616 udp NetBill Product Server [Marvin_Sirbu] [Marvin_Sirbu]
nimrod-agent 1617 tcp Nimrod Inter-Agent Communication [Charles_Lynn] [Charles_Lynn]
nimrod-agent 1617 udp Nimrod Inter-Agent Communication [Charles_Lynn] [Charles_Lynn]
skytelnet 1618 tcp skytelnet [Byron_Jones] [Byron_Jones]
skytelnet 1618 udp skytelnet [Byron_Jones] [Byron_Jones]
xs-openstorage 1619 tcp xs-openstorage [XuiS_Software_Ltd] [XuiS_Software_Ltd]
xs-openstorage 1619 udp xs-openstorage [XuiS_Software_Ltd] [XuiS_Software_Ltd]
faxportwinport 1620 tcp faxportwinport [Chris_Wells] [Chris_Wells]
faxportwinport 1620 udp faxportwinport [Chris_Wells] [Chris_Wells]
softdataphone 1621 tcp softdataphone [Dror_Gill] [Dror_Gill]
softdataphone 1621 udp softdataphone [Dror_Gill] [Dror_Gill]
ontime 1622 tcp ontime [Keith_Rhodes] [Keith_Rhodes]
ontime 1622 udp ontime [Keith_Rhodes] [Keith_Rhodes]
jaleosnd 1623 tcp jaleosnd [Christian_Schormann] [Christian_Schormann]
jaleosnd 1623 udp jaleosnd [Christian_Schormann] [Christian_Schormann]
udp-sr-port 1624 tcp udp-sr-port [Herb_Jensen] [Herb_Jensen]
udp-sr-port 1624 udp udp-sr-port [Herb_Jensen] [Herb_Jensen]
svs-omagent 1625 tcp svs-omagent [Alberto_Berlen] [Alberto_Berlen]
svs-omagent 1625 udp svs-omagent [Alberto_Berlen] [Alberto_Berlen]
shockwave 1626 tcp Shockwave [Sarah_Allen] [Sarah_Allen]
shockwave 1626 udp Shockwave [Sarah_Allen] [Sarah_Allen]
t128-gateway 1627 tcp T.128 Gateway [Phil_May] [Phil_May]
t128-gateway 1627 udp T.128 Gateway [Phil_May] [Phil_May]
lontalk-norm 1628 tcp LonTalk normal
lontalk-norm 1628 udp LonTalk normal
lontalk-urgnt 1629 tcp LonTalk urgent [Bob_Dolin] [Bob_Dolin] 2008-04-10
lontalk-urgnt 1629 udp LonTalk urgent [Bob_Dolin] [Bob_Dolin] 2008-04-10
oraclenet8cman 1630 tcp Oracle Net8 Cman [Tong_Ming_Lee] [Tong_Ming_Lee]
oraclenet8cman 1630 udp Oracle Net8 Cman [Tong_Ming_Lee] [Tong_Ming_Lee]
visitview 1631 tcp Visit view [Tom_Whittaker] [Tom_Whittaker]
visitview 1631 udp Visit view [Tom_Whittaker] [Tom_Whittaker]
pammratc 1632 tcp PAMMRATC
pammratc 1632 udp PAMMRATC
pammrpc 1633 tcp PAMMRPC [John_Britton] [John_Britton]
pammrpc 1633 udp PAMMRPC [John_Britton] [John_Britton]
loaprobe 1634 tcp Log On America Probe [James_Tavares] [James_Tavares]
loaprobe 1634 udp Log On America Probe [James_Tavares] [James_Tavares]
edb-server1 1635 tcp EDB Server 1 [Carlos_Portela] [Carlos_Portela]
edb-server1 1635 udp EDB Server 1 [Carlos_Portela] [Carlos_Portela]
isdc 1636 tcp ISP shared public data control
isdc 1636 udp ISP shared public data control
islc 1637 tcp ISP shared local data control
islc 1637 udp ISP shared local data control
ismc 1638 tcp ISP shared management control [Nick_Austin] [Nick_Austin]
ismc 1638 udp ISP shared management control [Nick_Austin] [Nick_Austin]
cert-initiator 1639 tcp cert-initiator

Contact Information

ID Name Organization Contact URI Last Updated
[Adam_Curtin] Adam Curtin mailto:adam.curtin&isysg.com
[Alberto_Berlen] Alberto Berlen mailto:aberlen&vnet.ibm.com
[Anand_Gangadharan] Anand Gangadharan mailto:anand&goa.mainsoft.com
[Betsy_Alexander] Betsy Alexander tel:+1-604-681-4549
[Bob_Beard] Bob Beard mailto:bobb&lachman.com
[Bob_Dolin] Bob Dolin mailto:bdolin&echelon.com 2008-04-10
[Brad_Pedersen] Brad Pedersen mailto:bradp&citrix.com
[Byron_Jones] Byron Jones mailto:byronj&bellsouth.net
[Carlos_Portela] Carlos Portela mailto:cportela&simple-sw.com 2003-02
[Charles_Lynn] Charles Lynn mailto:clynn&bbn.com
[Chris_Wells] Chris Wells mailto:chris_wells&lansource.com
[Christian_Schormann] Christian Schormann mailto:100410.3063&compuserve.com
[Connie_Qiu] Connie Qiu mailto:connie&scdb.com
[Denis_Aull] Denis Aull Red Lion Controls mailto:Engineering&RedLion.net 2014-05-21
[Dror_Gill] Dror Gill mailto:drorgi&vnet.ibm.com
[Frank_O_Neill] Frank O'Neill mailto:frank&morse.ilo.dec.com
[Herb_Jensen] Herb Jensen mailto:HWJensen&nfsrv.avionics.itt.com
[James_Tavares] James Tavares Log On America mailto:krontor&loa.com
[Jeff_Moffatt] Jeff Moffatt mailto:jeff&taurus.com
[John_Britton] John Britton mailto:johnb&peakaudio.com
[John_Lombardo] John Lombardo mailto:johnl&picksys.com
[Keith_McCloghrie] Keith McCloghrie mailto:kzm&cisco.com
[Keith_Rhodes] Keith Rhodes tel:+1-810-559-5955
[Ken_Chapman] Ken Chapman mailto:kchapman&isis.com
[Marvin_Sirbu] Marvin Sirbu mailto:sirbu+&andrew.cmu.edu
[Niall_Murphy] Niall Murphy mailto:niallm&orca.ucd.ie
[Nick_Austin] Nick Austin mailto:ogmion&ogmium.com
[Phil_May] Phil May mailto:pm&datcon.co.uk
[Red_Lion_Controls] Red Lion Controls mailto:Engineering&RedLion.net 2014-05-21
[Rob_Chandhok_2] Rob Chandhok mailto:chandhok&within.com
[Robert_A_Kukura] Robert A. Kukura mailto:kukura&apollo.hp.com
[Ryan_Bolz] Ryan Bolz mailto:ryanbo&microsoft.com
[Sarah_Allen] Sarah Allen mailto:sallen&macromedia.com
[Ted_Power] Ted Power mailto:tedp&hpinpcb.cup.hp.com
[Tohru_Mori] Tohru Mori mailto:tmori&vnet.ibm.com
[Tom_Whittaker] Tom Whittaker mailto:tomw&ssec.wisc.edu
[Tong_Ming_Lee] Tong-Ming Lee mailto:tmlee&us.oracle.com
[Tony_Sawyer] Tony Sawyer mailto:tonys&gemtech.com
[XuiS_Software_Ltd] XuiS Software Ltd. mailto:100322.2376&compuserve.com