Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-10-15
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
bmc-ar 2494 udp BMC AR [Portnoy_Boxman] [Portnoy_Boxman]
fast-rem-serv 2495 tcp Fast Remote Services [Scott_St_Clair] [Scott_St_Clair]
fast-rem-serv 2495 udp Fast Remote Services [Scott_St_Clair] [Scott_St_Clair]
dirgis 2496 tcp DIRGIS [Deutschland_Informat] [Deutschland_Informat]
dirgis 2496 udp DIRGIS [Deutschland_Informat] [Deutschland_Informat]
quaddb 2497 tcp Quad DB [Jeff_Rosenthal] [Jeff_Rosenthal]
quaddb 2497 udp Quad DB [Jeff_Rosenthal] [Jeff_Rosenthal]
odn-castraq 2498 tcp ODN-CasTraq [Richard_Hodges_2] [Richard_Hodges_2]
odn-castraq 2498 udp ODN-CasTraq [Richard_Hodges_2] [Richard_Hodges_2]
unicontrol 2499 tcp UniControl [Ing_Markus_Huemer] [Ing_Markus_Huemer]
unicontrol 2499 udp UniControl [Ing_Markus_Huemer] [Ing_Markus_Huemer]
optiwave-lm 2524 tcp Optiwave License Management [Slawomir_Krzesinski] [Slawomir_Krzesinski]
optiwave-lm 2524 udp Optiwave License Management [Slawomir_Krzesinski] [Slawomir_Krzesinski]
aria 2624 tcp Aria [Logan_Bruns] [Logan_Bruns]
aria 2624 udp Aria [Logan_Bruns] [Logan_Bruns]
qotps 2724 tcp qotps [Piotr_Parlewicz] [Piotr_Parlewicz]
qotps 2724 udp qotps [Piotr_Parlewicz] [Piotr_Parlewicz]
cqg-netlan-1 2824 tcp CQG Net/LAN 1 [Jeff_Wood] [Jeff_Wood]
cqg-netlan-1 2824 udp CQG Net/Lan 1 [Jeff_Wood] [Jeff_Wood]
precise-vip 2924 tcp PRECISE-VIP [Michael_Landwehr] [Michael_Landwehr]
precise-vip 2924 udp PRECISE-VIP [Michael_Landwehr] [Michael_Landwehr]
megaco-h248 2944 tcp Megaco H-248 [Tom_Taylor_2] [Tom_Taylor_2]
megaco-h248 2944 udp Megaco H-248 [Tom_Taylor_2] [Tom_Taylor_2]
megaco-h248 2944 sctp Megaco-H.248 text [Tom_Taylor_3] [Tom_Taylor_3] 2006-09
h248-binary 2945 tcp H248 Binary [Tom_Taylor_2] [Tom_Taylor_2]
h248-binary 2945 udp H248 Binary [Tom_Taylor_2] [Tom_Taylor_2]
h248-binary 2945 sctp Megaco/H.248 binary [Tom_Taylor_3] [Tom_Taylor_3] 2006-09
nds-sso 3024 tcp NDS_SSO

IANA assigned this well-formed service name as a replacement for "nds_sso".
[Mel_Oyler] [Mel_Oyler]
nds_sso 3024 tcp NDS_SSO [Mel_Oyler] [Mel_Oyler] This entry is an alias to "nds-sso". This entry is now historic, not usable for use with many common service discovery mechanisms.
nds-sso 3024 udp NDS_SSO

IANA assigned this well-formed service name as a replacement for "nds_sso".
[Mel_Oyler] [Mel_Oyler]
nds_sso 3024 udp NDS_SSO [Mel_Oyler] [Mel_Oyler] This entry is an alias to "nds-sso". This entry is now historic, not usable for use with many common service discovery mechanisms.
beacon-port 3124 tcp Beacon Port [James_Paul_Duncan] [James_Paul_Duncan]
beacon-port 3124 udp Beacon Port [James_Paul_Duncan] [James_Paul_Duncan]
neon24x7 3213 tcp NEON 24X7 Mission Control [Tony_Lubrano] [Tony_Lubrano]
neon24x7 3213 udp NEON 24X7 Mission Control [Tony_Lubrano] [Tony_Lubrano]
aes-discovery 3224 tcp AES Discovery Port [Ken_Richard] [Ken_Richard]
aes-discovery 3224 udp AES Discovery Port [Ken_Richard] [Ken_Richard]
triomotion 3240 tcp Trio Motion Control Port [Tony_Matthews] [Tony_Matthews] 2002-02
triomotion 3240 udp Trio Motion Control Port [Tony_Matthews] [Tony_Matthews] 2002-02
sysorb 3241 tcp SysOrb Monitoring Server [Jakob_Oestergaard] [Jakob_Oestergaard] 2002-02
sysorb 3241 udp SysOrb Monitoring Server [Jakob_Oestergaard] [Jakob_Oestergaard] 2002-02
sdp-id-port 3242 tcp Session Description ID [Greg_Rose_2] [Greg_Rose_2] 2002-02
sdp-id-port 3242 udp Session Description ID [Greg_Rose_2] [Greg_Rose_2] 2002-02
timelot 3243 tcp Timelot Port [David_Ferguson] [David_Ferguson] 2002-02
timelot 3243 udp Timelot Port [David_Ferguson] [David_Ferguson] 2002-02
onesaf 3244 tcp OneSAF [Gene_McCulley] [Gene_McCulley] 2002-02
onesaf 3244 udp OneSAF [Gene_McCulley] [Gene_McCulley] 2002-02
vieo-fe 3245 tcp VIEO Fabric Executive [James_Cox] [James_Cox] 2002-02
vieo-fe 3245 udp VIEO Fabric Executive [James_Cox] [James_Cox] 2002-02
dvt-system 3246 tcp DVT SYSTEM PORT
dvt-system 3246 udp DVT SYSTEM PORT
dvt-data 3247 tcp DVT DATA LINK [Phillip_Heil] [Phillip_Heil] 2002-02
dvt-data 3247 udp DVT DATA LINK [Phillip_Heil] [Phillip_Heil] 2002-02
procos-lm 3248 tcp PROCOS LM [Torsten_Rendelmann] [Torsten_Rendelmann]
procos-lm 3248 udp PROCOS LM [Torsten_Rendelmann] [Torsten_Rendelmann]
ssp 3249 tcp State Sync Protocol [Stephane_Beaulieu] [Stephane_Beaulieu] 2002-02
ssp 3249 udp State Sync Protocol [Stephane_Beaulieu] [Stephane_Beaulieu] 2002-02
odette-ftp 3305 tcp ODETTE-FTP [David_Nash] [David_Nash] [RFC5024]
odette-ftp 3305 udp ODETTE-FTP [David_Nash] [David_Nash] [RFC5024]
xtrms 3424 tcp xTrade over TLS/SSL [Mats_Nilsson] [Mats_Nilsson] 2002-02
xtrms 3424 udp xTrade over TLS/SSL [Mats_Nilsson] [Mats_Nilsson] 2002-02
ecmport 3524 tcp ECM Server port
ecmport 3524 udp ECM Server port
dist-upgrade 3624 tcp Distributed Upgrade Port [Jason_Schoon] [Jason_Schoon] 2002-10
dist-upgrade 3624 udp Distributed Upgrade Port [Jason_Schoon] [Jason_Schoon] 2002-10
blizwow 3724 tcp World of Warcraft [Domain_Tech] [Domain_Tech] 2005-04
blizwow 3724 udp World of Warcraft [Domain_Tech] [Domain_Tech] 2005-04
acp-policy 3824 tcp Compute Pool Policy [Andy_Belk_2] [Andy_Belk_2] 2005-02
acp-policy 3824 udp Compute Pool Policy [Andy_Belk_2] [Andy_Belk_2] 2005-02
mpl-gprs-port 3924 tcp MPL_GPRS_PORT [David_Barrass_2] [David_Barrass_2] 2003-11
mpl-gprs-port 3924 udp MPL_GPRS_Port [David_Barrass_2] [David_Barrass_2] 2003-11
tnp1-port 4024 tcp TNP1 User Port [Tony_Gibbs] [Tony_Gibbs]
tnp1-port 4024 udp TNP1 User Port [Tony_Gibbs] [Tony_Gibbs]
tigv2 4124 tcp Rohill TetraNode Ip Gateway v2 [Bert_Bouwers] [Bert_Bouwers] 2007-05
tigv2 4124 udp Rohill TetraNode Ip Gateway v2 [Bert_Bouwers] [Bert_Bouwers] 2007-05
4324 Reserved 2015-05-12 This entry is being removed on 2015-05-12.
4424 Unassigned
krb524 4444 tcp KRB524 [B_Clifford_Neuman] [B_Clifford_Neuman] krb524 assigned the port, nv used it without an assignment
krb524 4444 udp KRB524 [B_Clifford_Neuman] [B_Clifford_Neuman] krb524 assigned the port, nv used it without an assignment
nv-video 4444 tcp NV Video default [Ron_Frederick] [Ron_Frederick] krb524 assigned the port, nv used it without an assignment
nv-video 4444 udp NV Video default [Ron_Frederick] [Ron_Frederick] krb524 assigned the port, nv used it without an assignment
4712-4724 Unassigned
scpi-telnet 5024 tcp SCPI-TELNET [IVI_Foundation] [Larry_Ostheimer] 2021-05-06
scpi-telnet 5024 udp SCPI-TELNET [IVI_Foundation] [Larry_Ostheimer] 2021-05-06
hpvirtctrl 5224 tcp HP Virtual Machine Console Operations [John_Williams] [John_Williams] 2007-06
hpvirtctrl 5224 udp HP Virtual Machine Console Operations [John_Williams] [John_Williams] 2007-06
5238-5241 Unassigned
attune 5242 tcp ATTUne API [Bellvedi_Ltd] [Sean_D_Sollé_2] 2022-06-01
5242 udp Reserved
xycstatus 5243 tcp xyClient Status API and rendevous point [Xycare_Ltd] [Luke_Bailey] 2022-06-06
5243 udp Reserved
5244 Unassigned
downtools 5245 tcp DownTools Control Protocol [Jarrod_Sayers] [Jarrod_Sayers] 2009-04-07
downtools-disc 5245 udp DownTools Discovery Protocol [Jarrod_Sayers] [Jarrod_Sayers] 2009-04-07
5246 tcp Reserved
capwap-control 5246 udp CAPWAP Control Protocol [RFC5415]
5247 tcp Reserved
capwap-data 5247 udp CAPWAP Data Protocol [RFC5415]
caacws 5248 tcp CA Access Control Web Service [Gabriel_Kalmar] [Gabriel_Kalmar] 2008-03-06
caacws 5248 udp CA Access Control Web Service [Gabriel_Kalmar] [Gabriel_Kalmar] 2008-03-06
caaclang2 5249 tcp CA AC Lang Service [Gabriel_Kalmar] [Gabriel_Kalmar] 2008-02-19

Contact Information

ID Name Organization Contact URI Last Updated
[Andy_Belk_2] Andy Belk mailto:register1&azulsystems.com 2005-02
[B_Clifford_Neuman] B. Clifford Neuman mailto:bcn&isi.edu 2022-02-18
[Bellvedi_Ltd] Bellvedi Ltd. mailto:iana&bellvedi.com 2022-06-01
[Bert_Bouwers] Bert Bouwers mailto:e.bouwers&rohill.nl 2007-05
[David_Barrass_2] David Barrass mailto:david.barrass&minorplante.com 2003-11
[David_Ferguson] David Ferguson mailto:dferguson&xtralot.com 2002-02
[David_Nash] David Nash mailto:dnash&ford.com
[Deutschland_Informat] Deutschland Informations und Reservierungsgesellschaft mbH mailto:beratung&dirg.de
[Domain_Tech] Domain Tech mailto:Domainnametech&blizzard.com 2005-04
[Gabriel_Kalmar] Gabriel Kalmar mailto:kalga01&ca.com 2008-03-06
[Gene_McCulley] Gene McCulley mailto:mcculley&cuspy.com 2002-02
[Greg_Rose_2] Greg Rose mailto:ggr&qualcomm.com 2002-02
[Ing_Markus_Huemer] Ing. Markus Huemer mailto:markus.huemer&hsd.at
[IVI_Foundation] Interchangeable Virtual Instruments Foundation, Inc. mailto:ivi.contact&ivifoundation.org 2021-05-06
[Jakob_Oestergaard] Jakob Oestergaard mailto:joe&sysorb.com 2002-02
[James_Cox] James Cox mailto:jocox&view.com 2002-02
[James_Paul_Duncan] James Paul Duncan mailto:pduncan&beaconcrm.com
[Jarrod_Sayers] Jarrod Sayers mailto:jarrod&downtools.com.au 2009-04-07
[Jason_Schoon] Jason Schoon mailto:jason.schoon&intermec.com 2002-10
[Jeff_Rosenthal] Jeff Rosenthal mailto:jrosenthal&quad-sys.com
[Jeff_Wood] Jeff Wood mailto:jw&cqg.com
[John_Williams] John Williams mailto:John.H.Williams&hp.com 2007-06
[Ken_Richard] Ken Richard mailto:kenr&aeseducation.com
[Larry_Ostheimer] Larry Ostheimer mailto:larry_ostheimer&keysight.com 2021-05-06
[Logan_Bruns] Logan Bruns mailto:logan&andromedia.com
[Luke_Bailey] Luke Bailey Xycare Ltd mailto:luke.bailey&xycare.co.uk 2022-06-06
[Mats_Nilsson] Mats Nilsson mailto:mats.nilsson&xware.se 2002-02
[Mel_Oyler] Mel Oyler mailto:mel&novell.com
[Michael_Landwehr] Michael Landwehr mailto:mikel&precisesoft.co.il
[Phillip_Heil] Phillip Heil mailto:phil.heil&dvtsensors.com 2002-02
[Piotr_Parlewicz] Piotr Parlewicz mailto:pparlewicz&queryobject.com
[Portnoy_Boxman] Portnoy Boxman mailto:portnoy_boxman&bmc.com 2005-01
[Richard_Hodges_2] Richard Hodges mailto:rh&source.net
[Ron_Frederick] Ron Frederick mailto:frederick&parc.xerox.com
[Scott_St_Clair] Scott St. Clair mailto:stclair&ntc.adaptec.com
[Sean_D_Sollé_2] Sean D. Sollé Bellvedi Ltd. mailto:iana&bellvedi.com 2022-06-01
[Slawomir_Krzesinski] Slawomir Krzesinski mailto:slavek&optiwave.com
[Stephane_Beaulieu] Stephane Beaulieu mailto:stephane&cisco.com 2002-02
[Tom_Taylor_2] Tom Taylor mailto:taylor&nortelnetworks.com
[Tom_Taylor_3] Tom Taylor mailto:taylor&nortel.com 2006-09
[Tony_Gibbs] Tony Gibbs mailto:tony.gibbs&europe.simoco.com
[Tony_Lubrano] Tony Lubrano mailto:tlubrano&neonsys.com
[Tony_Matthews] Tony Matthews mailto:tmatthews&triomotion.com 2002-02
[Torsten_Rendelmann] Torsten Rendelmann mailto:torsten.rendelmann&procos.com
[Xycare_Ltd] Xycare Ltd mailto:luke.bailey&xycare.co.uk 2022-06-06