Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-12-20
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
rnmap 3418 udp Remote nmap [Tuomo_Makinen] [Tuomo_Makinen] 2002-02
softaudit 3419 tcp Isogon SoftAudit [Per_Hellberg] [Per_Hellberg] 2002-02
softaudit 3419 udp ISogon SoftAudit [Per_Hellberg] [Per_Hellberg] 2002-02
ifcp-port 3420 tcp iFCP User Port [RFC4172]
ifcp-port 3420 udp iFCP User Port [RFC4172]
bmap 3421 tcp Bull Apprise portmapper [Jeremy_Gilbert] [Jeremy_Gilbert]
bmap 3421 udp Bull Apprise portmapper [Jeremy_Gilbert] [Jeremy_Gilbert]
rusb-sys-port 3422 tcp Remote USB System Port [Steven_Klein] [Steven_Klein] 2002-02
rusb-sys-port 3422 udp Remote USB System Port [Steven_Klein] [Steven_Klein] 2002-02
xtrm 3423 tcp xTrade Reliable Messaging
xtrm 3423 udp xTrade Reliable Messaging
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
agps-port 3425 tcp AGPS Access Port [Kristoffer_Nilsson] [Kristoffer_Nilsson] 2002-02
agps-port 3425 udp AGPS Access Port [Kristoffer_Nilsson] [Kristoffer_Nilsson] 2002-02
arkivio 3426 tcp Arkivio Storage Protocol [Bruce_Greenblatt] [Bruce_Greenblatt] 2002-02
arkivio 3426 udp Arkivio Storage Protocol [Bruce_Greenblatt] [Bruce_Greenblatt] 2002-02
websphere-snmp 3427 tcp WebSphere SNMP [Richard_Mills] [Richard_Mills] 2002-02
websphere-snmp 3427 udp WebSphere SNMP [Richard_Mills] [Richard_Mills] 2002-02
twcss 3428 tcp 2Wire CSS [Wire_IANA_Contact] [Wire_IANA_Contact] 2002-02
twcss 3428 udp 2Wire CSS [Wire_IANA_Contact] [Wire_IANA_Contact] 2002-02
gcsp 3429 tcp GCSP user port [Anirban_Majumder] [Anirban_Majumder] 2002-03
gcsp 3429 udp GCSP user port [Anirban_Majumder] [Anirban_Majumder] 2002-03
ssdispatch 3430 tcp Scott Studios Dispatch [Michael_Settles] [Michael_Settles] 2002-03
ssdispatch 3430 udp Scott Studios Dispatch [Michael_Settles] [Michael_Settles] 2002-03
ndl-als 3431 tcp Active License Server Port [Quentin_Brown] [Quentin_Brown] 2002-03
ndl-als 3431 udp Active License Server Port [Quentin_Brown] [Quentin_Brown] 2002-03
osdcp 3432 tcp Secure Device Protocol [Peter_Fernandez] [Peter_Fernandez] 2002-03
osdcp 3432 udp Secure Device Protocol [Peter_Fernandez] [Peter_Fernandez] 2002-03
opnet-smp 3433 tcp OPNET Service Management Platform [OPNET_Technologies_Inc] [Edward_Macomber] 2002-03 2011-09-21
opnet-smp 3433 udp OPNET Service Management Platform [OPNET_Technologies_Inc] [Edward_Macomber] 2002-03 2011-09-21
opencm 3434 tcp OpenCM Server [Jonathan_S_Shapiro] [Jonathan_S_Shapiro] 2002-03
opencm 3434 udp OpenCM Server [Jonathan_S_Shapiro] [Jonathan_S_Shapiro] 2002-03
pacom 3435 tcp Pacom Security User Port [Steve_Barton] [Steve_Barton] 2002-03
pacom 3435 udp Pacom Security User Port [Steve_Barton] [Steve_Barton] 2002-03
gc-config 3436 tcp GuardControl Exchange Protocol [Andreas_Schwarz] [Andreas_Schwarz] 2002-03
gc-config 3436 udp GuardControl Exchange Protocol [Andreas_Schwarz] [Andreas_Schwarz] 2002-03
autocueds 3437 tcp Autocue Directory Service [Geoff_Back] [Geoff_Back] 2002-03
autocueds 3437 udp Autocue Directory Service [Geoff_Back] [Geoff_Back] 2002-03
spiral-admin 3438 tcp Spiralcraft Admin [Michael_Toth] [Michael_Toth] 2002-03
spiral-admin 3438 udp Spiralcraft Admin [Michael_Toth] [Michael_Toth] 2002-03
hri-port 3439 tcp HRI Interface Port [John_Fayos] [John_Fayos] 2002-03
hri-port 3439 udp HRI Interface Port [John_Fayos] [John_Fayos] 2002-03
ans-console 3440 tcp Net Steward Mgmt Console [John_Richmond] [John_Richmond] 2002-03
ans-console 3440 udp Net Steward Mgmt Console [John_Richmond] [John_Richmond] 2002-03
connect-client 3441 tcp OC Connect Client
connect-client 3441 udp OC Connect Client
connect-server 3442 tcp OC Connect Server [Mike_Velten_2] [Mike_Velten_2] 2002-03
connect-server 3442 udp OC Connect Server [Mike_Velten_2] [Mike_Velten_2] 2002-03
ov-nnm-websrv 3443 tcp OpenView Network Node Manager WEB Server [Anthony_Walker] [Anthony_Walker] 2002-03
ov-nnm-websrv 3443 udp OpenView Network Node Manager WEB Server [Anthony_Walker] [Anthony_Walker] 2002-03
denali-server 3444 tcp Denali Server [Joe_Devlin] [Joe_Devlin] 2002-03
denali-server 3444 udp Denali Server [Joe_Devlin] [Joe_Devlin] 2002-03
monp 3445 tcp Media Object Network Protocol [Aethercloud] [Ron_Herardian] 2002-03 2019-11-11
monp 3445 udp Media Object Network Protocol [Aethercloud] [Ron_Herardian] 2002-03 2019-11-11
3comfaxrpc 3446 tcp 3Com FAX RPC port [Christopher_Wells_2] [Christopher_Wells_2] 2002-04
3comfaxrpc 3446 udp 3Com FAX RPC port [Christopher_Wells_2] [Christopher_Wells_2] 2002-04
directnet 3447 tcp DirectNet IM System [Gregory_Richards] [Gregory_Richards] 2002-04
directnet 3447 udp DirectNet IM System [Gregory_Richards] [Gregory_Richards] 2002-04
dnc-port 3448 tcp Discovery and Net Config [Chi_Chen] [Chi_Chen] 2002-04
dnc-port 3448 udp Discovery and Net Config [Chi_Chen] [Chi_Chen] 2002-04
hotu-chat 3449 tcp HotU Chat [Tim_Burgess] [Tim_Burgess] 2002-04
hotu-chat 3449 udp HotU Chat [Tim_Burgess] [Tim_Burgess] 2002-04
castorproxy 3450 tcp CAStorProxy [Raymond_J_Young] [Raymond_J_Young] 2002-04
castorproxy 3450 udp CAStorProxy [Raymond_J_Young] [Raymond_J_Young] 2002-04
asam 3451 tcp ASAM Services [Mike_Gossett] [Mike_Gossett] 2002-04
asam 3451 udp ASAM Services [Mike_Gossett] [Mike_Gossett] 2002-04
sabp-signal 3452 tcp SABP-Signalling Protocol [Brendan_McWilliams] [Brendan_McWilliams] 2002-04
sabp-signal 3452 udp SABP-Signalling Protocol [Brendan_McWilliams] [Brendan_McWilliams] 2002-04
pscupd 3453 tcp PSC Update [Datalogic_ADC_Inc] [Reid_B_Ligon] 2001-11-10 2014-07-31
pscupd 3453 udp PSC Update [Datalogic_ADC_Inc] [Reid_B_Ligon] 2001-11-10 2014-07-31
mira 3454 tcp Apple Remote Access Protocol [Mike_Alexander] [Mike_Alexander]
mira 3454 udp Apple Remote Access Protocol [Mike_Alexander] [Mike_Alexander]
prsvp 3455 tcp RSVP Port [Bob_Braden] [Bob_Braden]
prsvp 3455 udp RSVP Port [Bob_Braden] [Bob_Braden]
vat 3456 tcp VAT default data [Van_Jacobson] [Van_Jacobson]
vat 3456 udp VAT default data [Van_Jacobson] [Van_Jacobson]
vat-control 3457 tcp VAT default control [Van_Jacobson] [Van_Jacobson]
vat-control 3457 udp VAT default control [Van_Jacobson] [Van_Jacobson]
d3winosfi 3458 tcp D3WinOSFI [Brad_Hamilton] [Brad_Hamilton]
d3winosfi 3458 udp D3WinOSFI [Brad_Hamilton] [Brad_Hamilton]
integral 3459 tcp TIP Integral [Integral_Software] [Olivier_Mascia] 2023-11-07
integral 3459 udp TIP Integral [Integral_Software] [Olivier_Mascia] 2023-11-07
edm-manager 3460 tcp EDM Manger
edm-manager 3460 udp EDM Manger
edm-stager 3461 tcp EDM Stager
edm-stager 3461 udp EDM Stager
edm-std-notify 3462 tcp EDM STD Notify
edm-std-notify 3462 udp EDM STD Notify
edm-adm-notify 3463 tcp EDM ADM Notify
edm-adm-notify 3463 udp EDM ADM Notify
edm-mgr-sync 3464 tcp EDM MGR Sync
edm-mgr-sync 3464 udp EDM MGR Sync
edm-mgr-cntrl 3465 tcp EDM MGR Cntrl [Tom_Hennessy] [Tom_Hennessy]
edm-mgr-cntrl 3465 udp EDM MGR Cntrl [Tom_Hennessy] [Tom_Hennessy]
workflow 3466 tcp WORKFLOW [Robert_Hufsky] [Robert_Hufsky]
workflow 3466 udp WORKFLOW [Robert_Hufsky] [Robert_Hufsky]
rcst 3467 tcp RCST [Kit_Sturgeon] [Kit_Sturgeon]
rcst 3467 udp RCST [Kit_Sturgeon] [Kit_Sturgeon]
ttcmremotectrl 3468 tcp TTCM Remote Controll [Yossi_Cohen_Shahar] [Yossi_Cohen_Shahar]
ttcmremotectrl 3468 udp TTCM Remote Controll [Yossi_Cohen_Shahar] [Yossi_Cohen_Shahar]

Contact Information

ID Name Organization Contact URI Last Updated
[Aethercloud] Aethercloud mailto:rherardi&aethercloud.net 2019-11-11
[Andreas_Schwarz] Andreas Schwarz mailto:andi&trancefield.de 2002-03
[Anirban_Majumder] Anirban Majumder mailto:majumderanirban&lycos.com 2002-03
[Anthony_Walker] Anthony Walker mailto:anthony_walker&hp.com 2002-03
[Bob_Braden] Bob Braden mailto:Braden&isi.edu
[Brad_Hamilton] Brad Hamilton mailto:bh&picksys.com
[Brendan_McWilliams] Brendan McWilliams mailto:brendan.mcwilliams&vf.vodafone.co.uk 2002-04
[Bruce_Greenblatt] Bruce Greenblatt mailto:bruce&arkivio.com 2002-02
[Chi_Chen] Chi Chen mailto:chichen&us.ibm.com 2002-04
[Christopher_Wells_2] Christopher Wells mailto:christopher_wells&3com.com 2002-04
[Datalogic_ADC_Inc] Datalogic ADC, Inc mailto:ReceptionBLQ&datalogic.com 2014-07-31
[Edward_Macomber] Edward Macomber OPNET Technologies Inc mailto:tmacomber&opnet.com 2011-09-21
[Geoff_Back] Geoff Back mailto:geoff&autocue.co.uk 2002-03
[Gregory_Richards] Gregory Richards mailto:Richards&codu.org 2002-04
[Integral_Software] Integral Software mailto:om&integral.software 2023-11-07
[Jeremy_Gilbert] Jeremy Gilbert mailto:J.Gilbert&ma30.bull.com
[Joe_Devlin] Joe Devlin mailto:Joe.Devlin&rocketsoftware.com 2002-03
[John_Fayos] John Fayos mailto:john.fayos&criticallink.com 2002-03
[John_Richmond] John Richmond mailto:developers&securitydesigners.com 2002-03
[Jonathan_S_Shapiro] Jonathan S. Shapiro mailto:registrar&eros-os.org 2002-03
[Kit_Sturgeon] Kit Sturgeon mailto:Kit&remotecontrolsextoys.com
[Kristoffer_Nilsson] Kristoffer Nilsson mailto:kristoffer.nilsson&hutchison3g.com 2002-02
[Mats_Nilsson] Mats Nilsson mailto:mats.nilsson&xware.se 2002-02
[Michael_Settles] Michael Settles mailto:michael.settles&verizon.net 2002-03
[Michael_Toth] Michael Toth mailto:iana&spiralcraft.com 2002-03
[Mike_Alexander] Mike Alexander mailto:mta&um.cc.umich.edu
[Mike_Gossett] Mike Gossett mailto:mike&omnibond.com 2002-04
[Mike_Velten_2] Mike Velten mailto:mike.Velten&liebert.com 2002-03
[Olivier_Mascia] Olivier Mascia mailto:om&integral.software 2023-11-07
[OPNET_Technologies_Inc] OPNET Technologies Inc mailto:tmacomber&opnet.com 2011-09-21
[Per_Hellberg] Per Hellberg mailto:phellberg&isogon.com 2002-02
[Peter_Fernandez] Peter Fernandez mailto:fernandez&omnisec.ch 2002-03
[Quentin_Brown] Quentin Brown mailto:ndldev&ndl.co.uk 2002-03
[Raymond_J_Young] Raymond J. Young mailto:Raymond.Young&ca.com 2002-04
[Reid_B_Ligon] Reid B. Ligon mailto:Reid.Ligon&datalogic.com 2014-07-31
[Richard_Mills] Richard Mills mailto:ramills&us.ibm.com 2002-02
[Robert_Hufsky] Robert Hufsky mailto:rhufsky&csesys.co.at
[Ron_Herardian] Ron Herardian mailto:rherardi&aethercloud.net 2019-11-11
[Steve_Barton] Steve Barton mailto:steveb&pacom.com 2002-03
[Steven_Klein] Steven Klein mailto:stevek&ionetworks.com 2002-02
[Tim_Burgess] Tim Burgess mailto:tim&hotu.com 2002-04
[Tom_Hennessy] Tom Hennessy mailto:thenn&novadigm.com
[Tuomo_Makinen] Tuomo Makinen mailto:tmakinen&pp.htv.fi 2002-02
[Van_Jacobson] Van Jacobson mailto:van&ee.lbl.gov
[Wire_IANA_Contact] 2Wire IANA Contact mailto:iana&2wire.com 2002-04
[Yossi_Cohen_Shahar] Yossi Cohen-Shahar mailto:yossi&proxy.co.il