Service Name and Transport Protocol Port Number Registry

Last Updated
2014-10-28
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov and Wes Eddy; 
    DCCP: Eddie Kohler; SCTP: Allison Mankin
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 difference uses of these ranges is described in
[RFC6335]. System Ports are assigned by IETF
process for standards-track protocols, as per [RFC6335].  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.                                                   *
************************************************************************
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Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Known Unauthorized Uses Assignment Notes
genie 402 udp Genie Protocol [Mark_Hankin] [Mark_Hankin]
decap 403 tcp decap
decap 403 udp decap
nced 404 tcp nced
nced 404 udp nced
ncld 405 tcp ncld [Richard_Jones] [Richard_Jones]
ncld 405 udp ncld [Richard_Jones] [Richard_Jones]
imsp 406 tcp Interactive Mail Support Protocol [John_Myers] [John_Myers]
imsp 406 udp Interactive Mail Support Protocol [John_Myers] [John_Myers]
timbuktu 407 tcp Timbuktu [Marc_Epard] [Marc_Epard]
timbuktu 407 udp Timbuktu [Marc_Epard] [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. [B_Clifford_Neuman] [B_Clifford_Neuman]
prm-nm 409 udp Prospero Resource Manager Node Man. [B_Clifford_Neuman] [B_Clifford_Neuman]
decladebug 410 tcp DECLadebug Remote Debug Protocol [Hewlett_Packard] [Hewlett_Packard]
decladebug 410 udp DECLadebug Remote Debug Protocol [Hewlett_Packard] [Hewlett_Packard]
rmt 411 tcp Remote MT Protocol [Peter_Eriksson] [Peter_Eriksson]
rmt 411 udp Remote MT Protocol [Peter_Eriksson] [Peter_Eriksson]
synoptics-trap 412 tcp Trap Convention Port [Illan_Raab] [Illan_Raab]
synoptics-trap 412 udp Trap Convention Port [Illan_Raab] [Illan_Raab]
smsp 413 tcp Storage Management Services Protocol [Murthy_Srinivas] [Murthy_Srinivas]
smsp 413 udp Storage Management Services Protocol [Murthy_Srinivas] [Murthy_Srinivas]
infoseek 414 tcp InfoSeek [Steve_Kirsch] [Steve_Kirsch]
infoseek 414 udp InfoSeek [Steve_Kirsch] [Steve_Kirsch]
bnet 415 tcp BNet [Jim_Mertz] [Jim_Mertz]
bnet 415 udp BNet [Jim_Mertz] [Jim_Mertz]
silverplatter 416 tcp Silverplatter [Peter_Ciuffetti] [Peter_Ciuffetti]
silverplatter 416 udp Silverplatter [Peter_Ciuffetti] [Peter_Ciuffetti]
onmux 417 tcp Onmux [Stephen_Hanna] [Stephen_Hanna]
onmux 417 udp Onmux [Stephen_Hanna] [Stephen_Hanna]
hyper-g 418 tcp Hyper-G [Frank_Kappe] [Frank_Kappe]
hyper-g 418 udp Hyper-G [Frank_Kappe] [Frank_Kappe]
ariel1 419 tcp Ariel 1 [Joel_Karafin] [Joel_Karafin]
ariel1 419 udp Ariel 1 [Joel_Karafin] [Joel_Karafin]
smpte 420 tcp SMPTE [Si_Becker] [Si_Becker]
smpte 420 udp SMPTE [Si_Becker] [Si_Becker]
ariel2 421 tcp Ariel 2
ariel2 421 udp Ariel 2
ariel3 422 tcp Ariel 3 [Joel_Karafin] [Joel_Karafin]
ariel3 422 udp Ariel 3 [Joel_Karafin] [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 [Conny_Larsson] [Conny_Larsson]
opc-job-track 424 udp IBM Operations Planning and Control Track [Conny_Larsson] [Conny_Larsson]
icad-el 425 tcp ICAD [Larry_Stone] [Larry_Stone]
icad-el 425 udp ICAD [Larry_Stone] [Larry_Stone]
smartsdp 426 tcp smartsdp [Marie_Pierre_Belange] [Marie_Pierre_Belange]
smartsdp 426 udp smartsdp [Marie_Pierre_Belange] [Marie_Pierre_Belange]
svrloc 427 tcp Server Location [Veizades] [Veizades]
svrloc 427 udp Server Location [Veizades] [Veizades]
ocs-cmu 428 tcp OCS_CMU

IANA assigned this well-formed service name as a replacement for "ocs_cmu".
ocs_cmu 428 tcp OCS_CMU This entry is an alias to "ocs-cmu". This entry is now historic, not usable for use with many common service discovery mechanisms.
ocs-cmu 428 udp OCS_CMU

IANA assigned this well-formed service name as a replacement for "ocs_cmu".
ocs_cmu 428 udp OCS_CMU This entry is an alias to "ocs-cmu". This entry is now historic, not usable for use with many common service discovery mechanisms.
ocs-amu 429 tcp OCS_AMU

IANA assigned this well-formed service name as a replacement for "ocs_amu".
[Florence_Wyman] [Florence_Wyman]
ocs_amu 429 tcp OCS_AMU [Florence_Wyman] [Florence_Wyman] This entry is an alias to "ocs-amu". This entry is now historic, not usable for use with many common service discovery mechanisms.
ocs-amu 429 udp OCS_AMU

IANA assigned this well-formed service name as a replacement for "ocs_amu".
[Florence_Wyman] [Florence_Wyman]
ocs_amu 429 udp OCS_AMU [Florence_Wyman] [Florence_Wyman] This entry is an alias to "ocs-amu". This entry is now historic, not usable for use with many common service discovery mechanisms.
utmpsd 430 tcp UTMPSD
utmpsd 430 udp UTMPSD
utmpcd 431 tcp UTMPCD
utmpcd 431 udp UTMPCD
iasd 432 tcp IASD [Nir_Baroz] [Nir_Baroz]
iasd 432 udp IASD [Nir_Baroz] [Nir_Baroz]
nnsp 433 tcp NNSP [Rob_Robertson] [Rob_Robertson]
nnsp 433 udp NNSP [Rob_Robertson] [Rob_Robertson]
mobileip-agent 434 tcp MobileIP-Agent
mobileip-agent 434 udp MobileIP-Agent
mobilip-mn 435 tcp MobilIP-MN [Kannan_Alagappan_2] [Kannan_Alagappan_2]
mobilip-mn 435 udp MobilIP-MN [Kannan_Alagappan_2] [Kannan_Alagappan_2]
dna-cml 436 tcp DNA-CML [Dan_Flowers] [Dan_Flowers]
dna-cml 436 udp DNA-CML [Dan_Flowers] [Dan_Flowers]
comscm 437 tcp comscm [Jim_Teague] [Jim_Teague]
comscm 437 udp comscm [Jim_Teague] [Jim_Teague]
dsfgw 438 tcp dsfgw [Andy_McKeen] [Andy_McKeen]
dsfgw 438 udp dsfgw [Andy_McKeen] [Andy_McKeen]
dasp 439 tcp dasp [Thomas_Obermair] [Thomas_Obermair]
dasp 439 udp dasp [Thomas_Obermair] [Thomas_Obermair]
sgcp 440 tcp sgcp [Marshall_Rose] [Marshall_Rose]
sgcp 440 udp sgcp [Marshall_Rose] [Marshall_Rose]
decvms-sysmgt 441 tcp decvms-sysmgt [Lee_Barton] [Lee_Barton]
decvms-sysmgt 441 udp decvms-sysmgt [Lee_Barton] [Lee_Barton]
cvc-hostd 442 tcp cvc_hostd

IANA assigned this well-formed service name as a replacement for "cvc_hostd".
[Bill_Davidson] [Bill_Davidson]
cvc_hostd 442 tcp cvc_hostd [Bill_Davidson] [Bill_Davidson] This entry is an alias to "cvc-hostd". This entry is now historic, not usable for use with many common service discovery mechanisms.
cvc-hostd 442 udp cvc_hostd

IANA assigned this well-formed service name as a replacement for "cvc_hostd".
[Bill_Davidson] [Bill_Davidson]
cvc_hostd 442 udp cvc_hostd [Bill_Davidson] [Bill_Davidson] This entry is an alias to "cvc-hostd". This entry is now historic, not usable for use with many common service discovery mechanisms.
https 443 tcp http protocol over TLS/SSL [Kipp_E_B_Hickman] [Kipp_E_B_Hickman]
https 443 udp http protocol over TLS/SSL [Kipp_E_B_Hickman] [Kipp_E_B_Hickman]
https 443 sctp HTTPS [Randall_Stewart] [Randall_Stewart] [RFC4960]
snpp 444 tcp Simple Network Paging Protocol [RFC1568]
snpp 444 udp Simple Network Paging Protocol [RFC1568]
microsoft-ds 445 tcp Microsoft-DS [Pradeep_Bahl] [Pradeep_Bahl]
microsoft-ds 445 udp Microsoft-DS [Pradeep_Bahl] [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 [Steven_Ritland] [Steven_Ritland]
ddm-dfm 447 udp DDM-Distributed File Management [Steven_Ritland] [Steven_Ritland]
ddm-ssl 448 tcp DDM-Remote DB Access Using Secure Sockets [Steven_Ritland] [Steven_Ritland]
ddm-ssl 448 udp DDM-Remote DB Access Using Secure Sockets [Steven_Ritland] [Steven_Ritland]
as-servermap 449 tcp AS Server Mapper [Barbara_Foss] [Barbara_Foss]

People

ID Name Organization Contact URI Last Updated
[Andy_McKeen] Andy McKeen mailto:mckeen&osf.org
[B_Clifford_Neuman] B. Clifford Neuman mailto:bcn&isi.edu
[Barbara_Foss] Barbara Foss mailto:BGFOSS&rchvmv.vnet.ibm.com
[Bill_Davidson] Bill Davidson mailto:billd&equalizer.cray.com
[Conny_Larsson] Conny Larsson mailto:cocke&vnet.ibm.com
[Dan_Flowers] Dan Flowers mailto:flowers&smaug.lkg.dec.com
[Florence_Wyman] Florence Wyman mailto:wyman&peabody.plk.af.mil
[Frank_Kappe] Frank Kappe mailto:fkappe&iicm.tu-graz.ac.at
[Hewlett_Packard] Hewlett Packard
[Illan_Raab] Illan Raab mailto:iraab&synoptics.com
[Jim_Mertz] Jim Mertz mailto:JMertz+RV09&rvdc.unisys.com
[Jim_Teague] Jim Teague mailto:teague&zso.dec.com
[Joel_Karafin] Joel Karafin mailto:jkarafin&infotrieve.com
[John_Myers] John Myers mailto:jgm+&cmu.edu
[Kannan_Alagappan_2] Kannan Alagappan mailto:kannan&sejour.lkg.dec.com
[Kipp_E_B_Hickman] Kipp E.B. Hickman mailto:kipp&mcom.com
[Larry_Stone] Larry Stone mailto:lcs&icad.com
[Lee_Barton] Lee Barton mailto:barton&star.enet.dec.com
[Marc_Epard] Marc Epard mailto:marc&netopia.com
[Marie_Pierre_Belange] Marie-Pierre Belanger mailto:belanger_marie&emc.com
[Mark_Hankin] Mark Hankin
[Marshall_Rose] Marshall Rose mailto:mrose&dbc.mtview.ca.us
[Murthy_Srinivas] Murthy Srinivas mailto:murthy&novell.com
[Nir_Baroz] Nir Baroz mailto:nbaroz&encore.com
[Peter_Ciuffetti] Peter Ciuffetti mailto:petec&silverplatter.com
[Peter_Eriksson] Peter Eriksson mailto:pen&lysator.liu.se
[Pradeep_Bahl] Pradeep Bahl mailto:pradeepb&microsoft.com
[Randall_Stewart] Randall Stewart IETF TSVWG mailto:rrs&lakerest.net
[Richard_Jones] Richard Jones
[Rob_Robertson] Rob Robertson mailto:rob&gangrene.berkeley.edu
[Si_Becker] Si Becker mailto:71362.22&compuserve.com
[Stephen_Hanna] Stephen Hanna mailto:hanna&world.std.com
[Steve_Kirsch] Steve Kirsch mailto:stk&infoseek.com
[Steven_Ritland] Steven Ritland mailto:srr&us.ibm.com
[Thomas_Obermair] Thomas Obermair mailto:tommy&inlab.m.eunet.de
[Veizades] mailto:veizades&ftp.com