Service Name and Transport Protocol Port Number Registry

Last Updated
2014-07-22
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
nsiiops 261 tcp IIOP Name Service over TLS/SSL [Jeff_Stewart] [Jeff_Stewart]
nsiiops 261 udp IIOP Name Service over TLS/SSL [Jeff_Stewart] [Jeff_Stewart]
arcisdms 262 tcp Arcisdms [Russell_Crook] [Russell_Crook]
arcisdms 262 udp Arcisdms [Russell_Crook] [Russell_Crook]
hdap 263 tcp HDAP [Troy_Gau] [Troy_Gau]
hdap 263 udp HDAP [Troy_Gau] [Troy_Gau]
bgmp 264 tcp BGMP [Dave_Thaler] [Dave_Thaler]
bgmp 264 udp BGMP [Dave_Thaler] [Dave_Thaler]
x-bone-ctl 265 tcp X-Bone CTL [Joe_Touch] [Joe_Touch]
x-bone-ctl 265 udp X-Bone CTL [Joe_Touch] [Joe_Touch]
sst 266 tcp SCSI on ST [Donald_D_Woelz] [Donald_D_Woelz]
sst 266 udp SCSI on ST [Donald_D_Woelz] [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 [Franz_Josef_Leuders] [Franz_Josef_Leuders]
td-replica 268 udp Tobit David Replica [Franz_Josef_Leuders] [Franz_Josef_Leuders]
manet 269 tcp MANET Protocols [RFC5498]
manet 269 udp MANET Protocols [RFC5498]
270 tcp Reserved
gist 270 udp Q-mode encapsulation for GIST messages [RFC5971]
pt-tls 271 tcp IETF Network Endpoint Assessment (NEA) Posture Transport Protocol over TLS (PT-TLS) [IESG] [IETF_Chair] 2012-07-31 [RFC6876]
271 udp Reserved
272-279 Unassigned
http-mgmt 280 tcp http-mgmt [Adrian_Pell] [Adrian_Pell]
http-mgmt 280 udp http-mgmt [Adrian_Pell] [Adrian_Pell]
personal-link 281 tcp Personal Link [Dan_Cummings] [Dan_Cummings]
personal-link 281 udp Personal Link [Dan_Cummings] [Dan_Cummings]
cableport-ax 282 tcp Cable Port A/X [Craig_Langfahl] [Craig_Langfahl]
cableport-ax 282 udp Cable Port A/X [Craig_Langfahl] [Craig_Langfahl]
rescap 283 tcp rescap [Paul_Hoffman] [Paul_Hoffman]
rescap 283 udp rescap [Paul_Hoffman] [Paul_Hoffman]
corerjd 284 tcp corerjd [Chris_Thornhill] [Chris_Thornhill]
corerjd 284 udp corerjd [Chris_Thornhill] [Chris_Thornhill]
285 Unassigned
fxp 286 tcp FXP Communication [James_Darnall] [James_Darnall]
fxp 286 udp FXP Communication [James_Darnall] [James_Darnall]
k-block 287 tcp K-BLOCK [Simon_P_Jackson] [Simon_P_Jackson]
k-block 287 udp K-BLOCK [Simon_P_Jackson] [Simon_P_Jackson]
288-307 Unassigned
novastorbakcup 308 tcp Novastor Backup [Brian_Dickman] [Brian_Dickman]
novastorbakcup 308 udp Novastor Backup [Brian_Dickman] [Brian_Dickman]
entrusttime 309 tcp EntrustTime [Peter_Whittaker] [Peter_Whittaker]
entrusttime 309 udp EntrustTime [Peter_Whittaker] [Peter_Whittaker]
bhmds 310 tcp bhmds [John_Kelly] [John_Kelly]
bhmds 310 udp bhmds [John_Kelly] [John_Kelly]
asip-webadmin 311 tcp AppleShare IP WebAdmin [Ann_Huang] [Ann_Huang]
asip-webadmin 311 udp AppleShare IP WebAdmin [Ann_Huang] [Ann_Huang]
vslmp 312 tcp VSLMP [Gerben_Wierda] [Gerben_Wierda]
vslmp 312 udp VSLMP [Gerben_Wierda] [Gerben_Wierda]
magenta-logic 313 tcp Magenta Logic [Karl_Rousseau] [Karl_Rousseau]
magenta-logic 313 udp Magenta Logic [Karl_Rousseau] [Karl_Rousseau]
opalis-robot 314 tcp Opalis Robot [Laurent_Domenech] [Laurent_Domenech]
opalis-robot 314 udp Opalis Robot [Laurent_Domenech] [Laurent_Domenech]
dpsi 315 tcp DPSI [Tony_Scamurra] [Tony_Scamurra]
dpsi 315 udp DPSI [Tony_Scamurra] [Tony_Scamurra]
decauth 316 tcp decAuth [Michael_Agishtein] [Michael_Agishtein]
decauth 316 udp decAuth [Michael_Agishtein] [Michael_Agishtein]
zannet 317 tcp Zannet [Zan_Oliphant] [Zan_Oliphant]
zannet 317 udp Zannet [Zan_Oliphant] [Zan_Oliphant]
pkix-timestamp 318 tcp PKIX TimeStamp [Robert_Zuccherato] [Robert_Zuccherato]
pkix-timestamp 318 udp PKIX TimeStamp [Robert_Zuccherato] [Robert_Zuccherato]
ptp-event 319 tcp PTP Event [Kang_Lee] [Kang_Lee] 2010-07-27
ptp-event 319 udp PTP Event [Kang_Lee] [Kang_Lee] 2010-07-27
ptp-general 320 tcp PTP General [Kang_Lee] [Kang_Lee] 2010-07-27
ptp-general 320 udp PTP General [Kang_Lee] [Kang_Lee] 2010-07-27
pip 321 tcp PIP [Gordon_Mohr] [Gordon_Mohr]
pip 321 udp PIP [Gordon_Mohr] [Gordon_Mohr]
rtsps 322 tcp RTSPS [Anders_Klemets] [Anders_Klemets]
rtsps 322 udp RTSPS [Anders_Klemets] [Anders_Klemets]
rpki-rtr 323 tcp Resource PKI to Router Protocol [IESG] [IETF_Chair] [RFC6810]
323 udp Reserved
rpki-rtr-tls 324 tcp Resource PKI to Router Protocol over TLS [IESG] [IETF_Chair] [RFC6810]
324 udp Reserved
325-332 Unassigned
texar 333 tcp Texar Security Port [Eugen_Bacic] [Eugen_Bacic]
texar 333 udp Texar Security Port [Eugen_Bacic] [Eugen_Bacic]
334-343 Unassigned
pdap 344 tcp Prospero Data Access Protocol [B_Clifford_Neuman] [B_Clifford_Neuman]
pdap 344 udp Prospero Data Access Protocol [B_Clifford_Neuman] [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 [Dave_Feinleib] [Dave_Feinleib]
mftp 349 udp mftp [Dave_Feinleib] [Dave_Feinleib]
matip-type-a 350 tcp MATIP Type A [Alain_Robert] [Alain_Robert] [RFC2351]
matip-type-a 350 udp MATIP Type A [Alain_Robert] [Alain_Robert] [RFC2351]
matip-type-b 351 tcp MATIP Type B [Alain_Robert] [Alain_Robert] [RFC2351]
matip-type-b 351 udp MATIP Type B [Alain_Robert] [Alain_Robert] [RFC2351]
bhoetty 351 tcp bhoetty [John_Kelly] [John_Kelly] This entry records an unassigned but widespread use (added 5/21/97)
bhoetty 351 udp bhoetty [John_Kelly] [John_Kelly] This entry records an unassigned but widespread use (added 5/21/97)
dtag-ste-sb 352 tcp DTAG [Ruediger_Wald] [Ruediger_Wald] (assigned long ago)
dtag-ste-sb 352 udp DTAG [Ruediger_Wald] [Ruediger_Wald] (assigned long ago)
bhoedap4 352 tcp bhoedap4 [John_Kelly] [John_Kelly] This entry records an unassigned but widespread use (added 5/21/97)
bhoedap4 352 udp bhoedap4 [John_Kelly] [John_Kelly] This entry records an unassigned but widespread use (added 5/21/97)
ndsauth 353 tcp NDSAUTH [Jayakumar_Ramalingam] [Jayakumar_Ramalingam]
ndsauth 353 udp NDSAUTH [Jayakumar_Ramalingam] [Jayakumar_Ramalingam]

People

ID Name Organization Contact URI Last Updated
[Adrian_Pell] Adrian Pell mailto:PELL_ADRIAN/HP-UnitedKingdom_om6@hplb.hpl.hp.com
[Alain_Robert] Alain Robert mailto:arobert&par.sita.int
[Anders_Klemets] Anders Klemets mailto:anderskl&microsoft.com
[Ann_Huang] Ann Huang mailto:annhuang&apple.com
[B_Clifford_Neuman] B. Clifford Neuman mailto:bcn&isi.edu
[Brian_Dickman] Brian Dickman mailto:brian&novastor.com
[Chris_Thornhill] Chris Thornhill mailto:port_contact&cjt.ca
[Craig_Langfahl] Craig Langfahl mailto:Craig_J_Langfahl&ccm.ch.intel.com
[Dan_Cummings] Dan Cummings mailto:doc&cnr.com
[Dave_Feinleib] Dave Feinleib mailto:davefe&microsoft.com
[Dave_Thaler] Dave Thaler mailto:thalerd&eecs.umich.edu
[Donald_D_Woelz] Donald D. Woelz mailto:don&genroco.com
[Eugen_Bacic] Eugen Bacic mailto:ebacic&texar.com
[Franz_Josef_Leuders] Franz-Josef Leuders mailto:development&tobit.com
[Gerben_Wierda] Gerben Wierda mailto:Gerben_Wierda&rna.nl
[Gordon_Mohr] Gordon Mohr mailto:gojomo&usa.net
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[James_Darnall] James Darnall mailto:james_r_darnall&sbcglobal.net
[Jayakumar_Ramalingam] Jayakumar Ramalingam mailto:jayakumar&novell.com
[Jeff_Stewart] Jeff Stewart mailto:jstewart&netscape.com
[Joe_Touch] Joe Touch mailto:touch&isi.edu
[John_Kelly] John Kelly mailto:johnk&bellhow.com
[Kang_Lee] Kang Lee I&M Society TC-9 mailto:kang.lee&nist.gov 2010-07-27
[Karl_Rousseau] Karl Rousseau mailto:kr&netfusion.co.uk
[Laurent_Domenech] Laurent Domenech Opalis mailto:ldomenech&opalis.com
[Michael_Agishtein] Michael Agishtein mailto:misha&unx.dec.com
[Paul_Hoffman] Paul Hoffman mailto:phoffman&imc.org
[Peter_Whittaker] Peter Whittaker mailto:pww&entrust.com
[Robert_Zuccherato] Robert Zuccherato mailto:robert.zuccherato&entrust.com
[Ruediger_Wald] Ruediger Wald mailto:wald&ez-darmstadt.telekom.de
[Russell_Crook] Russell Crook mailto:rmc&sni.ca
[Simon_P_Jackson] Simon P Jackson mailto:jacko&kring.co.uk
[Tony_Scamurra] Tony Scamurra mailto:Tony&desktoppaging.com
[Troy_Gau] Troy Gau mailto:troy&zyxel.com
[Zan_Oliphant] Zan Oliphant mailto:zan&accessone.com