Service Name and Transport Protocol Port Number Registry

Last Updated
2014-12-18
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
bl-idm 142 tcp Britton-Lee IDM [Susie_Snitzer] [Susie_Snitzer]
bl-idm 142 udp Britton-Lee IDM [Susie_Snitzer] [Susie_Snitzer]
imap 143 tcp Internet Message Access Protocol [Mark_Crispin_2] [Mark_Crispin_2]
imap 143 udp Internet Message Access Protocol [Mark_Crispin_2] [Mark_Crispin_2]
uma 144 tcp Universal Management Architecture [Jay_Whitney] [Jay_Whitney]
uma 144 udp Universal Management Architecture [Jay_Whitney] [Jay_Whitney]
uaac 145 tcp UAAC Protocol [David_A_Gomberg] [David_A_Gomberg]
uaac 145 udp UAAC Protocol [David_A_Gomberg] [David_A_Gomberg]
iso-tp0 146 tcp ISO-IP0
iso-tp0 146 udp ISO-IP0
iso-ip 147 tcp ISO-IP [Marshall_Rose] [Marshall_Rose]
iso-ip 147 udp ISO-IP [Marshall_Rose] [Marshall_Rose]
jargon 148 tcp Jargon [Bill_Weinman] [Bill_Weinman]
jargon 148 udp Jargon [Bill_Weinman] [Bill_Weinman]
aed-512 149 tcp AED 512 Emulation Service [Albert_G_Broscius] [Albert_G_Broscius]
aed-512 149 udp AED 512 Emulation Service [Albert_G_Broscius] [Albert_G_Broscius]
sql-net 150 tcp SQL-NET [Martin_Picard] [Martin_Picard]
sql-net 150 udp SQL-NET [Martin_Picard] [Martin_Picard]
hems 151 tcp HEMS
hems 151 udp HEMS
bftp 152 tcp Background File Transfer Program [Annette_DeSchon] [Annette_DeSchon]
bftp 152 udp Background File Transfer Program [Annette_DeSchon] [Annette_DeSchon]
sgmp 153 tcp SGMP [Marty_Schoffstahl] [Marty_Schoffstahl]
sgmp 153 udp SGMP [Marty_Schoffstahl] [Marty_Schoffstahl]
netsc-prod 154 tcp NETSC
netsc-prod 154 udp NETSC
netsc-dev 155 tcp NETSC [Sergio_Heker] [Sergio_Heker]
netsc-dev 155 udp NETSC [Sergio_Heker] [Sergio_Heker]
sqlsrv 156 tcp SQL Service [Craig_Rogers] [Craig_Rogers]
sqlsrv 156 udp SQL Service [Craig_Rogers] [Craig_Rogers]
knet-cmp 157 tcp KNET/VM Command/Message Protocol [Gary_S_Malkin] [Gary_S_Malkin]
knet-cmp 157 udp KNET/VM Command/Message Protocol [Gary_S_Malkin] [Gary_S_Malkin]
pcmail-srv 158 tcp PCMail Server [Mark_L_Lambert] [Mark_L_Lambert]
pcmail-srv 158 udp PCMail Server [Mark_L_Lambert] [Mark_L_Lambert]
nss-routing 159 tcp NSS-Routing [Yakov_Rekhter] [Yakov_Rekhter]
nss-routing 159 udp NSS-Routing [Yakov_Rekhter] [Yakov_Rekhter]
sgmp-traps 160 tcp SGMP-TRAPS [Marty_Schoffstahl] [Marty_Schoffstahl]
sgmp-traps 160 udp SGMP-TRAPS [Marty_Schoffstahl] [Marty_Schoffstahl]
snmp 161 tcp SNMP
snmp 161 udp SNMP
snmptrap 162 tcp SNMPTRAP [Marshall_Rose] [Marshall_Rose]
snmptrap 162 udp SNMPTRAP [Marshall_Rose] [Marshall_Rose]
cmip-man 163 tcp CMIP/TCP Manager
cmip-man 163 udp CMIP/TCP Manager
cmip-agent 164 tcp CMIP/TCP Agent [Amatzia_Ben_Artzi] [Amatzia_Ben_Artzi]
cmip-agent 164 udp CMIP/TCP Agent [Amatzia_Ben_Artzi] [Amatzia_Ben_Artzi]
xns-courier 165 tcp Xerox [Susie_Armstrong_2] [Susie_Armstrong_2]
xns-courier 165 udp Xerox [Susie_Armstrong_2] [Susie_Armstrong_2]
s-net 166 tcp Sirius Systems [Brian_Lloyd] [Brian_Lloyd]
s-net 166 udp Sirius Systems [Brian_Lloyd] [Brian_Lloyd]
namp 167 tcp NAMP [Marty_Schoffstahl] [Marty_Schoffstahl]
namp 167 udp NAMP [Marty_Schoffstahl] [Marty_Schoffstahl]
rsvd 168 tcp RSVD [Alan_Sandell] [Alan_Sandell] 2008-05-01
rsvd 168 udp RSVD [Alan_Sandell] [Alan_Sandell] 2008-05-01
send 169 tcp SEND [William_Oldwin] [William_Oldwin] 2013-06-17
send 169 udp SEND [William_Oldwin] [William_Oldwin] 2013-06-17
print-srv 170 tcp Network PostScript [Brian_Reid] [Brian_Reid]
print-srv 170 udp Network PostScript [Brian_Reid] [Brian_Reid]
multiplex 171 tcp Network Innovations Multiplex
multiplex 171 udp Network Innovations Multiplex
cl-1 172 tcp Network Innovations CL/1

IANA assigned this well-formed service name as a replacement for "cl/1".
[Kevin_DeVault] [Kevin_DeVault]
cl/1 172 tcp Network Innovations CL/1 [Kevin_DeVault] [Kevin_DeVault] This entry is an alias to "cl-1". This entry is now historic, not usable for use with many common service discovery mechanisms.
cl-1 172 udp Network Innovations CL/1

IANA assigned this well-formed service name as a replacement for "cl/1".
[Kevin_DeVault] [Kevin_DeVault]
cl/1 172 udp Network Innovations CL/1 [Kevin_DeVault] [Kevin_DeVault] This entry is an alias to "cl-1". This entry is now historic, not usable for use with many common service discovery mechanisms.
xyplex-mux 173 tcp Xyplex [Bob_Stewart] [Bob_Stewart]
xyplex-mux 173 udp Xyplex [Bob_Stewart] [Bob_Stewart]
mailq 174 tcp MAILQ [Rayan_Zachariassen] [Rayan_Zachariassen]
mailq 174 udp MAILQ [Rayan_Zachariassen] [Rayan_Zachariassen]
vmnet 175 tcp VMNET [Christopher_Tengi] [Christopher_Tengi]
vmnet 175 udp VMNET [Christopher_Tengi] [Christopher_Tengi]
genrad-mux 176 tcp GENRAD-MUX [Ron_Thornton] [Ron_Thornton]
genrad-mux 176 udp GENRAD-MUX [Ron_Thornton] [Ron_Thornton]
xdmcp 177 tcp X Display Manager Control Protocol [Robert_W_Scheifler] [Robert_W_Scheifler]
xdmcp 177 udp X Display Manager Control Protocol [Robert_W_Scheifler] [Robert_W_Scheifler]
nextstep 178 tcp NextStep Window Server [Leo_Hourvitz] [Leo_Hourvitz]
nextstep 178 udp NextStep Window Server [Leo_Hourvitz] [Leo_Hourvitz]
bgp 179 tcp Border Gateway Protocol [Kirk_Lougheed] [Kirk_Lougheed]
bgp 179 udp Border Gateway Protocol [Kirk_Lougheed] [Kirk_Lougheed]
bgp 179 sctp BGP [Randall_Stewart] [Randall_Stewart] [RFC4960]
ris 180 tcp Intergraph [Dave_Buehmann] [Dave_Buehmann]
ris 180 udp Intergraph [Dave_Buehmann] [Dave_Buehmann]
unify 181 tcp Unify [Daegis_Inc] [Chris_Anderson] 2012-07-31
unify 181 udp Unify [Daegis_Inc] [Chris_Anderson] 2012-07-31
audit 182 tcp Unisys Audit SITP [Gil_Greenbaum] [Gil_Greenbaum]
audit 182 udp Unisys Audit SITP [Gil_Greenbaum] [Gil_Greenbaum]
ocbinder 183 tcp OCBinder
ocbinder 183 udp OCBinder
ocserver 184 tcp OCServer [Jerrilynn_Okamura] [Jerrilynn_Okamura]
ocserver 184 udp OCServer [Jerrilynn_Okamura] [Jerrilynn_Okamura]
remote-kis 185 tcp Remote-KIS
remote-kis 185 udp Remote-KIS
kis 186 tcp KIS Protocol [Ralph_Droms] [Ralph_Droms]
kis 186 udp KIS Protocol [Ralph_Droms] [Ralph_Droms]
aci 187 tcp Application Communication Interface [Rick_Carlos] [Rick_Carlos]
aci 187 udp Application Communication Interface [Rick_Carlos] [Rick_Carlos]
mumps 188 tcp Plus Five's MUMPS [Hokey_Stenn] [Hokey_Stenn]
mumps 188 udp Plus Five's MUMPS [Hokey_Stenn] [Hokey_Stenn]
qft 189 tcp Queued File Transport [Wayne_Schroeder] [Wayne_Schroeder]
qft 189 udp Queued File Transport [Wayne_Schroeder] [Wayne_Schroeder]
gacp 190 tcp Gateway Access Control Protocol [C_Philip_Wood] [C_Philip_Wood]
gacp 190 udp Gateway Access Control Protocol [C_Philip_Wood] [C_Philip_Wood]

People

ID Name Organization Contact URI Last Updated
[Alan_Sandell] Alan Sandell mailto:alan.sandell&ist.co.uk 2008-05-01
[Albert_G_Broscius] Albert G. Broscius mailto:broscius&dsl.cis.upenn.edu
[Amatzia_Ben_Artzi] Amatzia Ben-Artzi
[Annette_DeSchon] Annette DeSchon mailto:DESCHON&isi.edu
[Bill_Weinman] Bill Weinman mailto:wew&bearnet.com
[Bob_Stewart] Bob Stewart mailto:STEWART&xyplex.com
[Brian_Lloyd] Brian Lloyd mailto:brian&lloyd.com
[Brian_Reid] Brian Reid mailto:reid&decwrl.dec.com
[C_Philip_Wood] C. Philip Wood mailto:cpw&lanl.gov
[Chris_Anderson] Chris Anderson Daegis, Inc. mailto:ianaportmaster&daegis.com 2012-07-31
[Christopher_Tengi] Christopher Tengi mailto:tengi&princeton.edu
[Craig_Rogers] Craig Rogers mailto:Rogers&isi.edu
[Daegis_Inc] Daegis, Inc. mailto:ianaportmaster&daegis.com 2012-07-31
[Dave_Buehmann] Dave Buehmann mailto:ingr!daveb&uunet.uu.net
[David_A_Gomberg] David A. Gomberg mailto:gomberg&gateway.mitre.org
[Gary_S_Malkin] Gary S. Malkin mailto:GMALKIN&xylogics.com
[Gil_Greenbaum] Gil Greenbaum mailto:gcole&nisd.cam.unisys.com
[Hokey_Stenn] Hokey Stenn mailto:hokey&plus5.com
[Jay_Whitney] Jay Whitney mailto:jw&powercenter.com
[Jerrilynn_Okamura] Jerrilynn Okamura
[Kevin_DeVault] Kevin DeVault
[Kirk_Lougheed] Kirk Lougheed mailto:LOUGHEED&mathom.cisco.com
[Leo_Hourvitz] Leo Hourvitz mailto:leo&next.com
[Mark_Crispin_2] Mark Crispin mailto:MRC&cac.washington.edu
[Mark_L_Lambert] Mark L. Lambert mailto:markl&ptt.lcs.mit.edu
[Marshall_Rose] Marshall Rose mailto:mrose&dbc.mtview.ca.us
[Martin_Picard] Martin Picard
[Marty_Schoffstahl] Marty Schoffstahl mailto:schoff&nisc.nyser.net
[Ralph_Droms] Ralph Droms mailto:rdroms&nri.reston.va.us
[Randall_Stewart] Randall Stewart IETF TSVWG mailto:rrs&lakerest.net
[Rayan_Zachariassen] Rayan Zachariassen mailto:rayan&ai.toronto.edu
[Rick_Carlos] Rick Carlos mailto:rick&ticipa.csc.ti.com
[Robert_W_Scheifler] Robert W. Scheifler mailto:RWS&xx.lcs.mit.edu
[Ron_Thornton] Ron Thornton mailto:thornton&qm7501.genrad.com
[Sergio_Heker] Sergio Heker mailto:heker&jvncc.csc.org
[Susie_Armstrong_2] Susie Armstrong mailto:Armstrong.wbst128&xerox.com
[Susie_Snitzer] Susie Snitzer
[Wayne_Schroeder] Wayne Schroeder mailto:schroeder&sds.sdsc.edu
[William_Oldwin] William Oldwin mailto:william&oldwin.name 2013-06-17
[Yakov_Rekhter] Yakov Rekhter mailto:Yakov&ibm.com