Service Name and Transport Protocol Port Number Registry
- Last Updated
- 2024-08-29
- 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]
- Available Formats
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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 |
---|---|---|---|---|---|---|---|---|---|---|---|
smtp | 25 | tcp | Simple Mail Transfer | [IESG] | [IETF_Chair] | 2017-06-05 | [RFC5321] | ||||
smtp | 25 | udp | Simple Mail Transfer | [IESG] | [IETF_Chair] | 2017-06-05 | [RFC5321] | ||||
domain | 53 | tcp | Domain Name Server | [Paul_Mockapetris] | [Paul_Mockapetris] | ||||||
domain | 53 | udp | Domain Name Server | [Paul_Mockapetris] | [Paul_Mockapetris] | ||||||
sgmp | 153 | tcp | SGMP | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
sgmp | 153 | udp | SGMP | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
ndsauth | 353 | tcp | NDSAUTH | [Jayakumar_Ramalingam] | [Jayakumar_Ramalingam] | ||||||
ndsauth | 353 | udp | NDSAUTH | [Jayakumar_Ramalingam] | [Jayakumar_Ramalingam] | ||||||
creativeserver | 453 | tcp | CreativeServer | ||||||||
creativeserver | 453 | udp | CreativeServer | ||||||||
courier | 530 | tcp | rpc | ||||||||
courier | 530 | udp | rpc | ||||||||
conference | 531 | tcp | chat | ||||||||
conference | 531 | udp | chat | ||||||||
netnews | 532 | tcp | readnews | ||||||||
netnews | 532 | udp | readnews | ||||||||
netwall | 533 | tcp | for emergency broadcasts | [Andreas_Heidemann] | [Andreas_Heidemann] | ||||||
netwall | 533 | udp | for emergency broadcasts | [Andreas_Heidemann] | [Andreas_Heidemann] | ||||||
windream | 534 | tcp | windream Admin | [Uwe_Honermann] | [Uwe_Honermann] | ||||||
windream | 534 | udp | windream Admin | [Uwe_Honermann] | [Uwe_Honermann] | ||||||
iiop | 535 | tcp | iiop | [Jeff_M_Michaud] | [Jeff_M_Michaud] | ||||||
iiop | 535 | udp | iiop | [Jeff_M_Michaud] | [Jeff_M_Michaud] | ||||||
opalis-rdv | 536 | tcp | opalis-rdv | [Laurent_Domenech] | [Laurent_Domenech] | ||||||
opalis-rdv | 536 | udp | opalis-rdv | [Laurent_Domenech] | [Laurent_Domenech] | ||||||
nmsp | 537 | tcp | Networked Media Streaming Protocol | [Paul_Santinelli_Jr] | [Paul_Santinelli_Jr] | ||||||
nmsp | 537 | udp | Networked Media Streaming Protocol | [Paul_Santinelli_Jr] | [Paul_Santinelli_Jr] | ||||||
gdomap | 538 | tcp | gdomap | [Richard_Frith_Macdon] | [Richard_Frith_Macdon] | ||||||
gdomap | 538 | udp | gdomap | [Richard_Frith_Macdon] | [Richard_Frith_Macdon] | ||||||
apertus-ldp | 539 | tcp | Apertus Technologies Load Determination | ||||||||
apertus-ldp | 539 | udp | Apertus Technologies Load Determination | ||||||||
pirp | 553 | tcp | pirp | [D_J_Bernstein] | [D_J_Bernstein] | ||||||
pirp | 553 | udp | pirp | [D_J_Bernstein] | [D_J_Bernstein] | ||||||
repscmd | 653 | tcp | RepCmd | [Scott_Dale_2] | [Scott_Dale_2] | ||||||
repscmd | 653 | udp | RepCmd | [Scott_Dale_2] | [Scott_Dale_2] | ||||||
rrh | 753 | tcp | |||||||||
rrh | 753 | udp | |||||||||
domain-s | 853 | tcp | DNS query-response protocol run over TLS | [IESG] | [IETF_Chair] | 2015-10-08 | 2022-04-11 | [RFC7858] | |||
domain-s | 853 | udp | DNS query-response protocol run over DTLS or QUIC | [IESG] | [IETF_Chair] | 2015-10-08 | 2022-04-01 | [RFC7858][RFC8094][RFC9250] | |||
twamp-control | 862 | tcp | TWAMP-Control | [IESG] | [IETF_Chair] | [RFC5357] | |||||
rndc | 953 | tcp | BIND9 remote name daemon controller | [Internet_Systems_Consortium_Inc] | [Ray_Bellis] | 2017-06-08 | |||||
953 | udp | Reserved | |||||||||
remote-as | 1053 | tcp | Remote Assistant (RA) | [Roman_Kriis] | [Roman_Kriis] | Unauthorized Use Known on port 1053 | |||||
remote-as | 1053 | udp | Remote Assistant (RA) | [Roman_Kriis] | [Roman_Kriis] | ||||||
ltp-deepspace | 1113 | tcp | Licklider Transmission Protocol | [RFC5326] | |||||||
ltp-deepspace | 1113 | udp | Licklider Transmission Protocol | 2014-02-21 | [RFC5326][RFC7122] | ||||||
c1222-acse | 1153 | tcp | ANSI C12.22 Port | [RFC6142] | |||||||
c1222-acse | 1153 | udp | ANSI C12.22 Port | [RFC6142] | |||||||
q55-pcc | 1253 | tcp | q55-pcc | [Prem_Tirilok] | [Prem_Tirilok] | ||||||
q55-pcc | 1253 | udp | q55-pcc | [Prem_Tirilok] | [Prem_Tirilok] | ||||||
relief | 1353 | tcp | Relief Consulting | [John_Feiler] | [John_Feiler] | ||||||
relief | 1353 | udp | Relief Consulting | [John_Feiler] | [John_Feiler] | ||||||
genie-lm | 1453 | tcp | Genie License Manager | [Paul_Applegate] | [Paul_Applegate] | ||||||
genie-lm | 1453 | udp | Genie License Manager | [Paul_Applegate] | [Paul_Applegate] | ||||||
rap-service | 1530 | tcp | rap-service | ||||||||
rap-service | 1530 | udp | rap-service | ||||||||
rap-listen | 1531 | tcp | rap-listen | [Phil_Servita] | [Phil_Servita] | ||||||
rap-listen | 1531 | udp | rap-listen | [Phil_Servita] | [Phil_Servita] | ||||||
miroconnect | 1532 | tcp | miroconnect | [Michael_Fischer_2] | [Michael_Fischer_2] | ||||||
miroconnect | 1532 | udp | miroconnect | [Michael_Fischer_2] | [Michael_Fischer_2] | ||||||
virtual-places | 1533 | tcp | Virtual Places Software | [Avshalom_Houri] | [Avshalom_Houri] | ||||||
virtual-places | 1533 | udp | Virtual Places Software | [Avshalom_Houri] | [Avshalom_Houri] | ||||||
micromuse-lm | 1534 | tcp | micromuse-lm | [Adam_Kerrison] | [Adam_Kerrison] | ||||||
micromuse-lm | 1534 | udp | micromuse-lm | [Adam_Kerrison] | [Adam_Kerrison] | ||||||
ampr-info | 1535 | tcp | ampr-info | ||||||||
ampr-info | 1535 | udp | ampr-info | ||||||||
ampr-inter | 1536 | tcp | ampr-inter | [Rob_Janssen] | [Rob_Janssen] | ||||||
ampr-inter | 1536 | udp | ampr-inter | [Rob_Janssen] | [Rob_Janssen] | ||||||
sdsc-lm | 1537 | tcp | isi-lm | [Len_Wanger] | [Len_Wanger] | ||||||
sdsc-lm | 1537 | udp | isi-lm | [Len_Wanger] | [Len_Wanger] | ||||||
3ds-lm | 1538 | tcp | 3ds-lm | [Keith_Trummel] | [Keith_Trummel] | ||||||
3ds-lm | 1538 | udp | 3ds-lm | [Keith_Trummel] | [Keith_Trummel] | ||||||
intellistor-lm | 1539 | tcp | Intellistor License Manager | [Ron_Vaughn] | [Ron_Vaughn] | ||||||
intellistor-lm | 1539 | udp | Intellistor License Manager | [Ron_Vaughn] | [Ron_Vaughn] | ||||||
sna-cs | 1553 | tcp | sna-cs | [Tony_Sowter] | [Tony_Sowter] | ||||||
sna-cs | 1553 | udp | sna-cs | [Tony_Sowter] | [Tony_Sowter] | ||||||
alphatech-lm | 1653 | tcp | alphatech-lm | [Joseph_Hauk] | [Joseph_Hauk] | ||||||
alphatech-lm | 1653 | udp | alphatech-lm | [Joseph_Hauk] | [Joseph_Hauk] | ||||||
predatar-comms | 1753 | tcp | Predatar Comms Service | [Silverstring_Ltd] | [Ronnie_De_Giorgio] | 2011-09-15 | |||||
1753 | udp | Reserved | |||||||||
vids-avtp | 1853 | tcp | VIDS-AVTP | [Sascha_Kuemmel] | [Sascha_Kuemmel] | ||||||
vids-avtp | 1853 | udp | VIDS-AVTP | [Sascha_Kuemmel] | [Sascha_Kuemmel] | ||||||
rapidbase | 1953 | tcp | Rapid Base | [Antoni_Wolski] | [Antoni_Wolski] | ||||||
rapidbase | 1953 | udp | Rapid Base | [Antoni_Wolski] | [Antoni_Wolski] | ||||||
lot105-ds-upd | 2053 | tcp | Lot105 DSuper Updates | [Piers_Scannell] | [Piers_Scannell] | ||||||
lot105-ds-upd | 2053 | udp | Lot105 DSuper Updates | [Piers_Scannell] | [Piers_Scannell] | ||||||
ctlptc | 2153 | tcp | Control Protocol | ||||||||
ctlptc | 2153 | udp | Control Protocol | ||||||||
dtv-chan-req | 2253 | tcp | DTV Channel Request | [Richard_Hodges] | [Richard_Hodges] | ||||||
dtv-chan-req | 2253 | udp | DTV Channel Request | [Richard_Hodges] | [Richard_Hodges] | ||||||
pspserver | 2353 | tcp | pspserver | ||||||||
pspserver | 2353 | udp | pspserver | ||||||||
madge-ltd | 2453 | tcp | madge ltd | [Mark_Lyall] | [Mark_Lyall] | ||||||
madge-ltd | 2453 | udp | madge ltd | [Mark_Lyall] | [Mark_Lyall] | ||||||
vrcommerce | 2530 | tcp | VR Commerce | [Yosi_Mass] | [Yosi_Mass] | ||||||
vrcommerce | 2530 | udp | VR Commerce | [Yosi_Mass] | [Yosi_Mass] | ||||||
ito-e-gui | 2531 | tcp | ITO-E GUI | [Michael_Haeuptle] | [Michael_Haeuptle] | ||||||
ito-e-gui | 2531 | udp | ITO-E GUI | [Michael_Haeuptle] | [Michael_Haeuptle] | ||||||
ovtopmd | 2532 | tcp | OVTOPMD | [Eric_Pulsipher] | [Eric_Pulsipher] | ||||||
ovtopmd | 2532 | udp | OVTOPMD | [Eric_Pulsipher] | [Eric_Pulsipher] | ||||||
snifferserver | 2533 | tcp | SnifferServer | [Amy_Weaver_3] | [Amy_Weaver_3] |