TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov, Wes Eddy, Alexander Zimmermann, Brian Trammell, and Jana Iyengar SCTP: Allison Mankin and Michael Tuexen DCCP: Eddie Kohler and Yoshifumi Nishida
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]. 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. * ************************************************************************
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/DTLS | [IESG] | [IETF_Chair] | 2015-10-08 | 2017-01-23 | [RFC7858][RFC8094] | |||
domain-s | 853 | udp | DNS query-response protocol run over TLS/DTLS | [IESG] | [IETF_Chair] | 2015-10-08 | 2017-01-23 | [RFC7858][RFC8094] | |||
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] |