Service Name and Transport Protocol Port Number Registry
- Last Updated
- 2024-11-27
- 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
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 | NNTP for transit servers (NNSP) | [IESG] | [IETF_Chair] | 2018-07-06 | [RFC3977] | ||||
nnsp | 433 | udp | NNTP for transit servers (NNSP) | [IESG] | [IETF_Chair] | 2018-07-06 | [RFC3977] | ||||
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 | [IESG] | [IETF_Chair] | 2021-10-01 | [RFC9110] | ||||
https | 443 | udp | http protocol over TLS/SSL | [IESG] | [IETF_Chair] | 2021-10-01 | [RFC9110] | ||||
https | 443 | sctp | HTTPS | [Randall_Stewart] | [Randall_Stewart] | 2022-02-07 | [RFC9260] | ||||
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] |