Service Name and Transport Protocol Port Number Registry
Last Updated
- 2026-10-13
Expert(s)
- TCP/UDP: Joe Touch; Eliot Lear, Kumiko Ono, Wes Eddy, Brian Trammell, and Michael Scharf
- SCTP: Michael Tuexen
- DCCP: Eddie Kohler and Yoshifumi Nishida
Reference
- RFC 6335: Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry
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 basis, as described in RFC 6335.
Port numbers are divided into three ranges, with their uses and assignment procedures specified in Section 8.1.2 of RFC 6335:
- System Ports (0-1023) are assigned using the IETF Review or IESG Approval procedures.
- User Ports (1024-49151) are assigned using the IETF Review, IESG Approval, or Expert Review procedures.
- Dynamic and/or Private Ports (49152-65535) are not assigned.
The registration procedures for service names and port numbers are specified in RFC 6335, while the registration policies referenced above are defined in RFC 8126.
Assigned ports both System and User ports SHOULD NOT be used without or prior to IANA registration.
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.
Registration Forms
- To request a new assignment, please use the Application for Service Names and User Port Numbers form.
- To modify an existing assignment, please use the Modify a Port Number Assignment form.
Available Formats
| Service Name | Port Number | Transport Protocol | Description | Assignee | Contact | Registration Date | Modification Date | Reference | Service Code | Unauthorized Use Reported | Assignment Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ldoms-mgmt | 6482 | udp | Logical Domains Management Interface | Eric Sharakan | Eric Sharakan | 2008-02-14 | |||||
| SunVTS-RMI | 6483 | tcp | SunVTS RMI | Sumit Arora | Sumit Arora | 2007-06 | |||||
| SunVTS-RMI | 6483 | udp | SunVTS RMI | Sumit Arora | Sumit Arora | 2007-06 | |||||
| sun-sr-jms | 6484 | tcp | Service Registry Default JMS Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-jms | 6484 | udp | Service Registry Default JMS Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-iiop | 6485 | tcp | Service Registry Default IIOP Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-iiop | 6485 | udp | Service Registry Default IIOP Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-iiops | 6486 | tcp | Service Registry Default IIOPS Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-iiops | 6486 | udp | Service Registry Default IIOPS Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-iiop-aut | 6487 | tcp | Service Registry Default IIOPAuth Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-iiop-aut | 6487 | udp | Service Registry Default IIOPAuth Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-jmx | 6488 | tcp | Service Registry Default JMX Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-jmx | 6488 | udp | Service Registry Default JMX Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-admin | 6489 | tcp | Service Registry Default Admin Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| sun-sr-admin | 6489 | udp | Service Registry Default Admin Domain | Paul Sterk | Paul Sterk | 2006-03 | |||||
| 6490-6499 | Unassigned | ||||||||||
| boks | 6500 | tcp | BoKS Master | Magnus Nystrom | Magnus Nystrom | ||||||
| boks | 6500 | udp | BoKS Master | Magnus Nystrom | Magnus Nystrom | ||||||
| boks-servc | 6501 | tcp | BoKS Servc IANA assigned this well-formed service name as a replacement for "boks_servc". |
Magnus Nystrom | Magnus Nystrom | Known Unauthorized Use on port 6501 | |||||
| boks_servc | 6501 | tcp | BoKS Servc | Magnus Nystrom | Magnus Nystrom | Known Unauthorized Use on port 6501 | This entry is an alias to "boks-servc". This entry is now historic, not usable for use with many common service discovery mechanisms. | ||||
| boks-servc | 6501 | udp | BoKS Servc IANA assigned this well-formed service name as a replacement for "boks_servc". |
Magnus Nystrom | Magnus Nystrom | ||||||
| boks_servc | 6501 | udp | BoKS Servc | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "boks-servc". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| boks-servm | 6502 | tcp | BoKS Servm IANA assigned this well-formed service name as a replacement for "boks_servm". |
Magnus Nystrom | Magnus Nystrom | ||||||
| boks_servm | 6502 | tcp | BoKS Servm | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "boks-servm". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| boks-servm | 6502 | udp | BoKS Servm IANA assigned this well-formed service name as a replacement for "boks_servm". |
Magnus Nystrom | Magnus Nystrom | ||||||
| boks_servm | 6502 | udp | BoKS Servm | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "boks-servm". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| boks-clntd | 6503 | tcp | BoKS Clntd IANA assigned this well-formed service name as a replacement for "boks_clntd". |
Magnus Nystrom | Magnus Nystrom | ||||||
| boks_clntd | 6503 | tcp | BoKS Clntd | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "boks-clntd". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| boks-clntd | 6503 | udp | BoKS Clntd IANA assigned this well-formed service name as a replacement for "boks_clntd". |
Magnus Nystrom | Magnus Nystrom | ||||||
| boks_clntd | 6503 | udp | BoKS Clntd | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "boks-clntd". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| 6504 | Unassigned | ||||||||||
| badm-priv | 6505 | tcp | BoKS Admin Private Port IANA assigned this well-formed service name as a replacement for "badm_priv". |
Magnus Nystrom | Magnus Nystrom | ||||||
| badm_priv | 6505 | tcp | BoKS Admin Private Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "badm-priv". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| badm-priv | 6505 | udp | BoKS Admin Private Port IANA assigned this well-formed service name as a replacement for "badm_priv". |
Magnus Nystrom | Magnus Nystrom | ||||||
| badm_priv | 6505 | udp | BoKS Admin Private Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "badm-priv". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| badm-pub | 6506 | tcp | BoKS Admin Public Port IANA assigned this well-formed service name as a replacement for "badm_pub". |
Magnus Nystrom | Magnus Nystrom | ||||||
| badm_pub | 6506 | tcp | BoKS Admin Public Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "badm-pub". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| badm-pub | 6506 | udp | BoKS Admin Public Port IANA assigned this well-formed service name as a replacement for "badm_pub". |
Magnus Nystrom | Magnus Nystrom | ||||||
| badm_pub | 6506 | udp | BoKS Admin Public Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "badm-pub". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| bdir-priv | 6507 | tcp | BoKS Dir Server, Private Port IANA assigned this well-formed service name as a replacement for "bdir_priv". |
Magnus Nystrom | Magnus Nystrom | ||||||
| bdir_priv | 6507 | tcp | BoKS Dir Server, Private Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "bdir-priv". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| bdir-priv | 6507 | udp | BoKS Dir Server, Private Port IANA assigned this well-formed service name as a replacement for "bdir_priv". |
Magnus Nystrom | Magnus Nystrom | ||||||
| bdir_priv | 6507 | udp | BoKS Dir Server, Private Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "bdir-priv". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| bdir-pub | 6508 | tcp | BoKS Dir Server, Public Port IANA assigned this well-formed service name as a replacement for "bdir_pub". |
Magnus Nystrom | Magnus Nystrom | ||||||
| bdir_pub | 6508 | tcp | BoKS Dir Server, Public Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "bdir-pub". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| bdir-pub | 6508 | udp | BoKS Dir Server, Public Port IANA assigned this well-formed service name as a replacement for "bdir_pub". |
Magnus Nystrom | Magnus Nystrom | ||||||
| bdir_pub | 6508 | udp | BoKS Dir Server, Public Port | Magnus Nystrom | Magnus Nystrom | This entry is an alias to "bdir-pub". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| mgcs-mfp-port | 6509 | tcp | MGCS-MFP Port | Minoru Ozaki | Minoru Ozaki | ||||||
| mgcs-mfp-port | 6509 | udp | MGCS-MFP Port | Minoru Ozaki | Minoru Ozaki | ||||||
| mcer-port | 6510 | tcp | MCER Port | Portnoy Boxman | Portnoy Boxman | ||||||
| mcer-port | 6510 | udp | MCER Port | Portnoy Boxman | Portnoy Boxman | ||||||
| 6511 | tcp | Reserved | |||||||||
| dccp-udp | 6511 | udp | Datagram Congestion Control Protocol Encapsulation for NAT Traversal | IESG | IETF Chair | RFC 6773 | |||||
| 6512-6512 | Unassigned | ||||||||||
| netconf-tls | 6513 | tcp | NETCONF over TLS | IESG | IETF Chair | 2024-01-24 | RFC 7589; RFC 9918 | ||||
| 6513 | udp | Reserved | |||||||||
| syslog-tls | 6514 | tcp | Syslog over TLS | RFC 5425 | |||||||
| syslog-tls | 6514 | udp | syslog over DTLS | RFC 6012 | |||||||
| syslog-tls | 6514 | dccp | syslog over DTLS | RFC 6012 | |||||||
| elipse-rec | 6515 | tcp | Elipse RPC Protocol | Fl√°vio Englert | Fl√°vio Englert | 2007-09-17 | |||||
| elipse-rec | 6515 | udp | Elipse RPC Protocol | Fl√°vio Englert | Fl√°vio Englert | 2007-09-17 | |||||
| 6516-6542 | Unassigned | ||||||||||
| lds-distrib | 6543 | tcp | lds_distrib | Jack Baker | Jack Baker | 2003-06 | |||||
| lds-distrib | 6543 | udp | lds_distrib | Jack Baker | Jack Baker | 2003-06 | |||||
| lds-dump | 6544 | tcp | LDS Dump Service | Jack Baker | Jack Baker | 2006-02 | |||||
| lds-dump | 6544 | udp | LDS Dump Service | Jack Baker | Jack Baker | 2006-02 | |||||
| 6545-6546 | Unassigned | ||||||||||
| apc-6547 | 6547 | tcp | APC 6547 | American Power Conversion | American Power Conversion | ||||||
| apc-6547 | 6547 | udp | APC 6547 | American Power Conversion | American Power Conversion | ||||||
| apc-6548 | 6548 | tcp | APC 6548 | American Power Conversion | American Power Conversion | ||||||
| apc-6548 | 6548 | udp | APC 6548 | American Power Conversion | American Power Conversion | ||||||
| apc-6549 | 6549 | tcp | APC 6549 | American Power Conversion | American Power Conversion | ||||||
| apc-6549 | 6549 | udp | APC 6549 | American Power Conversion | American Power Conversion | ||||||
| fg-sysupdate | 6550 | tcp | fg-sysupdate | Mark Beyer | Mark Beyer | ||||||
| fg-sysupdate | 6550 | udp | fg-sysupdate | Mark Beyer | Mark Beyer | ||||||
| sum | 6551 | tcp | Software Update Manager | Jan Dirven | Jan Dirven | 2007-12-13 | |||||
| sum | 6551 | udp | Software Update Manager | Jan Dirven | Jan Dirven | 2007-12-13 | |||||
| 6552-6555 | Unassigned | ||||||||||
| checkmk-agent | 6556 | tcp | Checkmk Monitoring Agent | Checkmk GmbH | Alexander Wilms | 2020-07-14 | 2024-08-06 | ||||
| 6556 | udp | Reserved | |||||||||
| 6557 | Unassigned | ||||||||||
| xdsxdm | 6558 | tcp | Brian Tackett | Brian Tackett | possible contact | ||||||
| xdsxdm | 6558 | udp | Brian Tackett | Brian Tackett | possible contact | ||||||
| 6559-6565 | Unassigned | ||||||||||
| sane-port | 6566 | tcp | SANE Control Port | Henning Meier-Geinitz | Henning Meier-Geinitz | 2002-10 | |||||
| sane-port | 6566 | udp | SANE Control Port | Henning Meier-Geinitz | Henning Meier-Geinitz | 2002-10 | |||||
| 6567 | Reserved | 2007-01 | 2011-08-26 | This entry has been removed on 2011-08-26. | |||||||
| canit-store | 6568 | tcp | CanIt Storage Manager IANA assigned this well-formed service name as a replacement for "canit_store". |
Dianne Skoll | Dianne Skoll | 2009-04-22 | 2017-05-25 | ||||
| canit_store | 6568 | tcp | CanIt Storage Manager | Dianne Skoll | Dianne Skoll | 2009-04-22 | 2017-05-25 | This entry is an alias to "canit-store". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||
| rp-reputation | 6568 | udp | Roaring Penguin IP Address Reputation Collection | Dianne Skoll | Dianne Skoll | 2010-02-05 | 2017-05-25 | ||||
| 6569-6578 | Unassigned | ||||||||||
| affiliate | 6579 | tcp | Affiliate | David Catmull | David Catmull | 2006-01 | |||||
| affiliate | 6579 | udp | Affiliate | David Catmull | David Catmull | 2006-01 | |||||
| parsec-master | 6580 | tcp | Parsec Masterserver | Andreas Varga | Andreas Varga | ||||||
| parsec-master | 6580 | udp | Parsec Masterserver | Andreas Varga | Andreas Varga | ||||||
| parsec-peer | 6581 | tcp | Parsec Peer-to-Peer | Andreas Varga | Andreas Varga | ||||||
| parsec-peer | 6581 | udp | Parsec Peer-to-Peer | Andreas Varga | Andreas Varga | ||||||
| parsec-game | 6582 | tcp | Parsec Gameserver | Andreas Varga | Andreas Varga | ||||||
| parsec-game | 6582 | udp | Parsec Gameserver | Andreas Varga | Andreas Varga | ||||||
| joaJewelSuite | 6583 | tcp | JOA Jewel Suite | Bob Rundle | Bob Rundle | 2005-11 | |||||
| joaJewelSuite | 6583 | udp | JOA Jewel Suite | Bob Rundle | Bob Rundle | 2005-11 |
Contact Information
| Name | Organization | Contact URI | Last Updated |
|---|---|---|---|
| Alexander Wilms | Checkmk GmbH | alex.wilms&checkmk.com | 2024-08-06 |
| American Power Conversion | ports&apcc.com | 2002-02 | |
| Andreas Varga | sid&parsec.org | ||
| Bob Rundle | rundle&rundle.com | 2005-11 | |
| Brian Tackett | cym&acrux.net | ||
| Checkmk GmbH | alex.wilms&checkmk.com | 2024-08-06 | |
| David Catmull | uncommon&uncommonplace.com | 2006-01 | |
| Dianne Skoll | dfs&roaringpenguin.com | 2017-05-25 | |
| Eric Sharakan | ldoms-iana-ports&sun.com | 2008-02-14 | |
| Fl√°vio Englert | flavio&elipse.com.br | 2007-09-17 | |
| Henning Meier-Geinitz | henning&meier-geinitz.de | 2002-10 | |
| IESG | iesg&ietf.org | ||
| IETF Chair | IETF | chair&ietf.org | |
| Jack Baker | Jack.Baker&l-3com.com | 2006-02 | |
| Jan Dirven | jan.dirven&agfa.com | 2007-12-13 | |
| Magnus Nystrom | magnus&dynas.se | ||
| Mark Beyer | mbeyer&freegate.com | ||
| Minoru Ozaki | Minoru.Ozaki&rdmg.mgcs.mei.co.jp | ||
| Paul Sterk | paul.sterk&sun.com | 2006-03 | |
| Portnoy Boxman | portnoy_boxman&bmc.com | 2005-01 | |
| Sumit Arora | sumit.arora&sun.com | 2007-06 |