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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ipcore | 2215 | tcp | IPCore.co.za GPRS | Administrator | Administrator | 2005-12 | |||||
| ipcore | 2215 | udp | IPCore.co.za GPRS | Administrator | Administrator | 2005-12 | |||||
| vtu-comms | 2216 | tcp | VTU data service | David Barrass | David Barrass | 2006-01 | |||||
| vtu-comms | 2216 | udp | VTU data service | David Barrass | David Barrass | 2006-01 | |||||
| gotodevice | 2217 | tcp | GoToDevice Device Management | John Lisek | John Lisek | 2006-01 | |||||
| gotodevice | 2217 | udp | GoToDevice Device Management | John Lisek | John Lisek | 2006-01 | |||||
| bounzza | 2218 | tcp | Bounzza IRC Proxy | Danko Alexeyev | Danko Alexeyev | 2006-02 | |||||
| bounzza | 2218 | udp | Bounzza IRC Proxy | Danko Alexeyev | Danko Alexeyev | 2006-02 | |||||
| netiq-ncap | 2219 | tcp | NetIQ NCAP Protocol | Roger Huebner | Roger Huebner | 2010-08-25 | |||||
| netiq-ncap | 2219 | udp | NetIQ NCAP Protocol | Roger Huebner | Roger Huebner | 2010-08-25 | |||||
| ethernet-ip-s | 2221 | tcp | EtherNet/IP over TLS | ODVA, Inc. | Brian Batke | 2015-05-28 | |||||
| ethernet-ip-s | 2221 | udp | EtherNet/IP over DTLS | ODVA, Inc. | Brian Batke | 2015-05-28 | |||||
| EtherNet-IP-1 | 2222 | tcp | EtherNet/IP I/O IANA assigned this well-formed service name as a replacement for "EtherNet/IP-1". |
Brian Batke | Brian Batke | New contact added for port 2222 on 2008-02-01 | |||||
| EtherNet/IP-1 | 2222 | tcp | EtherNet/IP I/O | Brian Batke | Brian Batke | New contact added for port 2222 on 2008-02-01 This entry is an alias to "EtherNet-IP-1". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| EtherNet-IP-1 | 2222 | udp | EtherNet/IP I/O IANA assigned this well-formed service name as a replacement for "EtherNet/IP-1". |
Brian Batke | Brian Batke | New contact added for port 2222 on 2008-02-01 | |||||
| EtherNet/IP-1 | 2222 | udp | EtherNet/IP I/O | Brian Batke | Brian Batke | New contact added for port 2222 on 2008-02-01 This entry is an alias to "EtherNet-IP-1". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| wimaxasncp | 2231 | tcp | WiMAX ASN Control Plane Protocol | Prakash Iyer | Prakash Iyer | 2006-06 | |||||
| wimaxasncp | 2231 | udp | WiMAX ASN Control Plane Protocol | Prakash Iyer | Prakash Iyer | 2006-06 | |||||
| optech-port1-lm | 2237 | tcp | Optech Port1 License Manager | Gerard Cannie | Gerard Cannie | ||||||
| optech-port1-lm | 2237 | udp | Optech Port1 License Manager | Gerard Cannie | Gerard Cannie | ||||||
| ivsd | 2241 | tcp | IVS Daemon | Thierry Turletti | Thierry Turletti | ||||||
| ivsd | 2241 | udp | IVS Daemon | Thierry Turletti | Thierry Turletti | ||||||
| dif-port | 2251 | tcp | Distributed Framework Port | Sebastien Lambla | Sebastien Lambla | ||||||
| dif-port | 2251 | udp | Distributed Framework Port | Sebastien Lambla | Sebastien Lambla | ||||||
| comotionmaster | 2261 | tcp | CoMotion Master Server | ||||||||
| comotionmaster | 2261 | udp | CoMotion Master Server | ||||||||
| apx500api-1 | 2264 | tcp | Audio Precision Apx500 API Port 1 | ||||||||
| apx500api-1 | 2264 | udp | Audio Precision Apx500 API Port 1 | ||||||||
| mmcals | 2271 | tcp | Secure Meeting Maker Scheduling | ||||||||
| mmcals | 2271 | udp | Secure Meeting Maker Scheduling | ||||||||
| lnvconsole | 2281 | tcp | LNVCONSOLE | ||||||||
| lnvconsole | 2281 | udp | LNVCONSOLE | ||||||||
| eapsp | 2291 | tcp | EPSON Advanced Printer Share Protocol | SEIKO EPSON | SEIKO EPSON | 2006-06 | |||||
| eapsp | 2291 | udp | EPSON Advanced Printer Share Protocol | SEIKO EPSON | SEIKO EPSON | 2006-06 | |||||
| d2k-datamover1 | 2297 | tcp | D2K DataMover 1 | ||||||||
| d2k-datamover1 | 2297 | udp | D2K DataMover 1 | ||||||||
| cpq-wbem | 2301 | tcp | Compaq HTTP | Scott Shaffer | Scott Shaffer | ||||||
| cpq-wbem | 2301 | udp | Compaq HTTP | Scott Shaffer | Scott Shaffer | ||||||
| sdclient | 2310 | tcp | SD Client | Jeurgen Broesamle | Jeurgen Broesamle | ||||||
| sdclient | 2310 | udp | SD Client | Jeurgen Broesamle | Jeurgen Broesamle | ||||||
| messageservice | 2311 | tcp | Message Service | ||||||||
| messageservice | 2311 | udp | Message Service | ||||||||
| wanscaler | 2312 | tcp | WANScaler Communication Service | Allen Samuels | Allen Samuels | 2006-11 | |||||
| wanscaler | 2312 | udp | WANScaler Communication Service | Allen Samuels | Allen Samuels | 2006-11 | |||||
| iapp | 2313 | tcp | IAPP (Inter Access Point Protocol) | Henri Moelard | Henri Moelard | ||||||
| iapp | 2313 | udp | IAPP (Inter Access Point Protocol) | Henri Moelard | Henri Moelard | ||||||
| cr-websystems | 2314 | tcp | CR WebSystems | Robin Giese | Robin Giese | ||||||
| cr-websystems | 2314 | udp | CR WebSystems | Robin Giese | Robin Giese | ||||||
| precise-sft | 2315 | tcp | Precise Sft. | Michael Landwehr | Michael Landwehr | ||||||
| precise-sft | 2315 | udp | Precise Sft. | Michael Landwehr | Michael Landwehr | ||||||
| sent-lm | 2316 | tcp | SENT License Manager | Pisharath Krishnan | Pisharath Krishnan | ||||||
| sent-lm | 2316 | udp | SENT License Manager | Pisharath Krishnan | Pisharath Krishnan | ||||||
| attachmate-g32 | 2317 | tcp | Attachmate G32 | Bryce Bhatnagar | Bryce Bhatnagar | ||||||
| attachmate-g32 | 2317 | udp | Attachmate G32 | Bryce Bhatnagar | Bryce Bhatnagar | ||||||
| cadencecontrol | 2318 | tcp | Cadence Control | Buck Caldwell | Buck Caldwell | ||||||
| cadencecontrol | 2318 | udp | Cadence Control | Buck Caldwell | Buck Caldwell | ||||||
| infolibria | 2319 | tcp | InfoLibria | Chris Chiotasso | Chris Chiotasso | ||||||
| infolibria | 2319 | udp | InfoLibria | Chris Chiotasso | Chris Chiotasso | ||||||
| rdlap | 2321 | tcp | RDLAP | Robert Wiebe | Robert Wiebe | ||||||
| rdlap | 2321 | udp | RDLAP | Robert Wiebe | Robert Wiebe | ||||||
| agentview | 2331 | tcp | AGENTVIEW | Ram Iyer | Ram Iyer | ||||||
| agentview | 2331 | udp | AGENTVIEW | Ram Iyer | Ram Iyer | ||||||
| xiostatus | 2341 | tcp | XIO Status | Randy Maas | Randy Maas | ||||||
| xiostatus | 2341 | udp | XIO Status | Randy Maas | Randy Maas | ||||||
| psrserver | 2351 | tcp | psrserver | ||||||||
| psrserver | 2351 | udp | psrserver | ||||||||
| tl1 | 2361 | tcp | TL1 | Charles Scott Roberson | Charles Scott Roberson | ||||||
| tl1 | 2361 | udp | TL1 | Charles Scott Roberson | Charles Scott Roberson | ||||||
| rda | 2371 | tcp | Remote Device Access | Hewlett Packard Enterprise | Steve Roscio; Paul Vencel | 2018-11-05 | |||||
| 2371 | udp | Reserved | 2014-04-09 | ||||||||
| compaq-https | 2381 | tcp | Compaq HTTPS | Scott Shaffer | Scott Shaffer | ||||||
| compaq-https | 2381 | udp | Compaq HTTPS | Scott Shaffer | Scott Shaffer | ||||||
| 3com-net-mgmt | 2391 | tcp | 3COM Net Management | Prathibha Nagvar | Prathibha Nagvar | ||||||
| 3com-net-mgmt | 2391 | udp | 3COM Net Management | Prathibha Nagvar | Prathibha Nagvar | ||||||
| ms-olap1 | 2393 | tcp | MS OLAP 1 | ||||||||
| ms-olap1 | 2393 | udp | MS OLAP 1 | ||||||||
| cvspserver | 2401 | tcp | cvspserver | Jim Kingdon | Jim Kingdon | ||||||
| cvspserver | 2401 | udp | cvspserver | Jim Kingdon | Jim Kingdon | ||||||
| iec-104 | 2404 | tcp | IEC 60870-5-104 process control over IP | Walter K. Eichelburg | Walter K. Eichelburg | ||||||
| iec-104 | 2404 | udp | IEC 60870-5-104 process control over IP | Walter K. Eichelburg | Walter K. Eichelburg | ||||||
| 2408 | udp | Reserved | 2012-03-09 | This entry is being removed on 2012-03-09. | |||||||
| vrts-registry | 2410 | tcp | VRTS Registry | Pranay Varma | Pranay Varma | ||||||
| vrts-registry | 2410 | udp | VRTS Registry | Pranay Varma | Pranay Varma | ||||||
| netwave-ap-mgmt | 2411 | tcp | Netwave AP Management | Johnny Zweig | Johnny Zweig | ||||||
| netwave-ap-mgmt | 2411 | udp | Netwave AP Management | Johnny Zweig | Johnny Zweig | ||||||
| cdn | 2412 | tcp | CDN | Alan Noble | Alan Noble | ||||||
| cdn | 2412 | udp | CDN | Alan Noble | Alan Noble | ||||||
| orion-rmi-reg | 2413 | tcp | orion-rmi-reg | J.S. Greenfield | J.S. Greenfield | ||||||
| orion-rmi-reg | 2413 | udp | orion-rmi-reg | J.S. Greenfield | J.S. Greenfield | ||||||
| beeyond | 2414 | tcp | Beeyond | Bob Deblier | Bob Deblier | ||||||
| beeyond | 2414 | udp | Beeyond | Bob Deblier | Bob Deblier | ||||||
| codima-rtp | 2415 | tcp | Codima Remote Transaction Protocol | Sylvia Ross | Sylvia Ross | ||||||
| codima-rtp | 2415 | udp | Codima Remote Transaction Protocol | Sylvia Ross | Sylvia Ross | ||||||
| rmtserver | 2416 | tcp | RMT Server | Yvon Marineau | Yvon Marineau | ||||||
| rmtserver | 2416 | udp | RMT Server | Yvon Marineau | Yvon Marineau | ||||||
| composit-server | 2417 | tcp | Composit Server | Katsuaki Naoi | Katsuaki Naoi | ||||||
| composit-server | 2417 | udp | Composit Server | Katsuaki Naoi | Katsuaki Naoi | ||||||
| cas | 2418 | tcp | cas | Akiyoshi Ochi | Akiyoshi Ochi | ||||||
| cas | 2418 | udp | cas | Akiyoshi Ochi | Akiyoshi Ochi | ||||||
| attachmate-s2s | 2419 | tcp | Attachmate S2S | Chris Rominski | Chris Rominski | ||||||
| attachmate-s2s | 2419 | udp | Attachmate S2S | Chris Rominski | Chris Rominski |
Contact Information
| Name | Organization | Contact URI | Last Updated |
|---|---|---|---|
| Administrator | admin&ipcore.co.za | 2005-12 | |
| Akiyoshi Ochi | akiyoshi&net.paso.fujitsu.co.jp | ||
| Alan Noble | noble&netmind.com | ||
| Allen Samuels | allen.samuels&citrix.com | 2006-11 | |
| Bob Deblier | bob&virtualunlimited.com | ||
| Brian Batke | eip.jsig&gmail.com | ||
| Brian Batke | Chair of the EtherNet/IP System Architecture SIG | babatke&ra.rockwell.com | 2015-05-28 |
| Bryce Bhatnagar | BRYCEBH&attachmate.com | ||
| Buck Caldwell | buck_c&polygon.com | ||
| Charles Scott Roberson | chip&cerent.com | ||
| Chris Chiotasso | cchiotasso&infolibria.com | ||
| Chris Rominski | ChrisRom&attachmate.com | ||
| Danko Alexeyev | virtuall&virtuall.info | 2007-08-08 | |
| David Barrass | dbarrass&bartecautoid.com | 2006-01 | |
| Gerard Cannie | jcannie&opticaltech.com | ||
| Henri Moelard | moelard&lucent.com | ||
| Hewlett Packard Enterprise | rda-port&hpe.com | 2018-11-02 | |
| J.S. Greenfield | greeny&us.ibm.com | ||
| Jeurgen Broesamle | juergb&bbn.hp.com | ||
| Jim Kingdon | kingdon&harvey.cyclic.com | ||
| John Lisek | jl&gotodevice.com | 2006-01 | |
| Johnny Zweig | zweig&netwave-wireless.com | ||
| Katsuaki Naoi | naoi&pfu.co.jp | ||
| Michael Landwehr | mikel&precisesoft.co.il | ||
| ODVA, Inc. | babatke&ra.rockwell.com | 2015-05-28 | |
| Paul Vencel | Hewlett Packard Enterprise | paul.vencel&hpe.com | 2018-11-02 |
| Pisharath Krishnan | krishnan&axis-inc.com | ||
| Prakash Iyer | prakash.iyer&intel.com | 2009-08-10 | |
| Pranay Varma | pran&veritas.com | ||
| Prathibha Nagvar | |||
| Ram Iyer | ram&aaccorp.com | ||
| Randy Maas | randym&xiotech.com | ||
| Robert Wiebe | crw010&email.mot.com | ||
| Robin Giese | rgiese&peddie.org | ||
| Roger Huebner | iana-ports&netiq.com | 2010-08-25 | |
| SEIKO EPSON | APD.admin&exc.epson.co.jp | 2006-06 | |
| Scott Shaffer | scott.shaffer&hp.com | ||
| Sebastien Lambla | lambla&bouygtel.com | ||
| Steve Roscio | Hewlett Packard Enterprise | Steve.Roscio&hpe.com | 2018-11-02 |
| Sylvia Ross | sross&codimatech.com | ||
| Thierry Turletti | Thierry.Turletti&sophia.inria.fr | ||
| Walter K. Eichelburg | walter.eichelburg&sat-automation.com | ||
| Yvon Marineau | yvon&simware.com |