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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| affinity-cntent | tcp | Affinity content sharing | Serif (Europe) Ltd. | Tom Lachecki | 2023-03-30 | Defined TXT keys: Proprietary | |||||
| ai-adp | tcp | AI Agent Discovery Protocol (ADP) | Harry Lian | Harry Lian | 2026-06-12 | draft-pro-adp-agent-discovery-00 | Defined TXT keys: None | ||||
| airdrop | tcp | Airdrop | Apple Inc. | Marc Krochmal | 2012-03-02 | Defined TXT keys: flags, phash, ehash, cname | |||||
| airmate | tcp | Airmate interworking protocol | Myriel Aviation / Airmate | Daniel Mavrakis | 2020-09-21 | Defined TXT keys: proprietary | |||||
| airmate | udp | Airmate interworking protocol | Myriel Aviation / Airmate | Daniel Mavrakis | 2020-09-21 | Defined TXT keys: proprietary | |||||
| airplay | tcp | Protocol for streaming of audio/video content | Apple Inc. | Bob Bradley | 2012-09-19 | Defined TXT keys: am, cn, et, ft, fv, md, pk, pw, sf, tp, vn, vs | |||||
| airplay | udp | Protocol for streaming of audio/video content | Apple Inc. | Bob Bradley | 2012-09-19 | Defined TXT keys: am, cn, et, ft, fv, md, pk, pw, sf, tp, vn, vs | |||||
| airport | AirPort Base Station | Bob Bradley | Bob Bradley | Defined TXT keys: waMA; | |||||||
| airpreview | tcp | Coda AirPreview | Panic Inc. | Cabel Sasser | 2012-07-19 | Defined TXT keys: hasCamera, name, UUID | |||||
| airprojector | AirProjector | Yoshinori Nakayama | Yoshinori Nakayama | Defined TXT keys: mac=<MAC address> ip=<IP address> note=<Location> use=<Status> mainprog=<Main program version> bootprog=<Boot program version> | |||||||
| airsharing | Air Sharing | Erik Rogers; Dave Howell | Erik Rogers; Dave Howell | Defined TXT keys: None | |||||||
| airsharingpro | Air Sharing Pro | Erik Rogers; Dave Howell | Erik Rogers; Dave Howell | Defined TXT keys: None | |||||||
| alazartech-atn | tcp | Alazar Technologies ATN Communication Protocol | Alazar Technologies | Romain Deterre | 2016-05-26 | Defined TXT keys: None | |||||
| aloe-gwp | tcp | Aloe Gateway Protocol | Layered Logic, Inc. | Brooks Bell | 2012-01-04 | Defined TXT keys: Version | |||||
| aloe-pp | tcp | Aloe Pairing Protocol | Layered Logic, Inc. | Brooks Bell | 2012-01-04 | Defined TXT keys: Version, DeviceName, DeviceModel, DeviceSystem, DeviceSystemVersion, AppName, AppVersion | |||||
| alpacadiscovery | udp | ASCOM Alpaca Device Discovery | ASCOM Initiative | Robert B. Denny | 2020-02-24 | Defined TXT keys: None | |||||
| amazon-expiscor | udp | Device discovery for Amazon | Amazon.com Services LLC | Andy Jack | 2024-02-22 | Defined TXT keys: None | |||||
| amba-cam | udp | Ambarella Cameras | Louis Sun | Louis Sun | Defined TXT keys: product=<product model name> description=<string name> version=<firmware version> | ||||||
| amiphd-p2p | P2PTapWar Sample Application from "iPhone SDK Development" Book | Chris Adamson | Chris Adamson | Defined TXT keys: None | |||||||
| ams-htm | Proprietary protocol for Accu-Med HTM | AccuMed Services | Sam Carleton | 2011-10-20 | Defined TXT keys: None | ||||||
| animolmd | Animo License Manager | Phil Barrett | Phil Barrett | Defined TXT keys: None | |||||||
| animobserver | Animo Batch Server | Phil Barrett | Phil Barrett | Defined TXT keys: None | |||||||
| anquetsync | Anquet map synchronization between desktop and handheld devices | Paul Lesurf | Paul Lesurf | Defined TXT keys: Proprietary | |||||||
| antrmai | tcp | ANT Galio web services | ANT Software Limited | Simon Middleton | 2012-12-06 | Defined TXT keys: txtvers, man | |||||
| anyremote | tcp | remote control of Linux PCs from Android and J2ME | Mikhail Fedotov | Mikhail Fedotov | 2014-12-10 | Defined TXT keys: None | |||||
| appelezvous | Appelezvous | Marco Piovanelli | Marco Piovanelli | Defined TXT keys: None | |||||||
| apple-ausend | Apple Audio Units | James McCartney | James McCartney | Defined TXT keys: None | |||||||
| apple-mobdev | tcp | Apple Mobile Device Protocol | Apple | Paul Chinn; Justin Ko | 2011-10-20 | Defined TXT keys: None | |||||
| apple-midi | udp | Apple MIDI | Doug Wyatt | Doug Wyatt | Defined TXT keys: None | ||||||
| applerdbg | Apple Remote Debug Services (OpenGL Profiler) | Dave Springer | Dave Springer | Defined TXT keys: None | |||||||
| appletv | Apple TV | Amandeep Jawa | Amandeep Jawa | Defined TXT keys: txtvers, PrVs, OSsi, MniT | |||||||
| appletv-itunes | Apple TV discovery of iTunes | Amandeep Jawa | Amandeep Jawa | Defined TXT keys: txtvers | |||||||
| appletv-pair | Apple TV Pairing | Amandeep Jawa | Amandeep Jawa | Defined TXT keys: txtvers | |||||||
| aquamon | AquaMon | Defined TXT keys: None | |||||||||
| arcnet | udp | Arcturus Networks Inc. Hardware Services | Arcturus Networks Inc. | Michael Durrant | 2011-10-20 | Defined TXT keys: None | |||||
| arn | tcp | Active Registry Network for distribution of values and streams | Mictron | Michael Wiklund | 2013-10-17 | Defined TXT keys: None | |||||
| aroundsound | AroundSound's information sharing protocol | Winzig LLC | Winzig LLC | 2011-10-20 | Defined TXT keys: Proprietary | ||||||
| asam-cmp | udp | ASAM Capture Module Protocol | ASAM e.V. | Bernd Wenzel | 2021-09-29 | Defined TXT keys: None | |||||
| aseba | tcp | protocol for an event-based architecture for distributed control of mobile robots | Mobsya Association | Stéphane Magnenat | 2016-08-18 | Defined TXT keys: txtvers, type, protovers, ids, pids | |||||
| astnotify | udp | Asterisk Caller-ID Notification Service | Sven Slezak | Sven Slezak | Defined TXT keys: prefix=<country code prefix> (numeric, additionally '+') | ||||||
| astralite | Astralite | Tongji University | Tongji University | Defined TXT keys: None | |||||||
| async | address-o-sync | Markus Brand | Markus Brand | Defined TXT keys: None | |||||||
| atnet | udp | AT protocol over IP | Selectron BVBA | Jan Verschaeve | 2018-03-20 | Defined TXT keys: None | |||||
| atlassianapp | Atlassian Application (JIRA, Confluence, Fisheye, Crucible, Crowd, Bamboo) discovery service | Denise Fernandez | Denise Fernandez | Defined TXT keys: app.url | |||||||
| attero-ad | tcp | Attero Tech Audio Device | Attero Tech LLC | David Vaughn | 2015-09-24 | Defined TXT keys: txtvers, protovers, CtrlType, Model | |||||
| attero-ad | udp | Attero Tech Audio Device | Attero Tech LLC | David Vaughn | 2015-09-24 | Defined TXT keys: txtvers, protovers, CtrlType, Model | |||||
| audirvana-ap | tcp | Audirvana Remote Access Protocol | Audirvana SCS | Damien Plisson | 2015-07-21 | Defined TXT keys: txtvers, protovers | |||||
| autosendimages | tcp | automatic sending Image data protocol | Canon Inc | Kazuo Moritomo | 2017-04-17 | ||||||
| autotargets-ap | tcp | Access Point for AutoTargets system | Automated Target Solutions, Inc. | Nathan Walker | 2015-12-28 | Defined TXT keys: none | |||||
| av | Allen Vanguard Hardware Service | Mike Bush | Mike Bush | Defined TXT keys: Proprietary | |||||||
| av-chat-ring-01 | tcp | TCP SpyChat Stream Message Exchange | Alexios Vasileiadis | Alexios Vasileiadis | 2018-05-03 | Defined TXT keys: There are two TXT record keys: 1st key: "txt-vers" associated with an 'int' entry. 2nd key: "conn-stat" associated with an 'int' entry. | |||||
| avatars | tcp | Libravatar federated avatar hosting service. | libravatar.org | Francois Marier | 2011-10-11 | Defined TXT keys: none | |||||
| avatars-sec | tcp | Libravatar federated avatar hosting service. | libravatar.org | Francois Marier | 2011-10-11 | Defined TXT keys: none | |||||
| axis-nvr | tcp | Axis Network Video Recorders | Axis Communications AB | Erik Linge | 2018-05-24 | Defined TXT keys: None | |||||
| axis-nvr | udp | Axis Network Video Recorders | Axis Communications AB | Erik Linge | 2018-05-24 | Defined TXT keys: None | |||||
| axis-video | Axis Video Cameras | Kristina Sten | Kristina Sten | Defined TXT keys: None | |||||||
| autotunnel | udp | IPSEC VPN tunnel over UDP | Stuart Cheshire | Stuart Cheshire | 2019-05-04 | RFC 6281 | Defined TXT Keys: None | ||||
| b3d-convince | 3M Unitek Digital Orthodontic System | Rajiv Aaron Manglani | Rajiv Aaron Manglani | Defined TXT keys: txtvers=1, protovers=<api version>, guid=<32 hex digits> | |||||||
| babyphone | BabyPhone | Johan Kool | Johan Kool | Defined TXT keys: None | |||||||
| bandhelper-rc | tcp | Remote Control for BandHelper app | Arlo Leach | Arlo Leach | 2017-04-21 | Defined TXT keys: None | |||||
| bandhelper-ss | tcp | Screen sharing for BandHelper app | Arlo Leach | Arlo Leach | 2017-04-21 | Defined TXT keys: None | |||||
| barroomcomedy | tcp | Peer to peer file sharing for a media player application | Fred Zimmerman | Fred Zimmerman | 2013-11-05 | Defined TXT keys: None | |||||
| bcloud-server | tcp | Buddycloud Server Delegation | buddycloud | Simon Tennant | 2014-06-19 | Defined TXT keys: v, host | |||||
| bdsk | BibDesk Sharing | Adam Maxwell | Adam Maxwell | Defined TXT keys: txtvers, authenticate | |||||||
| beacon | Beacon Remote Service | Jeffrey Sadeli | Jeffrey Sadeli | Defined TXT keys: version=<product version>, company=<product company> | |||||||
| beamer | Beamer Data Sharing Protocol | Frank Szczerba | Frank Szczerba | Defined TXT keys: None | |||||||
| beatpack | BeatPack Synchronization Server for BeatMaker | Mathieu Garcia | Mathieu Garcia | Defined TXT keys: None | |||||||
| beatsdirect | tcp | Beats Direct allows for the discovery and control of devices | Beats Electronics LLC. | Eddie Borjas | 2013-06-03 | Defined TXT keys: None | |||||
| beep | Xgrid Technology Preview | David Kramer | David Kramer | Defined TXT keys: None | |||||||
| behnke-cc | tcp | Behnke doorphones / emergency phones | Telefonbau Behnke GmbH | Thomas Kraemer | 2020-05-13 | Defined TXT keys: None | |||||
| behnke-station | tcp | Behnke audio / video intercom systems | Telefonbau Behnke GmbH | Thomas Kraemer | 2021-03-17 | Defined TXT keys: mjpg, jpg, auth, camera, macaddress | |||||
| behnke-video | tcp | Behnke doorphones / video intercoms | Telefonbau Behnke GmbH | Thomas Kraemer | 2021-03-17 | Defined TXT keys: mjpg, jpg, auth, camera, macaddress | |||||
| bender | Bender Communication Protocol | Bender GmbH & Co. KG | Markus Kremer | 2013-10-15 | Defined TXT keys: product version bus id featuremask | ||||||
| beyondidentity | tcp | Beyond Identity Platform Authenticator S | Beyond Identity Inc. | Monty Wiseman | 2024-01-17 | Defined TXT keys: proprietary | |||||
| bfagent | BuildForge Agent | Joe Senner | Joe Senner | Defined TXT keys: None | |||||||
| bhipc | tcp | Becker & Hickl Inter Process Communication | Becker & Hickl GmbH | Enzo Marscheck | 2023-02-15 | Defined TXT keys: None | |||||
| bhipc | udp | Becker & Hickl Inter Process Communication | Becker & Hickl GmbH | Enzo Marscheck | 2023-02-15 | Defined TXT keys: None | |||||
| bidib | tcp | Model Railway Control via netBiDiB | BiDiB & Tools e.V. | Andreas Bergmaier | 2022-12-26 | Defined TXT keys: bidib,node,interface,uid,prod,user - http://bidib.org/transport/bidib_net_e.html | |||||
| bigbangchess | Big Bang Chess | Freeverse Software | Freeverse Software | Defined TXT keys: None | |||||||
| bigbangmancala | Big Bang Mancala | Freeverse Software | Freeverse Software | Defined TXT keys: None | |||||||
| BioSonics | tcp | BioSonics Echosounders | BioSonics, Inc. | Asa Packer | 2023-12-05 | Defined TXT keys: None | |||||
| BioSonics | udp | BioSonics Echosounders | BioSonics, Inc. | Asa Packer | 2023-12-05 | Defined TXT keys: None | |||||
| bitflit | tcp | Data transfer service | Ramesh Gupta | Ramesh Gupta | 2012-02-21 | Defined TXT keys: provider, vendor, user, host, deploy, prototype, schedule | |||||
| bittorrent | BitTorrent Zeroconf Peer Discovery Protocol | Robin Perkins | Robin Perkins | Defined TXT keys: None | |||||||
| blackbook | Little Black Book Information Exchange Protocol | David HM Spector; Paul M Franceus | David HM Spector; Paul M Franceus | Defined TXT keys: product=<application name> description=<application description name> version=<application version/build number> protovers=<version of protocol in use by by this application> | |||||||
| bluevertise | udp | BlueVertise Network Protocol (BNP) | Fabrizio Guglielmino | Fabrizio Guglielmino | Defined TXT keys: role=<master or slave> | ||||||
| boardgame | tcp | Two-player board game play | Tianren Chen | Tianren Chen | 2026-08-05 | https://github.com/chentianren0/MiniXiangqi/blob/main/docs/boardgame-protocol.md | Defined TXT keys: None | ||||
| boardplus | tcp | board plus application transfer protocol | CX5 SOFTWARE | Yohei Yoshihara | 2013-02-04 | Defined TXT keys: None | |||||
| booked-sync | tcp | Booked communication protocol - Sharing And Sync Service | Sören Havemester | Sören Havemester | 2013-02-18 | Defined TXT keys: Edition, Version, Public Shares, Machine ID, Machine Name | |||||
| bookworm | Bookworm Client Discovery | Arne Dirks | Arne Dirks | Defined TXT keys: flavors | |||||||
| bootstrap | tcp | Bootstrap service discovery | Pedro Garcia | Pedro Garcia | 2023-03-20 | Defined TXT keys: "url": if present, indicates a connection url (i.e. wss://example.com/bootstrap, or https://example.com/bootstrap) to be used by the device for bootstrapping; "namespace": identifies the underlying application-level protocol (should be unique for the application protocol, typically a UUID or a URN) | |||||
| bootstrap | udp | Bootstrap service discovery | Pedro Garcia | Pedro Garcia | 2023-03-20 | Defined TXT keys: "url": if present, indicates a connection url (i.e. wss://example.com/bootstrap, or https://example.com/bootstrap) to be used by the device for bootstrapping; "namespace": identifies the underlying application-level protocol (should be unique for the application protocol, typically a UUID or a URN) | |||||
| boundaryscan | udp | Proprietary | Uwe Ziegler | Uwe Ziegler | Defined TXT keys: blocked=<name of the device>, version=<firmware/instrument controller version> | ||||||
| bousg | Bag Of Unusual Strategy Games | Defined TXT keys: None | |||||||||
| boutfitness | tcp | Bout Fitness Synchronization Service | Bout Fitness, LLC | Jesse Curry | 2014-06-16 | Defined TXT keys: None | |||||
| boutfitness | udp | Bout Fitness Synchronization Service | Bout Fitness, LLC | Jesse Curry | 2014-06-16 | Defined TXT keys: None | |||||
| boxraysrvr | tcp | Boxray Devices Host Server | Caprice Productions | Lance Drake | 2012-07-05 | Defined TXT keys: none | |||||
| bq-cromo | tcp | bq Cromo protocol | MUNDO READER SL | Adan Muñoz | 2014-09-05 | Defined TXT keys: None | |||||
| bq-cromo | udp | bq Cromo protocol | MUNDO READER SL | Adan Muñoz | 2014-09-05 | Defined TXT keys: None | |||||
| breas | tcp | Breas | Breas Medical AB | Jonas Sjostedt | 2015-09-09 | Defined TXT keys: None | |||||
| breas | udp | Breas | Breas Medical AB | Jonas Sjostedt | 2015-09-09 | Defined TXT keys: None |
Contact Information
| Name | Organization | Contact URI | Last Updated |
|---|---|---|---|
| AccuMed Services | scarleton&accu-med.com | 2011-10-20 | |
| Adam Maxwell | amaxwell&mac.com | ||
| Adan Muñoz | MUNDO READER SL | adan.munoz&bq.com | 2014-09-05 |
| Alazar Technologies | support&alazartech.com | 2016-05-26 | |
| Alexios Vasileiadis | alexvas100&gmail.com | 2018-05-03 | |
| Amandeep Jawa | daap&apple.com | ||
| Andreas Bergmaier | andreas.bergmaier&bidib.org | 2022-01-04 | |
| Andy Jack | Amazon.com Services LLC | jackaj&amazon.co.uk | 2024-02-22 |
| ANT Software Limited | simon.middleton&antplc.com | 2012-12-06 | |
| Apple | justin.ko&apple.com | 2011-10-20 | |
| Apple Inc. | marc&apple.com | 2012-03-02 | |
| Apple Inc. | bradley&apple.com | 2012-09-19 | |
| Arcturus Networks Inc. | mdurrant&arcturusnetworks.com | 2011-10-20 | |
| Winzig LLC | aroundsound&winzig.com | 2011-10-20 | |
| Arlo Leach | arlo&arlomedia.com | 2017-04-21 | |
| Arne Dirks | ad&bnc.net | ||
| Asa Packer | apacker&biosonicsinc.com | 2023-12-05 | |
| ASAM e.V. | marius.dupuis&asam.net | 2022-07-01 | |
| ASCOM Initiative | rdenny&dc3.com | 2020-02-24 | |
| Amazon.com Services LLC | iana-registrations&amazon.com | 2024-02-22 | |
| Attero Tech LLC | it.dept&atterotech.com | 2015-09-24 | |
| Audirvana SCS | contact&audirvana.com | 2015-07-21 | |
| Automated Target Solutions, Inc. | sales&autotargets.com | 2015-12-28 | |
| Axis Communications AB | erik.linge&axis.com | 2018-05-24 | |
| Beats Electronics LLC. | eddie&beatsbydre.com | 2013-06-03 | |
| Becker & Hickl GmbH | info&becker-hickl.com | 2023-02-15 | |
| Bender GmbH & Co. KG | rnd&bender-de.com | 2013-10-15 | |
| Bernd Wenzel | ASAM e.V. | bernd.wenzel&asam.net | 2022-07-01 |
| Beyond Identity Inc. | iana&beyondidentity.com | 2024-01-17 | |
| BiDiB & Tools e.V. | info&bidib.org | 2022-12-26 | |
| BioSonics, Inc. | engineering&biosonicsinc.com | 2023-12-05 | |
| Bob Bradley | bradley&apple.com | ||
| Bob Bradley | Apple Inc. | bradley&apple.com | 2012-09-19 |
| Bout Fitness, LLC | development&boutfitness.com | 2014-06-16 | |
| Breas Medical AB | jonas.sjostedt&breas.com | ||
| Brooks Bell | Layered Logic, Inc. | brooks&layeredlogic.com | 2012-01-04 |
| buddycloud | simon&buddycloud.com | 2013-05-20 | |
| Cabel Sasser | Panic Inc. | cabel&panic.com | 2012-07-19 |
| Canon Inc | fujii.ken-ichi149&canon.co.jp | 2017-04-17 | |
| Caprice Productions | ldrake&caprice.com | 2012-07-05 | |
| Chris Adamson | invalidname&gmail.com | ||
| CX5 SOFTWARE | contact&cx5software.com | 2013-02-04 | |
| Damien Plisson | Audirvana SCS | damien78&audirvana.com | 2015-07-21 |
| Daniel Mavrakis | mavrakis.daniel&myriel.lu | 2020-09-21 | |
| Dave Howell | dave&avatron.com | ||
| Dave Springer | daves&apple.com | ||
| David HM Spector | spector&zeitgeist.com | ||
| David Kramer | dkramer&apple.com | ||
| David Vaughn | dvaughn&atterotech.com | 2015-09-24 | |
| Denise Fernandez | dcbfernandez&gmail.com | ||
| Doug Wyatt | dwyatt&apple.com | ||
| Eddie Borjas | Beats Electronics LLC. | eddie&beatsbydre.com | 2013-06-03 |
| Enzo Marscheck | Becker & Hickl GmbH | marscheck&becker-hickl.de | 2023-02-15 |
| Erik Linge | contact-iana&axis.com | 2018-05-24 | |
| Erik Rogers | erik&avatron.com | ||
| Fabrizio Guglielmino | guglielmino&infitsrl.com | ||
| Francois Marier | libravatar.org | francois&libravatar.org | 2011-10-11 |
| Frank Szczerba | frank&appmobi.com | ||
| Fred Zimmerman | fredzim1&gmail.com | 2013-11-05 | |
| Freeverse Software | info&freeverse.com | ||
| Harry Lian | harrylian8766&gmail.com | 2026-06-12 | |
| James McCartney | jmccartney&apple.com | ||
| Jan Verschaeve | jv&selectron.be | 2018-03-20 | |
| Jeffrey Sadeli | jeffrey&sadeli.com | ||
| Jesse Curry | Bout Fitness, LLC | jesse&boutfitness.com | 2014-06-16 |
| Joe Senner | support&buildforge.com | ||
| Johan Kool | johan&koolistov.net | ||
| Jonas Sjostedt | jonas.sjostedt&breas.com | ||
| Justin Ko | Apple | justin.ko&apple.com | 2011-10-20 |
| Kazuo Moritomo | Canon Inc | moritomo.kazuo&canon.co.jp | 2017-04-17 |
| Kristina Sten | kristina.sten&axis.com | ||
| Lance Drake | Caprice Productions | bonjour&caprice.com | 2012-07-05 |
| Layered Logic, Inc. | brooks&layeredlogic.com | 2012-01-04 | |
| libravatar.org | francois&libravatar.org | 2011-10-11 | |
| Louis Sun | lysun&ambarella.com | ||
| Marc Krochmal | Apple Inc. | marc&apple.com | 2012-03-02 |
| Marco Piovanelli | support&ovolab.com | ||
| Markus Brand | address-o-sync&slamslash.com | ||
| Markus Kremer | Bender GmbH & Co. KG | markus.kremer&bender-de.com | 2013-10-15 |
| Mathieu Garcia | mathieu.garcia&intua.net | ||
| Michael Durrant | Arcturus Networks Inc. | mdurrant&arcturusnetworks.com | 2011-10-20 |
| Michael Wiklund | Mictron | iana&wiklunden.se | 2013-10-17 |
| Mictron | iana&mictron.se | 2013-10-17 | |
| Mike Bush | mike.bush&allenvanguard.com | ||
| Mikhail Fedotov | anyremote&mail.ru | 2014-12-10 | |
| Mobsya Association | stephane.magnenat&mobsya.org | 2016-08-18 | |
| Monty Wiseman | monty.wiseman&beyondidentity.com | 2024-01-17 | |
| MUNDO READER SL | adan.munoz&bq.com | 2014-09-05 | |
| Myriel Aviation / Airmate | mavrakis.daniel&myriel.lu | 2020-09-21 | |
| Nathan Walker | Automated Target Solutions, Inc. | n.walker&autotargets.com | 2015-12-28 |
| Panic Inc. | cabel&panic.com | 2012-07-19 | |
| Paul Chinn | Apple | pchinn&apple.com | 2011-10-20 |
| Paul Lesurf | paul.lesurf&vpltd.com | ||
| Paul M Franceus | paul&blueiris.us | ||
| Pedro Garcia | pedro.garcia&puzzle-star.com | 2023-03-20 | |
| Phil Barrett | support&cambridgeanimation.com | ||
| Rajiv Aaron Manglani | rajivmanglani&mmm.com | ||
| Ramesh Gupta | ramesh&guptas.net | 2012-02-21 | |
| Robert B. Denny | ASCOM Initiative | rdenny&dc3.com | 2020-02-24 |
| Robin Perkins | robin.perkins&internode.on.net | ||
| Romain Deterre | romain&alazartech.com | 2016-05-26 | |
| Selectron BVBA | jv&selectron.be | 2018-03-20 | |
| Sam Carleton | AccuMed Services | scarleton&accu-med.com | 2011-10-20 |
| Serif (Europe) Ltd. | affinity&serif.com | 2023-03-30 | |
| Simon Middleton | ANT Software Limited | simon.middleton&antplc.com | 2012-12-06 |
| Simon Tennant | buddycloud | simon&buddycloud.com | 2014-06-19 |
| Sören Havemester | reshave&gmail.com | 2013-02-18 | |
| Stéphane Magnenat | stephane.magnenat&mobsya.org | 2016-08-18 | |
| Stuart Cheshire | cheshire&apple.com | 2022-07-11 | |
| Sven Slezak | sunny&mezzo.net | ||
| Telefonbau Behnke GmbH | info&behnke-online.de | 2021-03-17 | |
| Thomas Kraemer | Telefonbau Behnke GmbH | thomas_kraemer&behnke-online.de | 2021-03-17 |
| Tianren Chen | chentianren0&gmail.com | 2026-08-05 | |
| Tom Lachecki | Serif (Europe) Ltd. | tlachecki&serif.com | 2023-03-30 |
| Tongji University | neo.gui&gmail.com | ||
| Uwe Ziegler | Goepel electronic GmbH | u.ziegler&goepel.com | |
| Winzig LLC | aroundsound&winzig.com | 2011-10-20 | |
| Yohei Yoshihara | CX5 SOFTWARE | yohei_yoshihara&cx5software.com | 2013-02-04 |
| Yoshinori Nakayama | yoshinori_nakayama&komatsu-trilink.jp |