Service Name and Transport Protocol Port Number Registry

Last Updated
TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov and Wes Eddy; 
    DCCP: Eddie Kohler; SCTP: Allison Mankin
Service names and port numbers are used to distinguish between different
services that run over transport protocols such as TCP, UDP, DCCP, and

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]. System Ports are assigned by IETF
process for standards-track protocols, as per [RFC6335].  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:                                           *
*                                                                      *
* REGISTERED OR NOT.                                                   *
Available Formats




Plain text
Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Known Unauthorized Uses Assignment Notes
parity udp PA-R-I-Ty (Public Address - Radio - Intercom - Telefony) [ims_Info] [Oskar_Persano] 2011-10-20 Defined TXT keys: Proprietary
pgpkey-hkp Horowitz Key Protocol (HKP) [Marc_Horowitz] [Marc_Horowitz] Defined TXT keys: None
pgpkey-http PGP Keyserver using HTTP/1.1 [Jeroen_Massar_3] [Jeroen_Massar_3] Defined TXT keys: path=<path on the server where the HKP applications reside> normally: "path=/pks/"
pgpkey-https PGP Keyserver using HTTPS [Jeroen_Massar_3] [Jeroen_Massar_3] Defined TXT keys: path=<path on the server where the HKP applications reside> normally: "path=/pks/"
pgpkey-ldap PGP Keyserver using LDAP [Jeroen_Massar_3] [Jeroen_Massar_3] Defined TXT keys: None
pgpkey-mailto PGP Key submission using SMTP [Jeroen_Massar_3] [Jeroen_Massar_3] Defined TXT keys: user=<user portion of the mail address>
photoparata Photo Parata Event Photography Software [Sam_Carleton] [Sam_Carleton] Defined TXT keys: None
photosmithsync tcp Photosmith's iPad to Lightroom sync protocol [Photosmith] [Chris_Horne] 2011-10-27 Defined TXT keys: None
pictua Pictua Intercommunication Protocol [Isaack_Rasmussen] [Isaack_Rasmussen] Defined TXT keys: None
piesync pieSync Computer to Computer Synchronization [Timothy_Wayper] [Timothy_Wayper] Defined TXT keys: None
piu Pedestal Interface Unit by RPM-PSI [James_Nikolai] [James_Nikolai] Defined TXT keys: None
pkixrep Public Key Infrastructure Repository Locator Service [RFC4386]
poch Parallel OperatiOn and Control Heuristic (Pooch) [Dean_Dauger] [Dean_Dauger] Defined TXT keys: None
podcastproxy tcp Protocol for communication between Podcast [Moritz_Schmale] [Moritz_Schmale] 2011-10-07 Defined TXT keys: None
pokeeye Communication channel for "Poke Eye" Elgato EyeTV remote controller [Kristoffer_Lawson] [Kristoffer_Lawson] Defined TXT keys: None
powereasy-erp PowerEasy ERP [Ulaganathan_Sriramul] [Ulaganathan_Sriramul] Defined TXT keys: ip, port, name, instance, cgi-alias, major-version, minor-version, custom
powereasy-pos PowerEasy Point of Sale [Murthy_Parthasarathi] [Murthy_Parthasarathi] Defined TXT keys: ip, port, type, device-id, major-version, minor-version, custom
pplayer-ctrl Piano Player Remote Control [Juraj_Zopp] [Juraj_Zopp] Defined TXT keys: Proprietary
pres tcp Presence [RFC3861]
pres udp Presence [RFC3861]
presence Peer-to-peer messaging / Link-Local Messaging [XMPP_Registrar] [XMPP_Registrar] Defined TXT keys: See Note: Registration updated May 2007. Was formerly listed as "iChat AV" (Apple's IM client for Mac OS X) with TXT keys: txtvers, port.p2pj, phsh, vc, 1st, AIM, msg, status, last When first shipped in Mac OS X 10.2, iChat's peer-to-peer messaging protocol was created to solve the problem of serverless messaging between peers on the same link. However, there is nothing inherent in the protocol that limits it to being only link-local; it was simply an artifact of iChat in Mac OS X 10.2 using link-local Multicast DNS to discover peers. With the advent of Wide-Area DNS-SD, it is also possible to use iChat's peer-to-peer messaging between machines on different links.
print-caps Retrieve a description of a device's print capabilities [Troy_Bergstrand] [Troy_Bergstrand] Defined TXT keys: None
printopia tcp Port to allow for administration and control of "Printopia" application software, which provides printing services to mobile users [Ecamm_Network_LLC] [Chris_Kent] 2011-10-24 Defined TXT keys: uuid = 55A346CB-C87C-4569-A4B0-248E6388893B vers = 1.0
profilemac Profile for Mac medical practice management software [David_Sinclair_2] [David_Sinclair_2] Defined TXT keys: None
prolog Prolog [Mike_Brady] [Mike_Brady] Defined TXT keys: version=<version number>
protonet Protonet node and service discovery protocol [Ali_Jelveh] [Ali_Jelveh] Defined TXT keys: version, notes
psap udp Progal Service Advertising Protocol [Soren_Weber] [Soren_Weber] Defined TXT keys: c0, c1, ..., cn
psia Physical Security Interoperability Alliance Protocol [Frank_Yeh] [Frank_Yeh] Defined TXT keys: txtvers, protovers
pstmailsync tcp File synchronization protocol for Pst Mail Sync [Arrow_Bit_SL] [Javier_Nigro] 2012-04-26 Defined TXT keys: uuid=<unique instance identifier>
pstmailsync-ssl tcp Secured file synchronization protocol for Pst Mail Sync [Arrow_Bit_SL] [Javier_Nigro] 2012-04-26 Defined TXT keys: uuid=<unique instance identifier>
ptnetprosrv2 PTNetPro Service [Apple_Computer] [Apple_Computer] Defined TXT keys: None Profiling and performance analysis protocol for Shark 4.0 and BigTop.
ptp-init tcp Picture Transfer Protocol(PTP) Initiator [Canon_Inc] [Tatsuhiko_Sakai] 2011-10-03 Defined TXT keys: srvver, mn, mf, md, srv, tid
ptp-req PTP Initiation Request Protocol [Mark_Wood] [Mark_Wood] Defined TXT keys: txtvers, guid, c0, c1, c2, ..., where the number of c_n attributes is variable
puzzle Protocol used for puzzle games [Michael_Thomason] [Michael_Thomason] Defined TXT keys: None
pvaccess tcp Experimental Physics and Industrial Control System [Matej_Sekoranja] [Matej_Sekoranja] 2012-03-23 Defined TXT keys: None
qbox QBox Appliance Locator [Geoff_Back_4] [Geoff_Back_4] Defined TXT keys: None
qttp QuickTime Transfer Protocol [Stuart_Cheshire_5] [Stuart_Cheshire_5] Defined TXT keys: u=<username> p=<password> path=<path to document> (Same as for _http._tcp)
quad tcp Distributed Game Data [Niall_Hogg] [Niall_Hogg] 2011-10-25 Defined TXT keys: Proprietary
quinn Quinn Game Server [Simon_Haertel] [Simon_Haertel] Defined TXT keys: None
rakket Rakket Client Protocol [Orion_Reblitz_Richar] [Orion_Reblitz_Richar] Defined TXT keys: None
radiotag RadioTAG: Event tagging for radio services [Andy_Buckingham] [Andy_Buckingham] Defined TXT keys: None
radiovis RadioVIS: Visualisation for radio services [Andy_Buckingham] [Andy_Buckingham] Defined TXT keys: None
radioepg RadioEPG: Electronic Programme Guide for radio services [Andy_Buckingham] [Andy_Buckingham] Defined TXT keys: None
radioport tcp RadioPort Message Service [Bob_Iannucci] [Bob_Iannucci] 2011-11-23 Defined TXT keys: NONE
radioport udp RadioPort Message Service [Bob_Iannucci] [Bob_Iannucci] 2011-11-23 Defined TXT keys: NONE
raop Remote Audio Output Protocol (AirTunes) [BonjourDev] [BonjourDev] 2011-10-14 Defined TXT keys: None
rbr RBR Instrument Communication [Greg_Johnson] [Greg_Johnson] Defined TXT keys: None
rce PowerCard [DeVoeSquared] [DeVoeSquared] Defined TXT keys: None
rdp Windows Remote Desktop Protocol [Jugaari] [Jugaari] Defined TXT keys: None
realplayfavs RealPlayer Shared Favorites [RealNetworks] [RealNetworks] Defined TXT keys: None
recipe-box tcp The Recipe Box Exchange [Corpus_Collusion] [Kathy_Tafel] 2011-08-23 Defined TXT keys: txtvers
recipe-sharing tcp Recipe Sharing Protocol [Daniel_G_Taylor] [Daniel_G_Taylor] 2007-11 Defined TXT keys: []
recolive-cc tcp Remote Camera Control [RecoLive_Sàrl] [Gabriele_Mondada] 2012-08-29 Defined TXT keys: txtvers, cid, nbd, cap
recolive-cc udp Remote Camera Control [RecoLive_Sàrl] [Gabriele_Mondada] 2012-08-29 Defined TXT keys: txtvers, cid, nbd, cap
recordit-itp tcp Recordit Image Transport Protocol [Freshout] [Ruben_Beltran_del_Rio_2] 2014-04-14 Defined TXT keys: None
remote Remote Device Control Protocol [Gregory_Dudek] [Gregory_Dudek] Defined TXT keys: txtvers=<TXT record version tag> protovers=<protocol vesion number> forground=<primary device or system> version=<firmware/instrument controller version>
remoteburn LaCie Remote Burn [Serge_DE_LUCA] [Serge_DE_LUCA] Defined TXT keys: server_version, min_client_version
renderpipe ARTvps RenderDrive/PURE Renderer Protocol [Andrew_Hoddinott] [Andrew_Hoddinott] Defined TXT keys: None
rendezvouspong RendezvousPong [Math_Game_House_Soft] [Math_Game_House_Soft] Defined TXT keys: None
renkara-sync Renkara synchronization protocol [Michael_J_Primeaux] [Michael_J_Primeaux] Defined TXT keys: None
resol-vbus RESOL VBus [Daniel_Wippermann] [Daniel_Wippermann] Defined TXT keys: None
retrospect Retrospect backup and restore service [Michael_Marks] [Michael_Marks] Defined TXT keys: None
rfbc Remote Frame Buffer Client (Used by VNC viewers in listen-mode) [Ole_Morten_Duesund] [Ole_Morten_Duesund] Defined TXT keys: server=dns-name/ip-address:port of currently displayed VNC server. Empty if not showing anything/available.
rfid RFID Reader Mach1(tm) Protocol [Paul_Dietrich] [Paul_Dietrich] Defined TXT keys: None
rgb tcp RGB Spectrum Device Discovery [RGB_Spectrum] [Steve_Hershey] 2011-10-10 Defined TXT keys: Keyboard, Mouse, Option1, Option2, Option3, Option4, ModelName
riousbprint Remote I/O USB Printer Protocol [Rob_Newberry] [Rob_Newberry] Defined TXT keys: See BonjourPrinting.pdf.
roambot tcp Roambot communication [Roambotics_Inc] [Scott_Menor] 2013-10-18 Defined TXT keys: None
roku-rcp Roku Control Protocol [Don_Woodward] [Don_Woodward] Defined TXT keys: txtvers=1
rql RemoteQuickLaunch [Daniel_Heffernan] [Daniel_Heffernan] Defined TXT keys: None
rr-disc Robot Raconteur discovery [Wason_Technology_LLC] [John_Wason] 2014-01-27 Defined TXT keys: None
rsmp-server Remote System Management Protocol (Server Instance) [Geoff_Back_3] [Geoff_Back_3] Defined TXT keys: apiver=<major.minor>
rubygems RubyGems GemServer [Rich_Kilmer] [Rich_Kilmer] Defined TXT keys: None
rym-rrc tcp Raymarine remote control protocol [Raymarine_UK_Limited] [Geoffrey_Beer] 2012-05-24 2012-06-04 Defined TXT keys: raymarine-mfd-rrc-version, raymarine-mfd-model, raymarine-mfd-serial
safarimenu Safari Menu [Jesus_De_Meyer] [Jesus_De_Meyer] Defined TXT keys: None
sallingbridge Salling Clicker Sharing [Jonas_Salling] [Jonas_Salling] Defined TXT keys: None
sallingclicker Salling Clicker Service [Jonas_Salling] [Jonas_Salling] Defined TXT keys: None
salutafugijms Salutafugi Peer-To-Peer Java Message Service Implementation [David_Walend] [David_Walend] Defined TXT keys: SalutaProperties
sandvox Sandvox [Karelia_Software] [Karelia_Software] Defined TXT keys: None
savagesoft tcp Proprietary Client Server Protocol [Andy_Savage] [Andy_Savage] 2012-07-13 Defined TXT keys: None
sc-golf StrawberryCat Golf Protocol [Phil_Willoughby] [Phil_Willoughby] Defined TXT keys: None
scanner Bonjour Scanning [Baskaran_Subramaniam] [Baskaran_Subramaniam] Defined TXT keys: None
schick Schick [Heiko_Kretschmer] [Heiko_Kretschmer] Defined TXT keys: None
scone Scone [James_Moore] [James_Moore] Defined TXT keys: None
scpi-raw IEEE 488.2 (SCPI) Socket [Nick_Barendt_3] [Nick_Barendt_3] Defined TXT keys: None
scpi-telnet IEEE 488.2 (SCPI) Telnet [Nick_Barendt_3] [Nick_Barendt_3] Defined TXT keys: None
sdsharing Speed Download [Yazsoft] [Yazsoft] Defined TXT keys: None
see SubEthaEdit 2 [TheCodingMonkeys] [TheCodingMonkeys] Defined TXT keys: txtvers=1, name=<Full Name>, userid=<User ID>, version=2
seeCard seeCard [Stefan_Pantke] [Stefan_Pantke] Defined TXT keys: None
senteo-http Senteo Assessment Software Protocol [Michael_Boyle] [Michael_Boyle] Defined TXT keys: None
sentillion-vlc Sentillion Vault System [George_Hartz] [George_Hartz] Defined TXT keys: None
sentillion-vlt Sentillion Vault Systems Cluster [George_Hartz] [George_Hartz] Defined TXT keys: None
sepvsync SEPV Application Data Synchronization Protocol [Kazuya_Ogata] [Kazuya_Ogata] Defined TXT keys: Proprietary
serendipd serendiPd Shared Patches for Pure Data [Hans_Christoph_Stein] [Hans_Christoph_Stein] Defined TXT keys: None
servereye ServerEye AgentContainer Communication Protocol [Andreas_Behr] [Andreas_Behr] Defined TXT keys: None
servermgr Mac OS X Server Admin [Jeff_Albouze] [Jeff_Albouze] Defined TXT keys: None
services DNS Service Discovery [Stuart_Cheshire_5][Marc_Krochmal] [Stuart_Cheshire_5][Marc_Krochmal] Not a service type. Special name reserved for DNS-SD meta queries.
sessionfs Session File Sharing [Anthony_Williams] [Anthony_Williams] Defined TXT keys: Text keys are the file extensions of any file the user plans to share, i.e. pdf, doc, mp3.
sftp-ssh Secure File Transfer Protocol over SSH [Bryan_Cole] [Bryan_Cole] Defined TXT keys: u=<username> p=<password> path=<path>
shifter Window Shifter server protocol [Antoine_Martin] [Antoine_Martin] Defined TXT keys: username The login username to use (optional) ssh_tunnel Whether an SSH tunnel must be used (required) iface The network interface the server is on (required - may be empty) version Software version (required) ID Server Identifier (requried)
shipsgm Swift Office Ships [Verek] [Verek] Defined TXT keys: None
shipsinvit Swift Office Ships [Verek] [Verek] Defined TXT keys: None


ID Name Organization Contact URI Last Updated
[Ali_Jelveh] Ali Jelveh mailto:ali&
[Andreas_Behr] Andreas Behr mailto:andreas.behr&
[Andrew_Hoddinott] Andrew Hoddinott mailto:support&
[Andy_Buckingham] Andy Buckingham mailto:feedback&
[Andy_Savage] Andy Savage mailto:andy.savage1& 2012-07-13
[Anthony_Williams] Anthony Williams mailto:tonydubs&
[Antoine_Martin] Antoine Martin mailto:antoine&
[Apple_Computer] Apple Computer mailto:perftools-feedback&
[Arrow_Bit_SL] Arrow Bit SL mailto:info& 2012-04-26
[Baskaran_Subramaniam] Baskaran Subramaniam mailto:baskaran&
[Bob_Iannucci] Bob Iannucci mailto:bob& 2011-11-23
[BonjourDev] BonjourDev mailto:bonjourdev& 2011-10-14
[Bryan_Cole] Bryan Cole mailto:bryan.cole&
[Canon_Inc] Canon Inc. mailto:fujii.ken-ichi149& 2011-10-10
[Chris_Horne] Chris Horne Photosmith mailto:ckhorne& 2011-10-27
[Chris_Kent] Chris Kent Ecamm Network, LLC mailto:chris& 2011-10-24
[Corpus_Collusion] Corpus Collusion mailto:developer& 2011-08-23
[Daniel_G_Taylor] Daniel G. Taylor mailto:dan& 2007-11
[Daniel_Heffernan] Daniel Heffernan mailto:me&
[Daniel_Wippermann] Daniel Wippermann mailto:Daniel.Wippermann&
[David_Sinclair_2] David Sinclair mailto:bonjour&
[David_Walend] David Walend mailto:david&
[DeVoeSquared] DeVoeSquared mailto:support&
[Dean_Dauger] Dean Dauger mailto:D&
[Don_Woodward] Don Woodward mailto:dwoodward&
[Ecamm_Network_LLC] Ecamm Network, LLC mailto:chris& 2011-10-24
[Frank_Yeh] Frank Yeh mailto:fyeh&
[Freshout] Freshout mailto:navid& 2014-04-14
[Gabriele_Mondada] Gabriele Mondada RecoLive Sàrl mailto:gmondada& 2012-08-29
[Geoff_Back_3] Geoff Back mailto:geoff&
[Geoff_Back_4] Geoff Back mailto:geoff.back&
[Geoffrey_Beer] Geoffrey Beer Raymarine UK Limited mailto:Geoff.Beer& 2012-05-24
[George_Hartz] George Hartz mailto:george.hartz&
[Greg_Johnson] Greg Johnson mailto:greg.johnson&
[Gregory_Dudek] Gregory Dudek mailto:dudek&
[Hans_Christoph_Stein] Hans-Christoph Steiner mailto:hans&
[Heiko_Kretschmer] Heiko Kretschmer mailto:info&
[ims_Info] ims Info Management Systems AG mailto:ope& 2011-10-20
[Isaack_Rasmussen] Isaack Rasmussen mailto:isaack&
[James_Moore] James Moore mailto:jam&
[James_Nikolai] James Nikolai mailto:jamesnikolai&
[Javier_Nigro] Javier Nigro Arrow Bit SL mailto:support& 2012-04-26
[Jeff_Albouze] Jeff Albouze mailto:foup&
[Jeroen_Massar_3] Jeroen Massar mailto:jeroen&
[Jesus_De_Meyer] Jesus De Meyer mailto:jesus&
[John_Wason] John Wason Wason Technology, LLC mailto:wason& 2014-01-27
[Jonas_Salling] Jonas Salling mailto:jonas&
[Jugaari] Jugaari mailto:support&
[Juraj_Zopp] Juraj Zopp mailto:juraj.zopp&
[Karelia_Software] Karelia Software
[Kathy_Tafel] Kathy Tafel Corpus Collusion mailto:kt& 2011-08-23
[Kazuya_Ogata] Kazuya Ogata mailto:info&
[Kristoffer_Lawson] Kristoffer Lawson mailto:setok&
[Marc_Horowitz] Marc Horowitz mailto:marc&
[Marc_Krochmal] Marc Krochmal mailto:marc&
[Mark_Wood] Mark Wood mailto:mark.d.wood&
[Matej_Sekoranja] Matej Sekoranja mailto:matej.sekoranja& 2012-03-23
[Math_Game_House_Soft] Math Game House Software mailto:mathgamehouse&
[Michael_Boyle] Michael Boyle mailto:michaelboyle&
[Michael_J_Primeaux] Michael J Primeaux mailto:michael.primeaux&
[Michael_Marks] Michael Marks mailto:marks_michael&
[Michael_Thomason] Michael Thomason mailto:mthomason&
[Mike_Brady] Mike Brady mailto:brady&
[Moritz_Schmale] Moritz Schmale mailto:narrow.m& 2011-10-07
[Murthy_Parthasarathi] Murthy Parthasarathi mailto:pvmurthy&
[Niall_Hogg] Niall Hogg mailto:niall.hogg& 2011-10-25
[Nick_Barendt_3] Nick Barendt mailto:nbarendt&
[Ole_Morten_Duesund] Ole-Morten Duesund mailto:ole-morten.duesund&
[Orion_Reblitz_Richar] Orion Reblitz-Richardson mailto:orionr&
[Oskar_Persano] Oskar Persano ims Info Management Systems AG mailto:ope& 2011-10-20
[Paul_Dietrich] Paul Dietrich mailto:registrar&
[Phil_Willoughby] Phil Willoughby mailto:phil.willoughby&
[Photosmith] Photosmith mailto:ckhorne& 2011-10-27
[Raymarine_UK_Limited] Raymarine UK Limited mailto:Geoff.Beer& 2012-05-24
[RealNetworks] RealNetworks mailto:macplayer&
[RGB_Spectrum] RGB Spectrum mailto:shershey& 2011-10-10
[Rich_Kilmer] Rich Kilmer mailto:rich&
[Roambotics_Inc] Roambotics, Inc. mailto:iana& 2013-10-18
[Rob_Newberry] Rob Newberry mailto:rnewberry&
[Ruben_Beltran_del_Rio_2] Ruben Beltran del Rio Freshout mailto:ben& 2014-04-14
[Sam_Carleton] Sam Carleton mailto:scarleton&
[Scott_Menor] Scott Menor Roambotics, Inc. mailto:scott& 2013-10-18
[Serge_DE_LUCA] Serge DE LUCA mailto:sdeluca&
[Simon_Haertel] Simon Haertel mailto:simonhaertel&
[Soren_Weber] Soren Weber mailto:sw&
[Stefan_Pantke] Stefan Pantke mailto:sales&
[Steve_Hershey] Steve Hershey RGB Spectrum mailto:shershey& 2011-10-10
[Stuart_Cheshire_5] Stuart Cheshire mailto:cheshire&
[Tatsuhiko_Sakai] Tatsuhiko Sakai Canon Inc. mailto:sakai.tatsuhiko& 2011-10-03
[TheCodingMonkeys] TheCodingMonkeys mailto:monkeys&
[Timothy_Wayper] Timothy Wayper mailto:timmy&
[Troy_Bergstrand] Troy Bergstrand mailto:troy.bergstrand&
[Ulaganathan_Sriramul] Ulaganathan Sriramulu mailto:ulag&
[Verek] Verek mailto:info&
[Wason_Technology_LLC] Wason Technology, LLC mailto:wason& 2014-01-27
[XMPP_Registrar] XMPP Registrar mailto:registrar&
[Yazsoft] Yazsoft mailto:info&