Internet Assigned Numbers Authority Uniform Resource Identifier (URI) Schemes Last Updated 2024-02-07 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registry included below • Uniform Resource Identifier (URI) Schemes Uniform Resource Identifier (URI) Schemes Expert(s) Graham Klyne Reference [RFC7595][RFC Errata 4420][RFC8615] Note Requests for permanent registration must be preceded by mailing list review, per Section 7.2 of [RFC7595]. Note Schemes for which the primary reference is an Internet-Draft are generally considered to be provisional until the I-D is approved by the IETF for RFC publication, even when the specification requests permanent registration. Available Formats [IMG] CSV Range Registration Procedures Permanent Expert Review Provisional First Come First Served Historical Expert Review Well-Known URI Scheme Template Description Status URI Reference Notes Support aaa Diameter Protocol Permanent - [RFC6733] aaas Diameter Protocol with Secure Permanent - [RFC6733] Transport about about Permanent - [RFC6694] acap application configuration access Permanent - [RFC2244] protocol acct acct Permanent - [RFC7565] acd prov/acd acd Provisional - [Michael_Hedenus] acr prov/acr acr Provisional - [OMA-OMNA] adiumxtra prov/adiumxtra adiumxtra Provisional - [Dave_Thaler] adt prov/adt adt Provisional - [SAP_SE] afp prov/afp afp Provisional - [Dave_Thaler] afs Andrew File System global file names Provisional - [RFC1738] aim prov/aim aim Provisional - [Dave_Thaler] amss prov/amss amss Provisional - [RadioDNS_Project] android prov/android android Provisional - [Adam_Barth][https://developer.android.com/guide/topics/manifest/manifest-intro] appdata prov/appdata appdata Provisional - [urischemeowners_at_microsoft.com] apt prov/apt apt Provisional - [Dave_Thaler] ar prov/ar ar Provisional - [Arweave_Team] ark prov/ark ark Provisional - [ARK_agency][https://n2t.net/ark:/21206/10015] at prov/at at (see [reviewer notes]) Provisional - [Bluesky_PBLLC][Paul_Frazee] attachment prov/attachment attachment Provisional - [Dave_Thaler] aw prov/aw aw Provisional - [Dave_Thaler] barion prov/barion barion Provisional - [Bíró_Tamás] bb historic/bb bb Historical - [IESG] beshare prov/beshare beshare Provisional - [Dave_Thaler] bitcoin prov/bitcoin bitcoin Provisional - [Dave_Thaler] bitcoincash prov/bitcoincash bitcoincash Provisional - [Corentin_Mercier] blob prov/blob blob Provisional - [W3C_WebApps_Working_Group][Chris_Rebert] bolo prov/bolo bolo Provisional - [Dave_Thaler] brid prov/brid brid Provisional - [Jürgen_Grupp][Michael_Ranft][Sophie_Schenkel] browserext prov/browserext browserext Provisional - [Mike_Pietraszak] cabal prov/cabal cabal Provisional - [Frédéric_Wang][Cabal_Club] calculator prov/calculator calculator Provisional - [urischemeowners_at_microsoft.com] callto prov/callto callto Provisional - [Alexey_Melnikov] cap Calendar Access Protocol Permanent - [RFC4324] cast prov/cast cast Provisional - [Adam_Barth][https://developers.google.com/cast/docs/registration] casts prov/casts casts Provisional - [Adam_Barth][https://developers.google.com/cast/docs/registration] chrome prov/chrome chrome Provisional - [Dave_Thaler] chrome-extension prov/chrome-extension chrome-extension Provisional - [Dave_Thaler] cid content identifier Permanent - [RFC2392] coap coap Permanent [RFC7252] [RFC7252] coap+tcp coap+tcp (see [reviewer notes]) Permanent [RFC8323] [RFC8323] coap+ws coap+ws (see [reviewer notes]) Permanent [RFC8323] [RFC8323] coaps coaps Permanent [RFC7252] [RFC7252] coaps+tcp coaps+tcp (see [reviewer notes]) Permanent [RFC8323] [RFC8323] coaps+ws coaps+ws (see [reviewer notes]) Permanent [RFC8323] [RFC8323] com-eventbrite-attendee prov/com-eventbrite-attendee com-eventbrite-attendee Provisional - [Bob_Van_Zant] content prov/content content Provisional - [Dave_Thaler] content-type prov/content-type content-type Provisional - [Donald_Eastlake] crid TV-Anytime Content Reference Permanent - [RFC4078] Identifier cstr prov/cstr cstr Provisional - [Wang_Shu] cvs prov/cvs cvs Provisional - [Dave_Thaler] dab prov/dab dab Provisional - [RadioDNS_Project] dat prov/dat dat Provisional - [Frédéric_Wang][Paul_Frazee] data data Permanent - [RFC2397] dav dav Permanent - [RFC4918] dhttp prov/dhttp dhttp (see [reviewer notes]) Provisional - [Qi_Zhou] diaspora prov/diaspora diaspora Provisional - [Dennis_Schubert] dict dictionary service protocol Permanent - [RFC2229] did prov/did did Provisional - [W3C_Decentralized_Identifier_Working_Group][Manu_Sporny][Ivan_Herman] dis prov/dis dis Provisional - [Christophe_Meessen] dlna-playcontainer prov/dlna-playcontainer dlna-playcontainer Provisional - [DLNA] dlna-playsingle prov/dlna-playsingle dlna-playsingle Provisional - [DLNA] dns Domain Name System Permanent - [RFC4501] dntp prov/dntp dntp Provisional - [Hans-Dieter_A._Hiep] doi prov/doi doi Provisional - [Frédéric_Wang][International_DOI_Foundation] dpp prov/dpp dpp Provisional - [Gaurav_Jain][Wi-Fi_Alliance] drm prov/drm drm Provisional - [RadioDNS_Project] drop historic/drop drop Historical - [IESG] dtmi prov/dtmi dtmi Provisional - [urischemeowners_at_microsoft.com] dtn DTNRG research and development Permanent - [RFC9171] dvb dvb Provisional - [draft-mcroberts-uri-dvb] dvx prov/dvx dvx Provisional - [Clemens_Bastian] dweb prov/dweb dweb Provisional - [Frédéric_Wang][Protocol_Labs] ed2k prov/ed2k ed2k Provisional - [Dave_Thaler] eid prov/eid eid Provisional - [eSIM_Group_GSM_Association] elsi prov/elsi elsi Provisional - [Kimmo_Lindholm] embedded prov/embedded embedded Provisional - [Peter_Hoddie] ens prov/ens ens Provisional - [Ricky_Bloomfield][Bradley_Nelson] ethereum prov/ethereum ethereum Provisional - [Frédéric_Wang][ligi] example example Permanent - [RFC7595] facetime prov/facetime facetime Provisional - [Dave_Thaler] fax fax Historical - [RFC2806][RFC3966] feed prov/feed feed Provisional - [Dave_Thaler] feedready prov/feedready feedready Provisional - [Mirko_Nosenzo] fido prov/fido fido Provisional - [Adam_Langley] file Host-specific file names Permanent - [RFC8089] filesystem historic/filesystem filesystem Historical - [W3C_WebApps_Working_Group][Chris_Rebert] finger prov/finger finger Provisional - [Dave_Thaler] first-run-pen-experience prov/first-run-pen-experience first-run-pen-experience Provisional - [urischemeowners_at_microsoft.com] fish prov/fish fish Provisional - [Dave_Thaler] fm prov/fm fm Provisional - [RadioDNS_Project] ftp File Transfer Protocol Permanent - [RFC1738] fuchsia-pkg prov/fuchsia-pkg fuchsia-pkg Provisional - [Adam_Barth][https://fuchsia.googlesource.com/fuchsia/] geo Geographic Locations Permanent - [RFC5870] gg prov/gg gg Provisional - [Dave_Thaler] git prov/git git Provisional - [Dave_Thaler] gitoid prov/gitoid gitoid Provisional - [Ed_Warnicke] gizmoproject prov/gizmoproject gizmoproject Provisional - [Dave_Thaler] go go Permanent - [RFC3368] gopher The Gopher Protocol Permanent - [RFC4266] graph prov/graph graph Provisional - [Alastair_Green] grd historic/grd grd Historical - [IESG] gtalk prov/gtalk gtalk Provisional - [Dave_Thaler] h323 H.323 Permanent - [RFC3508] ham ham Provisional - [RFC7046] hcap prov/hcap hcap Provisional - [urischemeowners_at_microsoft.com] hcp prov/hcp hcp Provisional - [Alexey_Melnikov] http Hypertext Transfer Protocol Permanent [RFC8615] [RFC9110, Section 4.2.1] https Hypertext Transfer Protocol Secure Permanent [RFC8615] [RFC9110, Section 4.2.2] hxxp prov/hxxp hxxp Provisional - [draft-salgado-hxxp] hxxps prov/hxxps hxxps Provisional - [draft-salgado-hxxp] hydrazone prov/hydrazone hydrazone Provisional - [Matthias_Merkel][https://tech.hydrazone.pro/uri/specification/hydrazone.txt] hyper prov/hyper hyper Provisional - [Frédéric_Wang][Paul_Frazee] iax Inter-Asterisk eXchange Version 2 Permanent - [RFC5456] icap Internet Content Adaptation Protocol Permanent - [RFC3507] icon icon Provisional - [draft-lafayette-icon-uri-scheme] im Instant Messaging Permanent - [RFC3860] imap internet message access protocol Permanent - [RFC5092] Information Assets with Identifiers in Public Namespaces. [RFC4452] (section 3) defines an "info" info registry of public namespaces, which Permanent - [RFC4452] is maintained by NISO and can be accessed from [http://info-uri.info/]. iotdisco prov/iotdisco iotdisco Provisional - [Peter_Waher][https://www.iana.org/assignments/uri-schemes/prov/iotdisco.pdf] ipfs prov/ipfs ipfs Provisional - [Frédéric_Wang][Protocol_Labs] ipn ipn Permanent - [RFC9171] ipns prov/ipns ipns Provisional - [Frédéric_Wang][Protocol_Labs] ipp Internet Printing Protocol Permanent - [RFC3510] ipps Internet Printing Protocol over Permanent - [RFC7472] HTTPS irc prov/irc irc Provisional - [Dave_Thaler] irc6 prov/irc6 irc6 Provisional - [Dave_Thaler] ircs prov/ircs ircs Provisional - [Dave_Thaler] iris Internet Registry Information Permanent - [RFC3981] Service iris.beep iris.beep Permanent - [RFC3983] iris.lwz iris.lwz Permanent - [RFC4993] iris.xpc iris.xpc Permanent - [RFC4992] iris.xpcs iris.xpcs Permanent - [RFC4992] isostore prov/isostore isostore Provisional - [urischemeowners_at_microsoft.com] itms prov/itms itms Provisional - [Dave_Thaler] jabber perm/jabber jabber Permanent - [Peter_Saint-Andre] jar prov/jar jar Provisional - [Dave_Thaler] jms Java Message Service Provisional - [RFC6167] keyparc prov/keyparc keyparc Provisional - [Dave_Thaler] lastfm prov/lastfm lastfm Provisional - [Dave_Thaler] lbry prov/lbry lbry Provisional - [Alex_Grintsvayg] ldap Lightweight Directory Access Permanent - [RFC4516] Protocol ldaps prov/ldaps ldaps Provisional - [Dave_Thaler] leaptofrogans leaptofrogans Permanent - [RFC8589] lid prov/lid lid Provisional - [IS4] lorawan prov/lorawan lorawan Provisional - [OMA-DMSE] lpa prov/lpa lpa Provisional - [eSIM_Group_GSM_Association] lvlt prov/lvlt lvlt Provisional - [Alexander_Shishenko] machineProvisioningProgressReporter prov/machineProvisioningProgressReporter Windows Autopilot Modern Device Provisional - [urischemeowners_at_microsoft.com] Management status updates magnet prov/magnet magnet Provisional - [Dave_Thaler] mailserver Access to data available from mail Historical - [RFC6196] servers mailto Electronic mail address Permanent - [RFC6068] maps prov/maps maps Provisional - [Dave_Thaler] market prov/market market Provisional - [Dave_Thaler] matrix prov/matrix matrix Provisional - [Hubert_Chathi] message prov/message message Provisional - [Dave_Thaler] microsoft.windows.camera prov/microsoft.windows.camera microsoft.windows.camera Provisional - [urischemeowners_at_microsoft.com] microsoft.windows.camera.multipicker prov/microsoft.windows.camera.multipicker microsoft.windows.camera.multipicker Provisional - [urischemeowners_at_microsoft.com] microsoft.windows.camera.picker prov/microsoft.windows.camera.picker microsoft.windows.camera.picker Provisional - [urischemeowners_at_microsoft.com] mid message identifier Permanent - [RFC2392] mms prov/mms mms Provisional - [Alexey_Melnikov] modem modem Historical - [RFC2806][RFC3966] mongodb prov/mongodb mongodb Provisional - [Ignacio_Losiggio][Mongo_DB_Inc] moz prov/moz moz Provisional - [Joe_Hildebrand] ms-access prov/ms-access ms-access Provisional - [urischemeowners_at_microsoft.com] ms-appinstaller prov/ms-appinstaller ms-appinstaller Provisional - [urischemeowners_at_microsoft.com] ms-browser-extension prov/ms-browser-extension ms-browser-extension Provisional - [urischemeowners_at_microsoft.com] ms-calculator prov/ms-calculator ms-calculator Provisional - [urischemeowners_at_microsoft.com] ms-drive-to prov/ms-drive-to ms-drive-to Provisional - [urischemeowners_at_microsoft.com] ms-enrollment prov/ms-enrollment ms-enrollment Provisional - [urischemeowners_at_microsoft.com] ms-excel prov/ms-excel ms-excel Provisional - [urischemeowners_at_microsoft.com] ms-eyecontrolspeech prov/ms-eyecontrolspeech ms-eyecontrolspeech Provisional - [urischemeowners_at_microsoft.com] ms-gamebarservices prov/ms-gamebarservices ms-gamebarservices Provisional - [urischemeowners_at_microsoft.com] ms-gamingoverlay prov/ms-gamingoverlay ms-gamingoverlay Provisional - [urischemeowners_at_microsoft.com] ms-getoffice prov/ms-getoffice ms-getoffice Provisional - [urischemeowners_at_microsoft.com] ms-help prov/ms-help ms-help Provisional - [Alexey_Melnikov] ms-infopath prov/ms-infopath ms-infopath Provisional - [urischemeowners_at_microsoft.com] ms-inputapp prov/ms-inputapp ms-inputapp Provisional - [urischemeowners_at_microsoft.com] ms-launchremotedesktop prov/ms-launchremotedesktop ms-launchremotedesktop Provisional - [urischemeowners_at_microsoft.com] ms-lockscreencomponent-config prov/ms-lockscreencomponent-config ms-lockscreencomponent-config Provisional - [urischemeowners_at_microsoft.com] ms-media-stream-id prov/ms-media-stream-id ms-media-stream-id Provisional - [urischemeowners_at_microsoft.com] ms-meetnow prov/ms-meetnow ms-meetnow Provisional - [urischemeowners_at_microsoft.com] ms-mixedrealitycapture prov/ms-mixedrealitycapture ms-mixedrealitycapture Provisional - [urischemeowners_at_microsoft.com] ms-mobileplans prov/ms-mobileplans ms-mobileplans Provisional - [urischemeowners_at_microsoft.com] ms-newsandinterests prov/ms-newsandinterests ms-newsandinterests Provisional - [urischemeowners_at_microsoft.com] ms-officeapp prov/ms-officeapp ms-officeapp Provisional - [urischemeowners_at_microsoft.com] ms-people prov/ms-people ms-people Provisional - [urischemeowners_at_microsoft.com] ms-project prov/ms-project ms-project Provisional - [urischemeowners_at_microsoft.com] ms-powerpoint prov/ms-powerpoint ms-powerpoint Provisional - [urischemeowners_at_microsoft.com] ms-publisher prov/ms-publisher ms-publisher Provisional - [urischemeowners_at_microsoft.com] ms-remotedesktop prov/ms-remotedesktop ms-remotedesktop Provisional - [urischemeowners_at_microsoft.com] ms-remotedesktop-launch prov/ms-remotedesktop-launch ms-remotedesktop-launch Provisional - [urischemeowners_at_microsoft.com] ms-restoretabcompanion prov/ms-restoretabcompanion ms-restoretabcompanion Provisional - [urischemeowners_at_microsoft.com] ms-screenclip prov/ms-screenclip ms-screenclip Provisional - [urischemeowners_at_microsoft.com] ms-screensketch prov/ms-screensketch ms-screensketch Provisional - [urischemeowners_at_microsoft.com] ms-search prov/ms-search ms-search Provisional - [urischemeowners_at_microsoft.com] ms-search-repair prov/ms-search-repair ms-search-repair Provisional - [urischemeowners_at_microsoft.com] ms-secondary-screen-controller prov/ms-secondary-screen-controller ms-secondary-screen-controller Provisional - [urischemeowners_at_microsoft.com] ms-secondary-screen-setup prov/ms-secondary-screen-setup ms-secondary-screen-setup Provisional - [urischemeowners_at_microsoft.com] ms-settings prov/ms-settings ms-settings Provisional - [urischemeowners_at_microsoft.com] ms-settings-airplanemode prov/ms-settings-airplanemode ms-settings-airplanemode Provisional - [urischemeowners_at_microsoft.com] ms-settings-bluetooth prov/ms-settings-bluetooth ms-settings-bluetooth Provisional - [urischemeowners_at_microsoft.com] ms-settings-camera prov/ms-settings-camera ms-settings-camera Provisional - [urischemeowners_at_microsoft.com] ms-settings-cellular prov/ms-settings-cellular ms-settings-cellular Provisional - [urischemeowners_at_microsoft.com] ms-settings-cloudstorage prov/ms-settings-cloudstorage ms-settings-cloudstorage Provisional - [urischemeowners_at_microsoft.com] ms-settings-connectabledevices prov/ms-settings-connectabledevices ms-settings-connectabledevices Provisional - [urischemeowners_at_microsoft.com] ms-settings-displays-topology prov/ms-settings-displays-topology ms-settings-displays-topology Provisional - [urischemeowners_at_microsoft.com] ms-settings-emailandaccounts prov/ms-settings-emailandaccounts ms-settings-emailandaccounts Provisional - [urischemeowners_at_microsoft.com] ms-settings-language prov/ms-settings-language ms-settings-language Provisional - [urischemeowners_at_microsoft.com] ms-settings-location prov/ms-settings-location ms-settings-location Provisional - [urischemeowners_at_microsoft.com] ms-settings-lock prov/ms-settings-lock ms-settings-lock Provisional - [urischemeowners_at_microsoft.com] ms-settings-nfctransactions prov/ms-settings-nfctransactions ms-settings-nfctransactions Provisional - [urischemeowners_at_microsoft.com] ms-settings-notifications prov/ms-settings-notifications ms-settings-notifications Provisional - [urischemeowners_at_microsoft.com] ms-settings-power prov/ms-settings-power ms-settings-power Provisional - [urischemeowners_at_microsoft.com] ms-settings-privacy prov/ms-settings-privacy ms-settings-privacy Provisional - [urischemeowners_at_microsoft.com] ms-settings-proximity prov/ms-settings-proximity ms-settings-proximity Provisional - [urischemeowners_at_microsoft.com] ms-settings-screenrotation prov/ms-settings-screenrotation ms-settings-screenrotation Provisional - [urischemeowners_at_microsoft.com] ms-settings-wifi prov/ms-settings-wifi ms-settings-wifi Provisional - [urischemeowners_at_microsoft.com] ms-settings-workplace prov/ms-settings-workplace ms-settings-workplace Provisional - [urischemeowners_at_microsoft.com] ms-spd prov/ms-spd ms-spd Provisional - [urischemeowners_at_microsoft.com] ms-stickers prov/ms-stickers ms-stickers Provisional - [urischemeowners_at_microsoft.com] ms-sttoverlay prov/ms-sttoverlay ms-sttoverlay Provisional - [urischemeowners_at_microsoft.com] ms-transit-to prov/ms-transit-to ms-transit-to Provisional - [urischemeowners_at_microsoft.com] ms-useractivityset prov/ms-useractivityset ms-useractivityset Provisional - [urischemeowners_at_microsoft.com] ms-virtualtouchpad prov/ms-virtualtouchpad ms-virtualtouchpad Provisional - [urischemeowners_at_microsoft.com] ms-visio prov/ms-visio ms-visio Provisional - [urischemeowners_at_microsoft.com] ms-walk-to prov/ms-walk-to ms-walk-to Provisional - [urischemeowners_at_microsoft.com] ms-whiteboard prov/ms-whiteboard ms-whiteboard Provisional - [urischemeowners_at_microsoft.com] ms-whiteboard-cmd prov/ms-whiteboard-cmd ms-whiteboard-cmd Provisional - [urischemeowners_at_microsoft.com] ms-word prov/ms-word ms-word Provisional - [urischemeowners_at_microsoft.com] msnim prov/msnim msnim Provisional - [Alexey_Melnikov] msrp Message Session Relay Protocol Permanent - [RFC4975] msrps Message Session Relay Protocol Permanent - [RFC4975][RFC8873] Secure mss prov/mss mss Provisional - [Jarmo_Miettinen] Matter protocol on-boarding payloads mt perm/mt that are encoded for use in QR Codes Permanent - [Connectivity_Standards_Alliance] and/or NFC Tags mtqp Message Tracking Query Protocol Permanent - [RFC3887] mumble prov/mumble mumble Provisional - [Dave_Thaler] mupdate Mailbox Update (MUPDATE) Protocol Permanent - [RFC3656] mvn prov/mvn mvn Provisional - [Dave_Thaler] mvrp prov/mvrp mvrp (see [reviewer notes]) Provisional - [Antonio_Walker] mvrps prov/mvrps mvrps (see [reviewer notes]) Provisional - [Antonio_Walker] news USENET news Permanent - [RFC5538] nfs network file system protocol Permanent - [RFC2224] ni ni Permanent - [RFC6920] nih nih Permanent - [RFC6920] nntp USENET news using NNTP access Permanent - [RFC5538] notes prov/notes notes Provisional - [draft-dconmy-notes-uri-scheme-02] num prov/num Namespace Utility Modules Provisional - [Elliott_Brown][https://www.numprotocol.com/specification] ocf prov/ocf ocf Provisional - [Dave_Thaler] oid prov/oid oid Provisional - [draft-larmouth-oid-iri] onenote prov/onenote onenote Provisional - [urischemeowners_at_microsoft.com] onenote-cmd prov/onenote-cmd onenote-cmd Provisional - [urischemeowners_at_microsoft.com] opaquelocktoken opaquelocktokent Permanent - [RFC4918] openid prov/openid OpenID Connect Provisional - [OpenID_Foundation_Artifact_Binding_Working_Group][OpenID Connect Core 1.0, Section 7.3] openpgp4fpr prov/openpgp4fpr openpgp4fpr Provisional - [Wiktor_Kwapisiewicz] otpauth prov/otpauth otpauth Provisional - [Frédéric_Wang][Thomas_Habets] p1 historic/p1 p1 Historical - [IESG] pack historic/pack pack Historical - [draft-shur-pack-uri-scheme] palm prov/palm palm Provisional - [Dave_Thaler] paparazzi prov/paparazzi paparazzi Provisional - [Dave_Thaler] payment prov/payment payment Provisional - [Arild_Hegvik][https://bitcoincheque.org] payto prov/payto payto Provisional - [RFC8905] pkcs11 PKCS#11 Permanent - [RFC7512] platform prov/platform platform Provisional - [Dave_Thaler] pop Post Office Protocol v3 Permanent - [RFC2384] pres Presence Permanent - [RFC3859] prospero Prospero Directory Service Historical - [RFC4157] proxy prov/proxy proxy Provisional - [Dave_Thaler] pwid prov/pwid pwid Provisional - [Eld_Zierau] psyc prov/psyc psyc Provisional - [Dave_Thaler] pttp prov/pttp pttp Provisional - [Tony_Deng][Tuan_Hoang][Bob_Hinkle][Mark_Chen] qb prov/qb qb Provisional - [Jan_Pokorny] query prov/query query Provisional - [Dave_Thaler] quic-transport prov/quic-transport quic-transport Provisional - [draft-vvv-webtransport-quic] redis prov/redis redis Provisional - [Chris_Rebert] rediss prov/rediss rediss Provisional - [Chris_Rebert] reload reload Permanent - [RFC6940] res prov/res res Provisional - [Alexey_Melnikov] resource prov/resource resource Provisional - [Dave_Thaler] rmi prov/rmi rmi Provisional - [Dave_Thaler] rsync rsync Provisional - [RFC5781] rtmfp prov/rtmfp rtmfp Provisional - [RFC7425] rtmp prov/rtmp rtmp Provisional - [Dave_Thaler] rtsp Real-Time Streaming Protocol (RTSP) Permanent - [RFC2326][RFC7826] rtsps Real-Time Streaming Protocol (RTSP) Permanent - [RFC2326][RFC7826] over TLS rtspu Real-Time Streaming Protocol (RTSP) Permanent - [RFC2326] over unreliable datagram transport sarif prov/sarif sarif Provisional - [OASIS_Open][Michael_C_Fanning][David_Keaton] secondlife prov/secondlife query Provisional - [Dave_Thaler] secret-token prov/secret-token secret-token Provisional - [RFC8959] service service location Permanent - [RFC2609] session session Permanent - [RFC6787] sftp prov/sftp query Provisional - [Dave_Thaler] sgn prov/sgn sgn Provisional - [Dave_Thaler] shc prov/shc shc Provisional - [Josh_Mandel] shttp (OBSOLETE) Secure Hypertext Transfer Protocol Permanent - [RFC2660][status-change-http-experiments-to-historic] sieve ManageSieve Protocol Permanent - [RFC5804] simpleledger prov/simpleledger simpleledger Provisional - [James_Cramer] simplex prov/simplex simplex Provisional - [Evgeny_Poberezkin] sip session initiation protocol Permanent - [RFC3261] sips secure session initiation protocol Permanent - [RFC3261] skype prov/skype skype Provisional - [Alexey_Melnikov] smb prov/smb smb Provisional - [Dave_Thaler] smp prov/smp smp Provisional - [Evgeny_Poberezkin] sms Short Message Service Permanent - [RFC5724] smtp prov/smtp smtp Provisional - [draft-melnikov-smime-msa-to-mda] snews NNTP over SSL/TLS Historical - [RFC5538] snmp Simple Network Management Protocol Permanent - [RFC4088] soap.beep soap.beep Permanent - [RFC4227] soap.beeps soap.beeps Permanent - [RFC4227] soldat prov/soldat soldat Provisional - [Dave_Thaler] spiffe prov/spiffe spiffe Provisional - [Evan_Gilman] spotify prov/spotify spotify Provisional - [Dave_Thaler] ssb prov/ssb ssb Provisional - [Frédéric_Wang][Secure_Scuttlebutt_Consortium] ssh prov/ssh ssh Provisional - [Dave_Thaler] starknet prov/starknet starknet Provisional - [Abraham_Makovetsky] steam prov/steam steam Provisional - [Dave_Thaler] stun stun Permanent - [RFC7064] stuns stuns Permanent - [RFC7064] submit prov/submit submit Provisional - [draft-melnikov-smime-msa-to-mda] svn prov/svn svn Provisional - [Dave_Thaler] swh prov/swh swh Provisional - [Software_Heritage][Stefano_Zacchiroli] swid prov/swid swid (see [reviewer notes]) Provisional - [RFC9393, Section 5.1] swidpath prov/swidpath swidpath (see [reviewer notes]) Provisional - [RFC9393, Section 5.2] tag tag Permanent - [RFC4151] taler prov/taler taler Provisional - [draft-grothoff-taler-01] teamspeak prov/teamspeak teamspeak Provisional - [Dave_Thaler] tel telephone Permanent - [RFC3966][RFC5341] teliaeid prov/teliaeid teliaeid Provisional - [Peter_Lewandowski] telnet Reference to interactive sessions Permanent - [RFC4248] tftp Trivial File Transfer Protocol Permanent - [RFC3617] things prov/things things Provisional - [Dave_Thaler] thismessage perm/thismessage multipart/related relative reference Permanent - [RFC2557] resolution tip Transaction Internet Protocol Permanent - [RFC2371] tn3270 Interactive 3270 emulation sessions Permanent - [RFC6270] tool prov/tool tool Provisional - [Matthias_Merkel] turn turn Permanent - [RFC7065] turns turns Permanent - [RFC7065] tv TV Broadcasts Permanent - [RFC2838] udp prov/udp udp Provisional - [Dave_Thaler] unreal prov/unreal unreal Provisional - [Dave_Thaler] upt historic/upt upt Historical - [IESG] urn Uniform Resource Names Permanent - [RFC8141][IANA registry urn-namespaces] ut2004 prov/ut2004 ut2004 Provisional - [Dave_Thaler] uuid-in-package prov/uuid-in-package uuid-in-package Provisional - [Kunihiko_Sakamoto] v-event prov/v-event v-event Provisional - [draft-menderico-v-event-uri] vemmi versatile multimedia interface Permanent - [RFC2122] ventrilo prov/ventrilo ventrilo Provisional - [Dave_Thaler] ves prov/ves ves Provisional - [Jim_Zubov] videotex historic/videotex videotex Historical - [draft-mavrakis-videotex-url-spec][RFC2122][RFC3986] vnc Remote Framebuffer Protocol Permanent - [RFC7869] view-source prov/view-source view-source Provisional - [Mykyta_Yevstifeyev] vscode prov/vscode vscode Provisional - [urischemeowners_at_microsoft.com] vscode-insiders prov/vscode-insiders vscode-insiders Provisional - [urischemeowners_at_microsoft.com] vsls prov/vsls vsls Provisional - [urischemeowners_at_microsoft.com] w3 prov/w3 w3 (see [reviewer notes]) Provisional - [Qi_Zhou] wais Wide Area Information Servers Historical - [RFC4156] web3 prov/web3 web3 Provisional - [Qi_Zhou] wcr prov/wcr wcr Provisional - [Jason_Dzubak] webcal prov/webcal webcal Provisional - [Dave_Thaler] web+ap prov/web+ap web+ap Provisional - [Soni_L.] wifi prov/wifi wifi Provisional - [Wi-Fi_Alliance][Jun_Tian] wpid prov/wpid wpid Historical - [Eld_Zierau] ws WebSocket connections Permanent [RFC8307] [RFC6455] wss Encrypted WebSocket connections Permanent [RFC8307] [RFC6455] wtai prov/wtai wtai Provisional - [Dave_Thaler] wyciwyg prov/wyciwyg wyciwyg Provisional - [Dave_Thaler] xcon xcon Permanent - [RFC6501] xcon-userid xcon-userid Permanent - [RFC6501] xfire prov/xfire xfire Provisional - [Dave_Thaler] xmlrpc.beep xmlrpc.beep Permanent - [RFC3529] xmlrpc.beeps xmlrpc.beeps Permanent - [RFC3529] xmpp Extensible Messaging and Presence Permanent - [RFC5122] Protocol xftp prov/xftp xftp Provisional - [Evgeny_Poberezkin] xrcp prov/xrcp xrcp Provisional - [Evgeny_Poberezkin] xri prov/xri xri Provisional - [Dave_Thaler] ymsgr prov/ymsgr ymsgr Provisional - [Dave_Thaler] z39.50 Z39.50 information access Historical - [RFC1738][RFC2056] z39.50r Z39.50 Retrieval Permanent - [RFC2056] z39.50s Z39.50 Session Permanent - [RFC2056] Contact Information ID Name Organization Contact URI Last Updated [Abraham_Makovetsky] Abraham Makovetsky mailto:abraham&braavos.app 2023-01-05 [Adam_Barth] Adam Barth mailto:abarth&google.com 2019-03-29 [Adam_Langley] Adam Langley mailto:agl&google.com 2021-09-03 [Alastair_Green] Alastair Green mailto:alastair.green&neotechnology.com. 2017-05-19 [Alex_Grintsvayg] Alex Grintsvayg mailto:grin&lbry.com 2020-06-16 [Alexey_Melnikov] Alexey Melnikov mailto:alexey.melnikov&isode.com 2012-09-12 [Alexander_Shishenko] Alexander Shishenko mailto:alex&librevault.com 2016-06-13 [Antonio_Walker] Antonio Walker mailto:any&wakuu.enterprises 2024-02-02 [Arild_Hegvik] Arild Hegvik mailto:arild&bitcoincheque.org 2020-01-08 [ARK_agency] ARK Maintenance Agency mailto:marioxcc.mt&yandex.com 2019-08-22 [Arweave_Team] Arweave Team mailto:sam&arweave.org 2021-08-23 [Bíró_Tamás] Bíró Tamás mailto:tamas.biro&sensenet.com 2014-05-16 [Bluesky_PBLLC] Bluesky PBLLC mailto:protocol&blueskyweb.xyz 2023-06-01 [Bob_Hinkle] Bob Hinkle mailto:bohinkle&cisco.com 2019-06-24 [Bob_Van_Zant] Bob Van Zant mailto:bob&veznat.com 2011-11-14 [Bradley_Nelson] Bradley Nelson mailto:bradnelson&google.com 2020-08-28 [Cabal_Club] Cabal Club mailto:cabal&cblgh.org 2020-05-14 [Chris_Rebert] Chris Rebert mailto:iana.url.schemes&chrisrebert.com 2015-07-21 [Christophe_Meessen] Christophe Meessen mailto:uri-review&ditp.org 2015-12-08 [Clemens_Bastian] Clemens Bastian mailto:clemens.bastian&orgaplan.org 2021-07-21 Connectivity [Connectivity_Standards_Alliance] Standards https://csa-iot.org/ 2023-01-20 Alliance [Corentin_Mercier] Corentin Mercier mailto:corentin&mercier.link 2018-08-13 [Dave_Thaler] Dave Thaler mailto:dthalerµsoft.com 2022-08-09 [David_Keaton] David Keaton mailto:dmk&dmk.com 2021-03-19 [Dennis_Schubert] Dennis Schubert mailto:mail&dennis-schubert.de 2017-09-13 [DLNA] DLNA mailto:admin&dlna.org 2012-01-04 [Hans-Dieter_A._Hiep] Hans-Dieter A. Hiep mailto:hdh&cwi.nl 2022-11-09 [Donald_Eastlake] Donald Eastlake mailto:d3e3e3&gmail.com 2021-07-01 [Ed_Warnicke] Ed Warnicke mailto:eaw&cisco.com 2022-05-23 [Eld_Zierau] Eld Zierau mailto:elzi&kb.dk 2016-12-01 [Elliott_Brown] Elliott Brown mailto:elliott.brown&num.uk 2020-09-07 [eSIM_Group_GSM_Association] eSIM Group, GSM mailto:URIregistration&gsma.com 2022-11-11 Associationn [Evan_Gilman] Evan Gilman mailto:evan&scytale.io 2018-02-23 [Evgeny_Poberezkin] Evgeny Poberezkin mailto:ep&simplex.chat 2024-01-12 [Frédéric_Wang] Frédéric Wang mailto:fwang&igalia.com 2020-05-14 [Gaurav_Jain] Gaurav Jain mailto:gjain&wi-fi.org 2019-01-23 [Hubert_Chathi] Hubert Chathi mailto:hubertc&matrix.org 2022-09-05 [IESG] IESG mailto:iesg&ietf.org [Ignacio_Losiggio] Ignacio Losiggio mailto:iglosiggio&gmail.com 2017-05-09 [International_DOI_Foundation] International DOI mailto:contact&doi.org 2020-05-14 Foundation [IS4] IS4 mailto:is4.site&gmail.com 2023-08-21 [Ivan_Herman] Ivan Herman mailto:ivan&w3.org 2020-02-14 [James_Cramer] James Cramer mailto:jcramer&deskviz.com 2018-07-27 [Jan_Pokorny] Jan Pokorny mailto:jpokorny&redhat.com 2016-09-20 [Jarmo_Miettinen] Jarmo_Miettinen mailto:jarmo.miettinen&methics.fi 2019-02-12 [Jason_Dzubak] Jason Dzubak mailto:dzubak&byu.edu 2020-12-10 [Jim_Zubov] Jim Zubov mailto:jz&vesvault.com 2021-12-21 [Joe_Hildebrand] Joe Hildebrand mailto:jhildebrand&mozilla.com 2017-01-20 [Josh_Mandel] Josh Mandel mailto:Joshua.Mandel&childrens.harvard.edu 2021-05-11 [Jun_Tian] Jun Tian mailto:jtian&wi-fi.org 2020-08-26 [Jürgen_Grupp] Jürgen Grupp mailto:juergen.grupp&swr.de 2023-11-28 [Kimmo_Lindholm] Kimmo Lindholm mailto:kimmo.lindholm&eke.fi 2018-06-06 [Kunihiko_Sakamoto] Kunihiko Sakamoto mailto:ksakamoto&google.com 2021-09-22 [ligi] ligi mailto:ligi&ligi.de 2020-05-15 [Manu_Sporny] Manu Sporny mailto:msporny&digitalbazaar.com 2020-02-14 [Mark_Chen] Mark Chen mailto:marchen&cisco.com 2019-06-24 [Matthias_Merkel] Matthias Merkel mailto:moritz30&moritz30.de 2017-03-14 OpenID Foundation [OpenID_Foundation_Artifact_Binding_Working_Group] Artifact Binding mailto:openid-specs-ab&lists.openid.net 2023-08-16 Working Group [Michael_C_Fanning] Michael C. Fanning mailto:mikefanµsoft.com 2021-03-19 [Michael_Hedenus] Michael Hedenus mailto:michael.hedenus&vitesco.com 2021-09-24 [Michael_Ranft] Michael Ranft mailto:Michael.Ranft&swr.de 2023-11-28 [Mike_Pietraszak] Mike Pietraszak mailto:mikepieµsoft.com 2016-10-17 [Mirko_Nosenzo] Mirko Nosenzo mailto:mirko.n&incomedia.eu 2013-09-20 [Mongo_DB_Inc] Mongo DB, Inc https://www.mongodb.com/es/contact 2017-05-09 [Mykyta_Yevstifeyev] Mykyta Yevstifeyev mailto:evnikita2&gmail.com 2011-05-25 [OASIS_Open] OASIS Open https://www.oasis-open.org 2021-03-19 OMA-DMSE – Device [OMA-DMSE] Management Working mailto:OMA-DM&mail.openmobilealliance.org 2019-04-16 Group at the Open Mobile Alliance OMNA – Open Mobile [OMA-OMNA] Naming Authority of mailto:OMA-OMNA&mail.openmobilealliance.org 2014-12-19 the Open Mobile Alliance [Paul_Frazee] Paul Frazee mailto:pfrazee&gmail.com 2023-06-01 [Peter_Hoddie] Peter Hoddie mailto:peter&moddable.com 2021-02-19 [Peter_Lewandowski] Peter Lewandowski mailto:peter.lewandowski&cygate.se 2014-09-12 [Peter_Saint-Andre] Peter Saint-Andre mailto:stpeter&jabber.org 2012-12-04 [Peter_Waher] Peter Waher mailto:peterwaher&hotmail.com 2015-11-25 [Protocol_Labs] Protocol Labs mailto:jbenet&protocol.ai 2020-05-14 [Qi_Zhou] Qi Zhou mailto:qizhou&web3q.io 2023-04-17 [RadioDNS_Project] RadioDNS Project mailto:iana&radiodns.org 2019-03-18 [Ricky_Bloomfield] Ricky Bloomfield mailto:rickybloomfield&apple.com 2020-08-28 [SAP_SE] SAP SE mailto:ma.becker&sap.com 2019-07-04 [Secure_Scuttlebutt_Consortium] Secure Scuttlebutt mailto:christianbundy&fraction.io 2020-05-15 Consortium [Software_Heritage] Software Heritage https://www.softwareheritage.org 2020-04-28 [Soni_L.] Soni L. mailto:fakedme&gmail.com 2023-01-09 [Sophie_Schenkel] Sophie Schenkel mailto:Sophie.Schenkel&dra.de 2023-11-28 [Stefano_Zacchiroli] Stefano Zacchiroli mailto:zack&upsilon.cc 2020-04-28 [Thomas_Habets] Thomas Habets mailto:thomas&habets.se 2020-05-14 [Tony_Deng] Tony Deng mailto:tdeng&cisco.com 2019-06-24 [Tuan_Hoang] Tuan Hoang mailto:tuhoang&cisco.com 2019-06-24 [urischemeowners_at_microsoft.com] urischemeowners at mailto:urischemeownersµsoft.com 2023-05-23 microsoft.com [Wang_Shu] Wang Shu mailto:wangshu&cnic.cn 2022-05-13 [W3C_WebApps_Working_Group] W3C WebApps Working mailto:public-webapps&w3.org 2015-07-17 Group W3C Decentralized [W3C_Decentralized_Identifier_Working_Group] Identifier Working mailto:public-did-wg&w3.org 2020-02-14 Group [Wiktor_Kwapisiewicz] Wiktor Kwapisiewicz mailto:wiktor&metacode.biz 2018-05-31 [Wi-Fi_Alliance] Wi-Fi Alliance mailto:technical&wi-fi.org 2020-08-26 Licensing Terms