Service Name and Transport Protocol Port Number Registry

Last Updated
2015-08-18
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, 
Lars Eggert, Alexey Melnikov, Wes Eddy, and Alexander Zimmermann
SCTP: Allison Mankin and Michael Tuexen
DCCP: Eddie Kohler and Yoshifumi Nishida
Reference
[RFC6335]
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 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:                                           *
*                                                                      *
* 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.                                                   *
************************************************************************
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Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Known Unauthorized Uses Assignment Notes
br-sat-mon Backroom SATNET Monitoring
cftp CFTP
chaos CHAOS Protocol
clock DCNET Time Server Protocol
cmot Common Mgmnt Info Ser and Prot over TCP/IP
cookie-jar Authentication Scheme
dcn-meas DCN Measurement Subsystems Protocol
dgp Dissimilar Gateway Protocol
dmf-mail Digest Message Format for Mail
egp Exterior Gateway Protocol
ehf-mail Encoding Header Field for Mail
emcon Emission Control Protocol
fconfig Fujitsu Config Protocol
ggp Gateway Gateway Protocol
hmp Host Monitoring Protocol
host2-ns Host2 Name Server
icmp Internet Control Message Protocol
igmp Internet Group Management Protocol
igp Interior Gateway Protocol
imap2 Interim Mail Access Protocol version 2
ip Internet Protocol
ipcu Internet Packet Core Utility
ippc Internet Pluribus Packet Core
ip-arc Internet Protocol on ARCNET
ip-arpa Internet Protocol on ARPANET
ip-cmprs Compressing TCP/IP Headers
ip-dc Internet Protocol on DC Networks
ip-dvmrp Distance Vector Multicast Routing Protocol
ip-e Internet Protocol on Ethernet Networks
ip-ee Internet Protocol on Exp. Ethernet Nets
ip-fddi Transmission of IP over FDDI
ip-hc Internet Protocol on Hyperchannnel
ip-ieee Internet Protocol on IEEE 802
ip-ipx Transmission of 802.2 over IPX Networks
ip-mtu IP MTU Discovery Options
ip-netbios Internet Protocol over NetBIOS Networks
ip-slip Transmission of IP over Serial Lines
ip-wb Internet Protocol on Wideband Network
ip-x25 Internet Protocol on X.25 Networks
irtp Internet Reliable Transaction Protocol
iso-tp4 ISO Transport Protocol Class 4
larp Locus Address Resoultion Protocol
leaf-1 Leaf-1 Protocol
leaf-2 Leaf-2 Protocol
loc-srv Location Service
mail Format of Electronic Mail Messages
merit-inp MERIT Internodal Protocol
mib Management Information Base
mihcs MIH Command Services [RFC5679]
mihes MIH Event Services [RFC5679]
mihis MIH Information Services [RFC5679]
mfe-nsp MFE Network Services Protocol
mit-subnet MIT Subnet Support
mux Multiplexing Protocol
netblt Bulk Data Transfer Protocol
neted Network Standard Text Editor
netrjs Remote Job Service
nfile A File Access Protocol
nvp-ii Network Voice Protocol
ospf Open Shortest Path First Interior GW Protocol
pcmail Pcmail Transport Protocol
ppp Point-to-Point Protocol
prm Packet Radio Measurement
pup PUP Protocol
quote Quote of the Day Protocol
rarp A Reverse Address Resolution Protocol
ratp Reliable Asynchronous Transfer Protocol
rdp Reliable Data Protocol
rip Routing Information Protocol
rvd Remote Virtual Disk Protocol
sat-expak Satnet and Backroom EXPAK
sat-mon SATNET Monitoring
smi Structure of Management Information
stp Stream Protocol
sun-rpc SUN Remote Procedure Call
tcp Transmission Control Protocol
tcp-aco TCP Alternate Checksum Option
thinwire Thinwire Protocol
tp-tcp ISO Transport Service on top of the TCP
trunk-1 Trunk-1 Protocol
trunk-2 Trunk-2 Protocol
ucl University College London Protocol
udp User Datagram Protocol
users Active Users Protocol
via-ftp VIA Systems-File Transfer Protocol
visa VISA Protocol
vmtp Versatile Message Transaction Protocol
wb-expak Wideband EXPAK
wb-mon Wideband Monitoring
xnet Cross Net Debugger
xns-idp Xerox NS IDP
1password 1Password Password Manager data sharing and synchronization protocol [Roustem_Karimov] [Roustem_Karimov] Defined TXT keys: None
a-d-sync Altos Design Synchronization protocol [David_Lasker] [David_Lasker] Defined TXT keys: None
abi-instrument Applied Biosystems Universal Instrument Framework [Tor_Slettnes] [Tor_Slettnes] Defined TXT keys: product=<short product name/model> description=<readable name> version=<firmware/instrument controller version>
accessdata-f2d FTK2 Database Discovery Service [Rick_Russell] [Rick_Russell] Defined TXT keys: Proprietary
accessdata-f2w FTK2 Backend Processing Agent Service [Rick_Russell] [Rick_Russell] Defined TXT keys: Proprietary
accessone Strix Systems 5S/AccessOne protocol [Scott_Herscher_2] [Scott_Herscher_2] Defined TXT keys: None
accountedge MYOB AccountEdge Defined TXT keys: None
acrobatsrv Adobe Acrobat Defined TXT keys: type, path, FeedType
acs-ctl-ds tcp Access Control Device [Honwywell_Security_Group] [John_Dziadosz] 2012-04-09 Defined TXT keys: MAC=, GW-MAC
acs-ctl-ds udp Access Control Device [Honwywell_Security_Group] [John_Dziadosz] 2012-04-09 Defined TXT keys: MAC=, GW-MAC

People

ID Name Organization Contact URI Last Updated
[David_Lasker] David Lasker mailto:dave&altosdesign.com
[Honwywell_Security_Group] Honwywell Security Group mailto:john.dziadosz&honeywell.com 2012-04-09
[John_Dziadosz] John Dziadosz Honwywell Security Group mailto:john.dziadosz&honeywell.com 2012-04-09
[Rick_Russell] Rick Russell mailto:rrussell&accessdata.com
[Roustem_Karimov] Roustem Karimov mailto:roustem&agilewebsolutions.com
[Scott_Herscher_2] Scott Herscher mailto:scott&strixsystems.com
[Tor_Slettnes] Tor Slettnes mailto:slettntn&appliedbiosystems.com