TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov, Wes Eddy, Alexander Zimmermann, Brian Trammell, and Jana Iyengar SCTP: Allison Mankin and Michael Tuexen DCCP: Eddie Kohler and Yoshifumi Nishida
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]. According to Section 8.1.2 of [RFC6335], System Ports are assigned by the "IETF Review" or "IESG Approval" procedures described in [RFC8126]. 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. * ************************************************************************
Service Name | Port Number | Transport Protocol | Description | Assignee | Contact | Registration Date | Modification Date | Reference | Service Code | Unauthorized Use Reported | Assignment Notes |
---|---|---|---|---|---|---|---|---|---|---|---|
bl-idm | 142 | tcp | Britton-Lee IDM | [Susie_Snitzer] | [Susie_Snitzer] | ||||||
bl-idm | 142 | udp | Britton-Lee IDM | [Susie_Snitzer] | [Susie_Snitzer] | ||||||
imap | 143 | tcp | Internet Message Access Protocol | [IESG] | [IETF_Chair] | 2021-02-22 | [RFC3501][RFC-ietf-extra-imap4rev2-30] | ||||
143 | udp | Reserved | 2021-02-22 | [RFC-ietf-extra-imap4rev2-30] | |||||||
uma | 144 | tcp | Universal Management Architecture | [Jay_Whitney] | [Jay_Whitney] | ||||||
uma | 144 | udp | Universal Management Architecture | [Jay_Whitney] | [Jay_Whitney] | ||||||
uaac | 145 | tcp | UAAC Protocol | [David_A_Gomberg] | [David_A_Gomberg] | ||||||
uaac | 145 | udp | UAAC Protocol | [David_A_Gomberg] | [David_A_Gomberg] | ||||||
iso-tp0 | 146 | tcp | ISO-IP0 | ||||||||
iso-tp0 | 146 | udp | ISO-IP0 | ||||||||
iso-ip | 147 | tcp | ISO-IP | [Marshall_Rose] | [Marshall_Rose] | ||||||
iso-ip | 147 | udp | ISO-IP | [Marshall_Rose] | [Marshall_Rose] | ||||||
jargon | 148 | tcp | Jargon | [Bill_Weinman] | [Bill_Weinman] | ||||||
jargon | 148 | udp | Jargon | [Bill_Weinman] | [Bill_Weinman] | ||||||
aed-512 | 149 | tcp | AED 512 Emulation Service | [Albert_G_Broscius] | [Albert_G_Broscius] | ||||||
aed-512 | 149 | udp | AED 512 Emulation Service | [Albert_G_Broscius] | [Albert_G_Broscius] | ||||||
sql-net | 150 | tcp | SQL-NET | [Martin_Picard] | [Martin_Picard] | ||||||
sql-net | 150 | udp | SQL-NET | [Martin_Picard] | [Martin_Picard] | ||||||
hems | 151 | tcp | HEMS | ||||||||
hems | 151 | udp | HEMS | ||||||||
bftp | 152 | tcp | Background File Transfer Program | [Annette_DeSchon] | [Annette_DeSchon] | ||||||
bftp | 152 | udp | Background File Transfer Program | [Annette_DeSchon] | [Annette_DeSchon] | ||||||
sgmp | 153 | tcp | SGMP | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
sgmp | 153 | udp | SGMP | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
netsc-prod | 154 | tcp | NETSC | ||||||||
netsc-prod | 154 | udp | NETSC | ||||||||
netsc-dev | 155 | tcp | NETSC | [Sergio_Heker] | [Sergio_Heker] | ||||||
netsc-dev | 155 | udp | NETSC | [Sergio_Heker] | [Sergio_Heker] | ||||||
sqlsrv | 156 | tcp | SQL Service | [Craig_Rogers] | [Craig_Rogers] | ||||||
sqlsrv | 156 | udp | SQL Service | [Craig_Rogers] | [Craig_Rogers] | ||||||
knet-cmp | 157 | tcp | KNET/VM Command/Message Protocol | [Gary_S_Malkin] | [Gary_S_Malkin] | ||||||
knet-cmp | 157 | udp | KNET/VM Command/Message Protocol | [Gary_S_Malkin] | [Gary_S_Malkin] | ||||||
pcmail-srv | 158 | tcp | PCMail Server | [Mark_L_Lambert] | [Mark_L_Lambert] | ||||||
pcmail-srv | 158 | udp | PCMail Server | [Mark_L_Lambert] | [Mark_L_Lambert] | ||||||
nss-routing | 159 | tcp | NSS-Routing | [Yakov_Rekhter] | [Yakov_Rekhter] | ||||||
nss-routing | 159 | udp | NSS-Routing | [Yakov_Rekhter] | [Yakov_Rekhter] | ||||||
sgmp-traps | 160 | tcp | SGMP-TRAPS | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
sgmp-traps | 160 | udp | SGMP-TRAPS | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
snmp | 161 | tcp | SNMP | ||||||||
snmp | 161 | udp | SNMP | ||||||||
snmptrap | 162 | tcp | SNMPTRAP | [Marshall_Rose] | [Marshall_Rose] | ||||||
snmptrap | 162 | udp | SNMPTRAP | [Marshall_Rose] | [Marshall_Rose] | ||||||
cmip-man | 163 | tcp | CMIP/TCP Manager | ||||||||
cmip-man | 163 | udp | CMIP/TCP Manager | ||||||||
cmip-agent | 164 | tcp | CMIP/TCP Agent | [Amatzia_Ben_Artzi] | [Amatzia_Ben_Artzi] | ||||||
cmip-agent | 164 | udp | CMIP/TCP Agent | [Amatzia_Ben_Artzi] | [Amatzia_Ben_Artzi] | ||||||
xns-courier | 165 | tcp | Xerox | [Susie_Armstrong_2] | [Susie_Armstrong_2] | ||||||
xns-courier | 165 | udp | Xerox | [Susie_Armstrong_2] | [Susie_Armstrong_2] | ||||||
s-net | 166 | tcp | Sirius Systems | [Brian_Lloyd] | [Brian_Lloyd] | ||||||
s-net | 166 | udp | Sirius Systems | [Brian_Lloyd] | [Brian_Lloyd] | ||||||
namp | 167 | tcp | NAMP | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
namp | 167 | udp | NAMP | [Marty_Schoffstahl] | [Marty_Schoffstahl] | ||||||
rsvd | 168 | tcp | RSVD | [Alan_Sandell] | [Alan_Sandell] | 2008-05-01 | |||||
rsvd | 168 | udp | RSVD | [Alan_Sandell] | [Alan_Sandell] | 2008-05-01 | |||||
send | 169 | tcp | SEND | [William_Oldwin] | [William_Oldwin] | 2019-04-22 | |||||
send | 169 | udp | SEND | [William_Oldwin] | [William_Oldwin] | 2019-04-22 | |||||
print-srv | 170 | tcp | Network PostScript | [Brian_Reid] | [Brian_Reid] | ||||||
print-srv | 170 | udp | Network PostScript | [Brian_Reid] | [Brian_Reid] | ||||||
multiplex | 171 | tcp | Network Innovations Multiplex | ||||||||
multiplex | 171 | udp | Network Innovations Multiplex | ||||||||
cl-1 | 172 | tcp | Network Innovations CL/1 IANA assigned this well-formed service name as a replacement for "cl/1". |
[Kevin_DeVault] | [Kevin_DeVault] | ||||||
cl/1 | 172 | tcp | Network Innovations CL/1 | [Kevin_DeVault] | [Kevin_DeVault] | This entry is an alias to "cl-1". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
cl-1 | 172 | udp | Network Innovations CL/1 IANA assigned this well-formed service name as a replacement for "cl/1". |
[Kevin_DeVault] | [Kevin_DeVault] | ||||||
cl/1 | 172 | udp | Network Innovations CL/1 | [Kevin_DeVault] | [Kevin_DeVault] | This entry is an alias to "cl-1". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
xyplex-mux | 173 | tcp | Xyplex | [Bob_Stewart] | [Bob_Stewart] | ||||||
xyplex-mux | 173 | udp | Xyplex | [Bob_Stewart] | [Bob_Stewart] | ||||||
mailq | 174 | tcp | MAILQ | [Rayan_Zachariassen] | [Rayan_Zachariassen] | ||||||
mailq | 174 | udp | MAILQ | [Rayan_Zachariassen] | [Rayan_Zachariassen] | ||||||
vmnet | 175 | tcp | VMNET | [Christopher_Tengi] | [Christopher_Tengi] | ||||||
vmnet | 175 | udp | VMNET | [Christopher_Tengi] | [Christopher_Tengi] | ||||||
genrad-mux | 176 | tcp | GENRAD-MUX | [Ron_Thornton] | [Ron_Thornton] | ||||||
genrad-mux | 176 | udp | GENRAD-MUX | [Ron_Thornton] | [Ron_Thornton] | ||||||
xdmcp | 177 | tcp | X Display Manager Control Protocol | [Robert_W_Scheifler] | [Robert_W_Scheifler] | ||||||
xdmcp | 177 | udp | X Display Manager Control Protocol | [Robert_W_Scheifler] | [Robert_W_Scheifler] | ||||||
nextstep | 178 | tcp | NextStep Window Server | [Leo_Hourvitz] | [Leo_Hourvitz] | ||||||
nextstep | 178 | udp | NextStep Window Server | [Leo_Hourvitz] | [Leo_Hourvitz] | ||||||
bgp | 179 | tcp | Border Gateway Protocol | [Kirk_Lougheed] | [Kirk_Lougheed] | ||||||
bgp | 179 | udp | Border Gateway Protocol | [Kirk_Lougheed] | [Kirk_Lougheed] | ||||||
bgp | 179 | sctp | BGP | [Randall_Stewart] | [Randall_Stewart] | [RFC4960] | |||||
ris | 180 | tcp | Intergraph | [Dave_Buehmann] | [Dave_Buehmann] | ||||||
ris | 180 | udp | Intergraph | [Dave_Buehmann] | [Dave_Buehmann] | ||||||
unify | 181 | tcp | Unify | [Daegis_Inc] | [Chris_Anderson] | 2012-07-31 | |||||
unify | 181 | udp | Unify | [Daegis_Inc] | [Chris_Anderson] | 2012-07-31 | |||||
audit | 182 | tcp | Unisys Audit SITP | [Gil_Greenbaum] | [Gil_Greenbaum] | ||||||
audit | 182 | udp | Unisys Audit SITP | [Gil_Greenbaum] | [Gil_Greenbaum] | ||||||
ocbinder | 183 | tcp | OCBinder | ||||||||
ocbinder | 183 | udp | OCBinder | ||||||||
ocserver | 184 | tcp | OCServer | [Jerrilynn_Okamura] | [Jerrilynn_Okamura] | ||||||
ocserver | 184 | udp | OCServer | [Jerrilynn_Okamura] | [Jerrilynn_Okamura] | ||||||
remote-kis | 185 | tcp | Remote-KIS | ||||||||
remote-kis | 185 | udp | Remote-KIS | ||||||||
kis | 186 | tcp | KIS Protocol | [Ralph_Droms] | [Ralph_Droms] | ||||||
kis | 186 | udp | KIS Protocol | [Ralph_Droms] | [Ralph_Droms] | ||||||
aci | 187 | tcp | Application Communication Interface | [Rick_Carlos] | [Rick_Carlos] | ||||||
aci | 187 | udp | Application Communication Interface | [Rick_Carlos] | [Rick_Carlos] | ||||||
mumps | 188 | tcp | Plus Five's MUMPS | [Hokey_Stenn] | [Hokey_Stenn] | ||||||
mumps | 188 | udp | Plus Five's MUMPS | [Hokey_Stenn] | [Hokey_Stenn] | ||||||
qft | 189 | tcp | Queued File Transport | [Wayne_Schroeder] | [Wayne_Schroeder] | ||||||
qft | 189 | udp | Queued File Transport | [Wayne_Schroeder] | [Wayne_Schroeder] | ||||||
gacp | 190 | tcp | Gateway Access Control Protocol | [C_Philip_Wood] | [C_Philip_Wood] | ||||||
gacp | 190 | udp | Gateway Access Control Protocol | [C_Philip_Wood] | [C_Philip_Wood] |