Well-known ports (IANA registry)

IANA System Ports (0–1023) from the IANA Service Name and Transport Protocol Port Number Registry, one document per port with an assigned service name. Each lists the registered service names, transport protocols, descriptions, and references as IANA records them.

Browse 686 documents Use with your agent

Documents

Showing 49–72 of 686 documents

Document	Version
Port 142 (bl-idm) Port 142 is an IANA System Port assigned to bl-idm (Britton-Lee IDM) over TCP and UDP.	v1
Port 143 (imap) Port 143 is an IANA System Port assigned to imap (Internet Message Access Protocol) over TCP.	v1
Port 144 (uma) Port 144 is an IANA System Port assigned to uma (Universal Management Architecture) over TCP and UDP.	v1
Port 145 (uaac) Port 145 is an IANA System Port assigned to uaac (UAAC Protocol) over TCP and UDP.	v1
Port 146 (iso-tp0) Port 146 is an IANA System Port assigned to iso-tp0 (ISO-IP0) over TCP and UDP.	v1
Port 147 (iso-ip) Port 147 is an IANA System Port assigned to iso-ip (ISO-IP) over TCP and UDP.	v1
Port 148 (jargon) Port 148 is an IANA System Port assigned to jargon (Jargon) over TCP and UDP.	v1
Port 149 (aed-512) Port 149 is an IANA System Port assigned to aed-512 (AED 512 Emulation Service) over TCP and UDP.	v1
Port 150 (sql-net) Port 150 is an IANA System Port assigned to sql-net (SQL-NET) over TCP and UDP.	v1
Port 151 (hems) Port 151 is an IANA System Port assigned to hems (HEMS) over TCP and UDP.	v1
Port 152 (bftp) Port 152 is an IANA System Port assigned to bftp (Background File Transfer Program) over TCP and UDP.	v1
Port 153 (sgmp) Port 153 is an IANA System Port assigned to sgmp (SGMP) over TCP and UDP.	v1
Port 154 (netsc-prod) Port 154 is an IANA System Port assigned to netsc-prod (NETSC) over TCP and UDP.	v1
Port 155 (netsc-dev) Port 155 is an IANA System Port assigned to netsc-dev (NETSC) over TCP and UDP.	v1
Port 156 (sqlsrv) Port 156 is an IANA System Port assigned to sqlsrv (SQL Service) over TCP and UDP.	v1
Port 157 (knet-cmp) Port 157 is an IANA System Port assigned to knet-cmp (KNET/VM Command/Message Protocol) over TCP and UDP.	v1
Port 158 (pcmail-srv) Port 158 is an IANA System Port assigned to pcmail-srv (PCMail Server) over TCP and UDP.	v1
Port 159 (nss-routing) Port 159 is an IANA System Port assigned to nss-routing (NSS-Routing) over TCP and UDP.	v1
Port 160 (sgmp-traps) Port 160 is an IANA System Port assigned to sgmp-traps (SGMP-TRAPS) over TCP and UDP.	v1
Port 161 (snmp) Port 161 is an IANA System Port assigned to snmp (SNMP) over TCP and UDP.	v1
Port 162 (snmptrap) Port 162 is an IANA System Port assigned to snmptrap (SNMPTRAP) over TCP and UDP.	v1
Port 163 (cmip-man) Port 163 is an IANA System Port assigned to cmip-man (CMIP/TCP Manager) over TCP and UDP.	v1
Port 164 (cmip-agent) Port 164 is an IANA System Port assigned to cmip-agent (CMIP/TCP Agent) over TCP and UDP.	v1
Port 165 (xns-courier) Port 165 is an IANA System Port assigned to xns-courier (Xerox) over TCP and UDP.	v1

Source, review, and usage

Published on Koskamo by: Koskamo
Version: 687
Documents: 686 documents
Reviewed: 2026-10-04
Last approved change: 2026-10-04
Agent lookups: 2 in the last 90 days
Reuse: IANA Service Name and Transport Protocol Port Number Registry (iana.org/assignments/service-names-port-numbers), system ports 0-1023; registry data reproduced verbatim with references
Review status: Published by Koskamo; proposed revisions require Koskamo approval

Original sources are linked on each document. Owner approval records a publishing decision; it does not imply independent fact checking.

Use this dataset from an agent

Agents can query it without an account. POST to /api/v1/retrieve, or connect an MCP client and call koskamo_retrieve with dataset: "well-known-ports".

Set up your agent Read documents as JSON

The JSON endpoint returns document text and source links in pages. Use limit and offset to retrieve more records; total gives the dataset size.

retrieve request

curl --fail-with-body 'https://koskamo.com/api/v1/retrieve' -H 'Content-Type: application/json' --data-raw '{"query":"well-known-ports","dataset":"well-known-ports","top_k":3}'

Change history

Every change that reached this dataset. Proposals from contributors land only after Koskamo approves them.

Published by Koskamo2026-10-04
Port 1022 (exp2) · v1
Published by Koskamo2026-10-04
Port 1021 (exp1) · v1
Published by Koskamo2026-10-04
Port 1010 (surf) · v1
Published by Koskamo2026-10-04
Port 1001 (webpush) · v1
Published by Koskamo2026-10-04
Port 1000 (cadlock2) · v1
Published by Koskamo2026-10-04
Port 999 (garcon, applix, puprouter) · v1
Published by Koskamo2026-10-04
Port 998 (busboy, puparp) · v1
Published by Koskamo2026-10-04
Port 997 (maitrd) · v1
Published by Koskamo2026-10-04
Port 996 (vsinet) · v1
Published by Koskamo2026-10-04
Port 995 (pop3s) · v1