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 241–264 of 686 documents

Document	Version
Port 391 (synotics-relay) Port 391 is an IANA System Port assigned to synotics-relay (SynOptics SNMP Relay Port) over TCP and UDP.	v1
Port 392 (synotics-broker) Port 392 is an IANA System Port assigned to synotics-broker (SynOptics Port Broker Port) over TCP and UDP.	v1
Port 393 (meta5) Port 393 is an IANA System Port assigned to meta5 (Meta5) over TCP and UDP.	v1
Port 394 (embl-ndt) Port 394 is an IANA System Port assigned to embl-ndt (EMBL Nucleic Data Transfer) over TCP and UDP.	v1
Port 395 (netcp) Port 395 is an IANA System Port assigned to netcp (NetScout Control Protocol) over TCP and UDP.	v1
Port 396 (netware-ip) Port 396 is an IANA System Port assigned to netware-ip (Novell Netware over IP) over TCP and UDP.	v1
Port 397 (mptn) Port 397 is an IANA System Port assigned to mptn (Multi Protocol Trans. Net.) over TCP and UDP.	v1
Port 398 (kryptolan) Port 398 is an IANA System Port assigned to kryptolan (Kryptolan) over TCP and UDP.	v1
Port 399 (iso-tsap-c2) Port 399 is an IANA System Port assigned to iso-tsap-c2 over TCP and UDP.	v1
Port 400 (osb-sd) Port 400 is an IANA System Port assigned to osb-sd (Oracle Secure Backup) over TCP and UDP.	v1
Port 401 (ups) Port 401 is an IANA System Port assigned to ups (Uninterruptible Power Supply) over TCP and UDP.	v1
Port 402 (genie) Port 402 is an IANA System Port assigned to genie (Genie Protocol) over TCP and UDP.	v1
Port 403 (decap) Port 403 is an IANA System Port assigned to decap (decap) over TCP and UDP.	v1
Port 404 (nced) Port 404 is an IANA System Port assigned to nced (nced) over TCP and UDP.	v1
Port 405 (ncld) Port 405 is an IANA System Port assigned to ncld (ncld) over TCP and UDP.	v1
Port 406 (imsp) Port 406 is an IANA System Port assigned to imsp (Interactive Mail Support Protocol) over TCP and UDP.	v1
Port 407 (timbuktu) Port 407 is an IANA System Port assigned to timbuktu (Timbuktu) over TCP and UDP.	v1
Port 408 (prm-sm) Port 408 is an IANA System Port assigned to prm-sm (Prospero Resource Manager Sys. Man.) over TCP and UDP.	v1
Port 409 (prm-nm) Port 409 is an IANA System Port assigned to prm-nm (Prospero Resource Manager Node Man.) over TCP and UDP.	v1
Port 41 (graphics) Port 41 is an IANA System Port assigned to graphics (Graphics) over TCP and UDP.	v1
Port 410 (decladebug) Port 410 is an IANA System Port assigned to decladebug (DECLadebug Remote Debug Protocol) over TCP and UDP.	v1
Port 411 (rmt) Port 411 is an IANA System Port assigned to rmt (Remote MT Protocol) over TCP and UDP.	v1
Port 412 (synoptics-trap) Port 412 is an IANA System Port assigned to synoptics-trap (Trap Convention Port) over TCP and UDP.	v1
Port 413 (smsp) Port 413 is an IANA System Port assigned to smsp (Storage Management Services Protocol) 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