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 289–312 of 686 documents

Document	Version
Port 436 (dna-cml) Port 436 is an IANA System Port assigned to dna-cml (DNA-CML) over TCP and UDP.	v1
Port 437 (comscm) Port 437 is an IANA System Port assigned to comscm (comscm) over TCP and UDP.	v1
Port 438 (dsfgw) Port 438 is an IANA System Port assigned to dsfgw (dsfgw) over TCP and UDP.	v1
Port 439 (dasp) Port 439 is an IANA System Port assigned to dasp (dasp) over TCP and UDP.	v1
Port 44 (mpm-flags) Port 44 is an IANA System Port assigned to mpm-flags (MPM FLAGS Protocol) over TCP and UDP.	v1
Port 440 (sgcp) Port 440 is an IANA System Port assigned to sgcp (sgcp) over TCP and UDP.	v1
Port 441 (decvms-sysmgt) Port 441 is an IANA System Port assigned to decvms-sysmgt (decvms-sysmgt) over TCP and UDP.	v1
Port 442 (cvc-hostd, cvc_hostd) Port 442 is an IANA System Port assigned to cvc-hostd and cvc_hostd over TCP and UDP.	v1
Port 443 (https) Port 443 is an IANA System Port assigned to https over TCP, UDP, and SCTP.	v1
Port 444 (snpp) Port 444 is an IANA System Port assigned to snpp (Simple Network Paging Protocol) over TCP and UDP.	v1
Port 445 (microsoft-ds) Port 445 is an IANA System Port assigned to microsoft-ds (Microsoft-DS) over TCP and UDP.	v1
Port 446 (ddm-rdb) Port 446 is an IANA System Port assigned to ddm-rdb (DDM-Remote Relational Database Access) over TCP and UDP.	v1
Port 447 (ddm-dfm) Port 447 is an IANA System Port assigned to ddm-dfm (DDM-Distributed File Management) over TCP and UDP.	v1
Port 448 (ddm-ssl) Port 448 is an IANA System Port assigned to ddm-ssl (DDM-Remote DB Access Using Secure Sockets) over TCP and UDP.	v1
Port 449 (as-servermap) Port 449 is an IANA System Port assigned to as-servermap (AS Server Mapper) over TCP and UDP.	v1
Port 45 (mpm) Port 45 is an IANA System Port assigned to mpm (Message Processing Module [recv]) over TCP and UDP.	v1
Port 450 (tserver) Port 450 is an IANA System Port assigned to tserver (Computer Supported Telecomunication Applications) over TCP and UDP.	v1
Port 451 (sfs-smp-net) Port 451 is an IANA System Port assigned to sfs-smp-net (Cray Network Semaphore server) over TCP and UDP.	v1
Port 452 (sfs-config) Port 452 is an IANA System Port assigned to sfs-config (Cray SFS config server) over TCP and UDP.	v1
Port 453 (creativeserver) Port 453 is an IANA System Port assigned to creativeserver (CreativeServer) over TCP and UDP.	v1
Port 454 (contentserver) Port 454 is an IANA System Port assigned to contentserver (ContentServer) over TCP and UDP.	v1
Port 455 (creativepartnr) Port 455 is an IANA System Port assigned to creativepartnr (CreativePartnr) over TCP and UDP.	v1
Port 456 (macon-tcp, macon-udp) Port 456 is an IANA System Port assigned to macon-tcp and macon-udp over TCP and UDP.	v1
Port 457 (scohelp) Port 457 is an IANA System Port assigned to scohelp (scohelp) 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