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.
Documents
| Document | Version |
|---|---|
Port 777 (multiling-http)Port 777 is an IANA System Port assigned to multiling-http (Multiling HTTP) over TCP and UDP. | |
Port 78 (vettcp)Port 78 is an IANA System Port assigned to vettcp (vettcp) over TCP and UDP. | |
Port 780 (wpgs)Port 780 is an IANA System Port assigned to wpgs over TCP and UDP. | |
Port 79 (finger)Port 79 is an IANA System Port assigned to finger (Finger) over TCP and UDP. | |
Port 80 (http, www, www-http)Port 80 is an IANA System Port assigned to http, www, and www-http over TCP, UDP, and SCTP. | |
Port 800 (mdbs-daemon, mdbs_daemon)Port 800 is an IANA System Port assigned to mdbs-daemon and mdbs_daemon over TCP and UDP. | |
Port 801 (device)Port 801 is an IANA System Port assigned to device over TCP and UDP. | |
Port 802 (mbap-s)Port 802 is an IANA System Port assigned to mbap-s (Modbus Application Protocol Secure) over TCP and UDP. | |
Port 810 (fcp-udp)Port 810 is an IANA System Port assigned to fcp-udp over TCP and UDP. | |
Port 82 (xfer)Port 82 is an IANA System Port assigned to xfer (XFER Utility) over TCP and UDP. | |
Port 828 (itm-mcell-s)Port 828 is an IANA System Port assigned to itm-mcell-s (itm-mcell-s) over TCP and UDP. | |
Port 829 (pkix-3-ca-ra)Port 829 is an IANA System Port assigned to pkix-3-ca-ra (PKIX-3 CA/RA) over TCP and UDP. | |
Port 83 (mit-ml-dev)Port 83 is an IANA System Port assigned to mit-ml-dev (MIT ML Device) over TCP and UDP. | |
Port 830 (netconf-ssh)Port 830 is an IANA System Port assigned to netconf-ssh (NETCONF over SSH) over TCP and UDP. | |
Port 84 (ctf)Port 84 is an IANA System Port assigned to ctf (Common Trace Facility) over TCP and UDP. | |
Port 847 (dhcp-failover2)Port 847 is an IANA System Port assigned to dhcp-failover2 (dhcp-failover 2) over TCP and UDP. | |
Port 848 (gdoi)Port 848 is an IANA System Port assigned to gdoi (GDOI) over TCP and UDP. | |
Port 85 (mit-ml-dev)Port 85 is an IANA System Port assigned to mit-ml-dev (MIT ML Device) over TCP and UDP. | |
Port 853 (domain-s)Port 853 is an IANA System Port assigned to domain-s over TCP and UDP. | |
Port 854 (dlep)Port 854 is an IANA System Port assigned to dlep (Dynamic Link Exchange Protocol (DLEP)) over TCP and UDP. | |
Port 86 (mfcobol)Port 86 is an IANA System Port assigned to mfcobol (Micro Focus Cobol) over TCP and UDP. | |
Port 860 (iscsi)Port 860 is an IANA System Port assigned to iscsi (iSCSI) over TCP and UDP. | |
Port 861 (owamp-control, owamp-test)Port 861 is an IANA System Port assigned to owamp-control and owamp-test over TCP and UDP. | |
Port 862 (twamp-control, twamp-test)Port 862 is an IANA System Port assigned to twamp-control and twamp-test over TCP and UDP. |
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
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".
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 Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo
- Published by Koskamo