Port 22 — ssh

Well-known port 22 (tcp/udp/sctp): The Secure Shell (SSH) Protocol. Service name: ssh. Referenced in RFC4251, RFC9260.

port kind port status standard verification verified tier A iana-registry-row@1

registry record

value: 22

Service Name	ssh
Port Number	22
Transport Protocol	tcp
Description	The Secure Shell (SSH) Protocol
Assignee
Contact
Registration Date
Modification Date
Reference	[RFC4251]
Service Code
Unauthorized Use Reported
Assignment Notes	Defined TXT keys: u=<username> p=<password>

source: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.csv
version: IANA registry, Last-Modified: Fri, 29 May 2026 01:11:28 GMT
retrieved: 2026-05-29 · updated: 2026-05-29

agent: curl -H 'accept: application/json' wire.phall.io/port/22 or /port/22.json