Port 631 — ipp (+1 more)

Well-known port 631 (tcp/udp): IPP (Internet Printing Protocol). Service names: ipp, ipps. Referenced in RFC8011.

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

aka: ipps

registry record

value: 631

references: RFC8011

Service Name	ipp
Port Number	631
Transport Protocol	tcp
Description	IPP (Internet Printing Protocol)
Assignee	[IESG]
Contact	[IETF_Chair]
Registration Date
Modification Date	2018-07-06
Reference	[RFC8011]
Service Code
Unauthorized Use Reported
Assignment Notes	Defined TXT keys: See BonjourPrinting.pdf.

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/631 or /port/631.json