Port 648 — rrp

Well-known port 648 (tcp/udp): Registry Registrar Protocol (RRP). Service name: rrp.

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

registry record

value: 648

Service Name	rrp
Port Number	648
Transport Protocol	tcp
Description	Registry Registrar Protocol (RRP)
Assignee	[Scott_Hollenbeck]
Contact	[Scott_Hollenbeck]
Registration Date
Modification Date
Reference
Service Code
Unauthorized Use Reported
Assignment Notes

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/648 or /port/648.json