Port 451 — sfs-smp-net

Well-known port 451 (tcp/udp): Cray Network Semaphore server. Service name: sfs-smp-net.

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

registry record

value: 451

Service Name	sfs-smp-net
Port Number	451
Transport Protocol	tcp
Description	Cray Network Semaphore server
Assignee
Contact
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/451 or /port/451.json