Port 90 — dnsix

Well-known port 90 (tcp/udp): DNSIX Securit Attribute Token Map. Service name: dnsix.

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

registry record

value: 90

Service Name	dnsix
Port Number	90
Transport Protocol	tcp
Description	DNSIX Securit Attribute Token Map
Assignee	[Charles_Watt]
Contact	[Charles_Watt]
Registration Date
Modification Date
Reference
Service Code
Unauthorized Use Reported	PORT 90 also being used unofficially by Pointcast
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/90 or /port/90.json