wire / cbor-tag / 261

CBOR tag 261 — Network Address Prefix (IPv4 or IPv6 Address + Mask Length)…

CBOR tag 261 (data item: map (IPAddress + Mask Length)): Network Address Prefix (IPv4 or IPv6 Address + Mask Length) (DEPRECATED in favor of 52 and 54 for IP addresses). Defined in RFC9164.

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

registry record

value: 261

references: RFC9164

Tag	261
Data Item	map (IPAddress + Mask Length)
Semantics	Network Address Prefix (IPv4 or IPv6 Address + Mask Length) (DEPRECATED in favor of 52 and 54 for IP addresses)
Reference	[https://github.com/toravir/CBOR-Tag-Specs/blob/master/networkPrefix.md][Ravi_Raju][RFC9164]
Template

provenance

source: https://www.iana.org/assignments/cbor-tags/tags.csv
version: IANA registry, Last-Modified: Thu, 02 Apr 2026 23:51:20 GMT
retrieved: 2026-05-29 · updated: 2026-05-29

agent: curl -H 'accept: application/json' wire.phall.io/cbor-tag/261 or /cbor-tag/261.json