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network-v1/registry-ips/001-001-001-000--24--apnic.md

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APNIC range: 1.1.1.0/24

Who is this IP range?

Short answer: APNIC Research and Development is the registered resource holder; Cloudflare currently originates the route through AS13335 and operates the documented 1.1.1.1 resolver service.

  • Registry: APNIC
  • Range: 1.1.1.0/24
  • RDAP name/type: APNIC-LABS / ASSIGNED PORTABLE
  • Registered resource holder: APNIC Research and Development
  • Observed route origin: AS13335 — Cloudflare, Inc.
  • Classification: Public unicast
  • Globally routed: Yes
  • Verified: 2026-07-20

Range knowledge

APNIC RDAP describes 1.1.1.0/24 as APNIC research space and documents the APNIC–Cloudflare DNS Resolver project. Current routing evidence observed during the investigation showed Cloudflare's AS13335 originating the prefix.

This means “ownership” must be separated into relationships:

  • Registration: APNIC Research and Development is the published registrant.
  • Routing: Cloudflare AS13335 originates the covering prefix.
  • Operation: Cloudflare operates the public resolver service.
  • Project relationship: APNIC and Cloudflare publicly document their collaboration.

Investigated addresses

1.1.1.1

1.1.1.1 is Cloudflare's public recursive DNS resolver address within the registered range.

Detailed address page: address-book/ip/1.1.1.1.md

Relationship summary

Axis Finding
Registration APNIC APNIC-LABS resource
Registered holder APNIC Research and Development
Announced prefix 1.1.1.0/24
Route origin AS13335, Cloudflare, Inc.
Operator Cloudflare
Known service 1.1.1.1 public recursive DNS resolver

Sources