# 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`](../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

- [APNIC RDAP record](https://rdap.apnic.net/ip/1.1.1.1), checked 2026-07-20
- [RIPEstat prefix overview](https://stat.ripe.net/data/prefix-overview/data.json?resource=1.1.1.1), checked 2026-07-20
- [Cloudflare launch announcement](https://blog.cloudflare.com/announcing-1111/)