IPIP Address Lookup
IPv4public

1.1.1.1

Cloudflare Public DNS resolver • Managed by Cloudflare, Inc.

Profile updated: November 2026•Verified against IANA & RIR database allocations

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Overview of 1.1.1.1

1.1.1.1 is Cloudflare and APNIC partnership privacy-focused public DNS resolver, operating across global Anycast points of presence with strict zero-logging policies.

Classification & Technical Details

  • Protocol Version: IPv4
  • Address Classification: PUBLIC (Globally Routable on BGP)
  • Managing Authority / Registry: Cloudflare, Inc.
  • Primary ASN: AS13335
  • Authoritative Reverse DNS (PTR): one.one.one.one

Routing and Operational Purpose

The IP 1.1.1.1 is designated for Cloudflare Public DNS resolver. In modern networking, proper identification of such infrastructure nodes is essential for diagnosing traceroute latency, verifying forward-confirmed reverse DNS (FCrDNS), and establishing trustworthy security policies.