IPv4 Address

1.1.1.1

Cloudflare DNS

DNS Resolver

Organization: Cloudflare Inc.
ASN: AS13335
Location: San Francisco, California, United States
Type: DNS Resolver
PTR / Reverse DNS: one.one.one.one
IP Version: IPv4 Address

By: Katia Belokon · Verified June 2026

Full Geolocation Lookup Check Blacklist Status WHOIS Lookup

What is 1.1.1.1?

1.1.1.1 is the primary IP address of Cloudflare's public DNS resolver, launched on April 1, 2018. Cloudflare claims it is the fastest public DNS resolver in the world, with a focus on user privacy. Unlike Google DNS, Cloudflare states it does not use DNS query data to serve advertisements and promises to wipe all logs within 24 hours.

Privacy note

1.1.1.1 appearing in a DNS leak test means your DNS is going through Cloudflare's infrastructure. This is common when using Cloudflare's 1.1.1.1 app, WARP, or when your router is configured to use it. If your VPN is not overriding DNS, this resolver may still be visible.

Check this IP address with MyIPScan tools

IP Geolocation LookupSee country, city, ISP, and ASN details for any IP address. IP Blacklist CheckerCheck if this IP appears on major spam and abuse blocklists. WHOIS LookupGet registrar and ownership information for this IP block. DNS LookupLook up PTR records and DNS data associated with this IP. DNS Leak TestCheck which DNS resolvers your browser is using right now. VPN Leak TestVerify your VPN is routing all traffic correctly.

Frequently asked questions about 1.1.1.1

Who owns 1.1.1.1?

1.1.1.1 is operated by Cloudflare Inc. The ASN is AS13335.

Where is 1.1.1.1 located?

Based on geolocation data, 1.1.1.1 is associated with San Francisco, California, United States. IP geolocation is approximate and may differ from the physical server location.

How do I look up 1.1.1.1?

Use MyIPScan's IP Geolocation Lookup, WHOIS Lookup, or IP Blacklist Checker to get detailed information about this address.

Related networks and addresses

Other public resolver addresses people look up for the same reason.

AS13335 — Cloudflare Inc.The autonomous system this address is announced from.Cloudflare IP rangesEvery prefix this network announces.2606:4700:4700::1111Cloudflare Inc. · DNS Resolver.1.0.0.1Cloudflare Inc. · DNS Resolver.76.76.2.0ControlD · DNS Resolver.185.228.168.9CleanBrowsing · DNS Resolver.

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