Public DNS Directory

Public DNS Servers in United States

1,613 currently listed resolvers across 80 represented ASNs. Measurements describe observed DNS responses, not recommendation or trust.

Resolvers

Showing 50 of 1613 currently listed resolvers.

IP AddressLocationASN / NetworkReliabilityMore
172.64.36.216United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.219United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.228United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.36.231United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.233United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.36.235United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.36.237United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.36.24United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.240United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.245United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.248United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.36.250United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.26United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.27United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
More
172.64.36.28United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.36.50United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.54United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.55United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.6United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.65United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.69United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.72United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.74United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.75United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.78United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.79United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.80United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.36.84United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.88United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.9United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.90United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.36.98United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.0United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.101United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.103United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.116United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.118United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.12United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.37.124United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
More
172.64.37.129United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.37.135United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
More
172.64.37.144United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.146United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.149United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
More
172.64.37.150United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
More
172.64.37.155United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.162United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.164United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%16 / 16 successful · 14 day window
More
172.64.37.165United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More
172.64.37.166United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
More

How to read this table

“Collecting” means exactly one retained observation and intentionally has no percentage. With two or more observations, the displayed percentage and successful/total count use the stated rolling window. An em dash means the field was not measured or reported.

A resolver responding to this collector does not establish an uptime guarantee, security property, ownership intent, or suitability for your use case.

DNS LookupWHOIS / RDAPPort CheckReverse DNS

Country, ASN, organization, and network data powered by IPinfo Lite. Resolver measurement data is collected by WhatIsMyIP; hostnames are from reverse DNS when available.

Other countries

Browse all countries