Measured resolver 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
162.159.39.92United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.39.97United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
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162.159.39.98United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.4.100United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
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162.159.4.111United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.4.193United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.4.243United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.4.27United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.4.29United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
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162.159.4.71United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%16 / 16 successful · 14 day window
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162.159.40.172United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.40.184United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.40.189United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.40.215United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.40.74United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.41.0United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.41.147United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.41.17United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
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162.159.41.34United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.41.84United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.10ns020.name.cloud.ibm.comUnited StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.101United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.105United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.108United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.109United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.121United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.127United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.129United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.131United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.136United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.137United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.138United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.142United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%16 / 16 successful · 14 day window
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162.159.42.149United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.153United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.158United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.160United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.168United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.169United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
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162.159.42.17ns034.name.cloud.ibm.comUnited StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.171United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.173United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.178United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.179United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.181United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.183United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.188United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.189United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.42.194United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.42.20ns040.name.cloud.ibm.comUnited StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
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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.

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

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