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
108.162.196.3United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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12.127.16.67rmtu.mt.rs.els-gms.att.netUnited StatesAS7018AT&T Enterprises, LLCatt.comCollecting1 measurement
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12.127.16.77United StatesAS7018AT&T Enterprises, LLCatt.comCollecting1 measurement
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12.171.191.58United StatesAS7018AT&T Enterprises, LLCatt.comCollecting1 measurement
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12.218.209.130United StatesAS7018AT&T Enterprises, LLCatt.comCollecting1 measurement
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12.219.149.241United StatesAS7018AT&T Enterprises, LLCatt.comCollecting1 measurement
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12.221.3.59United StatesAS7018AT&T Enterprises, LLCatt.comCollecting1 measurement
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12.28.98.3ns1.conleypublishing.comUnited StatesAS7018AT&T Enterprises, LLCatt.com100.0%2 / 2 successful · 14 day window
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12.40.39.5United StatesAS7018AT&T Enterprises, LLCatt.comCollecting1 measurement
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129.250.35.251y.ns.gin.ntt.netUnited StatesAS2914NTT America, Inc.ntt.netCollecting1 measurement
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129.7.81.40ns1.uhcl.eduUnited StatesAS7276University of Houstonuh.eduCollecting1 measurement
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146.71.76.129United StatesAS36007Kamatera, Inc.cloudwm.comCollecting1 measurement
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146.71.84.161United StatesAS10753Level 3 Parent, LLClevel3.comCollecting1 measurement
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149.112.112.10dns10.quad9.netUnited StatesAS19281Quad9quad9.netCollecting1 measurement
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149.112.112.11dns11.quad9.netUnited StatesAS19281Quad9quad9.net100.0%15 / 15 successful · 14 day window
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149.112.112.12dns12.quad9.netUnited StatesAS19281Quad9quad9.netCollecting1 measurement
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149.112.149.112dns.quad9.netUnited StatesAS19281Quad9quad9.netCollecting1 measurement
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149.28.65.242pdns-36.sdp.comUnited StatesAS20473The Constant Company, LLCvultr.comCollecting1 measurement
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155.33.195.106United StatesAS156Northeastern Universitynortheastern.edu100.0%2 / 2 successful · 14 day window
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156.154.54.15United StatesAS12008Vercara, LLCdigicert.com100.0%15 / 15 successful · 14 day window
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156.154.54.8United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.13United StatesAS12008Vercara, LLCdigicert.com100.0%15 / 15 successful · 14 day window
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156.154.70.14United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.19United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.20United StatesAS12008Vercara, LLCdigicert.com100.0%2 / 2 successful · 14 day window
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156.154.70.26United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.33United StatesAS12008Vercara, LLCdigicert.com100.0%2 / 2 successful · 14 day window
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156.154.70.46United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.47United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.50United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.52United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.56United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.61United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.70.7United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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156.154.71.13United StatesAS12008Vercara, LLCdigicert.com100.0%15 / 15 successful · 14 day window
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156.154.71.22United StatesAS12008Vercara, LLCdigicert.comCollecting1 measurement
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158.51.134.53dns1.nonexiste.netUnited StatesAS26457nonexiste.netnonexiste.net93.3%14 / 15 successful · 14 day window
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161.11.226.170United StatesAS26854New York Statenyspta.orgCollecting1 measurement
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161.11.228.11United StatesAS26854New York Statenyspta.orgCollecting1 measurement
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162.159.0.10United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.0.106United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.0.110United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%2 / 2 successful · 14 day window
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162.159.0.118United StatesAS13335Cloudflare, Inc.cloudflare.com100.0%15 / 15 successful · 14 day window
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162.159.0.132United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.0.195United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.0.7United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.0.73United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.1.120United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.1.221United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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162.159.1.238United StatesAS13335Cloudflare, Inc.cloudflare.comCollecting1 measurement
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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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