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 Address	Location	ASN / Network	Reliability	More
23.56.161.255a23-56-161-255.deploy.static.akamaitechnologies.com	United States	AS21342Akamai International B.V.akamai.com	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
23.56.161.53a23-56-161-53.deploy.static.akamaitechnologies.com	United States	AS21342Akamai International B.V.akamai.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
23.56.161.88a23-56-161-88.deploy.static.akamaitechnologies.com	United States	AS21342Akamai International B.V.akamai.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
23.59.248.128a23-59-248-128.deploy.static.akamaitechnologies.com	United States	AS21342Akamai International B.V.akamai.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
24.116.92.101ns1.techlab.cableone.net	United States	AS11492CABLE ONE, INC.cableone.biz	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
24.124.66.35cdromsrv.cscnt.com	United States	AS11232Midcontinent Communicationsmidco.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
3.214.203.108ec2-3-214-203-108.compute-1.amazonaws.com	United States	AS14618Amazon.com, Inc.amazon.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
38.141.25.244	United States	AS393737Cpuonsiteplainsinternet.com	Collecting1 measurement	More Reverse DNS DNS Lookup WHOIS / RDAP Port Check
4.7.175.6ISLAND-COAS.bar4.Tampa1.Level3.net	United States	AS3356Level 3 Parent, LLClumen.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
4.79.244.118MATRIX-DESI.bear1.Boston1.Level3.net	United States	AS3356Level 3 Parent, LLClumen.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.32.202.18745.32.202.187.vultrusercontent.com	United States	AS20473The Constant Company, LLCvultr.com	100.0%2 / 2 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.77.198.11345.77.198.113.vultrusercontent.com	United States	AS20473The Constant Company, LLCvultr.com	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.101dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.107dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.115dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.116dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.123dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.128dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.129dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.131dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.134dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.143dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.144dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.146dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.148dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.151dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.153dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.154dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.159dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.160dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.161dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.166dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.167dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%2 / 2 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.168dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.17dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.179dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.180dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.184dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%2 / 2 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.191dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.195dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.20dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.204dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.206dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.207dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.21dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.215dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	Collecting1 measurement	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.216dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%2 / 2 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.224dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.235dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%15 / 15 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check
45.90.28.238dns1.nextdns.io	United States	AS34939NextDNS, Inc.nextdns.io	100.0%2 / 2 successful · 14 day window	More DNS Lookup WHOIS / RDAP Port Check

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 Lookup WHOIS / RDAP Port Check Reverse 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.

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