VoriTools

US DNS Server Address Reference

A historical list of 145 US DNS server addresses and ranges, searchable and copyable in the browser. It is reference data, not a speed ranking — test an address from your own network before you change DNS settings.

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View category: Reference & Lookups (21)
Start IPEnd IPGeographical location
4.2.2.14.2.2.6Level 3 Communications, Bloomfield, Colorado, USA
8.2.208.58.2.208.5Level 3 Communications, Bloomfield, Colorado, USA
8.8.4.48.8.4.4Google Services, Mountainview, California, USA
8.8.8.88.8.8.8Google Services, Mountainview, California, USA
8.8.192.358.8.192.35Level 3 Communications, Bloomfield, Colorado, USA
12.17.136.13112.17.136.131DNS Server, ATT Corporation, USA
12.25.232.11512.25.232.115DNS Server, ATT Corporation, USA
12.32.34.3312.32.34.33DNS Server, ATT Corporation, USA
12.49.240.6812.49.240.68DNS Server, ATT Corporation, USA
12.166.30.212.166.30.2DNS Server, ATT Corporation, USA
12.180.165.4012.180.165.40DNS Server, ATT Corporation, USA
24.154.1.424.154.1.5DNS server, Ohio, USA
24.197.96.1624.197.96.16DNS server, Missouri, USA
24.237.132.524.237.132.5DNS server, Alaska, USA
38.98.1.538.98.1.5Cogent Communications, DNS Server, Washington, D.C.
38.98.10.13238.98.10.132Cogent Communications, DNS Server, Washington, D.C.
38.116.192.1138.116.192.11Cogent Communications, DNS Server, Washington, D.C.
48.6.16.24548.6.16.245United States Cox Communications Corporation DNS Server
63.76.176.25263.76.176.252United States of America NIC Register DNS Server
63.88.42.563.88.42.5United States of America NIC Register DNS Server
63.135.48.13063.135.48.130United States of America NIC Register DNS Server
63.148.170.1163.148.170.11DNS server, Qwest Communications Cable, Denver, Colorado, United States
63.150.244.1663.150.244.16DNS server, Qwest Communications Cable, Denver, Colorado, United States
63.245.14.19663.245.14.196DNS server, Florida, USA
63.251.129.3363.251.129.33United States Internap Network DNS Server
64.4.129.25064.4.129.250DNS server, California, USA
64.13.32.564.13.32.5DNS server, California, USA
64.13.48.1264.13.48.12DNS server, California, USA
64.13.131.3464.13.131.34DNS server, California, USA
64.30.215.12964.30.215.129DNS server, California, USA
64.57.176.1264.57.176.12DNS server, California, USA
64.58.4.264.58.4.2DNS server, California, USA
64.58.15.264.58.15.2DNS server, California, USA
64.58.254.264.58.254.2DNS server, California, USA
64.79.224.364.79.224.3DNS server, California, USA
64.79.224.2764.79.224.27DNS server, California, USA
64.85.177.1064.85.177.11DNS server, California, USA
64.89.247.1564.89.247.15DNS server, California, USA
64.90.209.5364.90.209.53DNS server, California, USA
64.91.89.264.91.89.2DNS server, California, USA
64.105.97.9064.105.97.90DNS server, California, USA
64.105.152.18664.105.152.186DNS server, California, USA
64.118.80.14164.118.80.141DNS server, California, USA
64.119.60.564.119.60.5DNS server, California, USA
64.119.60.964.119.60.9DNS server, California, USA
64.129.67.10164.129.67.101DNS server, California, USA
64.135.2.25064.135.2.250DNS server, California, USA
64.140.128.1064.140.128.10DNS server, California, USA
64.146.192.1664.146.192.16DNS server, California, USA
64.149.136.20164.149.136.201DNS server, California, USA
64.192.0.1064.192.0.10United States Williams Communications Group, DNS Server
64.207.64.564.207.64.5DNS server, California, USA
65.39.139.5365.39.139.53Peer 1 Network (Aptum), Canada
65.54.238.7065.54.238.70Microsoft public DNS server in the United States
65.88.88.265.88.88.2DNS server, Broadwing Communications, United States
65.125.132.165.125.132.1DNS server, Qwest Communications Cable, Denver, Colorado, United States
65.248.165.1165.248.165.11UUNETNS Server, USA
66.75.160.3966.75.160.39United States RoadRunner Holdings Limited DNS Server
66.79.162.066.79.188.255XIDNS machine room, California, USA
66.199.228.25466.199.228.254DNS server, New York City, USA
66.207.155.3166.207.155.31DNS server, Pennsylvania, USA
66.207.199.4466.207.199.44Beanfield Technologies, Toronto, Canada
66.218.224.4066.218.224.40DNS server, United States of America
66.218.245.1066.218.245.10DNS server, United States of America
66.218.245.1366.218.245.13DNS server, United States of America
67.15.193.16267.15.193.171Public DNS resolver endpoint in the United States.
67.199.112.2167.199.112.21DNS server, Virginia, USA
67.201.32.1167.201.32.12DNS server, Virginia, USA
67.214.64.667.214.64.7DNS server, Virginia, USA
67.214.64.2867.214.64.28DNS server, Virginia, USA
67.215.64.067.215.95.255OpenDNS Limited, San Francisco, CA, United States
68.28.154.1168.28.154.11DNS server, California, USA
68.87.64.15468.87.64.154Concast Wireless Communications Company DNS server, Kiwansan, NJ, USA
68.87.64.19968.87.64.199Concast Wireless Communications Company DNS server, Kiwansan, NJ, USA
68.87.66.19968.87.66.199Concast Wireless Communications Company DNS server, Kiwansan, NJ, USA
68.208.149.22668.208.149.226United States Southern Bell DNS Server
68.234.128.7068.234.128.70Caldwellsport DNS server, Pennsylvania, USA
69.59.32.969.59.32.9United States CafeNetwork DNS server
69.155.200.669.155.200.6DNS server, St. Louis, Missouri, USA
70.254.229.270.254.229.2Public DNS resolver endpoint for a regional United States network.
71.15.32.971.15.32.9DNS server, St. Louis, Missouri, USA
72.14.202.8072.14.202.87Google Services, Mountainview, California, USA
72.22.224.372.22.224.3DNS server, Maine/New Hampshire, United States
72.29.162.1772.29.162.17DNS server, Maine/New Hampshire, United States
72.37.141.9172.37.141.91DNS server, Maine/New Hampshire, United States
72.51.175.1072.51.175.11DNS server, Florida, USA
72.233.151.5172.233.151.51DNS server, San Francisco, California, USA
74.84.119.15074.84.119.150Mediacom Communications, Midertown, New York, USA
74.84.119.15374.84.119.153Mediacom Communications, Midertown, New York, USA
74.125.152.8074.125.152.82Google Services, Mountainview, California, USA
74.222.30.274.222.30.2DNS server, Vrtservers, California, USA
75.126.98.10875.126.98.108SoftLayer Technology, DNS Server, Dallas, Texas, United States
76.10.67.276.10.67.2DNS server, IdeaOne Telecommunications, Cas, North Dakota, United States
76.14.0.876.14.0.9DNS server, IdeaOne Telecommunications, Cas, North Dakota, United States
76.14.96.1376.14.96.14DNS server, IdeaOne Telecommunications, Cas, North Dakota, United States
76.14.192.876.14.192.9DNS server, IdeaOne Telecommunications, Cas, North Dakota, United States
76.77.208.2376.77.208.24Carson Communications LLC DNS server, Avester, Kansas, United States
128.2.200.100128.2.200.100DNS server, Carnegie Meron University, USA
128.8.10.90128.8.10.90DNS server, University of Maryland, USA
128.63.2.53128.63.2.53DNS server, Maryland, USA
128.114.129.105128.114.129.105DNS server, University of California, USA
128.143.2.126128.143.2.126DNS server, University of Virginia, United States
128.143.3.7128.143.3.7DNS server, University of Virginia, United States
128.143.22.119128.143.22.119DNS server, University of Virginia, United States
129.66.20.6129.66.20.6DNS server at the Alabama Supercomputer Center, USA
129.66.95.3129.66.95.3DNS server at the Alabama Supercomputer Center, USA
129.66.172.9129.66.172.9DNS server at the Alabama Supercomputer Center, USA
129.71.1.1129.71.1.1West Virginia Education DNS Server
129.108.202.20129.108.202.20DNS server, University of Texas, United States
129.113.38.36129.113.38.36DNS server, University of Texas, United States
129.137.254.4129.137.254.4DNS server, Cincinnati University, United States
129.137.255.4129.137.255.4DNS server, Cincinnati University, United States
131.94.134.129131.94.134.129DNS server, International University of Florida, USA
131.247.100.1131.247.100.1DNS server, University of South Florida, United States
132.170.249.15132.170.249.15DNS Server, University of Central Florida, United States
155.135.55.2155.135.55.2UCLA DNS Server
161.45.25.37161.45.25.37DNS server, Tennessee, USA
161.45.193.4161.45.193.4DNS server, Tennessee, USA
164.214.4.52164.214.4.52DNS server, Maryland, USA
165.95.31.17165.95.31.17DNS Server, A&M University, Texas, United States
168.143.113.201168.143.113.202DNS server, Englewood, USA
173.71.0.35173.71.0.35Verizon Internet ServicesDNS server, Reston, Virginia, United States
174.34.129.34174.34.129.34United StatestheplanetDNS server
174.37.59.9174.37.59.9SoftLayer Technology, DNS Server, Dallas, Texas, United States
174.120.16.34174.120.16.34The Planet Internet Service DNS Server, Houston, Texas, United States
192.5.5.241192.5.5.241DNS server, California, USA
192.58.128.30192.58.128.30DNS server, Virginia, USA
192.112.36.4192.112.36.4DNS server, Virginia, USA
192.203.230.10192.203.230.10DNS server, California, USA
198.41.0.4198.41.0.4DNS server, Virginia, USA
198.153.192.1198.153.192.1Simon Tek Norden DNS server, Cubitino, Santa Clara County, California, USA
198.153.194.1198.153.194.1Simon Tek Norden DNS server, Cubitino, Santa Clara County, California, USA
205.160.52.53205.160.52.53CHICKASSaw Telecommissions Services (CTS) DNS server, Oklahoma, USA
205.171.2.65205.171.2.65DNS server, Qwest Communications Cable, Denver, Colorado, United States
205.171.3.25205.171.3.25DNS server, Qwest Communications Cable, Denver, Colorado, United States
205.171.3.65205.171.3.65DNS server, Qwest Communications Cable, Denver, Colorado, United States
208.67.216.0208.67.223.255OpenDNS Limited, San Francisco, CA, United States
208.69.32.0208.69.39.255OpenDNS Limited, San Francisco, CA, United States
208.196.63.2208.196.63.2MCI Communications Services, Ash District, Virginia, United States, DNS server
208.218.130.5208.218.130.5MCI Communications Services, Ash District, Virginia, United States, DNS server
208.246.8.14208.246.8.14MCI Communications Services, Ash District, Virginia, United States, DNS server
209.44.0.3209.44.0.4DNS server, United States firm broomfield
216.87.84.211216.87.84.211ViaWest, DNS server, Denver, Colorado, USA
216.211.190.3216.211.190.3DNS server, New York City, USA
216.211.191.3216.211.191.3DNS server, New York City, USA

How to look up a DNS server address

The table below lists 145 DNS server addresses and ranges together with the location notes kept in the source list. The search box filters the rows as you type, and every row can be copied in one click.

The addresses are reference data: nothing is ranked, no server is contacted while the page loads, and no query leaves your browser.

  1. Type an IP fragment, a provider or a place into the search box: non-matching rows are hidden and the counter shows how many of the 145 rows remain.
  2. Copy a row with the button on its left edge — start IP, end IP and the location note are placed on the clipboard as three tab-separated fields.
  3. Before you enter an address into a router or a device, test it from the network that will use it (dig @8.8.8.8 example.com, or nslookup example.com 8.8.8.8 on Windows). If the server refuses the query or does not answer, treat the entry as historical.

Where the list comes from and what its columns mean

What the columns hold

Start IP and End IP delimit the entry. When the two cells match, the row is a single server address — 126 of the 145 rows. The other 19 rows are real ranges, from two-address pairs such as 4.2.2.1–4.2.2.6 up to large blocks such as 208.67.216.0–208.67.223.255.

Geographical location keeps the wording of the source list. Some notes name the operator (Google Services, Level 3 Communications, OpenDNS Limited), others a region, a university or a company, and a few preserve older spellings from when the list was compiled. Treat the column as a lead, not as verified geolocation.

What the list contains

The rows mix provider-published public resolvers with ISP, university and corporate servers, including operators from the 2000s such as MCI, Qwest and Broadwing. It is a historical directory, not a current ranking of speed or reliability.

Every entry is an IPv4 address; there is no IPv6, DoH or DoT column. Two rows belong to Canadian networks — Peer 1 Network (Aptum) and Beanfield Technologies — and are labeled as Canada in the table.

Verifying an address

Query the resolver from your own connection: dig @<address> example.com A. NOERROR with an answer means the server is reachable and allows recursion; REFUSED means it is alive but closed to outside clients; a timeout usually means the address is filtered or no longer in use.

Availability also changes over time and from network to network, so an address that answers today can stop tomorrow. The table is a lookup aid, not a guarantee that a resolver works from your location.

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