DNS Servers

United States of America 4329 local DNS servers

For debugging only

This list is intended to help troubleshoot DNS issues. Do not configure these servers as your DNS resolver unless you know and trust the operator. A DNS resolver can log the domains you look up and can manipulate or block DNS responses.

Instead, use your ISP's default DNS server, or a global DNS server operated by an organisation you trust.

Global DNS servers

  • 66.18.48.13

    EPB Fiber Optics

    AS26827

    Chattanooga

    35.0456, -85.3097

    100% uptime

    118ms
    |
    7ms
    |
    25ms
  • 68.169.182.166

    EPB Fiber Optics

    AS26827

    Chattanooga

    35.0456, -85.3097

    100% uptime

    117ms
    |
    6ms
    |
    91ms
  • 184.174.152.6

    EPB Fiber Optics

    AS26827

    Chattanooga

    35.0456, -85.3097

    99% uptime

    115ms
    |
    7ms
    |
    52ms
  • 192.111.72.126

    EPB Fiber Optics

    AS26827

    Chattanooga

    35.0456, -85.3097

    100% uptime

    116ms
    |
    3ms
    |
    150ms
  • 204.93.96.250

    EPB Fiber Optics

    AS26827

    Chattanooga

    35.0456, -85.3097

    96% uptime

    117ms
    |
    1ms
    |
    207ms
  • 24.39.48.146

    Charter Communications Inc

    AS11351

    Cheektowaga

    42.9034, -78.7548

    99% uptime

    118ms
    |
    3ms
    |
    185ms
  • 70.22.182.180

    Verizon Business

    AS701

    Chelmsford

    42.5998, -71.3673

    100% uptime

    106ms
    |
    1ms
    |
    132ms
  • 24.0.114.130

    Comcast Cable Communications, LLC

    AS7922

    Cherry Hill

    39.9348, -75.0307

    98% uptime

    115ms
    |
    2ms
    |
    214ms
  • 174.172.9.231

    Comcast Cable Communications, LLC

    AS7922

    Chesapeake Ranch Estates

    38.3462, -76.4177

    96% uptime

    119ms
    |
    2ms
    |
    76ms
  • 35.134.161.108

    Charter Communications LLC

    AS20115

    Chesterfield

    38.6631, -90.5771

    100% uptime

    135ms
    |
    3ms
    |
    78ms
  • 143.109.166.4

    Clarity Telecom LLC

    AS20412

    Cheyenne

    41.1400, -104.8203

    100% uptime

    126ms
    |
    8ms
    |
    77ms
  • 12.50.228.114

    AT&T Enterprises, LLC

    AS7018

    Chicago

    41.8500, -87.6500

    98% uptime

    120ms
    |
    13ms
    |
    158ms
  • 12.144.27.234

    AT&T Enterprises, LLC

    AS7018

    Chicago

    41.8500, -87.6500

    100% uptime

    120ms
    |
    1ms
    |
    179ms
  • 12.178.223.238

    AT&T Enterprises, LLC

    AS7018

    Chicago

    41.8500, -87.6500

    100% uptime

    116ms
    |
    0ms
    |
    77ms
  • 23.19.180.32

    Leaseweb USA, Inc.

    AS27411

    Chicago

    41.8500, -87.6500

    99% uptime

    111ms
    |
    3ms
    |
    24ms
  • 23.227.194.99

    HIVELOCITY, Inc.

    AS29802

    Chicago

    41.8500, -87.6500

    100% uptime

    115ms
    |
    9ms
    |
    7ms
  • 24.13.113.220

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    130ms
    |
    3ms
    |
    214ms
  • 24.136.29.240

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    98% uptime

    123ms
    |
    3ms
    |
    194ms
  • 32.132.59.86

    AT&T Enterprises, LLC

    AS7018

    Chicago

    41.8500, -87.6500

    100% uptime

    115ms
    |
    1ms
    |
    161ms
  • 37.1.211.137

    HIVELOCITY, Inc.

    AS29802

    Chicago

    41.8713, -87.6277

    100% uptime

    119ms
    |
    3ms
    |
    154ms
  • 38.114.121.196

    GTHost

    AS63023

    Chicago

    41.8500, -87.6500

    100% uptime

    112ms
    |
    16ms
    |
    125ms
  • 38.140.113.211

    Cogent Communications, LLC

    AS174

    Chicago

    41.8500, -87.6500

    99% uptime

    112ms
    |
    8ms
    |
    15ms
  • 45.33.198.3

    Genesis Hosting Solutions, LLC

    AS53914

    Chicago

    41.8500, -87.6500

    100% uptime

    100ms
    |
    3ms
    |
    202ms
  • 50.31.1.254

    HIVELOCITY, Inc.

    AS29802

    Chicago

    41.8500, -87.6500

    100% uptime

    117ms
    |
    8ms
    |
    164ms
  • 50.31.148.226

    DEFT.COM

    AS23352

    Chicago

    41.8500, -87.6500

    100% uptime

    100ms
    |
    1ms
    |
    86ms
  • 50.171.16.226

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    120ms
    |
    3ms
    |
    186ms
  • 50.194.121.235

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    126ms
    |
    3ms
    |
    110ms
  • 50.225.45.254

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    123ms
    |
    2ms
    |
    181ms
  • 50.234.141.1

    Comcast Cable Communications, LLC

    AS33491

    Chicago

    41.8500, -87.6500

    100% uptime

    120ms
    |
    8ms
    |
    176ms
  • 64.44.23.242

    Nexeon Technologies, Inc.

    AS20278

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    1ms
    |
    84ms
  • 64.53.131.197

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    99% uptime

    113ms
    |
    1ms
    |
    14ms
  • 66.23.205.228

    Dedicated.com

    AS63018

    Chicago

    41.8500, -87.6500

    100% uptime

    112ms
    |
    3ms
    |
    84ms
  • 66.23.205.229

    Dedicated.com

    AS63018

    Chicago

    41.8500, -87.6500

    98% uptime

    113ms
    |
    5ms
    |
    83ms
  • 66.207.44.21

    Webair Internet Development Company Inc.

    AS396528

    Chicago

    41.8500, -87.6500

    100% uptime

    100ms
    |
    3ms
    |
    16ms
  • 66.252.79.12

    MNJ Technology Services LLC

    AS12223

    Chicago

    41.8500, -87.6500

    100% uptime

    120ms
    |
    13ms
    |
    111ms
  • 67.173.70.49

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    120ms
    |
    2ms
    |
    206ms
  • 68.70.162.70

    CONVERGEONE HOLDINGS, INC.

    AS22458

    Chicago

    41.8500, -87.6500

    100% uptime

    101ms
    |
    3ms
    |
    87ms
  • 69.65.1.83

    GigeNET

    AS32181

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    0ms
    |
    232ms
  • 73.8.243.79

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    99% uptime

    129ms
    |
    3ms
    |
    206ms
  • 73.45.164.28

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    125ms
    |
    3ms
    |
    68ms
  • 73.50.177.149

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    98% uptime

    126ms
    |
    3ms
    |
    296ms
  • 73.246.169.239

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    126ms
    |
    3ms
    |
    201ms
  • 74.119.218.4

    SBA Edge, LLC

    AS53264

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    0ms
    |
    157ms
  • 74.199.150.204

    GTT Communications Inc.

    AS3257

    Chicago

    41.8500, -87.6500

    100% uptime

    107ms
    |
    1ms
    |
    151ms
  • 79.141.160.54

    HZ Hosting Ltd

    AS202015

    Chicago

    41.8500, -87.6500

    100% uptime

    112ms
    |
    2ms
    |
    17ms
  • 84.32.131.176

    UAB Cherry Servers

    AS204770

    Chicago

    41.8500, -87.6500

    99% uptime

    119ms
    |
    8ms
    |
    2ms
  • 96.74.152.241

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    100% uptime

    127ms
    |
    3ms
    |
    183ms
  • 96.74.217.161

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    98% uptime

    135ms
    |
    4ms
    |
    336ms
  • 98.52.183.56

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    98% uptime

    124ms
    |
    3ms
    |
    190ms
  • 98.214.168.179

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    98% uptime

    122ms
    |
    3ms
    |
    205ms
  • 103.89.14.57

    Kamatera, Inc.

    AS36007

    Chicago

    41.8713, -87.6277

    98% uptime

    109ms
    |
    1ms
    |
    173ms
  • 107.152.32.72

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    1ms
    |
    230ms
  • 107.152.32.112

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    99% uptime

    106ms
    |
    4ms
    |
    220ms
  • 107.152.33.160

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    3ms
    |
    233ms
  • 107.152.35.66

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    4ms
    |
    220ms
  • 107.152.35.183

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    99% uptime

    106ms
    |
    3ms
    |
    220ms
  • 107.152.36.201

    tzulo, inc.

    AS11878

    Chicago

    41.8798, -87.6285

    99% uptime

    106ms
    |
    4ms
    |
    216ms
  • 107.152.41.78

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    98% uptime

    106ms
    |
    6ms
    |
    222ms
  • 107.152.41.79

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    5ms
    |
    220ms
  • 107.152.41.162

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    4ms
    |
    223ms
  • 107.152.42.234

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    3ms
    |
    127ms
  • 108.62.103.130

    Leaseweb USA, Inc.

    AS27411

    Chicago

    41.8500, -87.6500

    100% uptime

    117ms
    |
    3ms
    |
    18ms
  • 108.160.204.83

    SilverIP Communications Inc.

    AS46811

    Chicago

    41.8500, -87.6500

    99% uptime

    111ms
    |
    62ms
    |
    166ms
  • 108.181.62.133

    Psychz Networks

    AS40676

    Chicago

    41.8500, -87.6500

    99% uptime

    104ms
    |
    3ms
    |
    81ms
  • 108.181.62.189

    Psychz Networks

    AS40676

    Chicago

    41.8500, -87.6500

    99% uptime

    104ms
    |
    4ms
    |
    83ms
  • 108.181.62.201

    Psychz Networks

    AS40676

    Chicago

    41.8500, -87.6500

    99% uptime

    104ms
    |
    3ms
    |
    84ms
  • 130.51.22.5

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    0ms
    |
    18ms
  • 130.51.22.177

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    3ms
    |
    220ms
  • 131.239.223.198

    Crown Castle Fiber LLC

    AS46887

    Chicago

    41.8500, -87.6500

    100% uptime

    115ms
    |
    2ms
    |
    270ms
  • 136.30.130.242

    Webpass Inc.

    AS19165

    Chicago

    41.8500, -87.6500

    100% uptime

    113ms
    |
    4ms
    |
    112ms
  • 136.30.152.249

    Webpass Inc.

    AS19165

    Chicago

    41.8500, -87.6500

    98% uptime

    109ms
    |
    4ms
    |
    102ms
  • 140.212.160.30

    Panasonic Corporation of North America

    AS15139

    Chicago

    41.8500, -87.6500

    100% uptime

    121ms
    |
    1ms
    |
    166ms
  • 142.44.80.26

    NETWORK INNOVATIONS, LLC

    AS53828

    Chicago

    41.8500, -87.6500

    100% uptime

    107ms
    |
    3ms
    |
    246ms
  • 149.75.128.164

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    100% uptime

    124ms
    |
    2ms
    |
    179ms
  • 149.75.208.152

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    99% uptime

    124ms
    |
    3ms
    |
    176ms
  • 154.16.127.254

    Hivelocity LLC

    AS61317

    Chicago

    41.8500, -87.6500

    100% uptime

    117ms
    |
    5ms
    |
    16ms
  • 154.16.135.254

    Hivelocity LLC

    AS61317

    Chicago

    41.8500, -87.6500

    100% uptime

    114ms
    |
    9ms
    |
    156ms
  • 154.127.52.254

    Hivelocity LLC

    AS61317

    Chicago

    41.8500, -87.6500

    100% uptime

    115ms
    |
    13ms
    |
    156ms
  • 162.191.27.150

    T-Mobile USA, Inc.

    AS21928

    Chicago

    41.8500, -87.6500

    100% uptime

    162ms
    |
    4ms
    |
    298ms
  • 162.191.101.41

    T-Mobile USA, Inc.

    AS21928

    Chicago

    41.8500, -87.6500

    100% uptime

    226ms
    |
    81ms
    |
    280ms
  • 162.191.227.186

    T-Mobile USA, Inc.

    AS21928

    Chicago

    41.8500, -87.6500

    98% uptime

    165ms
    |
    6ms
    |
    338ms
  • 162.212.152.33

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    4ms
    |
    222ms
  • 162.212.152.241

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    98% uptime

    106ms
    |
    7ms
    |
    225ms
  • 162.212.153.52

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    3ms
    |
    223ms
  • 162.212.153.174

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    4ms
    |
    222ms
  • 162.212.155.114

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    3ms
    |
    222ms
  • 162.212.155.141

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    98% uptime

    106ms
    |
    4ms
    |
    221ms
  • 162.212.157.33

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    4ms
    |
    176ms
  • 162.212.157.95

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    98% uptime

    106ms
    |
    4ms
    |
    220ms
  • 162.212.157.200

    tzulo, inc.

    AS11878

    Chicago

    41.8500, -87.6500

    100% uptime

    106ms
    |
    2ms
    |
    216ms
  • 163.192.205.193

    Oracle Corporation

    AS31898

    Chicago

    41.8500, -87.6500

    100% uptime

    112ms
    |
    3ms
    |
    10ms
  • 169.150.236.50

    Datacamp Limited

    AS60068

    Chicago

    41.8500, -87.6500

    100% uptime

    107ms
    |
    1ms
    |
    114ms
  • 172.233.211.64

    Akamai Connected Cloud

    AS63949

    Chicago

    41.8500, -87.6500

    98% uptime

    110ms
    |
    1ms
    |
    163ms
  • 172.233.214.162

    Akamai Connected Cloud

    AS63949

    Chicago

    41.8500, -87.6500

    100% uptime

    108ms
    |
    1ms
    |
    153ms
  • 172.234.20.149

    Akamai Connected Cloud

    AS63949

    Chicago

    41.8500, -87.6500

    100% uptime

    108ms
    |
    3ms
    |
    20ms
  • 172.234.25.16

    Akamai Connected Cloud

    AS63949

    Chicago

    41.8500, -87.6500

    100% uptime

    108ms
    |
    3ms
    |
    129ms
  • 172.234.30.133

    Akamai Connected Cloud

    AS63949

    Chicago

    41.8500, -87.6500

    100% uptime

    110ms
    |
    2ms
    |
    225ms
  • 172.236.118.118

    Akamai Connected Cloud

    AS63949

    Chicago

    41.8500, -87.6500

    100% uptime

    110ms
    |
    1ms
    |
    60ms
  • 172.236.126.61

    Akamai Connected Cloud

    AS63949

    Chicago

    41.8500, -87.6500

    100% uptime

    108ms
    |
    1ms
    |
    220ms
  • 172.245.133.87

    HostPapa

    AS36352

    Chicago

    41.8500, -87.6500

    96% uptime

    100ms
    |
    0ms
    |
    28ms