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

  • 66.211.18.153

    Columbia Power and Water Systems

    AS30264

    Columbia

    35.6151, -87.0353

    98% uptime

    130ms
    |
    2ms
    |
    111ms
  • 71.179.89.254

    Verizon Business

    AS701

    Columbia

    39.2404, -76.8394

    100% uptime

    106ms
    |
    1ms
    |
    19ms
  • 76.9.168.56

    Columbia Power and Water Systems

    AS30264

    Columbia

    35.6151, -87.0353

    100% uptime

    130ms
    |
    5ms
    |
    118ms
  • 174.34.35.61

    Socket Holdings Corporation

    AS4581

    Columbia

    38.9517, -92.3341

    100% uptime

    136ms
    |
    11ms
    |
    212ms
  • 174.34.36.117

    Socket Holdings Corporation

    AS4581

    Columbia

    38.9517, -92.3341

    100% uptime

    123ms
    |
    1ms
    |
    194ms
  • 24.214.227.234

    WideOpenWest Finance LLC

    AS12083

    Columbus

    39.9612, -82.9988

    100% uptime

    115ms
    |
    0ms
    |
    162ms
  • 24.214.227.242

    WideOpenWest Finance LLC

    AS12083

    Columbus

    39.9612, -82.9988

    100% uptime

    115ms
    |
    1ms
    |
    163ms
  • 34.162.175.170

    Google LLC

    AS396982

    Columbus

    39.9612, -82.9988

    100% uptime

    97ms
    |
    2ms
    |
    141ms
  • 68.44.0.153

    Comcast Cable Communications, LLC

    AS7922

    Columbus

    39.2014, -85.9214

    99% uptime

    149ms
    |
    13ms
    |
    262ms
  • 70.63.16.146

    Charter Communications Inc

    AS10796

    Columbus

    39.9612, -82.9988

    100% uptime

    130ms
    |
    11ms
    |
    210ms
  • 75.76.84.103

    WideOpenWest Finance LLC

    AS12083

    Columbus

    39.9612, -82.9988

    100% uptime

    116ms
    |
    1ms
    |
    226ms
  • 75.117.214.194

    Windstream Communications LLC

    AS7029

    Columbus

    39.9612, -82.9988

    98% uptime

    120ms
    |
    3ms
    |
    181ms
  • 75.118.82.242

    Breezeline

    AS11776

    Columbus

    39.9612, -82.9988

    98% uptime

    128ms
    |
    2ms
    |
    247ms
  • 98.103.116.50

    Charter Communications Inc

    AS10796

    Columbus

    39.9612, -82.9988

    100% uptime

    126ms
    |
    11ms
    |
    75ms
  • 99.93.217.113

    AT&T Enterprises, LLC

    AS7018

    Columbus

    39.9612, -82.9988

    100% uptime

    117ms
    |
    1ms
    |
    96ms
  • 153.66.244.161

    Space Exploration Technologies Corporation

    AS14593

    Columbus

    39.9612, -82.9988

    98% uptime

    132ms
    |
    5ms
    |
    116ms
  • 173.45.116.27

    eNET Inc.

    AS10297

    Columbus

    39.9612, -82.9988

    100% uptime

    109ms
    |
    0ms
    |
    95ms
  • 173.45.117.151

    eNET Inc.

    AS10297

    Columbus

    39.9612, -82.9988

    100% uptime

    109ms
    |
    0ms
    |
    92ms
  • 12.13.0.39

    AT&T Enterprises, LLC

    AS7018

    Commerce

    34.0006, -118.1598

    100% uptime

    171ms
    |
    3ms
    |
    212ms
  • 207.215.49.3

    AT&T Enterprises, LLC

    AS7018

    Commerce

    34.0006, -118.1598

    100% uptime

    170ms
    |
    4ms
    |
    80ms
  • 174.99.180.26

    Charter Communications Inc

    AS11426

    Concord

    35.4089, -80.5816

    100% uptime

    119ms
    |
    2ms
    |
    167ms
  • 204.194.216.86

    North Texas Fiber, Inc

    AS397161

    Concord

    35.4089, -80.5816

    100% uptime

    117ms
    |
    3ms
    |
    116ms
  • 24.241.141.244

    Charter Communications LLC

    AS20115

    Conover

    35.7065, -81.2187

    100% uptime

    130ms
    |
    3ms
    |
    74ms
  • 76.164.119.59

    Fidium

    AS6300

    Conroe

    30.3119, -95.4561

    100% uptime

    124ms
    |
    3ms
    |
    170ms
  • 135.26.123.48

    Fidium

    AS6300

    Conroe

    30.3119, -95.4561

    100% uptime

    123ms
    |
    2ms
    |
    185ms
  • 169.150.158.62

    MidSouth Fiber

    AS398203

    Conroe

    30.3119, -95.4561

    100% uptime

    137ms
    |
    2ms
    |
    56ms
  • 207.70.155.18

    Fidium

    AS6300

    Conroe

    30.3119, -95.4561

    100% uptime

    123ms
    |
    3ms
    |
    144ms
  • 24.144.5.242

    Conway Corporation

    AS12231

    Conway

    35.0887, -92.4421

    100% uptime

    147ms
    |
    3ms
    |
    44ms
  • 149.115.62.246

    Conway Corporation

    AS12231

    Conway

    35.0887, -92.4421

    96% uptime

    135ms
    |
    4ms
    |
    198ms
  • 174.53.154.232

    Comcast Cable Communications, LLC

    AS7922

    Coon Rapids

    45.1200, -93.2877

    100% uptime

    129ms
    |
    3ms
    |
    242ms
  • 12.148.92.179

    AT&T Enterprises, LLC

    AS7018

    Coral Springs

    26.2712, -80.2706

    100% uptime

    134ms
    |
    2ms
    |
    172ms
  • 192.227.83.20

    Cloud South

    AS13886

    Coral Springs

    26.2712, -80.2706

    100% uptime

    132ms
    |
    3ms
    |
    187ms
  • 24.45.94.94

    Cablevision Systems Corp.

    AS6128

    Coram

    40.8687, -73.0015

    98% uptime

    100ms
    |
    1ms
    |
    173ms
  • 104.34.47.99

    Charter Communications Inc

    AS20001

    Corona

    33.8753, -117.5664

    100% uptime

    180ms
    |
    8ms
    |
    257ms
  • 98.6.139.117

    Charter Communications Inc

    AS11427

    Corpus Christi

    27.8006, -97.3964

    100% uptime

    141ms
    |
    2ms
    |
    240ms
  • 12.244.74.34

    AT&T Enterprises, LLC

    AS7018

    Costa Mesa

    33.6411, -117.9187

    100% uptime

    172ms
    |
    4ms
    |
    98ms
  • 208.66.246.190

    West Ky Networks

    AS22408

    Cottage Grove

    36.3792, -88.4792

    98% uptime

    118ms
    |
    6ms
    |
    30ms
  • 34.31.223.26

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    109ms
    |
    2ms
    |
    189ms
  • 34.70.43.125

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    112ms
    |
    3ms
    |
    195ms
  • 34.71.86.126

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    109ms
    |
    5ms
    |
    168ms
  • 34.121.197.148

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    109ms
    |
    2ms
    |
    181ms
  • 34.133.89.91

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    109ms
    |
    2ms
    |
    205ms
  • 35.193.147.54

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    108ms
    |
    2ms
    |
    198ms
  • 35.202.181.94

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    109ms
    |
    2ms
    |
    174ms
  • 35.223.194.56

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    109ms
    |
    3ms
    |
    198ms
  • 35.225.144.215

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    99% uptime

    110ms
    |
    2ms
    |
    50ms
  • 35.238.140.228

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    98% uptime

    111ms
    |
    3ms
    |
    185ms
  • 136.111.48.62

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    98% uptime

    111ms
    |
    2ms
    |
    72ms
  • 136.119.176.250

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    111ms
    |
    2ms
    |
    182ms
  • 12.178.223.230

    AT&T Enterprises, LLC

    AS7018

    Country Club Hills

    41.5681, -87.7203

    100% uptime

    113ms
    |
    1ms
    |
    71ms
  • 12.53.103.145

    AT&T Enterprises, LLC

    AS7018

    Coweta

    35.9518, -95.6508

    98% uptime

    148ms
    |
    4ms
    |
    181ms
  • 173.71.185.211

    Verizon Business

    AS701

    Crafton

    40.4351, -80.0662

    100% uptime

    111ms
    |
    3ms
    |
    136ms
  • 73.193.217.120

    Comcast Cable Communications, LLC

    AS7922

    Cranbury

    40.3162, -74.5138

    100% uptime

    114ms
    |
    2ms
    |
    154ms
  • 204.194.218.214

    North Texas Fiber, Inc

    AS397161

    Cresson

    32.5326, -97.6178

    100% uptime

    119ms
    |
    2ms
    |
    152ms
  • 68.187.2.2

    Charter Communications LLC

    AS20115

    Creve Coeur

    38.6609, -90.4226

    100% uptime

    134ms
    |
    3ms
    |
    124ms
  • 69.174.229.85

    Emily Cooperative Telephone Company

    AS63330

    Crosslake

    46.6594, -94.1139

    99% uptime

    123ms
    |
    39ms
    |
    80ms
  • 12.150.126.153

    AT&T Enterprises, LLC

    AS7018

    Cumming

    34.2073, -84.1402

    100% uptime

    120ms
    |
    2ms
    |
    156ms
  • 66.229.248.250

    Comcast Cable Communications, LLC

    AS7922

    Cutler Bay

    25.5783, -80.3377

    98% uptime

    143ms
    |
    1ms
    |
    102ms
  • 63.239.220.102

    CenturyLink Communications, LLC

    AS209

    Cypress Quarters

    27.2520, -80.8140

    98% uptime

    148ms
    |
    12ms
    |
    352ms
  • 63.239.220.211

    CenturyLink Communications, LLC

    AS209

    Cypress Quarters

    27.2520, -80.8140

    99% uptime

    147ms
    |
    10ms
    |
    347ms
  • 73.200.181.182

    Comcast Cable Communications, LLC

    AS7922

    Dale City

    38.6371, -77.3111

    98% uptime

    120ms
    |
    1ms
    |
    195ms
  • 12.79.127.70

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    98% uptime

    149ms
    |
    3ms
    |
    46ms
  • 12.152.213.66

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    96% uptime

    141ms
    |
    3ms
    |
    151ms
  • 12.200.173.197

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7781, -96.8054

    100% uptime

    146ms
    |
    3ms
    |
    296ms
  • 23.92.76.70

    HIVELOCITY, Inc.

    AS29802

    Dallas

    32.7831, -96.8067

    100% uptime

    140ms
    |
    3ms
    |
    148ms
  • 23.95.73.230

    BrainStorm Network, Inc

    AS136258

    Dallas

    32.7831, -96.8067

    100% uptime

    125ms
    |
    2ms
    |
    82ms
  • 23.95.73.238

    BrainStorm Network, Inc

    AS136258

    Dallas

    32.7831, -96.8067

    100% uptime

    124ms
    |
    2ms
    |
    87ms
  • 23.95.73.242

    BrainStorm Network, Inc

    AS136258

    Dallas

    32.7831, -96.8067

    100% uptime

    122ms
    |
    2ms
    |
    86ms
  • 23.131.132.3

    SpectrumVoIP Inc

    AS396354

    Dallas

    32.7831, -96.8067

    100% uptime

    121ms
    |
    1ms
    |
    150ms
  • 23.150.248.56

    GTHost

    AS63023

    Dallas

    32.7831, -96.8067

    100% uptime

    117ms
    |
    3ms
    |
    146ms
  • 23.150.248.78

    GTHost

    AS63023

    Dallas

    32.7831, -96.8067

    100% uptime

    118ms
    |
    3ms
    |
    137ms
  • 23.254.131.152

    Hostwinds LLC.

    AS54290

    Dallas

    32.7831, -96.8067

    99% uptime

    133ms
    |
    5ms
    |
    150ms
  • 23.254.166.11

    Hostwinds LLC.

    AS54290

    Dallas

    32.7831, -96.8067

    100% uptime

    131ms
    |
    5ms
    |
    153ms
  • 23.254.203.67

    Hostwinds LLC.

    AS54290

    Dallas

    32.7831, -96.8067

    98% uptime

    128ms
    |
    3ms
    |
    147ms
  • 24.173.28.54

    Charter Communications Inc

    AS11427

    Dallas

    32.7831, -96.8067

    96% uptime

    150ms
    |
    12ms
    |
    243ms
  • 32.140.65.174

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    140ms
    |
    4ms
    |
    41ms
  • 37.19.200.87

    Datacamp Limited

    AS212238

    Dallas

    32.7831, -96.8067

    100% uptime

    119ms
    |
    3ms
    |
    138ms
  • 38.64.4.245

    WEBBING USA, INC.

    AS393559

    Dallas

    32.7831, -96.8067

    100% uptime

    216ms
    |
    7ms
    |
    178ms
  • 38.64.5.46

    WEBBING USA, INC.

    AS393559

    Dallas

    32.7831, -96.8067

    100% uptime

    302ms
    |
    67ms
    |
    288ms
  • 38.133.199.147

    Cloudmylab.com

    AS22369

    Dallas

    32.7831, -96.8067

    98% uptime

    130ms
    |
    13ms
    |
    50ms
  • 38.133.199.149

    Cloudmylab.com

    AS22369

    Dallas

    32.7831, -96.8067

    98% uptime

    128ms
    |
    5ms
    |
    50ms
  • 38.248.65.24

    Cogent Communications, LLC

    AS174

    Dallas

    32.7831, -96.8067

    98% uptime

    145ms
    |
    2ms
    |
    180ms
  • 45.32.196.153

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    99% uptime

    140ms
    |
    3ms
    |
    96ms
  • 45.32.196.223

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    96% uptime

    138ms
    |
    5ms
    |
    84ms
  • 45.32.198.141

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    99% uptime

    143ms
    |
    16ms
    |
    88ms
  • 45.32.200.243

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    99% uptime

    143ms
    |
    4ms
    |
    83ms
  • 45.32.207.139

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    98% uptime

    136ms
    |
    4ms
    |
    90ms
  • 52.116.20.88

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    155ms
  • 52.116.172.228

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    159ms
  • 52.117.35.52

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    134ms
    |
    1ms
    |
    156ms
  • 52.118.6.133

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    98% uptime

    137ms
    |
    2ms
    |
    91ms
  • 52.118.6.138

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    80ms
  • 52.118.37.194

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    162ms
  • 52.118.37.195

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    154ms
  • 52.118.37.196

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    154ms
  • 52.118.37.197

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    134ms
    |
    1ms
    |
    157ms
  • 52.118.37.203

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    135ms
    |
    2ms
    |
    154ms
  • 52.118.37.204

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    149ms
  • 52.118.37.208

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    131ms
    |
    1ms
    |
    170ms
  • 52.118.37.212

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    155ms