DNS Servers

United States of America 4611 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

  • 164.90.138.110

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    118ms
  • 165.227.73.188

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    126ms
  • 167.71.107.58

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    45ms
  • 167.71.247.172

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    99% uptime

    84ms
    |
    2ms
    |
    139ms
  • 167.172.31.58

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    46ms
  • 167.172.225.115

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    86ms
    |
    2ms
    |
    92ms
  • 167.172.236.125

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    116ms
  • 174.138.54.218

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    86ms
    |
    2ms
    |
    95ms
  • 199.101.48.17

    HostRocket.com, Inc.

    AS23535

    Clifton Park

    42.8656, -73.7709

    88% uptime

    90ms
    |
    0ms
    |
    70ms
  • 50.147.97.210

    Comcast Cable Communications, LLC

    AS7922

    Clovis

    36.8252, -119.7029

    100% uptime

    173ms
    |
    1ms
    |
    120ms
  • 148.64.39.96

    TELSTAR1 INTERNET SERVICES

    AS32624

    Clyde

    32.4060, -99.4937

    88% uptime

    149ms
    |
    3ms
    |
    189ms
  • 173.219.163.66

    Optimum

    AS19108

    College Station

    30.6280, -96.3344

    100% uptime

    133ms
    |
    0ms
    |
    155ms
  • 173.219.163.71

    Optimum

    AS19108

    College Station

    30.6280, -96.3344

    99% uptime

    135ms
    |
    2ms
    |
    155ms
  • 199.101.240.137

    Fibertown

    AS19366

    College Station

    30.5118, -96.3171

    100% uptime

    122ms
    |
    1ms
    |
    146ms
  • 71.246.13.36

    Verizon Business

    AS701

    Collegeville

    40.1857, -75.4516

    100% uptime

    110ms
    |
    2ms
    |
    104ms
  • 199.19.235.168

    Northeast Louisiana Telephone Company, Inc.

    AS22464

    Collinston

    32.6910, -91.8718

    88% uptime

    121ms
    |
    8ms
    |
    162ms
  • 174.166.15.251

    Comcast Cable Communications, LLC

    AS7922

    Colonia

    40.5746, -74.3021

    98% uptime

    110ms
    |
    9ms
    |
    209ms
  • 38.59.210.107

    Sumofiber

    AS4226

    Colorado Springs

    38.8339, -104.8214

    94% uptime

    136ms
    |
    0ms
    |
    186ms
  • 75.70.104.174

    Comcast Cable Communications, LLC

    AS7922

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    155ms
    |
    1ms
    |
    304ms
  • 76.25.162.43

    Comcast Cable Communications, LLC

    AS7922

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    153ms
    |
    1ms
    |
    49ms
  • 107.2.184.254

    Comcast Cable Communications, LLC

    AS7922

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    146ms
    |
    3ms
    |
    264ms
  • 199.117.238.210

    CenturyLink Communications, LLC

    AS209

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    143ms
    |
    1ms
    |
    45ms
  • 216.229.35.65

    PCI Fiber, LLC

    AS7832

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    138ms
    |
    2ms
    |
    205ms
  • 47.13.44.40

    Charter Communications LLC

    AS20115

    Columbia

    35.6151, -87.0353

    100% uptime

    149ms
    |
    2ms
    |
    194ms
  • 63.238.254.186

    CenturyLink Communications, LLC

    AS209

    Columbia

    38.9517, -92.3341

    94% uptime

    137ms
    |
    2ms
    |
    44ms
  • 64.85.197.179

    Socket Holdings Corporation

    AS4581

    Columbia

    38.9517, -92.3341

    100% uptime

    125ms
    |
    1ms
    |
    37ms
  • 71.179.89.254

    Verizon Business

    AS701

    Columbia

    39.2404, -76.8394

    99% uptime

    105ms
    |
    1ms
    |
    21ms
  • 76.9.168.56

    Columbia Power and Water Systems

    AS30264

    Columbia

    35.6151, -87.0353

    100% uptime

    132ms
    |
    3ms
    |
    97ms
  • 153.33.12.212

    PAVLOV MEDIA INC

    AS23473

    Columbia

    38.9517, -92.3341

    94% uptime

    118ms
    |
    0ms
    |
    181ms
  • 173.92.26.119

    Charter Communications Inc

    AS11426

    Columbia

    34.0007, -81.0348

    99% uptime

    129ms
    |
    3ms
    |
    127ms
  • 3.128.142.123

    Amazon.com, Inc.

    AS16509

    Columbus

    39.9612, -82.9988

    94% uptime

    114ms
    |
    0ms
    |
    198ms
  • 23.244.123.148

    Breezeline

    AS11776

    Columbus

    39.9612, -82.9988

    100% uptime

    120ms
    |
    4ms
    |
    222ms
  • 23.245.248.15

    Breezeline

    AS11776

    Columbus

    39.9612, -82.9988

    100% uptime

    125ms
    |
    3ms
    |
    57ms
  • 24.214.227.242

    WideOpenWest Finance LLC

    AS12083

    Columbus

    39.9612, -82.9988

    100% uptime

    116ms
    |
    0ms
    |
    171ms
  • 65.60.206.186

    Breezeline

    AS11776

    Columbus

    39.9612, -82.9988

    100% uptime

    126ms
    |
    5ms
    |
    287ms
  • 68.44.0.153

    Comcast Cable Communications, LLC

    AS7922

    Columbus

    39.2014, -85.9214

    98% uptime

    149ms
    |
    2ms
    |
    270ms
  • 69.73.14.64

    WideOpenWest Finance LLC

    AS12083

    Columbus

    32.4610, -84.9877

    100% uptime

    136ms
    |
    3ms
    |
    363ms
  • 70.63.16.146

    Charter Communications Inc

    AS10796

    Columbus

    39.9612, -82.9988

    99% uptime

    132ms
    |
    7ms
    |
    213ms
  • 75.117.214.194

    Windstream Communications LLC

    AS7029

    Columbus

    39.9612, -82.9988

    100% uptime

    119ms
    |
    2ms
    |
    183ms
  • 98.103.116.50

    Charter Communications Inc

    AS10796

    Columbus

    39.9612, -82.9988

    100% uptime

    130ms
    |
    0ms
    |
    73ms
  • 135.84.86.17

    GeoStar, LLC.

    AS22062

    Columbus

    39.9612, -82.9988

    99% uptime

    106ms
    |
    0ms
    |
    157ms
  • 173.45.116.27

    eNET Inc.

    AS10297

    Columbus

    39.9612, -82.9988

    100% uptime

    109ms
    |
    12ms
    |
    93ms
  • 207.182.143.4

    eNET Inc.

    AS10297

    Columbus

    39.9612, -82.9988

    100% uptime

    114ms
    |
    3ms
    |
    116ms
  • 64.239.136.198

    Tierzero

    AS11509

    Commerce

    34.0006, -118.1598

    99% uptime

    142ms
    |
    2ms
    |
    146ms
  • 154.21.204.62

    Cogent Communications, LLC

    AS174

    Commerce

    34.0006, -118.1598

    100% uptime

    150ms
    |
    29ms
    |
    119ms
  • 154.21.207.51

    Cogent Communications, LLC

    AS174

    Commerce

    34.0006, -118.1598

    100% uptime

    168ms
    |
    3ms
    |
    70ms
  • 207.215.49.3

    AT&T Enterprises, LLC

    AS7018

    Commerce

    34.0006, -118.1598

    100% uptime

    168ms
    |
    2ms
    |
    53ms
  • 199.117.62.162

    CenturyLink Communications, LLC

    AS209

    Commerce City

    39.8083, -104.9339

    100% uptime

    138ms
    |
    1ms
    |
    70ms
  • 204.194.217.61

    North Texas Fiber, Inc

    AS397161

    Concord

    35.4089, -80.5816

    88% uptime

    116ms
    |
    5ms
    |
    144ms
  • 204.194.218.254

    North Texas Fiber, Inc

    AS397161

    Concord

    35.4089, -80.5816

    100% uptime

    115ms
    |
    5ms
    |
    128ms
  • 76.164.119.59

    Fidium

    AS6300

    Conroe

    30.3119, -95.4561

    100% uptime

    122ms
    |
    2ms
    |
    168ms
  • 207.70.155.18

    Fidium

    AS6300

    Conroe

    30.3119, -95.4561

    100% uptime

    122ms
    |
    1ms
    |
    142ms
  • 24.144.5.242

    Conway Corporation

    AS12231

    Conway

    35.0887, -92.4421

    98% uptime

    145ms
    |
    1ms
    |
    40ms
  • 192.227.89.230

    Cloud South

    AS13886

    Coral Springs

    26.2712, -80.2706

    100% uptime

    131ms
    |
    12ms
    |
    178ms
  • 192.227.89.233

    Cloud South

    AS13886

    Coral Springs

    26.2712, -80.2706

    99% uptime

    130ms
    |
    60ms
    |
    180ms
  • 104.34.47.99

    Charter Communications Inc

    AS20001

    Corona

    33.8753, -117.5664

    99% uptime

    180ms
    |
    3ms
    |
    259ms
  • 12.52.85.210

    AT&T Enterprises, LLC

    AS7018

    Corpus Christi

    27.8006, -97.3964

    98% uptime

    147ms
    |
    10ms
    |
    96ms
  • 107.222.183.9

    AT&T Enterprises, LLC

    AS7018

    Corpus Christi

    27.8006, -97.3964

    100% uptime

    142ms
    |
    0ms
    |
    21ms
  • 107.222.183.10

    AT&T Enterprises, LLC

    AS7018

    Corpus Christi

    27.8006, -97.3964

    100% uptime

    142ms
    |
    0ms
    |
    17ms
  • 107.222.183.11

    AT&T Enterprises, LLC

    AS7018

    Corpus Christi

    27.8006, -97.3964

    100% uptime

    145ms
    |
    1ms
    |
    17ms
  • 107.222.183.12

    AT&T Enterprises, LLC

    AS7018

    Corpus Christi

    27.8006, -97.3964

    100% uptime

    143ms
    |
    6ms
    |
    16ms
  • 12.244.74.34

    AT&T Enterprises, LLC

    AS7018

    Costa Mesa

    33.6411, -117.9187

    99% uptime

    175ms
    |
    5ms
    |
    69ms
  • 208.66.246.190

    West Ky Networks

    AS22408

    Cottage Grove

    36.3792, -88.4792

    100% uptime

    116ms
    |
    0ms
    |
    56ms
  • 152.37.231.65

    CABLE ONE, INC.

    AS11492

    Cottonwood

    34.7392, -112.0099

    100% uptime

    171ms
    |
    2ms
    |
    93ms
  • 152.37.242.42

    CABLE ONE, INC.

    AS11492

    Cottonwood

    34.7392, -112.0099

    94% uptime

    168ms
    |
    2ms
    |
    136ms
  • 34.31.223.26

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    114ms
    |
    3ms
    |
    197ms
  • 34.70.43.125

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    99% uptime

    114ms
    |
    3ms
    |
    173ms
  • 34.71.86.126

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    114ms
    |
    3ms
    |
    171ms
  • 34.121.197.148

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    114ms
    |
    3ms
    |
    190ms
  • 34.133.89.91

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    113ms
    |
    0ms
    |
    202ms
  • 35.193.147.54

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    113ms
    |
    0ms
    |
    194ms
  • 35.202.181.94

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    114ms
    |
    3ms
    |
    176ms
  • 35.208.27.225

    Google LLC

    AS15169

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    121ms
    |
    2ms
    |
    36ms
  • 35.208.133.28

    Google LLC

    AS15169

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    118ms
    |
    2ms
    |
    30ms
  • 35.223.194.56

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    113ms
    |
    3ms
    |
    196ms
  • 35.225.144.215

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    114ms
    |
    3ms
    |
    40ms
  • 35.232.213.141

    Google LLC

    AS396982

    Council Bluffs

    41.2619, -95.8608

    100% uptime

    114ms
    |
    0ms
    |
    144ms
  • 12.178.223.230

    AT&T Enterprises, LLC

    AS7018

    Country Club Hills

    41.5681, -87.7203

    100% uptime

    117ms
    |
    4ms
    |
    57ms
  • 12.53.103.145

    AT&T Enterprises, LLC

    AS7018

    Coweta

    35.9518, -95.6508

    100% uptime

    140ms
    |
    2ms
    |
    176ms
  • 173.71.185.211

    Verizon Business

    AS701

    Crafton

    40.4351, -80.0662

    100% uptime

    111ms
    |
    0ms
    |
    52ms
  • 69.174.229.85

    Emily Cooperative Telephone Company

    AS63330

    Crosslake

    46.6594, -94.1139

    100% uptime

    123ms
    |
    0ms
    |
    111ms
  • 12.15.231.94

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    141ms
    |
    3ms
    |
    160ms
  • 12.22.184.97

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    148ms
    |
    37ms
    |
    34ms
  • 12.24.249.57

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    99% uptime

    136ms
    |
    10ms
    |
    155ms
  • 12.66.31.165

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    145ms
    |
    1ms
    |
    202ms
  • 12.79.127.70

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    150ms
    |
    2ms
    |
    32ms
  • 12.89.10.142

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    99% uptime

    136ms
    |
    5ms
    |
    155ms
  • 12.126.83.42

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    140ms
    |
    1ms
    |
    158ms
  • 12.132.91.170

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    99% uptime

    139ms
    |
    1ms
    |
    158ms
  • 12.144.79.61

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    144ms
    |
    1ms
    |
    87ms
  • 12.157.177.250

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    98% uptime

    157ms
    |
    3ms
    |
    113ms
  • 12.157.177.251

    AT&T Enterprises, LLC

    AS7018

    Dallas

    32.7831, -96.8067

    100% uptime

    158ms
    |
    8ms
    |
    111ms
  • 23.92.76.70

    HIVELOCITY, Inc.

    AS29802

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    143ms
  • 23.95.73.230

    BrainStorm Network, Inc

    AS136258

    Dallas

    32.7831, -96.8067

    99% uptime

    122ms
    |
    2ms
    |
    87ms
  • 23.95.73.238

    BrainStorm Network, Inc

    AS136258

    Dallas

    32.7831, -96.8067

    100% uptime

    124ms
    |
    1ms
    |
    89ms
  • 23.150.248.43

    GTHost

    AS63023

    Dallas

    32.7831, -96.8067

    100% uptime

    117ms
    |
    1ms
    |
    132ms
  • 23.150.248.56

    GTHost

    AS63023

    Dallas

    32.7831, -96.8067

    100% uptime

    116ms
    |
    2ms
    |
    137ms
  • 23.150.248.78

    GTHost

    AS63023

    Dallas

    32.7831, -96.8067

    99% uptime

    116ms
    |
    2ms
    |
    143ms
  • 23.254.129.112

    Hostwinds LLC.

    AS54290

    Dallas

    32.7831, -96.8067

    94% uptime

    120ms
    |
    1ms
    |
    153ms
  • 23.254.131.152

    Hostwinds LLC.

    AS54290

    Dallas

    32.7831, -96.8067

    100% uptime

    120ms
    |
    1ms
    |
    140ms