DNS Servers

United States of America 4328 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

  • 174.141.215.244

    T-Mobile USA, Inc.

    AS21928

    Chicago

    41.8500, -87.6500

    98% uptime

    168ms
    |
    21ms
    |
    180ms
  • 174.182.14.101

    Comcast Cable Communications, LLC

    AS7922

    Chicago

    41.8500, -87.6500

    96% uptime

    136ms
    |
    9ms
    |
    298ms
  • 181.215.89.126

    Hivelocity LLC

    AS61317

    Chicago

    41.8500, -87.6500

    100% uptime

    112ms
    |
    10ms
    |
    164ms
  • 190.102.110.194

    HIVELOCITY, Inc.

    AS29802

    Chicago

    41.8500, -87.6500

    100% uptime

    118ms
    |
    9ms
    |
    152ms
  • 191.96.43.254

    Hivelocity LLC

    AS61317

    Chicago

    41.8500, -87.6500

    100% uptime

    119ms
    |
    2ms
    |
    162ms
  • 204.44.100.3

    HostPapa

    AS36352

    Chicago

    41.8500, -87.6500

    100% uptime

    100ms
    |
    1ms
    |
    210ms
  • 205.178.76.117

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    99% uptime

    124ms
    |
    4ms
    |
    165ms
  • 205.178.78.183

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    98% uptime

    124ms
    |
    5ms
    |
    179ms
  • 205.178.97.53

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    96% uptime

    120ms
    |
    4ms
    |
    194ms
  • 205.178.112.98

    RCN

    AS6079

    Chicago

    41.8500, -87.6500

    100% uptime

    122ms
    |
    5ms
    |
    177ms
  • 207.121.6.84

    Level 3 Parent, LLC

    AS3356

    Chicago

    41.8500, -87.6500

    100% uptime

    117ms
    |
    6ms
    |
    83ms
  • 207.121.59.148

    Level 3 Parent, LLC

    AS3356

    Chicago

    41.8500, -87.6500

    100% uptime

    113ms
    |
    11ms
    |
    90ms
  • 207.211.188.53

    Oracle Corporation

    AS31898

    Chicago

    41.8500, -87.6500

    99% uptime

    112ms
    |
    2ms
    |
    97ms
  • 208.100.30.194

    HIVELOCITY, Inc.

    AS29802

    Chicago

    41.8500, -87.6500

    100% uptime

    115ms
    |
    8ms
    |
    167ms
  • 208.100.42.158

    HIVELOCITY, Inc.

    AS29802

    Chicago

    41.8500, -87.6500

    100% uptime

    114ms
    |
    9ms
    |
    157ms
  • 208.117.38.205

    BigScoots

    AS394303

    Chicago

    41.8500, -87.6500

    100% uptime

    114ms
    |
    4ms
    |
    16ms
  • 209.71.173.93

    Surf Air Wireless, LLC

    AS13428

    Chicago

    41.8500, -87.6500

    100% uptime

    118ms
    |
    7ms
    |
    45ms
  • 198.38.63.4

    Chickamauga Telephone Corporation

    AS54512

    Chickamauga

    34.8712, -85.2908

    100% uptime

    104ms
    |
    3ms
    |
    140ms
  • 204.14.139.101

    UTILITY TELEPHONE, INC.

    AS23308

    Chico

    39.7285, -121.8375

    98% uptime

    173ms
    |
    2ms
    |
    187ms
  • 74.62.29.166

    Charter Communications Inc

    AS20001

    Chino

    34.0122, -117.6889

    100% uptime

    175ms
    |
    14ms
    |
    256ms
  • 32.141.40.202

    AT&T Enterprises, LLC

    AS7018

    Cicero

    41.8456, -87.7539

    100% uptime

    119ms
    |
    2ms
    |
    155ms
  • 32.141.40.250

    AT&T Enterprises, LLC

    AS7018

    Cicero

    41.8456, -87.7539

    100% uptime

    116ms
    |
    1ms
    |
    158ms
  • 99.124.237.73

    AT&T Enterprises, LLC

    AS7018

    Cicero

    41.8456, -87.7539

    98% uptime

    112ms
    |
    2ms
    |
    247ms
  • 12.187.219.19

    AT&T Enterprises, LLC

    AS7018

    Cincinnati

    39.1271, -84.5144

    100% uptime

    119ms
    |
    0ms
    |
    89ms
  • 70.36.36.231

    Zimcom Network Solutions Inc.

    AS30059

    Cincinnati

    39.1271, -84.5144

    96% uptime

    118ms
    |
    2ms
    |
    20ms
  • 96.11.132.210

    Charter Communications Inc

    AS10796

    Cincinnati

    39.1271, -84.5144

    98% uptime

    132ms
    |
    2ms
    |
    124ms
  • 162.155.55.98

    Charter Communications Inc

    AS10796

    Cincinnati

    39.1271, -84.5144

    98% uptime

    135ms
    |
    3ms
    |
    331ms
  • 12.154.250.19

    AT&T Enterprises, LLC

    AS7018

    Cisco

    32.3882, -98.9792

    100% uptime

    147ms
    |
    2ms
    |
    185ms
  • 173.166.109.37

    Comcast Cable Communications, LLC

    AS7922

    Claremont

    43.3767, -72.3468

    100% uptime

    110ms
    |
    2ms
    |
    208ms
  • 180.181.51.20

    CABLE ONE, INC.

    AS11492

    Clarksdale

    34.2001, -90.5709

    98% uptime

    152ms
    |
    2ms
    |
    123ms
  • 69.166.183.70

    CLARKSVILLE DEPARTMENT OF ELECTRICITY

    AS40749

    Clarksville

    36.5298, -87.3594

    100% uptime

    113ms
    |
    2ms
    |
    132ms
  • 208.88.172.221

    CLARKSVILLE DEPARTMENT OF ELECTRICITY

    AS40749

    Clarksville

    36.5298, -87.3594

    100% uptime

    114ms
    |
    1ms
    |
    22ms
  • 159.242.42.49

    Northland Communications Inc.

    AS394907

    Clear Lake

    43.1380, -93.3794

    100% uptime

    110ms
    |
    9ms
    |
    162ms
  • 159.242.48.186

    Northland Communications Inc.

    AS394907

    Clear Lake

    43.1380, -93.3794

    100% uptime

    110ms
    |
    9ms
    |
    56ms
  • 107.144.159.214

    Charter Communications, Inc

    AS33363

    Clearwater

    27.9658, -82.8001

    98% uptime

    133ms
    |
    4ms
    |
    210ms
  • 12.20.203.2

    AT&T Enterprises, LLC

    AS7018

    Cleveland

    30.3413, -95.0855

    100% uptime

    144ms
    |
    3ms
    |
    184ms
  • 38.191.171.109

    Western Reserve Communications, LLC

    AS399541

    Cleveland

    41.4995, -81.6954

    100% uptime

    93ms
    |
    8ms
    |
    123ms
  • 40.134.15.111

    Windstream Communications LLC

    AS7029

    Cleveland

    41.4995, -81.6954

    100% uptime

    98ms
    |
    3ms
    |
    155ms
  • 70.61.190.242

    Charter Communications Inc

    AS10796

    Cleveland

    41.4995, -81.6954

    100% uptime

    112ms
    |
    27ms
    |
    96ms
  • 72.172.4.147

    Windstream Communications LLC

    AS7029

    Cleveland

    34.5970, -83.7632

    99% uptime

    149ms
    |
    7ms
    |
    202ms
  • 75.89.45.188

    Windstream Communications LLC

    AS7029

    Cleveland

    41.4995, -81.6954

    99% uptime

    111ms
    |
    3ms
    |
    159ms
  • 98.19.181.101

    Windstream Communications LLC

    AS7029

    Cleveland

    41.4995, -81.6954

    98% uptime

    113ms
    |
    3ms
    |
    158ms
  • 147.0.22.82

    Charter Communications Inc

    AS10796

    Cleveland

    41.4995, -81.6954

    100% uptime

    118ms
    |
    9ms
    |
    176ms
  • 162.155.161.18

    Charter Communications Inc

    AS10796

    Cleveland

    41.4995, -81.6954

    100% uptime

    126ms
    |
    4ms
    |
    112ms
  • 180.181.111.244

    CABLE ONE, INC.

    AS11492

    Cleveland

    33.7440, -90.7248

    100% uptime

    156ms
    |
    3ms
    |
    89ms
  • 192.34.173.87

    North Georgia Network Cooperative, Inc.

    AS54665

    Cleveland

    34.5970, -83.7632

    96% uptime

    124ms
    |
    2ms
    |
    26ms
  • 208.88.44.6

    NetX Internet, LLC.

    AS53451

    Cleveland

    41.4995, -81.6954

    99% uptime

    93ms
    |
    8ms
    |
    150ms
  • 45.55.33.64

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    105ms
  • 45.55.68.52

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    129ms
  • 45.55.73.76

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    96% uptime

    84ms
    |
    2ms
    |
    106ms
  • 45.55.223.166

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    13ms
  • 45.55.237.82

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    86ms
    |
    2ms
    |
    51ms
  • 64.225.61.235

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    134ms
  • 68.183.158.173

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    62ms
  • 104.131.82.154

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    46ms
  • 104.236.27.13

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    46ms
  • 104.236.64.20

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    98% uptime

    84ms
    |
    2ms
    |
    54ms
  • 134.209.42.144

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    98% uptime

    85ms
    |
    2ms
    |
    117ms
  • 138.197.17.31

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    48ms
  • 138.197.76.71

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    47ms
  • 138.197.98.125

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    48ms
  • 138.197.109.254

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    128ms
  • 138.197.111.217

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    93ms
  • 142.93.179.219

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    99% uptime

    84ms
    |
    2ms
    |
    29ms
  • 142.93.184.226

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    127ms
  • 143.198.28.145

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    86ms
    |
    2ms
    |
    62ms
  • 157.245.1.68

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    130ms
  • 157.245.5.172

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    134ms
  • 159.65.245.33

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    36ms
  • 159.203.84.204

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    99% uptime

    85ms
    |
    2ms
    |
    26ms
  • 159.203.116.27

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8344, -74.1377

    100% uptime

    85ms
    |
    2ms
    |
    60ms
  • 159.203.144.85

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    5ms
    |
    130ms
  • 159.203.168.133

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    53ms
  • 165.22.35.137

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    46ms
  • 165.227.73.188

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    128ms
  • 167.71.99.98

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    44ms
  • 167.71.107.58

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    51ms
  • 167.172.31.58

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    47ms
  • 167.172.225.115

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    85ms
    |
    2ms
    |
    43ms
  • 167.172.236.125

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    42ms
  • 174.138.92.207

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    11ms
  • 209.97.158.245

    DigitalOcean, LLC

    AS14061

    Clifton

    40.8584, -74.1638

    100% uptime

    84ms
    |
    2ms
    |
    130ms
  • 199.101.50.22

    HostRocket.com, Inc.

    AS23535

    Clifton Park

    42.8656, -73.7709

    99% uptime

    91ms
    |
    10ms
    |
    75ms
  • 199.101.50.23

    HostRocket.com, Inc.

    AS23535

    Clifton Park

    42.8656, -73.7709

    99% uptime

    90ms
    |
    9ms
    |
    83ms
  • 73.227.142.224

    Comcast Cable Communications, LLC

    AS7922

    Clinton

    41.2787, -72.5276

    100% uptime

    124ms
    |
    2ms
    |
    219ms
  • 74.50.132.45

    Plateau Telecommunications Incorporated

    AS21782

    Clovis

    34.4048, -103.2052

    98% uptime

    147ms
    |
    2ms
    |
    411ms
  • 74.50.142.110

    Plateau Telecommunications Incorporated

    AS21782

    Clovis

    34.4048, -103.2052

    100% uptime

    136ms
    |
    10ms
    |
    48ms
  • 24.103.140.3

    Charter Communications Inc

    AS11351

    Cobleskill

    42.6778, -74.4854

    100% uptime

    130ms
    |
    4ms
    |
    118ms
  • 23.92.4.46

    WireStar, Inc.

    AS62646

    College Station

    30.6280, -96.3344

    98% uptime

    153ms
    |
    5ms
    |
    149ms
  • 173.219.163.66

    Optimum

    AS19108

    College Station

    30.6280, -96.3344

    100% uptime

    139ms
    |
    4ms
    |
    159ms
  • 199.101.240.137

    Fibertown

    AS19366

    College Station

    30.5118, -96.3171

    100% uptime

    123ms
    |
    2ms
    |
    146ms
  • 71.246.13.36

    Verizon Business

    AS701

    Collegeville

    40.1857, -75.4516

    99% uptime

    108ms
    |
    2ms
    |
    123ms
  • 74.93.150.185

    Comcast Cable Communications, LLC

    AS7922

    Collierville

    35.0420, -89.6645

    96% uptime

    155ms
    |
    5ms
    |
    163ms
  • 71.62.106.8

    Comcast Cable Communications, LLC

    AS7922

    Collinsville

    36.7151, -79.9153

    100% uptime

    122ms
    |
    6ms
    |
    214ms
  • 73.153.110.91

    Comcast Cable Communications, LLC

    AS7922

    Colorado Springs

    38.8339, -104.8214

    98% uptime

    152ms
    |
    9ms
    |
    330ms
  • 76.25.162.43

    Comcast Cable Communications, LLC

    AS7922

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    148ms
    |
    12ms
    |
    49ms
  • 199.117.238.210

    CenturyLink Communications, LLC

    AS209

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    142ms
    |
    13ms
    |
    39ms
  • 216.229.35.65

    PCI Fiber, LLC

    AS7832

    Colorado Springs

    38.8339, -104.8214

    100% uptime

    136ms
    |
    9ms
    |
    200ms
  • 47.13.44.40

    Charter Communications LLC

    AS20115

    Columbia

    35.6151, -87.0353

    100% uptime

    147ms
    |
    3ms
    |
    160ms
  • 64.85.197.179

    Socket Holdings Corporation

    AS4581

    Columbia

    38.9517, -92.3341

    100% uptime

    125ms
    |
    9ms
    |
    48ms