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

  • 66.42.81.62

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    1ms
    |
    43ms
  • 66.42.82.50

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    117ms
    |
    0ms
    |
    128ms
  • 66.42.82.142

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    1ms
    |
    38ms
  • 66.42.83.12

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    0ms
    |
    42ms
  • 66.42.86.235

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    116ms
    |
    0ms
    |
    48ms
  • 66.42.91.252

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    122ms
    |
    1ms
    |
    23ms
  • 66.42.92.137

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    0ms
    |
    33ms
  • 66.42.94.199

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    1ms
    |
    39ms
  • 67.191.182.200

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    100% uptime

    132ms
    |
    3ms
    |
    248ms
  • 69.61.12.197

    Cyber Wurx LLC

    AS22653

    Atlanta

    33.7490, -84.3880

    99% uptime

    120ms
    |
    0ms
    |
    149ms
  • 69.61.12.244

    Cyber Wurx LLC

    AS22653

    Atlanta

    33.7490, -84.3880

    99% uptime

    121ms
    |
    1ms
    |
    144ms
  • 69.61.33.233

    Cyber Wurx LLC

    AS22653

    Atlanta

    33.7490, -84.3880

    99% uptime

    119ms
    |
    1ms
    |
    149ms
  • 71.7.101.164

    Windstream Communications LLC

    AS7029

    Atlanta

    33.7490, -84.3880

    100% uptime

    106ms
    |
    3ms
    |
    166ms
  • 71.204.18.121

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    88% uptime

    138ms
    |
    6ms
    |
    342ms
  • 74.207.233.6

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    1ms
    |
    30ms
  • 74.207.236.107

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    1ms
    |
    149ms
  • 74.217.40.25

    Unitas Global

    AS14745

    Atlanta

    33.7490, -84.3880

    100% uptime

    110ms
    |
    1ms
    |
    131ms
  • 74.217.40.47

    Unitas Global

    AS14745

    Atlanta

    33.7490, -84.3880

    100% uptime

    110ms
    |
    1ms
    |
    113ms
  • 96.30.193.213

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    1ms
    |
    40ms
  • 96.30.194.127

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    1ms
    |
    25ms
  • 96.84.189.29

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    100% uptime

    126ms
    |
    2ms
    |
    116ms
  • 98.251.110.29

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    99% uptime

    125ms
    |
    4ms
    |
    83ms
  • 104.156.254.98

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    0ms
    |
    40ms
  • 104.156.254.221

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    1ms
    |
    24ms
  • 104.156.255.238

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    28ms
  • 107.174.204.206

    HostPapa

    AS36352

    Atlanta

    33.7490, -84.3880

    94% uptime

    104ms
    |
    2ms
    |
    60ms
  • 107.191.126.102

    InMotion Hosting, Inc.

    AS3842

    Atlanta

    33.7490, -84.3880

    100% uptime

    106ms
    |
    5ms
    |
    115ms
  • 108.61.193.38

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    1ms
    |
    124ms
  • 108.61.193.73

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    1ms
    |
    31ms
  • 139.144.53.252

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    99% uptime

    124ms
    |
    0ms
    |
    21ms
  • 142.44.94.18

    NETWORK INNOVATIONS, LLC

    AS53828

    Atlanta

    33.7490, -84.3880

    100% uptime

    112ms
    |
    0ms
    |
    75ms
  • 144.202.17.15

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    0ms
    |
    42ms
  • 144.202.19.5

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    0ms
    |
    47ms
  • 144.202.22.117

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    1ms
    |
    129ms
  • 144.202.27.20

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    0ms
    |
    24ms
  • 144.202.28.49

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    1ms
    |
    37ms
  • 144.202.29.75

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    43ms
  • 147.45.60.199

    GLOBAL CONNECTIVITY SOLUTIONS LLP

    AS215540

    Atlanta

    33.7490, -84.3880

    100% uptime

    100ms
    |
    1ms
    |
    61ms
  • 155.138.160.94

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    1ms
    |
    43ms
  • 155.138.162.139

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    0ms
    |
    50ms
  • 155.138.163.155

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    122ms
    |
    0ms
    |
    40ms
  • 155.138.165.30

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    120ms
    |
    1ms
    |
    38ms
  • 155.138.165.77

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    1ms
    |
    46ms
  • 155.138.174.151

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    121ms
    |
    1ms
    |
    37ms
  • 155.138.174.248

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    1ms
    |
    44ms
  • 155.138.194.178

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    0ms
    |
    28ms
  • 155.138.197.253

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    116ms
    |
    2ms
    |
    45ms
  • 155.138.200.204

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    119ms
    |
    1ms
    |
    25ms
  • 155.138.201.117

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    94% uptime

    117ms
    |
    2ms
    |
    28ms
  • 155.138.208.45

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    119ms
    |
    2ms
    |
    41ms
  • 155.138.209.156

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    1ms
    |
    43ms
  • 155.138.212.53

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    119ms
    |
    2ms
    |
    37ms
  • 155.138.220.113

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    116ms
    |
    2ms
    |
    38ms
  • 155.138.227.84

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    36ms
  • 155.138.229.39

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    132ms
  • 155.138.230.105

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    30ms
  • 155.138.230.108

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    120ms
    |
    1ms
    |
    42ms
  • 155.138.234.78

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    116ms
    |
    1ms
    |
    45ms
  • 155.138.235.96

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    118ms
    |
    0ms
    |
    44ms
  • 155.138.235.155

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    94% uptime

    122ms
    |
    0ms
    |
    29ms
  • 162.241.87.239

    Network Solutions, LLC

    AS19871

    Atlanta

    33.7490, -84.3880

    100% uptime

    112ms
    |
    1ms
    |
    144ms
  • 162.241.124.154

    Network Solutions, LLC

    AS19871

    Atlanta

    33.7490, -84.3880

    100% uptime

    112ms
    |
    0ms
    |
    127ms
  • 170.187.134.13

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    99% uptime

    118ms
    |
    1ms
    |
    0ms
  • 170.187.155.162

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    115ms
    |
    0ms
    |
    131ms
  • 170.187.158.214

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    94% uptime

    112ms
    |
    0ms
    |
    126ms
  • 170.249.217.43

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    100% uptime

    103ms
    |
    2ms
    |
    111ms
  • 170.249.217.44

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    100% uptime

    103ms
    |
    2ms
    |
    110ms
  • 170.249.217.45

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    99% uptime

    104ms
    |
    3ms
    |
    111ms
  • 170.249.217.46

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    99% uptime

    104ms
    |
    1ms
    |
    111ms
  • 172.105.158.222

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    0ms
    |
    145ms
  • 173.230.128.171

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    0ms
    |
    128ms
  • 185.152.66.105

    Datacamp Limited

    AS60068

    Atlanta

    33.7490, -84.3880

    100% uptime

    108ms
    |
    2ms
    |
    125ms
  • 192.155.92.211

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    1ms
    |
    55ms
  • 192.155.93.9

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    98% uptime

    118ms
    |
    1ms
    |
    130ms
  • 207.254.17.115

    MacStadium, Inc.

    AS395336

    Atlanta

    33.7490, -84.3880

    100% uptime

    100ms
    |
    1ms
    |
    30ms
  • 209.170.234.148

    Bigleaf Networks, Inc.

    AS62642

    Atlanta

    33.7490, -84.3880

    100% uptime

    148ms
    |
    4ms
    |
    118ms
  • 209.235.160.2

    Peace Communications LLC

    AS20448

    Atlanta

    33.7490, -84.3880

    100% uptime

    124ms
    |
    1ms
    |
    154ms
  • 216.75.251.122

    Bigleaf Networks, Inc.

    AS62642

    Atlanta

    33.7490, -84.3880

    100% uptime

    135ms
    |
    1ms
    |
    76ms
  • 130.17.54.200

    360 Broadband, LLC

    AS1441

    Atoka

    34.3859, -96.1283

    98% uptime

    140ms
    |
    2ms
    |
    208ms
  • 50.175.28.202

    Comcast Cable Communications, LLC

    AS7922

    Auburn

    47.3073, -122.2284

    100% uptime

    170ms
    |
    1ms
    |
    207ms
  • 69.84.254.202

    Accel Net, Inc.

    AS18647

    Auburn

    47.3073, -122.2284

    98% uptime

    145ms
    |
    8ms
    |
    192ms
  • 38.98.222.82

    Cogent Communications, LLC

    AS174

    Audubon

    40.1279, -75.4318

    100% uptime

    98ms
    |
    0ms
    |
    120ms
  • 50.228.62.1

    Comcast Cable Communications, LLC

    AS33652

    Aurora

    39.7294, -104.8319

    94% uptime

    146ms
    |
    0ms
    |
    170ms
  • 63.224.89.114

    CenturyLink Communications, LLC

    AS209

    Aurora

    39.7294, -104.8319

    100% uptime

    146ms
    |
    0ms
    |
    285ms
  • 73.243.2.119

    Comcast Cable Communications, LLC

    AS7922

    Aurora

    39.7294, -104.8319

    99% uptime

    153ms
    |
    2ms
    |
    198ms
  • 174.16.139.87

    CenturyLink Communications, LLC

    AS209

    Aurora

    39.7294, -104.8319

    100% uptime

    138ms
    |
    0ms
    |
    70ms
  • 209.212.53.167

    Aerux LLP

    AS63270

    Aurora

    39.7294, -104.8319

    100% uptime

    135ms
    |
    0ms
    |
    50ms
  • 12.144.205.186

    AT&T Enterprises, LLC

    AS7018

    Austin

    30.2672, -97.7431

    100% uptime

    145ms
    |
    1ms
    |
    88ms
  • 12.196.144.34

    AT&T Enterprises, LLC

    AS7018

    Austin

    30.2672, -97.7431

    98% uptime

    161ms
    |
    2ms
    |
    121ms
  • 24.173.73.98

    Charter Communications Inc

    AS11427

    Austin

    30.2672, -97.7431

    100% uptime

    143ms
    |
    6ms
    |
    189ms
  • 38.32.240.117

    Cogent Communications, LLC

    AS174

    Austin

    30.2672, -97.7431

    94% uptime

    146ms
    |
    0ms
    |
    177ms
  • 38.186.124.88

    Millennium Telcom LLC

    AS20135

    Austin

    30.2672, -97.7431

    100% uptime

    147ms
    |
    1ms
    |
    173ms
  • 64.132.6.174

    SATC COLO LLC

    AS53873

    Austin

    30.2672, -97.7431

    100% uptime

    129ms
    |
    0ms
    |
    184ms
  • 66.219.44.20

    zColo

    AS27325

    Austin

    30.2672, -97.7431

    99% uptime

    120ms
    |
    2ms
    |
    145ms
  • 97.77.70.148

    Charter Communications Inc

    AS11427

    Austin

    30.2672, -97.7431

    99% uptime

    137ms
    |
    3ms
    |
    185ms
  • 97.77.209.210

    Charter Communications Inc

    AS11427

    Austin

    30.2672, -97.7431

    100% uptime

    133ms
    |
    2ms
    |
    167ms
  • 104.182.31.4

    AT&T Enterprises, LLC

    AS7018

    Austin

    30.2672, -97.7431

    100% uptime

    137ms
    |
    1ms
    |
    164ms
  • 136.25.209.18

    Webpass Inc.

    AS19165

    Austin

    30.2672, -97.7431

    100% uptime

    132ms
    |
    1ms
    |
    125ms
  • 136.25.214.205

    Webpass Inc.

    AS19165

    Austin

    30.2672, -97.7431

    88% uptime

    129ms
    |
    0ms
    |
    174ms
  • 136.49.17.222

    Google Fiber Inc.

    AS16591

    Austin

    30.2672, -97.7431

    100% uptime

    129ms
    |
    1ms
    |
    164ms