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

  • 66.42.91.179

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    120ms
    |
    0ms
    |
    47ms
  • 66.42.92.137

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    3ms
    |
    48ms
  • 66.42.94.199

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    1ms
    |
    44ms
  • 69.49.245.156

    Network Solutions, LLC

    AS19871

    Atlanta

    33.7490, -84.3880

    100% uptime

    116ms
    |
    1ms
    |
    136ms
  • 69.61.12.197

    Cyber Wurx LLC

    AS22653

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    148ms
  • 69.61.12.244

    Cyber Wurx LLC

    AS22653

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    151ms
  • 69.61.33.233

    Cyber Wurx LLC

    AS22653

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    0ms
    |
    148ms
  • 72.11.230.66

    TPx Communications

    AS14265

    Atlanta

    33.7490, -84.3880

    96% uptime

    172ms
    |
    8ms
    |
    96ms
  • 73.106.11.87

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    96% uptime

    130ms
    |
    2ms
    |
    223ms
  • 73.237.208.198

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    98% uptime

    130ms
    |
    2ms
    |
    43ms
  • 74.207.227.73

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    96% uptime

    120ms
    |
    1ms
    |
    121ms
  • 74.207.236.107

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    99% uptime

    120ms
    |
    1ms
    |
    145ms
  • 74.217.40.25

    Unitas Global

    AS14745

    Atlanta

    33.7490, -84.3880

    99% uptime

    109ms
    |
    2ms
    |
    135ms
  • 74.217.40.47

    Unitas Global

    AS14745

    Atlanta

    33.7490, -84.3880

    99% uptime

    109ms
    |
    2ms
    |
    122ms
  • 96.30.193.213

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    4ms
    |
    44ms
  • 96.30.194.127

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    1ms
    |
    50ms
  • 96.30.195.96

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    0ms
    |
    140ms
  • 96.93.185.129

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    96% uptime

    126ms
    |
    1ms
    |
    248ms
  • 98.251.110.29

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    100% uptime

    124ms
    |
    4ms
    |
    101ms
  • 98.252.154.24

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    100% uptime

    127ms
    |
    18ms
    |
    222ms
  • 104.156.255.238

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    115ms
    |
    2ms
    |
    46ms
  • 107.191.126.102

    InMotion Hosting, Inc.

    AS3842

    Atlanta

    33.7490, -84.3880

    100% uptime

    106ms
    |
    5ms
    |
    116ms
  • 108.61.193.38

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    128ms
  • 108.61.193.73

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    2ms
    |
    42ms
  • 108.61.215.4

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    2ms
    |
    55ms
  • 139.144.184.177

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    2ms
    |
    23ms
  • 142.44.94.18

    NETWORK INNOVATIONS, LLC

    AS53828

    Atlanta

    33.7490, -84.3880

    99% uptime

    111ms
    |
    2ms
    |
    55ms
  • 144.202.17.15

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    2ms
    |
    44ms
  • 144.202.17.197

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    42ms
  • 144.202.19.5

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    1ms
    |
    46ms
  • 144.202.19.164

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    2ms
    |
    46ms
  • 144.202.22.117

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    120ms
    |
    2ms
    |
    126ms
  • 144.202.27.20

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    117ms
    |
    3ms
    |
    45ms
  • 144.202.29.75

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    43ms
  • 147.124.86.3

    Conexon Connect

    AS399898

    Atlanta

    33.8444, -84.4741

    100% uptime

    123ms
    |
    1ms
    |
    174ms
  • 155.138.160.94

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    121ms
    |
    2ms
    |
    43ms
  • 155.138.162.139

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    120ms
    |
    0ms
    |
    53ms
  • 155.138.165.77

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    120ms
    |
    2ms
    |
    54ms
  • 155.138.174.155

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    120ms
    |
    2ms
    |
    50ms
  • 155.138.174.248

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    2ms
    |
    61ms
  • 155.138.192.45

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    2ms
    |
    51ms
  • 155.138.193.58

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    2ms
    |
    44ms
  • 155.138.193.144

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    119ms
    |
    2ms
    |
    49ms
  • 155.138.200.204

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    118ms
    |
    1ms
    |
    44ms
  • 155.138.203.15

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    1ms
    |
    51ms
  • 155.138.203.48

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    96% uptime

    118ms
    |
    1ms
    |
    42ms
  • 155.138.207.116

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    98% uptime

    118ms
    |
    1ms
    |
    41ms
  • 155.138.207.182

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    1ms
    |
    54ms
  • 155.138.219.246

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    1ms
    |
    42ms
  • 155.138.227.84

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    120ms
    |
    2ms
    |
    42ms
  • 155.138.229.39

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    120ms
    |
    1ms
    |
    126ms
  • 155.138.234.78

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    2ms
    |
    48ms
  • 155.138.235.96

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    2ms
    |
    50ms
  • 162.254.214.11

    Foren Data, Inc.

    AS19683

    Atlanta

    33.7490, -84.3880

    98% uptime

    105ms
    |
    4ms
    |
    43ms
  • 170.187.155.162

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    3ms
    |
    128ms
  • 170.187.158.214

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    99% uptime

    115ms
    |
    1ms
    |
    123ms
  • 170.249.205.218

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    100% uptime

    103ms
    |
    2ms
    |
    208ms
  • 170.249.217.43

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    99% uptime

    104ms
    |
    4ms
    |
    112ms
  • 170.249.217.45

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    100% uptime

    103ms
    |
    2ms
    |
    110ms
  • 170.249.217.46

    PrivateSystems Networks

    AS63410

    Atlanta

    33.7490, -84.3880

    99% uptime

    104ms
    |
    3ms
    |
    111ms
  • 172.105.150.114

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    0ms
    |
    136ms
  • 172.105.156.141

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    115ms
    |
    0ms
    |
    56ms
  • 172.245.182.102

    HostPapa

    AS36352

    Atlanta

    33.7490, -84.3880

    100% uptime

    101ms
    |
    2ms
    |
    134ms
  • 173.230.128.171

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    115ms
    |
    0ms
    |
    134ms
  • 185.152.66.105

    Datacamp Limited

    AS60068

    Atlanta

    33.7490, -84.3880

    100% uptime

    108ms
    |
    1ms
    |
    128ms
  • 192.3.0.193

    HostPapa

    AS36352

    Atlanta

    33.7490, -84.3880

    100% uptime

    101ms
    |
    2ms
    |
    122ms
  • 194.195.212.144

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    96% uptime

    118ms
    |
    1ms
    |
    144ms
  • 209.170.234.148

    Bigleaf Networks, Inc.

    AS62642

    Atlanta

    33.7490, -84.3880

    99% uptime

    146ms
    |
    5ms
    |
    138ms
  • 50.245.101.9

    Comcast Cable Communications, LLC

    AS7922

    Auburn Hills

    42.6875, -83.2341

    100% uptime

    126ms
    |
    3ms
    |
    103ms
  • 38.98.222.54

    Cogent Communications, LLC

    AS174

    Audubon

    40.1279, -75.4318

    100% uptime

    99ms
    |
    1ms
    |
    118ms
  • 38.98.222.82

    Cogent Communications, LLC

    AS174

    Audubon

    40.1279, -75.4318

    99% uptime

    98ms
    |
    1ms
    |
    119ms
  • 38.98.222.84

    Cogent Communications, LLC

    AS174

    Audubon

    40.1279, -75.4318

    100% uptime

    98ms
    |
    1ms
    |
    117ms
  • 24.35.13.114

    WideOpenWest Finance LLC

    AS12083

    Augusta

    33.4710, -81.9748

    100% uptime

    133ms
    |
    2ms
    |
    218ms
  • 24.214.116.227

    WideOpenWest Finance LLC

    AS12083

    Augusta

    33.4710, -81.9748

    100% uptime

    132ms
    |
    3ms
    |
    227ms
  • 50.168.20.244

    Comcast Cable Communications, LLC

    AS7922

    Augusta

    33.4710, -81.9748

    96% uptime

    127ms
    |
    3ms
    |
    192ms
  • 143.59.198.210

    WideOpenWest Finance LLC

    AS12083

    Augusta

    33.4710, -81.9748

    100% uptime

    119ms
    |
    5ms
    |
    182ms
  • 32.143.194.158

    AT&T Enterprises, LLC

    AS7018

    Aurora

    41.7606, -88.3201

    98% uptime

    117ms
    |
    0ms
    |
    243ms
  • 50.228.62.1

    Comcast Cable Communications, LLC

    AS33652

    Aurora

    39.7294, -104.8319

    100% uptime

    145ms
    |
    5ms
    |
    164ms
  • 209.212.53.126

    Aerux LLP

    AS63270

    Aurora

    39.7294, -104.8319

    98% uptime

    135ms
    |
    5ms
    |
    45ms
  • 209.212.53.167

    Aerux LLP

    AS63270

    Aurora

    39.7294, -104.8319

    99% uptime

    135ms
    |
    0ms
    |
    46ms
  • 24.173.73.98

    Charter Communications Inc

    AS11427

    Austin

    30.2672, -97.7431

    100% uptime

    148ms
    |
    8ms
    |
    197ms
  • 24.227.216.186

    Charter Communications Inc

    AS11427

    Austin

    30.2672, -97.7431

    98% uptime

    143ms
    |
    1ms
    |
    81ms
  • 64.132.6.174

    SATC COLO LLC

    AS53873

    Austin

    30.2672, -97.7431

    99% uptime

    133ms
    |
    2ms
    |
    204ms
  • 66.219.44.20

    zColo

    AS27325

    Austin

    30.2672, -97.7431

    100% uptime

    122ms
    |
    3ms
    |
    152ms
  • 71.78.212.170

    Charter Communications Inc

    AS11427

    Austin

    30.2672, -97.7431

    100% uptime

    138ms
    |
    1ms
    |
    198ms
  • 72.177.9.248

    Charter Communications Inc

    AS11427

    Austin

    30.2672, -97.7431

    100% uptime

    147ms
    |
    8ms
    |
    238ms
  • 136.49.17.222

    Google Fiber Inc.

    AS16591

    Austin

    30.2672, -97.7431

    99% uptime

    130ms
    |
    13ms
    |
    169ms
  • 136.49.21.62

    Google Fiber Inc.

    AS16591

    Austin

    30.2672, -97.7431

    100% uptime

    130ms
    |
    9ms
    |
    105ms
  • 136.60.102.60

    Google Fiber Inc.

    AS16591

    Austin

    30.2672, -97.7431

    98% uptime

    128ms
    |
    11ms
    |
    162ms
  • 136.62.106.74

    Google Fiber Inc.

    AS16591

    Austin

    30.2672, -97.7431

    99% uptime

    129ms
    |
    13ms
    |
    165ms
  • 205.166.246.114

    Thin-nology, LLC

    AS55103

    Austin

    30.2672, -97.7431

    100% uptime

    150ms
    |
    4ms
    |
    165ms
  • 216.12.252.148

    AT&T Enterprises, LLC

    AS14654

    Austin

    30.2672, -97.7431

    99% uptime

    149ms
    |
    2ms
    |
    183ms
  • 47.176.152.146

    Frontier Communications of America, Inc.

    AS5650

    Azusa

    34.1336, -117.9076

    100% uptime

    163ms
    |
    1ms
    |
    87ms
  • 216.228.56.62

    Mid-Rivers Telephone Cooperative

    AS11961

    Baker

    46.3670, -104.2847

    99% uptime

    137ms
    |
    11ms
    |
    264ms
  • 66.209.103.110

    One Ring Networks, Inc.

    AS35985

    Baldwin Park

    34.0853, -117.9609

    100% uptime

    144ms
    |
    4ms
    |
    56ms
  • 72.43.229.234

    Charter Communications Inc

    AS11351

    Baldwinsville

    43.1587, -76.3327

    100% uptime

    113ms
    |
    5ms
    |
    112ms
  • 216.220.228.132

    GoNetSpeed

    AS11847

    Bangor

    44.7988, -68.7726

    100% uptime

    112ms
    |
    2ms
    |
    187ms
  • 72.28.162.218

    Breezeline

    AS11776

    Barnwell

    33.2449, -81.3587

    96% uptime

    129ms
    |
    3ms
    |
    128ms
  • 160.2.94.149

    CABLE ONE, INC.

    AS11492

    Bartlesville

    36.7473, -95.9808

    100% uptime

    146ms
    |
    10ms
    |
    63ms
  • 174.161.235.61

    Comcast Cable Communications, LLC

    AS7922

    Bartlett

    35.2045, -89.8740

    100% uptime

    150ms
    |
    5ms
    |
    304ms