DNS Servers

United States of America 5542 local DNS servers

Download list

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

  • 172.250.71.189

    Charter Communications Inc

    AS20001

    Burbank

    34.1802, -118.4324

    100% uptime

    181ms
    |
    11ms
    |
    194ms
  • 73.83.80.165

    Comcast Cable Communications, LLC

    AS7922

    Burien

    47.4704, -122.3468

    100% uptime

    163ms
    |
    3ms
    |
    102ms
  • 64.185.17.47

    Vexus Fiber

    AS13693

    Burkburnett

    34.0979, -98.5706

    80% uptime

    142ms
    |
    8ms
    |
    230ms
  • 66.57.22.187

    Charter Communications Inc

    AS11426

    Burlington

    36.0957, -79.4378

    100% uptime

    126ms
    |
    4ms
    |
    244ms
  • 69.5.125.245

    Burlington Telecom

    AS33604

    Burlington

    44.4759, -73.2121

    100% uptime

    107ms
    |
    0ms
    |
    194ms
  • 69.53.18.146

    Fidium

    AS13977

    Burlington

    44.4759, -73.2121

    100% uptime

    92ms
    |
    1ms
    |
    135ms
  • 72.128.192.7

    Charter Communications Inc

    AS10796

    Burlington

    42.6781, -88.2762

    100% uptime

    120ms
    |
    3ms
    |
    29ms
  • 169.54.65.229

    IBM Cloud

    AS36351

    Burlington

    44.4759, -73.2121

    100% uptime

    97ms
    |
    0ms
    |
    83ms
  • 71.24.216.29

    Comcast Cable Communications, LLC

    AS7922

    Burnsville

    44.7677, -93.2777

    100% uptime

    133ms
    |
    2ms
    |
    201ms
  • 73.24.30.19

    Comcast Cable Communications, LLC

    AS7922

    Burnsville

    44.7677, -93.2777

    100% uptime

    132ms
    |
    3ms
    |
    190ms
  • 70.37.244.137

    WT Services, Inc.

    AS46238

    Bushland

    35.1920, -102.0646

    100% uptime

    139ms
    |
    1ms
    |
    208ms
  • 24.101.91.63

    Armstrong

    AS27364

    Butler

    40.8612, -79.8953

    100% uptime

    103ms
    |
    2ms
    |
    46ms
  • 8.20.214.11

    Bijou Telephone Co-op Association, Inc.

    AS63107

    Byers

    39.7114, -104.2277

    96% uptime

    121ms
    |
    3ms
    |
    144ms
  • 8.25.245.251

    Bijou Telephone Co-op Association, Inc.

    AS63107

    Byers

    39.7114, -104.2277

    90% uptime

    120ms
    |
    0ms
    |
    192ms
  • 72.47.148.153

    Optimum

    AS19108

    Byesville

    39.9698, -81.5365

    100% uptime

    129ms
    |
    2ms
    |
    228ms
  • 71.13.68.250

    Charter Communications LLC

    AS20115

    Cadillac

    44.2520, -85.4012

    93% uptime

    135ms
    |
    5ms
    |
    258ms
  • 24.105.211.226

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    100% uptime

    96ms
    |
    3ms
    |
    171ms
  • 24.105.250.123

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    90% uptime

    96ms
    |
    2ms
    |
    171ms
  • 64.39.138.234

    CNSNext

    AS16700

    Cairo

    30.8775, -84.2021

    100% uptime

    107ms
    |
    0ms
    |
    29ms
  • 69.42.136.37

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    100% uptime

    96ms
    |
    1ms
    |
    170ms
  • 216.59.165.41

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    96% uptime

    95ms
    |
    9ms
    |
    166ms
  • 38.57.141.150

    Cogent Communications, LLC

    AS174

    Calexico

    32.6790, -115.4989

    93% uptime

    271ms
    |
    3ms
    |
    307ms
  • 38.57.141.160

    Cogent Communications, LLC

    AS174

    Calexico

    32.6790, -115.4989

    96% uptime

    256ms
    |
    20ms
    |
    356ms
  • 38.57.141.161

    Cogent Communications, LLC

    AS174

    Calexico

    32.6790, -115.4989

    93% uptime

    256ms
    |
    25ms
    |
    376ms
  • 38.57.141.162

    Cogent Communications, LLC

    AS174

    Calexico

    32.6790, -115.4989

    93% uptime

    252ms
    |
    19ms
    |
    358ms
  • 24.153.43.241

    Breezeline

    AS11776

    California

    38.3004, -76.5075

    100% uptime

    117ms
    |
    1ms
    |
    174ms
  • 74.214.60.17

    Breezeline

    AS11776

    California

    38.3004, -76.5075

    100% uptime

    120ms
    |
    2ms
    |
    190ms
  • 71.83.149.18

    Charter Communications LLC

    AS20115

    California City

    35.1258, -117.9859

    100% uptime

    180ms
    |
    3ms
    |
    249ms
  • 12.14.18.218

    AT&T Enterprises, LLC

    AS7018

    Calypso

    35.1538, -78.1053

    100% uptime

    114ms
    |
    0ms
    |
    186ms
  • 96.230.255.185

    Verizon Business

    AS701

    Cambridge

    42.3751, -71.1056

    100% uptime

    128ms
    |
    3ms
    |
    141ms
  • 71.255.159.74

    Fidium

    AS13977

    Camden

    44.2098, -69.0648

    100% uptime

    102ms
    |
    0ms
    |
    152ms
  • 47.215.171.173

    Optimum

    AS19108

    Camp Verde

    34.5636, -111.8543

    100% uptime

    167ms
    |
    4ms
    |
    282ms
  • 65.182.241.149

    Canby Telephone Association

    AS33470

    Canby

    45.2629, -122.6926

    100% uptime

    143ms
    |
    0ms
    |
    198ms
  • 63.246.237.70

    Texas CellNet, Inc.

    AS46452

    Canton

    32.5565, -95.8633

    100% uptime

    116ms
    |
    0ms
    |
    168ms
  • 73.145.63.13

    Comcast Cable Communications, LLC

    AS7922

    Canton

    42.3087, -83.4822

    100% uptime

    118ms
    |
    1ms
    |
    184ms
  • 162.217.128.196

    Penn Wisp, LLC

    AS395821

    Canton

    41.6565, -76.8533

    100% uptime

    103ms
    |
    2ms
    |
    229ms
  • 216.16.6.88

    Clarity Telecom LLC

    AS20412

    Canton

    43.3008, -96.5928

    100% uptime

    123ms
    |
    2ms
    |
    231ms
  • 64.185.0.26

    Vexus Fiber

    AS13693

    Canyon

    34.9803, -101.9188

    96% uptime

    133ms
    |
    4ms
    |
    312ms
  • 73.54.39.106

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    100% uptime

    144ms
    |
    5ms
    |
    228ms
  • 73.107.91.156

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    100% uptime

    142ms
    |
    3ms
    |
    198ms
  • 73.107.213.229

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    100% uptime

    141ms
    |
    6ms
    |
    218ms
  • 73.156.190.251

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    100% uptime

    141ms
    |
    7ms
    |
    214ms
  • 71.31.83.220

    Windstream Communications LLC

    AS7029

    Cape Girardeau

    37.3059, -89.5182

    100% uptime

    148ms
    |
    2ms
    |
    258ms
  • 70.44.209.199

    PenTeleData Inc.

    AS3737

    Carbondale

    41.5737, -75.5019

    100% uptime

    102ms
    |
    1ms
    |
    173ms
  • 134.22.239.112

    Metro Communications Company

    AS40702

    Carbondale

    37.7273, -89.2168

    100% uptime

    118ms
    |
    8ms
    |
    161ms
  • 12.206.47.27

    AT&T Enterprises, LLC

    AS7018

    Carlsbad

    33.1581, -117.3506

    100% uptime

    163ms
    |
    3ms
    |
    202ms
  • 66.32.116.211

    Windstream Communications LLC

    AS7029

    Carlsbad

    32.4207, -104.2288

    100% uptime

    140ms
    |
    1ms
    |
    234ms
  • 66.97.165.25

    Abtech Technologies, Inc.

    AS23303

    Carlsbad

    33.1581, -117.3506

    80% uptime

    172ms
    |
    5ms
    |
    147ms
  • 174.137.69.65

    Penasco Valley Telecommunications

    AS46595

    Carlsbad

    32.4207, -104.2288

    100% uptime

    137ms
    |
    1ms
    |
    245ms
  • 98.100.23.26

    Charter Communications, Inc

    AS33363

    Carmel

    39.9784, -86.1180

    100% uptime

    122ms
    |
    3ms
    |
    35ms
  • 172.98.143.152

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    107ms
    |
    15ms
    |
    258ms
  • 172.98.143.153

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    108ms
    |
    3ms
    |
    256ms
  • 172.98.143.155

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    112ms
    |
    1ms
    |
    261ms
  • 172.98.143.156

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    111ms
    |
    6ms
    |
    240ms
  • 172.98.143.159

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    112ms
    |
    0ms
    |
    240ms
  • 172.98.143.164

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    111ms
    |
    14ms
    |
    264ms
  • 172.98.143.168

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    107ms
    |
    17ms
    |
    261ms
  • 172.98.143.171

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    108ms
    |
    13ms
    |
    257ms
  • 172.98.143.173

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    111ms
    |
    28ms
    |
    246ms
  • 172.98.143.177

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    100% uptime

    111ms
    |
    0ms
    |
    84ms
  • 192.183.65.173

    Verizon Business

    AS5650

    Carmi

    38.0909, -88.1586

    100% uptime

    122ms
    |
    1ms
    |
    187ms
  • 204.155.59.30

    Southwire Company

    AS54062

    Carrollton

    33.5801, -85.0766

    100% uptime

    117ms
    |
    9ms
    |
    66ms
  • 199.120.93.215

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    100% uptime

    105ms
    |
    3ms
    |
    26ms
  • 199.120.93.240

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    96% uptime

    113ms
    |
    7ms
    |
    40ms
  • 208.126.188.222

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    100% uptime

    115ms
    |
    2ms
    |
    26ms
  • 47.47.190.50

    Charter Communications LLC

    AS33588

    Casper

    42.8666, -106.3131

    90% uptime

    186ms
    |
    3ms
    |
    345ms
  • 69.43.10.250

    CityNet

    AS6536

    Cass

    38.3968, -79.9148

    100% uptime

    102ms
    |
    1ms
    |
    130ms
  • 172.110.81.11

    Minburn Communications

    AS399753

    Castroville

    29.3558, -98.8786

    100% uptime

    109ms
    |
    1ms
    |
    142ms
  • 172.110.82.33

    Minburn Communications

    AS399753

    Castroville

    29.3558, -98.8786

    93% uptime

    109ms
    |
    1ms
    |
    137ms
  • 73.24.146.119

    Comcast Cable Communications, LLC

    AS7922

    Catalina Foothills

    32.2978, -110.9187

    80% uptime

    178ms
    |
    2ms
    |
    256ms
  • 24.105.222.213

    Mid-Hudson Cablevision, Inc.

    AS32953

    Catskill

    42.2173, -73.8646

    100% uptime

    95ms
    |
    1ms
    |
    171ms
  • 24.105.248.244

    Mid-Hudson Cablevision, Inc.

    AS32953

    Catskill

    42.2173, -73.8646

    90% uptime

    95ms
    |
    2ms
    |
    172ms
  • 162.219.112.19

    Hillbilly Wireless INC.

    AS62682

    Cave City

    35.9417, -91.5485

    100% uptime

    140ms
    |
    3ms
    |
    195ms
  • 162.219.119.108

    Hillbilly Wireless INC.

    AS62682

    Cave City

    35.9417, -91.5485

    100% uptime

    141ms
    |
    2ms
    |
    203ms
  • 69.91.131.82

    BAM Broadband Opco, LLC

    AS20303

    Cave Creek

    33.8333, -111.9508

    90% uptime

    162ms
    |
    2ms
    |
    232ms
  • 72.12.242.191

    South Central Communications, Inc.

    AS26253

    Cedar City

    37.6775, -113.0619

    100% uptime

    143ms
    |
    0ms
    |
    306ms
  • 72.12.252.239

    South Central Communications, Inc.

    AS26253

    Cedar City

    37.6775, -113.0619

    100% uptime

    140ms
    |
    2ms
    |
    19ms
  • 198.71.125.170

    South Central Communications, Inc.

    AS26253

    Cedar City

    37.6775, -113.0619

    96% uptime

    151ms
    |
    2ms
    |
    144ms
  • 24.149.31.119

    The Municipal Communications Utility of the City of Cedar Falls, Iowa

    AS13855

    Cedar Falls

    42.5278, -92.4455

    100% uptime

    111ms
    |
    0ms
    |
    27ms
  • 23.239.11.40

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    87ms
    |
    2ms
    |
    152ms
  • 45.33.82.130

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    86ms
    |
    1ms
    |
    111ms
  • 45.56.102.153

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    86ms
    |
    1ms
    |
    19ms
  • 45.79.139.34

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    85ms
    |
    2ms
    |
    59ms
  • 45.79.165.126

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    96% uptime

    97ms
    |
    4ms
    |
    14ms
  • 45.79.170.237

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    90ms
    |
    2ms
    |
    95ms
  • 66.175.212.114

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    2ms
    |
    12ms
  • 66.228.39.180

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    86ms
    |
    1ms
    |
    113ms
  • 69.164.214.118

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    86ms
    |
    2ms
    |
    110ms
  • 97.107.134.239

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    85ms
    |
    2ms
    |
    91ms
  • 172.104.22.76

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    96% uptime

    85ms
    |
    3ms
    |
    96ms
  • 173.255.236.85

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    86ms
    |
    2ms
    |
    102ms
  • 192.155.90.165

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    86ms
    |
    1ms
    |
    106ms
  • 157.52.59.142

    Eastern Iowa IP, LLC

    AS63394

    Cedar Rapids

    42.0083, -91.6441

    96% uptime

    116ms
    |
    0ms
    |
    232ms
  • 65.141.117.234

    CenturyLink Communications, LLC

    AS209

    Celebration

    28.3253, -81.5331

    100% uptime

    132ms
    |
    0ms
    |
    163ms
  • 24.192.141.132

    WideOpenWest Finance LLC

    AS12083

    Center Line

    42.4850, -83.0277

    96% uptime

    124ms
    |
    4ms
    |
    210ms
  • 24.19.33.152

    Comcast Cable Communications, LLC

    AS7922

    Centralia

    46.7162, -122.9543

    100% uptime

    169ms
    |
    1ms
    |
    250ms
  • 67.43.127.193

    Wisper ISP, LLC

    AS22926

    Centralia

    38.5251, -89.1334

    90% uptime

    105ms
    |
    0ms
    |
    138ms
  • 69.10.220.6

    Rainier Connect

    AS20394

    Centralia

    46.7162, -122.9543

    100% uptime

    155ms
    |
    4ms
    |
    201ms
  • 23.190.168.43

    ALABAMA LIGHTWAVE, INC.

    AS395673

    Centreville

    32.9462, -87.1167

    100% uptime

    124ms
    |
    3ms
    |
    202ms
  • 23.190.168.128

    ALABAMA LIGHTWAVE, INC.

    AS395673

    Centreville

    32.9462, -87.1167

    100% uptime

    124ms
    |
    0ms
    |
    199ms