DNS Servers

United States of America 4613 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

  • 162.243.227.15

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    86ms
    |
    2ms
    |
    47ms
  • 162.243.231.202

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    62ms
  • 162.243.232.48

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    48ms
  • 162.243.235.82

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    57ms
  • 162.243.237.31

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    50ms
  • 162.243.237.133

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    99% uptime

    85ms
    |
    2ms
    |
    44ms
  • 184.164.217.116

    Krypt Technologies

    AS35908

    Secaucus

    40.7895, -74.0565

    100% uptime

    96ms
    |
    0ms
    |
    131ms
  • 192.241.183.230

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    98% uptime

    85ms
    |
    2ms
    |
    48ms
  • 8.34.79.29

    Cherryland Services Inc

    AS13904

    Sedillo

    35.0998, -106.2956

    100% uptime

    140ms
    |
    10ms
    |
    234ms
  • 70.44.112.175

    PenTeleData Inc.

    AS3737

    Selinsgrove

    40.7990, -76.8622

    100% uptime

    101ms
    |
    1ms
    |
    168ms
  • 206.168.55.6

    Uber Wireless LLP

    AS399759

    Seminole

    32.7190, -102.6449

    100% uptime

    143ms
    |
    4ms
    |
    190ms
  • 216.73.171.42

    Uber Wireless LLP

    AS399759

    Seminole

    32.7190, -102.6449

    99% uptime

    145ms
    |
    4ms
    |
    171ms
  • 50.81.169.90

    Mediacom Communications Corp

    AS30036

    Semmes

    30.7782, -88.2592

    100% uptime

    126ms
    |
    2ms
    |
    277ms
  • 207.44.39.128

    PenTeleData Inc.

    AS3737

    Shamokin

    40.7890, -76.5589

    100% uptime

    105ms
    |
    3ms
    |
    150ms
  • 8.40.167.108

    Vyve Broadband

    AS35986

    Shawnee

    35.3273, -96.9253

    98% uptime

    143ms
    |
    3ms
    |
    182ms
  • 8.40.177.72

    Vyve Broadband

    AS35986

    Shawnee

    35.3273, -96.9253

    99% uptime

    147ms
    |
    6ms
    |
    192ms
  • 24.112.115.35

    Vyve Broadband

    AS35986

    Shawnee

    35.3273, -96.9253

    100% uptime

    150ms
    |
    13ms
    |
    267ms
  • 206.214.49.7

    Hood Canal Communications

    AS22054

    Shelton

    47.2151, -123.1007

    98% uptime

    165ms
    |
    2ms
    |
    235ms
  • 206.214.60.81

    Hood Canal Communications

    AS22054

    Shelton

    47.2151, -123.1007

    100% uptime

    164ms
    |
    1ms
    |
    230ms
  • 24.48.172.229

    CABLE ONE, INC.

    AS11492

    Sherman

    33.6357, -96.6089

    99% uptime

    153ms
    |
    3ms
    |
    65ms
  • 24.245.84.56

    Cass Cable TV, Inc.

    AS10971

    Sherman

    39.8937, -89.6048

    94% uptime

    114ms
    |
    1ms
    |
    40ms
  • 67.61.198.25

    CABLE ONE, INC.

    AS11492

    Sherman

    33.6357, -96.6089

    100% uptime

    134ms
    |
    1ms
    |
    75ms
  • 69.92.14.172

    CABLE ONE, INC.

    AS11492

    Sherman

    33.6357, -96.6089

    99% uptime

    150ms
    |
    2ms
    |
    96ms
  • 69.92.220.149

    CABLE ONE, INC.

    AS11492

    Sherman

    33.6357, -96.6089

    100% uptime

    150ms
    |
    2ms
    |
    84ms
  • 72.24.241.13

    CABLE ONE, INC.

    AS11492

    Sherman

    33.6357, -96.6089

    94% uptime

    155ms
    |
    2ms
    |
    60ms
  • 96.18.137.111

    CABLE ONE, INC.

    AS11492

    Sherman

    33.6357, -96.6089

    99% uptime

    155ms
    |
    2ms
    |
    108ms
  • 24.46.26.70

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    100% uptime

    100ms
    |
    1ms
    |
    162ms
  • 68.197.85.157

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    100% uptime

    95ms
    |
    1ms
    |
    142ms
  • 69.116.49.118

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    100% uptime

    95ms
    |
    1ms
    |
    155ms
  • 69.121.196.205

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    88% uptime

    94ms
    |
    2ms
    |
    152ms
  • 76.146.112.22

    Comcast Cable Communications, LLC

    AS7922

    Shoreline

    47.7557, -122.3415

    94% uptime

    179ms
    |
    1ms
    |
    318ms
  • 72.24.78.88

    CABLE ONE, INC.

    AS11492

    Show Low

    34.2542, -110.0298

    88% uptime

    178ms
    |
    4ms
    |
    171ms
  • 24.142.75.90

    CABLE ONE, INC.

    AS11492

    Shreveport

    32.5251, -93.7502

    99% uptime

    148ms
    |
    2ms
    |
    86ms
  • 66.196.60.74

    Nedelco Inc.

    AS13765

    Sidney

    41.1428, -102.9780

    99% uptime

    148ms
    |
    6ms
    |
    191ms
  • 192.119.42.157

    WNM Communications

    AS54434

    Silver City

    32.7701, -108.2803

    100% uptime

    175ms
    |
    0ms
    |
    192ms
  • 207.172.140.90

    RCN

    AS6079

    Silver Spring

    38.9907, -77.0261

    94% uptime

    120ms
    |
    1ms
    |
    200ms
  • 96.43.255.174

    All West Communications, Inc.

    AS13614

    Silver Summit

    40.7414, -111.4878

    98% uptime

    129ms
    |
    2ms
    |
    69ms
  • 12.9.250.168

    AT&T Enterprises, LLC

    AS7018

    Simi Valley

    34.2694, -118.7815

    100% uptime

    168ms
    |
    3ms
    |
    90ms
  • 24.241.136.70

    Charter Communications LLC

    AS20115

    Simpsonville

    34.7371, -82.2543

    94% uptime

    116ms
    |
    0ms
    |
    163ms
  • 14.102.173.127

    FiberComm LC

    AS54578

    Sioux City

    42.5000, -96.4003

    100% uptime

    123ms
    |
    5ms
    |
    196ms
  • 24.117.175.90

    CABLE ONE, INC.

    AS11492

    Sioux City

    42.5000, -96.4003

    99% uptime

    143ms
    |
    13ms
    |
    51ms
  • 24.119.84.9

    CABLE ONE, INC.

    AS11492

    Sioux City

    42.5000, -96.4003

    100% uptime

    138ms
    |
    2ms
    |
    44ms
  • 66.172.193.156

    Long Lines Internet

    AS32867

    Sioux City

    42.5000, -96.4003

    99% uptime

    112ms
    |
    14ms
    |
    61ms
  • 67.60.38.14

    CABLE ONE, INC.

    AS11492

    Sioux City

    42.5000, -96.4003

    94% uptime

    139ms
    |
    1ms
    |
    47ms
  • 208.53.207.30

    SDN Communications

    AS13576

    Sioux Falls

    43.5437, -96.7280

    100% uptime

    111ms
    |
    12ms
    |
    68ms
  • 216.254.246.74

    Clarity Telecom LLC

    AS20412

    Sioux Falls

    43.5437, -96.7280

    100% uptime

    132ms
    |
    2ms
    |
    244ms
  • 70.44.101.34

    PenTeleData Inc.

    AS3737

    Slatington

    40.7484, -75.6119

    94% uptime

    102ms
    |
    4ms
    |
    179ms
  • 97.89.201.138

    Charter Communications LLC

    AS20115

    Slidell

    30.2752, -89.7812

    99% uptime

    153ms
    |
    9ms
    |
    150ms
  • 130.250.252.211

    VELOCITY, A MANAGED SERVICES COMPANY

    AS62728

    Smith Mills

    41.6390, -70.9912

    100% uptime

    98ms
    |
    14ms
    |
    118ms
  • 199.188.123.251

    Isotech, Inc

    AS19556

    Smithville

    39.3869, -94.5811

    100% uptime

    119ms
    |
    2ms
    |
    164ms
  • 199.188.123.252

    Isotech, Inc

    AS19556

    Smithville

    39.3869, -94.5811

    98% uptime

    119ms
    |
    4ms
    |
    183ms
  • 50.84.191.248

    Charter Communications Inc

    AS11427

    Socorro

    31.6546, -106.3033

    88% uptime

    146ms
    |
    1ms
    |
    208ms
  • 98.123.150.219

    Charter Communications Inc

    AS10796

    Solon

    41.3898, -81.4412

    99% uptime

    129ms
    |
    1ms
    |
    86ms
  • 173.70.125.168

    Verizon Business

    AS701

    Somerville

    40.5743, -74.6099

    100% uptime

    100ms
    |
    1ms
    |
    148ms
  • 65.183.103.139

    TEC of Jackson, Inc.

    AS17253

    Soso

    31.7568, -89.2742

    100% uptime

    120ms
    |
    6ms
    |
    158ms
  • 12.2.244.150

    AT&T Enterprises, LLC

    AS7018

    Southaven

    34.9890, -90.0126

    100% uptime

    140ms
    |
    1ms
    |
    180ms
  • 199.36.118.35

    NebraskaLink

    AS16851

    South Bend

    41.0017, -96.2453

    100% uptime

    123ms
    |
    2ms
    |
    180ms
  • 75.69.45.159

    Comcast Cable Communications, LLC

    AS7922

    South Deerfield

    42.4773, -72.6079

    100% uptime

    118ms
    |
    1ms
    |
    165ms
  • 71.70.239.137

    Charter Communications Inc

    AS11426

    Southern Pines

    35.1741, -79.3923

    100% uptime

    115ms
    |
    1ms
    |
    206ms
  • 104.245.86.27

    Clear Rate Communications, Inc.

    AS22438

    Southfield

    42.4734, -83.2219

    100% uptime

    108ms
    |
    0ms
    |
    258ms
  • 173.187.56.111

    Windstream Communications LLC

    AS7029

    Southmont

    35.6679, -80.2670

    99% uptime

    132ms
    |
    6ms
    |
    224ms
  • 74.89.201.162

    Cablevision Systems Corp.

    AS6128

    Southold

    41.0648, -72.4262

    94% uptime

    102ms
    |
    3ms
    |
    177ms
  • 71.255.158.70

    Fidium

    AS13977

    South Portland

    43.6415, -70.2409

    100% uptime

    109ms
    |
    0ms
    |
    256ms
  • 104.244.14.113

    Farsight Security, Inc

    AS393667

    South Riding

    38.9209, -77.5039

    100% uptime

    104ms
    |
    1ms
    |
    99ms
  • 104.219.96.79

    ECFiber

    AS55145

    South Royalton

    43.8209, -72.5212

    94% uptime

    99ms
    |
    1ms
    |
    145ms
  • 216.38.135.186

    Paxio Inc.

    AS36734

    South San Francisco

    37.6547, -122.4077

    100% uptime

    149ms
    |
    3ms
    |
    46ms
  • 146.168.207.172

    Breezeline

    AS11776

    South Uniontown

    39.8929, -79.7470

    100% uptime

    116ms
    |
    2ms
    |
    217ms
  • 158.51.6.12

    Gallatin Wireless Internet, LLC

    AS397324

    Spearfish

    44.4908, -103.8594

    94% uptime

    151ms
    |
    6ms
    |
    235ms
  • 104.243.232.17

    Country Wireless

    AS16616

    Spencer

    44.7577, -90.2968

    94% uptime

    138ms
    |
    10ms
    |
    185ms
  • 50.251.238.129

    Comcast Cable Communications, LLC

    AS7922

    Spokane

    47.6597, -117.4291

    100% uptime

    192ms
    |
    3ms
    |
    97ms
  • 64.85.2.26

    Dogear/Packet Partners

    AS20271

    Spokane

    47.6597, -117.4291

    100% uptime

    175ms
    |
    1ms
    |
    109ms
  • 64.85.2.28

    Dogear/Packet Partners

    AS20271

    Spokane

    47.6597, -117.4291

    100% uptime

    176ms
    |
    1ms
    |
    70ms
  • 170.173.8.23

    Providence Health & Services

    AS46790

    Spokane

    47.6597, -117.4291

    100% uptime

    169ms
    |
    0ms
    |
    248ms
  • 174.165.173.1

    Comcast Cable Communications, LLC

    AS7922

    Spokane

    47.6597, -117.4291

    94% uptime

    178ms
    |
    2ms
    |
    368ms
  • 66.23.193.191

    Redoubt Networks

    AS400304

    Spokane Valley

    47.6732, -117.2394

    100% uptime

    160ms
    |
    0ms
    |
    19ms
  • 66.23.193.192

    Redoubt Networks

    AS400304

    Spokane Valley

    47.6732, -117.2394

    100% uptime

    178ms
    |
    0ms
    |
    9ms
  • 73.9.189.23

    Comcast Cable Communications, LLC

    AS7922

    Springfield

    39.8017, -89.6437

    100% uptime

    138ms
    |
    2ms
    |
    232ms
  • 192.119.193.166

    Mediacom Communications Corp

    AS30036

    Springfield

    37.2153, -93.2982

    100% uptime

    124ms
    |
    2ms
    |
    74ms
  • 108.163.113.233

    Dakota Carrier Network

    AS26794

    Stanley

    48.3172, -102.3905

    98% uptime

    140ms
    |
    1ms
    |
    77ms
  • 192.52.168.5

    Wes-Tex Telecommunications LTD

    AS30072

    Stanton

    32.1293, -101.7885

    100% uptime

    133ms
    |
    9ms
    |
    226ms
  • 192.52.168.6

    Wes-Tex Telecommunications LTD

    AS30072

    Stanton

    32.1293, -101.7885

    100% uptime

    136ms
    |
    0ms
    |
    266ms
  • 104.232.184.65

    C Spire Fiber

    AS11272

    Starkville

    33.4505, -88.8196

    100% uptime

    112ms
    |
    1ms
    |
    84ms
  • 24.54.106.103

    Vyve Broadband

    AS35986

    Statesboro

    32.4488, -81.7832

    100% uptime

    127ms
    |
    2ms
    |
    188ms
  • 24.213.125.166

    Vyve Broadband

    AS35986

    Statesboro

    32.4488, -81.7832

    100% uptime

    130ms
    |
    2ms
    |
    171ms
  • 98.101.97.66

    Charter Communications Inc

    AS11426

    Statesville

    35.7826, -80.8873

    100% uptime

    123ms
    |
    1ms
    |
    117ms
  • 24.13.61.211

    Comcast Cable Communications, LLC

    AS7922

    St. Charles

    41.9142, -88.3087

    94% uptime

    133ms
    |
    16ms
    |
    199ms
  • 50.190.95.173

    Comcast Cable Communications, LLC

    AS7922

    Steamboat Springs

    40.4850, -106.8317

    99% uptime

    158ms
    |
    6ms
    |
    180ms
  • 24.31.30.210

    Vyve Broadband

    AS35986

    Stephenville

    32.2207, -98.2023

    100% uptime

    130ms
    |
    2ms
    |
    190ms
  • 24.49.201.90

    Vyve Broadband

    AS35986

    Stephenville

    32.2207, -98.2023

    100% uptime

    119ms
    |
    1ms
    |
    178ms
  • 156.146.244.36

    United Cooperative Services

    AS1448

    Stephenville

    32.2207, -98.2023

    100% uptime

    137ms
    |
    0ms
    |
    170ms
  • 38.100.4.1

    Cogent Communications, LLC

    AS174

    Sterling

    39.0062, -77.4286

    98% uptime

    103ms
    |
    0ms
    |
    50ms
  • 38.100.4.3

    Cogent Communications, LLC

    AS174

    Sterling

    39.0062, -77.4286

    98% uptime

    108ms
    |
    1ms
    |
    44ms
  • 38.100.4.5

    Cogent Communications, LLC

    AS174

    Sterling

    39.0062, -77.4286

    100% uptime

    104ms
    |
    1ms
    |
    48ms
  • 68.84.169.3

    Comcast Cable Communications, LLC

    AS7922

    Sterling Heights

    42.5803, -83.0302

    100% uptime

    126ms
    |
    3ms
    |
    224ms
  • 146.71.84.193

    Level 3 Parent, LLC

    AS10753

    Stevensville

    46.5099, -114.0932

    100% uptime

    170ms
    |
    1ms
    |
    257ms
  • 38.39.211.10

    Sho Me Technologies, LLC

    AS55140

    St. Louis

    38.6273, -90.1979

    99% uptime

    113ms
    |
    10ms
    |
    148ms
  • 38.129.148.31

    Cass Cable TV, Inc.

    AS10971

    St. Louis

    38.6273, -90.1979

    94% uptime

    115ms
    |
    1ms
    |
    38ms
  • 66.154.117.132

    CYBERCON, INC.

    AS7393

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    0ms
    |
    26ms
  • 66.154.118.103

    CYBERCON, INC.

    AS7393

    St. Louis

    38.6273, -90.1979

    98% uptime

    117ms
    |
    2ms
    |
    155ms
  • 66.154.118.142

    CYBERCON, INC.

    AS7393

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    0ms
    |
    252ms