DNS Servers

United States of America 4331 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

  • 162.243.242.240

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    52ms
  • 192.241.169.4

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    58ms
  • 192.241.170.10

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    62ms
  • 192.241.183.230

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    84ms
    |
    2ms
    |
    64ms
  • 192.241.244.64

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    58ms
  • 192.241.246.64

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    56ms
  • 192.241.249.186

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    53ms
  • 192.241.254.159

    DigitalOcean, LLC

    AS14061

    Secaucus

    40.7895, -74.0565

    100% uptime

    85ms
    |
    2ms
    |
    60ms
  • 45.40.15.57

    Wisper ISP, LLC

    AS22926

    Sedalia

    38.7045, -93.2283

    100% uptime

    116ms
    |
    6ms
    |
    156ms
  • 74.118.206.197

    Wisper ISP, LLC

    AS22926

    Sedalia

    38.7045, -93.2283

    96% uptime

    116ms
    |
    5ms
    |
    162ms
  • 142.202.24.168

    Advanced Internet

    AS396872

    Selah

    46.6540, -120.5301

    98% uptime

    166ms
    |
    12ms
    |
    254ms
  • 24.115.67.23

    PenTeleData Inc.

    AS3737

    Selinsgrove

    40.7990, -76.8622

    98% uptime

    102ms
    |
    16ms
    |
    165ms
  • 64.67.38.63

    PenTeleData Inc.

    AS3737

    Selinsgrove

    40.7990, -76.8622

    100% uptime

    102ms
    |
    2ms
    |
    181ms
  • 70.44.112.175

    PenTeleData Inc.

    AS3737

    Selinsgrove

    40.7990, -76.8622

    100% uptime

    102ms
    |
    4ms
    |
    161ms
  • 206.168.55.6

    Uber Wireless LLP

    AS399759

    Seminole

    32.7190, -102.6449

    100% uptime

    153ms
    |
    5ms
    |
    166ms
  • 216.73.171.42

    Uber Wireless LLP

    AS399759

    Seminole

    32.7190, -102.6449

    100% uptime

    154ms
    |
    8ms
    |
    170ms
  • 70.15.57.105

    PenTeleData Inc.

    AS3737

    Shamokin

    40.7890, -76.5589

    98% uptime

    102ms
    |
    2ms
    |
    32ms
  • 73.132.82.160

    Comcast Cable Communications, LLC

    AS7922

    Shannondale

    39.2171, -77.8075

    100% uptime

    120ms
    |
    3ms
    |
    35ms
  • 12.17.149.117

    AT&T Enterprises, LLC

    AS7018

    Shell Point

    32.7891, -80.1068

    99% uptime

    131ms
    |
    3ms
    |
    189ms
  • 47.23.54.244

    Cablevision Systems Corp.

    AS6128

    Shelter Island

    41.0682, -72.3387

    98% uptime

    99ms
    |
    3ms
    |
    167ms
  • 206.214.56.161

    Hood Canal Communications

    AS22054

    Shelton

    47.2151, -123.1007

    100% uptime

    166ms
    |
    8ms
    |
    246ms
  • 206.214.60.81

    Hood Canal Communications

    AS22054

    Shelton

    47.2151, -123.1007

    100% uptime

    164ms
    |
    8ms
    |
    227ms
  • 47.161.151.142

    Frontier Communications of America, Inc.

    AS5650

    Sherman

    33.6357, -96.6089

    98% uptime

    144ms
    |
    2ms
    |
    170ms
  • 67.61.198.25

    CABLE ONE, INC.

    AS11492

    Sherman

    33.6357, -96.6089

    100% uptime

    137ms
    |
    2ms
    |
    88ms
  • 24.185.250.12

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    98% uptime

    95ms
    |
    1ms
    |
    209ms
  • 68.197.84.88

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    98% uptime

    95ms
    |
    2ms
    |
    141ms
  • 68.197.85.157

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    99% uptime

    96ms
    |
    1ms
    |
    213ms
  • 74.89.99.71

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    100% uptime

    95ms
    |
    1ms
    |
    139ms
  • 173.2.218.142

    Cablevision Systems Corp.

    AS6128

    Shirley

    40.8015, -72.8676

    98% uptime

    93ms
    |
    1ms
    |
    189ms
  • 71.195.45.164

    Comcast Cable Communications, LLC

    AS7922

    Shoreview

    45.0791, -93.1472

    99% uptime

    139ms
    |
    32ms
    |
    247ms
  • 75.72.119.124

    Comcast Cable Communications, LLC

    AS7922

    Shoreview

    45.0791, -93.1472

    98% uptime

    135ms
    |
    8ms
    |
    232ms
  • 24.142.75.90

    CABLE ONE, INC.

    AS11492

    Shreveport

    32.5251, -93.7502

    100% uptime

    150ms
    |
    3ms
    |
    99ms
  • 64.30.64.90

    Shrewsbury Electric and Cable Operations

    AS26292

    Shrewsbury

    42.2959, -71.7129

    100% uptime

    100ms
    |
    1ms
    |
    126ms
  • 64.30.69.90

    Shrewsbury Electric and Cable Operations

    AS26292

    Shrewsbury

    42.2959, -71.7129

    98% uptime

    101ms
    |
    2ms
    |
    128ms
  • 68.198.215.210

    Cablevision Systems Corp.

    AS6128

    Shrub Oak

    41.3276, -73.8196

    98% uptime

    100ms
    |
    1ms
    |
    163ms
  • 173.224.198.164

    NEW KNOXVILLE TELEPHONE COMPANY

    AS31841

    Sidney

    40.2842, -84.1555

    96% uptime

    106ms
    |
    5ms
    |
    136ms
  • 206.51.147.176

    NEW KNOXVILLE TELEPHONE COMPANY

    AS31841

    Sidney

    40.2842, -84.1555

    100% uptime

    104ms
    |
    7ms
    |
    144ms
  • 68.188.68.154

    Charter Communications LLC

    AS20115

    Sikeston

    36.8767, -89.5879

    100% uptime

    147ms
    |
    3ms
    |
    321ms
  • 207.135.235.109

    All West Communications, Inc.

    AS13614

    Silver Summit

    40.7414, -111.4878

    100% uptime

    131ms
    |
    0ms
    |
    114ms
  • 73.230.136.174

    Comcast Cable Communications, LLC

    AS7922

    Sinking Spring

    40.3273, -76.0110

    100% uptime

    139ms
    |
    3ms
    |
    236ms
  • 24.119.84.9

    CABLE ONE, INC.

    AS11492

    Sioux City

    42.5000, -96.4003

    98% uptime

    139ms
    |
    6ms
    |
    44ms
  • 24.119.176.34

    CABLE ONE, INC.

    AS11492

    Sioux City

    42.5000, -96.4003

    100% uptime

    143ms
    |
    9ms
    |
    126ms
  • 208.53.207.30

    SDN Communications

    AS13576

    Sioux Falls

    43.5437, -96.7280

    99% uptime

    111ms
    |
    7ms
    |
    79ms
  • 216.254.246.74

    Clarity Telecom LLC

    AS20412

    Sioux Falls

    43.5437, -96.7280

    99% uptime

    132ms
    |
    2ms
    |
    30ms
  • 97.89.201.138

    Charter Communications LLC

    AS20115

    Slidell

    30.2752, -89.7812

    98% uptime

    152ms
    |
    4ms
    |
    154ms
  • 199.188.123.251

    Isotech, Inc

    AS19556

    Smithville

    39.3869, -94.5811

    98% uptime

    116ms
    |
    7ms
    |
    186ms
  • 98.123.150.219

    Charter Communications Inc

    AS10796

    Solon

    41.3898, -81.4412

    100% uptime

    125ms
    |
    11ms
    |
    90ms
  • 65.183.103.139

    TEC of Jackson, Inc.

    AS17253

    Soso

    31.7568, -89.2742

    99% uptime

    120ms
    |
    13ms
    |
    155ms
  • 12.2.244.150

    AT&T Enterprises, LLC

    AS7018

    Southaven

    34.9890, -90.0126

    99% uptime

    139ms
    |
    1ms
    |
    178ms
  • 73.74.250.32

    Comcast Cable Communications, LLC

    AS7922

    South Bend

    41.6834, -86.2500

    100% uptime

    127ms
    |
    7ms
    |
    215ms
  • 75.69.45.159

    Comcast Cable Communications, LLC

    AS7922

    South Deerfield

    42.4773, -72.6079

    99% uptime

    118ms
    |
    1ms
    |
    171ms
  • 50.218.185.234

    Comcast Cable Communications, LLC

    AS7922

    Southfield

    42.4734, -83.2219

    100% uptime

    120ms
    |
    1ms
    |
    172ms
  • 70.36.217.21

    Sonic.net, LLC

    AS7065

    South Gate

    33.9547, -118.2120

    100% uptime

    166ms
    |
    5ms
    |
    186ms
  • 64.222.100.52

    Fidium

    AS13977

    South Portland

    43.6415, -70.2409

    100% uptime

    102ms
    |
    4ms
    |
    130ms
  • 216.38.135.186

    Paxio Inc.

    AS36734

    South San Francisco

    37.6547, -122.4077

    100% uptime

    149ms
    |
    3ms
    |
    68ms
  • 71.232.235.122

    Comcast Cable Communications, LLC

    AS7922

    South Yarmouth

    41.6668, -70.1847

    100% uptime

    118ms
    |
    2ms
    |
    219ms
  • 24.16.206.84

    Comcast Cable Communications, LLC

    AS7922

    Spokane

    47.6597, -117.4291

    98% uptime

    187ms
    |
    3ms
    |
    355ms
  • 69.28.47.100

    Ziply Fiber

    AS31857

    Spokane

    47.6156, -117.3622

    98% uptime

    155ms
    |
    7ms
    |
    315ms
  • 199.127.112.249

    Ziply Fiber

    AS31857

    Spokane

    47.7380, -117.2557

    100% uptime

    154ms
    |
    6ms
    |
    178ms
  • 199.164.167.30

    Dogear/Packet Partners

    AS20271

    Spokane

    47.6597, -117.4291

    100% uptime

    166ms
    |
    2ms
    |
    220ms
  • 64.85.2.27

    Dogear/Packet Partners

    AS20271

    Spokane Valley

    47.6732, -117.2394

    98% uptime

    177ms
    |
    4ms
    |
    91ms
  • 76.147.150.143

    Comcast Cable Communications, LLC

    AS7922

    Spokane Valley

    47.6732, -117.2394

    98% uptime

    187ms
    |
    3ms
    |
    358ms
  • 24.0.154.39

    Comcast Cable Communications, LLC

    AS7922

    Spotswood

    40.3918, -74.3985

    100% uptime

    118ms
    |
    3ms
    |
    231ms
  • 57.132.181.145

    Grande Communications Networks, LLC

    AS7459

    Spring

    30.0799, -95.4172

    100% uptime

    145ms
    |
    5ms
    |
    198ms
  • 167.224.195.162

    OzarksGo, LLC

    AS395662

    Springdale

    36.1867, -94.1288

    100% uptime

    148ms
    |
    3ms
    |
    94ms
  • 71.192.204.98

    Comcast Cable Communications, LLC

    AS7922

    Springfield

    42.1015, -72.5898

    100% uptime

    117ms
    |
    3ms
    |
    217ms
  • 74.84.93.90

    Mediacom Communications Corp

    AS30036

    Springfield

    37.2153, -93.2982

    100% uptime

    124ms
    |
    2ms
    |
    208ms
  • 68.198.249.75

    Cablevision Systems Corp.

    AS6128

    Springs

    41.0162, -72.1592

    98% uptime

    100ms
    |
    3ms
    |
    161ms
  • 192.52.168.5

    Wes-Tex Telecommunications LTD

    AS30072

    Stanton

    32.1293, -101.7885

    98% uptime

    139ms
    |
    4ms
    |
    227ms
  • 167.150.4.98

    Fatbeam, LLC

    AS55039

    Star

    43.6921, -116.4935

    96% uptime

    137ms
    |
    3ms
    |
    268ms
  • 65.19.88.102

    Selectronics Corp.

    AS12282

    Starksboro

    44.2273, -73.0573

    100% uptime

    104ms
    |
    2ms
    |
    46ms
  • 104.232.184.65

    C Spire Fiber

    AS11272

    Starkville

    33.4505, -88.8196

    99% uptime

    113ms
    |
    3ms
    |
    115ms
  • 67.22.23.242

    Getwireless.net

    AS32278

    State College

    40.7934, -77.8600

    96% uptime

    96ms
    |
    3ms
    |
    186ms
  • 98.101.97.66

    Charter Communications Inc

    AS11426

    Statesville

    35.7826, -80.8873

    100% uptime

    122ms
    |
    7ms
    |
    118ms
  • 173.95.59.244

    Charter Communications Inc

    AS11426

    Statesville

    35.7826, -80.8873

    98% uptime

    117ms
    |
    2ms
    |
    170ms
  • 50.190.95.173

    Comcast Cable Communications, LLC

    AS7922

    Steamboat Springs

    40.4850, -106.8317

    100% uptime

    155ms
    |
    15ms
    |
    191ms
  • 24.49.201.90

    Vyve Broadband

    AS35986

    Stephenville

    32.2207, -98.2023

    100% uptime

    120ms
    |
    3ms
    |
    171ms
  • 69.59.94.245

    Vyve Broadband

    AS35986

    Stephenville

    32.2207, -98.2023

    100% uptime

    134ms
    |
    3ms
    |
    182ms
  • 156.146.225.229

    United Cooperative Services

    AS1448

    Stephenville

    32.2207, -98.2023

    100% uptime

    143ms
    |
    5ms
    |
    184ms
  • 156.146.244.36

    United Cooperative Services

    AS1448

    Stephenville

    32.2207, -98.2023

    100% uptime

    136ms
    |
    2ms
    |
    180ms
  • 38.100.4.3

    Cogent Communications, LLC

    AS174

    Sterling

    39.0062, -77.4286

    100% uptime

    108ms
    |
    0ms
    |
    48ms
  • 38.100.4.5

    Cogent Communications, LLC

    AS174

    Sterling

    39.0062, -77.4286

    99% uptime

    106ms
    |
    2ms
    |
    52ms
  • 66.154.118.103

    CYBERCON, INC.

    AS7393

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    2ms
    |
    156ms
  • 66.171.155.18

    NEXT LEVEL INTERNET, INC.

    AS16582

    St. Louis

    38.6273, -90.1979

    100% uptime

    131ms
    |
    3ms
    |
    204ms
  • 75.36.181.89

    AT&T Enterprises, LLC

    AS7018

    St. Louis

    38.6445, -90.2544

    100% uptime

    121ms
    |
    0ms
    |
    56ms
  • 85.239.247.194

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    116ms
    |
    0ms
    |
    91ms
  • 85.239.247.195

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    116ms
    |
    1ms
    |
    90ms
  • 85.239.247.196

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    114ms
    |
    1ms
    |
    98ms
  • 85.239.247.197

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    123ms
    |
    3ms
    |
    86ms
  • 85.239.247.198

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    114ms
    |
    0ms
    |
    92ms
  • 85.239.247.199

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    119ms
    |
    10ms
    |
    88ms
  • 85.239.247.200

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    116ms
    |
    0ms
    |
    104ms
  • 85.239.247.218

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    115ms
    |
    9ms
    |
    94ms
  • 85.239.247.219

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    124ms
    |
    4ms
    |
    90ms
  • 92.118.59.242

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    114ms
    |
    2ms
    |
    156ms
  • 144.126.128.120

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    114ms
    |
    1ms
    |
    256ms
  • 144.126.130.218

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    119ms
    |
    5ms
    |
    247ms
  • 148.72.155.218

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    3ms
    |
    239ms
  • 148.72.158.113

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    99% uptime

    117ms
    |
    3ms
    |
    123ms
  • 148.72.177.214

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    3ms
    |
    74ms