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

  • 66.171.155.18

    NEXT LEVEL INTERNET, INC.

    AS16582

    St. Louis

    38.6273, -90.1979

    100% uptime

    129ms
    |
    0ms
    |
    136ms
  • 66.232.174.158

    Wisper ISP, LLC

    AS22926

    St. Louis

    38.6273, -90.1979

    94% uptime

    102ms
    |
    0ms
    |
    130ms
  • 69.64.58.110

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    94% uptime

    117ms
    |
    2ms
    |
    89ms
  • 75.36.181.89

    AT&T Enterprises, LLC

    AS7018

    St. Louis

    38.6445, -90.2544

    99% uptime

    121ms
    |
    2ms
    |
    52ms
  • 85.239.247.194

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    116ms
    |
    4ms
    |
    86ms
  • 85.239.247.195

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    116ms
    |
    7ms
    |
    94ms
  • 85.239.247.196

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    114ms
    |
    2ms
    |
    94ms
  • 85.239.247.197

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    123ms
    |
    6ms
    |
    78ms
  • 85.239.247.198

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    114ms
    |
    2ms
    |
    92ms
  • 85.239.247.199

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    122ms
    |
    3ms
    |
    87ms
  • 85.239.247.200

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    116ms
    |
    2ms
    |
    90ms
  • 85.239.247.218

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    121ms
    |
    0ms
    |
    86ms
  • 85.239.247.219

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    94% uptime

    124ms
    |
    0ms
    |
    93ms
  • 144.126.128.120

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    114ms
    |
    2ms
    |
    254ms
  • 144.126.130.218

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    123ms
    |
    0ms
    |
    242ms
  • 144.126.141.60

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    124ms
    |
    2ms
    |
    88ms
  • 147.93.129.145

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    117ms
    |
    5ms
    |
    259ms
  • 147.93.130.20

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    116ms
    |
    2ms
    |
    147ms
  • 148.72.132.12

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    0ms
    |
    87ms
  • 148.72.158.113

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    98% uptime

    117ms
    |
    0ms
    |
    125ms
  • 148.72.177.214

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    0ms
    |
    32ms
  • 154.12.229.244

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    116ms
    |
    4ms
    |
    149ms
  • 154.38.162.149

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    99% uptime

    131ms
    |
    23ms
    |
    380ms
  • 154.53.45.61

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    124ms
    |
    0ms
    |
    60ms
  • 207.244.226.135

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    94% uptime

    115ms
    |
    0ms
    |
    177ms
  • 207.244.230.123

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    122ms
    |
    1ms
    |
    68ms
  • 207.244.248.89

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    114ms
    |
    0ms
    |
    194ms
  • 209.126.81.232

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    114ms
    |
    0ms
    |
    268ms
  • 209.126.86.156

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    122ms
    |
    3ms
    |
    252ms
  • 209.126.106.250

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    0ms
    |
    143ms
  • 209.126.124.113

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    94% uptime

    117ms
    |
    7ms
    |
    127ms
  • 209.135.132.135

    CDM

    AS6428

    St. Louis

    38.6273, -90.1979

    100% uptime

    124ms
    |
    0ms
    |
    182ms
  • 209.239.115.137

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    0ms
    |
    126ms
  • 73.151.155.98

    Comcast Cable Communications, LLC

    AS7922

    Stockton

    37.9577, -121.2908

    99% uptime

    177ms
    |
    2ms
    |
    314ms
  • 199.33.125.42

    Rebel Hosting

    AS26481

    Stockton

    37.9577, -121.2908

    100% uptime

    161ms
    |
    1ms
    |
    211ms
  • 146.115.122.207

    RCN

    AS6079

    Stoneham

    42.4801, -71.0995

    100% uptime

    115ms
    |
    3ms
    |
    170ms
  • 209.6.194.89

    RCN

    AS6079

    Stoneham

    42.4801, -71.0995

    99% uptime

    114ms
    |
    2ms
    |
    154ms
  • 199.38.168.46

    LiteWire Internet Services, Inc.

    AS32003

    Stoughton

    42.9169, -89.2179

    99% uptime

    111ms
    |
    9ms
    |
    232ms
  • 199.38.168.47

    LiteWire Internet Services, Inc.

    AS32003

    Stoughton

    42.9169, -89.2179

    100% uptime

    111ms
    |
    0ms
    |
    244ms
  • 24.73.106.254

    Charter Communications, Inc

    AS33363

    St. Petersburg

    27.7709, -82.6793

    100% uptime

    136ms
    |
    5ms
    |
    181ms
  • 74.50.98.254

    HIVELOCITY, Inc.

    AS29802

    St. Petersburg

    27.7709, -82.6793

    100% uptime

    120ms
    |
    0ms
    |
    157ms
  • 74.50.118.254

    HIVELOCITY, Inc.

    AS29802

    St. Petersburg

    27.7709, -82.6793

    100% uptime

    120ms
    |
    2ms
    |
    155ms
  • 74.50.120.254

    HIVELOCITY, Inc.

    AS29802

    St. Petersburg

    27.7709, -82.6793

    100% uptime

    120ms
    |
    0ms
    |
    181ms
  • 199.167.30.132

    HIVELOCITY, Inc.

    AS29802

    St. Petersburg

    27.7709, -82.6793

    94% uptime

    123ms
    |
    1ms
    |
    151ms
  • 12.215.210.122

    AT&T Enterprises, LLC

    AS7018

    Strafford

    37.2684, -93.1171

    98% uptime

    142ms
    |
    14ms
    |
    184ms
  • 8.25.245.251

    Bijou Telephone Co-op Association, Inc.

    AS63107

    Strasburg

    39.7383, -104.3233

    100% uptime

    120ms
    |
    3ms
    |
    290ms
  • 162.255.12.157

    Metro Communications Company, Inc.

    AS53610

    Sullivan

    39.5995, -88.6078

    100% uptime

    114ms
    |
    2ms
    |
    137ms
  • 24.229.3.166

    PenTeleData Inc.

    AS3737

    Sunbury

    40.8626, -76.7944

    99% uptime

    102ms
    |
    5ms
    |
    141ms
  • 12.231.188.3

    AT&T Enterprises, LLC

    AS7018

    Sunnyvale

    37.3688, -122.0363

    100% uptime

    174ms
    |
    20ms
    |
    108ms
  • 50.189.70.233

    Comcast Cable Communications, LLC

    AS7922

    Sunnyvale

    37.3688, -122.0363

    100% uptime

    174ms
    |
    2ms
    |
    257ms
  • 154.3.62.63

    Cogent Communications, LLC

    AS174

    Sunnyvale

    37.3688, -122.0363

    100% uptime

    164ms
    |
    1ms
    |
    20ms
  • 69.128.51.197

    TDS TELECOM

    AS4181

    Sun Prairie

    43.1836, -89.2137

    100% uptime

    118ms
    |
    0ms
    |
    164ms
  • 199.192.160.43

    CopperNet Systems, Inc.

    AS33133

    Superior

    33.2940, -111.0962

    94% uptime

    152ms
    |
    11ms
    |
    251ms
  • 199.192.160.51

    CopperNet Systems, Inc.

    AS33133

    Superior

    33.2940, -111.0962

    88% uptime

    170ms
    |
    8ms
    |
    292ms
  • 199.192.160.60

    CopperNet Systems, Inc.

    AS33133

    Superior

    33.2940, -111.0962

    88% uptime

    168ms
    |
    6ms
    |
    272ms
  • 199.192.160.70

    CopperNet Systems, Inc.

    AS33133

    Superior

    33.2940, -111.0962

    94% uptime

    170ms
    |
    7ms
    |
    300ms
  • 204.9.214.71

    CopperNet Systems, Inc.

    AS33133

    Superior

    33.2940, -111.0962

    94% uptime

    158ms
    |
    4ms
    |
    281ms
  • 204.9.214.99

    CopperNet Systems, Inc.

    AS33133

    Superior

    33.2940, -111.0962

    94% uptime

    155ms
    |
    12ms
    |
    169ms
  • 204.9.214.150

    CopperNet Systems, Inc.

    AS33133

    Superior

    33.2940, -111.0962

    94% uptime

    154ms
    |
    1ms
    |
    224ms
  • 38.188.129.72

    Wyyerd Group

    AS54936

    Surprise

    33.6306, -112.3332

    100% uptime

    144ms
    |
    2ms
    |
    176ms
  • 24.178.96.242

    Charter Communications LLC

    AS20115

    Suwanee

    34.0515, -84.0713

    100% uptime

    124ms
    |
    3ms
    |
    95ms
  • 24.241.97.76

    Charter Communications LLC

    AS20115

    Swansea

    38.5339, -89.9890

    100% uptime

    146ms
    |
    1ms
    |
    57ms
  • 12.108.241.196

    AT&T Enterprises, LLC

    AS7018

    Swedesboro

    39.7476, -75.3105

    99% uptime

    108ms
    |
    17ms
    |
    40ms
  • 38.55.84.129

    BalsamWest FiberNET, LLC

    AS14430

    Sylva

    35.3737, -83.2260

    88% uptime

    105ms
    |
    8ms
    |
    148ms
  • 147.185.166.254

    BalsamWest FiberNET, LLC

    AS14430

    Sylva

    35.3737, -83.2260

    100% uptime

    104ms
    |
    9ms
    |
    144ms
  • 38.77.18.2

    New Visions Communications Inc

    AS393422

    Syracuse

    43.0481, -76.1474

    99% uptime

    103ms
    |
    1ms
    |
    133ms
  • 38.121.198.241

    Mohawk Networks LLC

    AS63104

    Syracuse

    43.0481, -76.1474

    99% uptime

    101ms
    |
    6ms
    |
    61ms
  • 75.117.126.79

    Windstream Communications LLC

    AS7029

    Syracuse

    43.0481, -76.1474

    100% uptime

    143ms
    |
    5ms
    |
    222ms
  • 216.25.49.108

    Kosciusko Connect LLC

    AS399356

    Syracuse

    41.4278, -85.7525

    100% uptime

    104ms
    |
    6ms
    |
    32ms
  • 50.197.73.245

    Comcast Cable Communications, LLC

    AS7922

    Tacoma

    47.2529, -122.4443

    100% uptime

    181ms
    |
    2ms
    |
    234ms
  • 67.183.212.13

    Comcast Cable Communications, LLC

    AS7922

    Tacoma

    47.2529, -122.4443

    99% uptime

    180ms
    |
    2ms
    |
    326ms
  • 73.254.61.9

    Comcast Cable Communications, LLC

    AS7922

    Tacoma

    47.2529, -122.4443

    100% uptime

    185ms
    |
    1ms
    |
    386ms
  • 174.21.36.47

    CenturyLink Communications, LLC

    AS209

    Tacoma

    47.2529, -122.4443

    99% uptime

    166ms
    |
    2ms
    |
    202ms
  • 73.118.76.94

    Comcast Cable Communications, LLC

    AS7922

    Tallahassee

    30.4383, -84.2807

    94% uptime

    145ms
    |
    2ms
    |
    229ms
  • 98.230.50.60

    Comcast Cable Communications, LLC

    AS7922

    Tallahassee

    30.4383, -84.2807

    100% uptime

    135ms
    |
    8ms
    |
    240ms
  • 142.190.46.52

    Uniti Fiber Holdings Inc.

    AS13760

    Tallahassee

    30.4383, -84.2807

    100% uptime

    126ms
    |
    1ms
    |
    276ms
  • 216.162.146.94

    PAVLOV MEDIA INC

    AS23473

    Tallahassee

    30.4383, -84.2807

    100% uptime

    108ms
    |
    13ms
    |
    50ms
  • 23.111.133.234

    HIVELOCITY, Inc.

    AS29802

    Tampa

    27.9475, -82.4584

    99% uptime

    120ms
    |
    3ms
    |
    322ms
  • 40.128.95.79

    Windstream Communications LLC

    AS7029

    Tampa

    27.9475, -82.4584

    100% uptime

    117ms
    |
    1ms
    |
    184ms
  • 47.203.155.7

    Frontier Communications of America, Inc.

    AS5650

    Tampa

    27.9475, -82.4584

    100% uptime

    137ms
    |
    4ms
    |
    33ms
  • 47.207.28.5

    Frontier Communications of America, Inc.

    AS5650

    Tampa

    27.9475, -82.4584

    100% uptime

    138ms
    |
    0ms
    |
    195ms
  • 69.46.6.138

    HIVELOCITY, Inc.

    AS29802

    Tampa

    27.9475, -82.4584

    100% uptime

    120ms
    |
    4ms
    |
    172ms
  • 104.234.87.50

    Open Infra Inc.

    AS401081

    Tampa

    27.9475, -82.4584

    100% uptime

    134ms
    |
    2ms
    |
    168ms
  • 107.144.116.34

    Charter Communications, Inc

    AS33363

    Tampa

    27.9475, -82.4584

    94% uptime

    134ms
    |
    1ms
    |
    59ms
  • 174.47.44.151

    Hillsborough County Aviation Authority

    AS396439

    Tampa

    27.9475, -82.4584

    100% uptime

    122ms
    |
    5ms
    |
    97ms
  • 174.47.44.152

    Hillsborough County Aviation Authority

    AS396439

    Tampa

    27.9475, -82.4584

    99% uptime

    124ms
    |
    4ms
    |
    80ms
  • 198.178.121.222

    HIVELOCITY, Inc.

    AS29802

    Tampa

    27.9475, -82.4584

    100% uptime

    120ms
    |
    3ms
    |
    178ms
  • 209.133.203.14

    HIVELOCITY, Inc.

    AS29802

    Tampa

    27.9475, -82.4584

    100% uptime

    120ms
    |
    0ms
    |
    164ms
  • 209.133.208.10

    HIVELOCITY, Inc.

    AS29802

    Tampa

    27.9475, -82.4584

    100% uptime

    120ms
    |
    0ms
    |
    138ms
  • 209.133.208.11

    HIVELOCITY, Inc.

    AS29802

    Tampa

    27.9475, -82.4584

    100% uptime

    120ms
    |
    0ms
    |
    134ms
  • 24.100.6.130

    CABLE ONE, INC.

    AS11492

    Taylorville

    39.5489, -89.2945

    100% uptime

    130ms
    |
    1ms
    |
    43ms
  • 72.9.120.57

    CTI Fiber

    AS32160

    Taylorville

    39.5489, -89.2945

    100% uptime

    115ms
    |
    0ms
    |
    267ms
  • 47.181.173.170

    Frontier Communications of America, Inc.

    AS5650

    Temecula

    33.4936, -117.1484

    100% uptime

    170ms
    |
    2ms
    |
    112ms
  • 24.129.138.158

    Charter Communications, Inc

    AS33363

    Temple Terrace

    28.0353, -82.3893

    100% uptime

    133ms
    |
    2ms
    |
    88ms
  • 12.5.169.67

    AT&T Enterprises, LLC

    AS7018

    Terrell

    32.7360, -96.2753

    100% uptime

    139ms
    |
    0ms
    |
    156ms
  • 160.3.163.26

    CABLE ONE, INC.

    AS11492

    Texarkana

    33.4251, -94.0477

    100% uptime

    144ms
    |
    2ms
    |
    53ms
  • 160.3.199.16

    CABLE ONE, INC.

    AS11492

    Texarkana

    33.4251, -94.0477

    100% uptime

    142ms
    |
    1ms
    |
    78ms
  • 174.137.11.162

    Southwest Arkansas Telephone Cooperative

    AS46632

    Texarkana

    33.4418, -94.0377

    99% uptime

    125ms
    |
    5ms
    |
    34ms
  • 34.82.210.143

    Google LLC

    AS396982

    The Dalles

    45.5946, -121.1787

    100% uptime

    145ms
    |
    5ms
    |
    56ms
  • 35.203.157.243

    Google LLC

    AS396982

    The Dalles

    45.5946, -121.1787

    100% uptime

    144ms
    |
    0ms
    |
    203ms