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

  • 72.18.55.144

    Empire Access

    AS40545

    Batavia

    42.9981, -78.1875

    100% uptime

    89ms
    |
    4ms
    |
    150ms
  • 68.11.134.72

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    158ms
    |
    4ms
    |
    111ms
  • 68.11.135.120

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    157ms
    |
    3ms
    |
    112ms
  • 68.11.135.206

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    99% uptime

    159ms
    |
    4ms
    |
    110ms
  • 68.15.171.116

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    162ms
    |
    6ms
    |
    269ms
  • 68.226.173.184

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    154ms
    |
    6ms
    |
    116ms
  • 68.226.173.246

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    160ms
    |
    5ms
    |
    101ms
  • 68.226.173.251

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    159ms
    |
    4ms
    |
    113ms
  • 68.226.252.32

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    154ms
    |
    4ms
    |
    114ms
  • 68.226.252.76

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    157ms
    |
    5ms
    |
    103ms
  • 68.226.252.86

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    154ms
    |
    4ms
    |
    100ms
  • 68.226.252.98

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    96% uptime

    159ms
    |
    5ms
    |
    104ms
  • 68.226.252.102

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    156ms
    |
    5ms
    |
    103ms
  • 68.226.252.103

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    99% uptime

    158ms
    |
    3ms
    |
    103ms
  • 68.226.252.166

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    156ms
    |
    4ms
    |
    106ms
  • 68.226.252.171

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    96% uptime

    154ms
    |
    4ms
    |
    109ms
  • 68.226.252.174

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    162ms
    |
    4ms
    |
    102ms
  • 68.226.252.185

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    157ms
    |
    5ms
    |
    109ms
  • 68.226.252.207

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    157ms
    |
    5ms
    |
    108ms
  • 68.226.252.217

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    154ms
    |
    3ms
    |
    110ms
  • 68.229.148.251

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    163ms
    |
    5ms
    |
    102ms
  • 70.180.56.16

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    162ms
    |
    5ms
    |
    98ms
  • 70.186.173.2

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    162ms
    |
    5ms
    |
    96ms
  • 70.186.173.4

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    154ms
    |
    4ms
    |
    106ms
  • 70.189.29.101

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    154ms
    |
    4ms
    |
    102ms
  • 70.189.30.138

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    157ms
    |
    20ms
    |
    105ms
  • 72.203.156.208

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    156ms
    |
    4ms
    |
    103ms
  • 98.179.196.49

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    157ms
    |
    6ms
    |
    104ms
  • 98.179.197.55

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    98% uptime

    157ms
    |
    5ms
    |
    100ms
  • 174.64.185.41

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    96% uptime

    157ms
    |
    8ms
    |
    103ms
  • 174.78.28.46

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    159ms
    |
    21ms
    |
    274ms
  • 184.190.195.211

    Cox Communications Inc.

    AS22773

    Baton Rouge

    30.4433, -91.1875

    100% uptime

    157ms
    |
    5ms
    |
    98ms
  • 50.173.111.205

    Comcast Cable Communications, LLC

    AS7922

    Baytown

    29.7355, -94.9774

    100% uptime

    129ms
    |
    7ms
    |
    222ms
  • 64.203.227.96

    Hargray Communications Group, Inc.

    AS22646

    Beaufort

    32.4317, -80.6699

    100% uptime

    157ms
    |
    4ms
    |
    79ms
  • 74.195.2.115

    Optimum

    AS19108

    Beckley

    37.7782, -81.1882

    96% uptime

    120ms
    |
    1ms
    |
    192ms
  • 104.36.74.241

    Holland Board of Public Works

    AS395945

    Beechwood

    42.7970, -86.1259

    99% uptime

    105ms
    |
    5ms
    |
    120ms
  • 70.117.73.13

    Charter Communications Inc

    AS11427

    Beeville

    28.4010, -97.7497

    98% uptime

    155ms
    |
    2ms
    |
    264ms
  • 100.16.174.108

    Verizon Business

    AS701

    Bel Air

    39.5359, -76.3483

    100% uptime

    101ms
    |
    1ms
    |
    56ms
  • 64.83.241.170

    Clearwave Fiber

    AS40702

    Belleville

    38.5200, -89.9840

    100% uptime

    123ms
    |
    5ms
    |
    80ms
  • 71.255.159.74

    Fidium

    AS13977

    Belmont

    43.4454, -71.4779

    98% uptime

    107ms
    |
    2ms
    |
    163ms
  • 198.37.119.180

    H4Y Technologies LLC

    AS397373

    Bend

    44.0582, -121.3153

    100% uptime

    165ms
    |
    8ms
    |
    79ms
  • 67.134.109.117

    Cherryland Services Inc

    AS13904

    Benson

    31.9679, -110.2945

    100% uptime

    171ms
    |
    10ms
    |
    84ms
  • 96.30.227.29

    Cherryland Services Inc

    AS13904

    Benson

    31.9679, -110.2945

    98% uptime

    171ms
    |
    8ms
    |
    196ms
  • 24.35.129.141

    Fidelity Communication International Inc.

    AS11976

    Benton

    34.5645, -92.5868

    100% uptime

    150ms
    |
    10ms
    |
    58ms
  • 149.76.128.138

    Fidelity Communication International Inc.

    AS11976

    Benton

    34.5645, -92.5868

    100% uptime

    153ms
    |
    6ms
    |
    116ms
  • 68.65.126.248

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    10ms
    |
    0ms
    |
    18ms
  • 68.65.127.9

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    10ms
    |
    0ms
    |
    0ms
  • 68.65.127.15

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    2ms
  • 68.65.127.26

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    22ms
  • 68.65.127.73

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    10ms
    |
    0ms
    |
    19ms
  • 68.65.127.75

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    10ms
    |
    0ms
    |
    0ms
  • 68.65.127.76

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    1ms
  • 68.65.127.77

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    1ms
  • 68.65.127.78

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    96% uptime

    9ms
    |
    0ms
    |
    22ms
  • 68.65.127.79

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    25ms
  • 68.65.127.87

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    10ms
    |
    0ms
    |
    14ms
  • 68.65.127.88

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    22ms
  • 68.65.127.90

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    8ms
  • 68.65.127.92

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    10ms
    |
    0ms
    |
    0ms
  • 68.65.127.94

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    1ms
  • 68.65.127.95

    Quad9

    AS398891

    Berkeley

    37.8784, -122.2655

    100% uptime

    9ms
    |
    0ms
    |
    1ms
  • 204.111.200.241

    Shenandoah Cable Television LLC

    AS4922

    Berryville

    39.1518, -77.9822

    100% uptime

    110ms
    |
    2ms
    |
    139ms
  • 66.25.106.240

    Charter Communications, Inc

    AS33363

    Bessemer

    33.4018, -86.9544

    96% uptime

    142ms
    |
    3ms
    |
    265ms
  • 24.63.129.33

    Comcast Cable Communications, LLC

    AS7922

    Bethel

    41.3712, -73.4140

    100% uptime

    116ms
    |
    2ms
    |
    216ms
  • 71.27.81.9

    Comcast Cable Communications, LLC

    AS7922

    Bethel Park

    40.3276, -80.0395

    99% uptime

    131ms
    |
    2ms
    |
    146ms
  • 70.44.138.242

    PenTeleData Inc.

    AS3737

    Bethlehem

    40.6259, -75.3705

    100% uptime

    99ms
    |
    2ms
    |
    202ms
  • 24.121.197.184

    Optimum

    AS19108

    Big Park

    34.7803, -111.7626

    96% uptime

    186ms
    |
    8ms
    |
    378ms
  • 47.47.150.90

    Charter Communications LLC

    AS33588

    Billings

    45.7833, -108.5007

    100% uptime

    176ms
    |
    7ms
    |
    220ms
  • 66.171.31.67

    Nemont

    AS33339

    Billings

    45.7833, -108.5007

    100% uptime

    150ms
    |
    2ms
    |
    63ms
  • 69.144.98.235

    Charter Communications LLC

    AS33588

    Billings

    45.7833, -108.5007

    98% uptime

    184ms
    |
    7ms
    |
    359ms
  • 69.144.243.178

    Charter Communications LLC

    AS33588

    Billings

    45.7833, -108.5007

    100% uptime

    190ms
    |
    8ms
    |
    64ms
  • 184.167.52.236

    Charter Communications LLC

    AS33588

    Billings

    45.7833, -108.5007

    98% uptime

    183ms
    |
    9ms
    |
    255ms
  • 67.60.112.128

    CABLE ONE, INC.

    AS11492

    Biloxi

    30.3960, -88.8853

    100% uptime

    160ms
    |
    4ms
    |
    95ms
  • 67.60.174.165

    CABLE ONE, INC.

    AS11492

    Biloxi

    30.3960, -88.8853

    98% uptime

    155ms
    |
    5ms
    |
    178ms
  • 69.92.113.148

    CABLE ONE, INC.

    AS11492

    Biloxi

    30.3960, -88.8853

    100% uptime

    150ms
    |
    4ms
    |
    248ms
  • 24.238.62.37

    PenTeleData Inc.

    AS3737

    Birdsboro

    40.2645, -75.8041

    98% uptime

    101ms
    |
    2ms
    |
    24ms
  • 35.130.128.250

    Charter Communications LLC

    AS20115

    Birmingham

    33.5207, -86.8025

    100% uptime

    124ms
    |
    2ms
    |
    200ms
  • 192.111.27.151

    dcBLOX, Inc.

    AS395567

    Birmingham

    33.5062, -86.8003

    100% uptime

    114ms
    |
    2ms
    |
    61ms
  • 184.83.220.116

    Midcontinent Communications

    AS11232

    Bismarck

    46.8083, -100.7837

    100% uptime

    129ms
    |
    4ms
    |
    278ms
  • 205.237.155.106

    KanOkla Communications, LLC

    AS13927

    Blackwell

    36.8045, -97.2828

    98% uptime

    129ms
    |
    3ms
    |
    209ms
  • 76.49.202.45

    Charter Communications Inc

    AS11426

    Bladenboro

    34.5388, -78.7875

    98% uptime

    126ms
    |
    4ms
    |
    306ms
  • 50.190.171.49

    Comcast Cable Communications, LLC

    AS7922

    Blaine

    45.1608, -93.2349

    100% uptime

    134ms
    |
    4ms
    |
    184ms
  • 63.133.224.135

    Planet Networks

    AS3580

    Blairstown

    40.9829, -74.9604

    100% uptime

    94ms
    |
    1ms
    |
    60ms
  • 151.213.216.29

    Windstream Communications LLC

    AS7029

    Blairsville

    34.8762, -83.9582

    100% uptime

    144ms
    |
    5ms
    |
    194ms
  • 138.89.160.157

    Verizon Business

    AS701

    Bloomfield

    40.8068, -74.1854

    98% uptime

    107ms
    |
    1ms
    |
    118ms
  • 24.127.86.188

    Comcast Cable Communications, LLC

    AS7922

    Bloomfield Hills

    42.5836, -83.2455

    100% uptime

    126ms
    |
    3ms
    |
    204ms
  • 12.220.116.66

    AT&T Enterprises, LLC

    AS7018

    Bloomington

    39.1653, -86.5264

    99% uptime

    117ms
    |
    1ms
    |
    32ms
  • 65.126.86.22

    CenturyLink Communications, LLC

    AS209

    Bloomington

    44.8408, -93.2983

    100% uptime

    133ms
    |
    11ms
    |
    184ms
  • 107.152.9.149

    CIRBN, LLC

    AS62523

    Bloomington

    40.4842, -88.9937

    100% uptime

    102ms
    |
    5ms
    |
    156ms
  • 199.255.167.226

    STL OFFICE SOLUTIONS, INC.

    AS1420

    Bloomington

    40.4842, -88.9937

    99% uptime

    102ms
    |
    7ms
    |
    155ms
  • 69.163.31.74

    Bevcomm

    AS15100

    Blue Earth

    43.6375, -94.1022

    99% uptime

    112ms
    |
    3ms
    |
    92ms
  • 67.216.143.20

    Hargray Communications Group, Inc.

    AS22646

    Bluffton

    32.2371, -80.8604

    100% uptime

    150ms
    |
    3ms
    |
    50ms
  • 216.163.5.255

    Ritter Communications

    AS23404

    Blytheville

    35.9273, -89.9190

    100% uptime

    125ms
    |
    2ms
    |
    27ms
  • 44.230.204.152

    Amazon.com, Inc.

    AS16509

    Boardman

    45.8399, -119.7006

    100% uptime

    177ms
    |
    2ms
    |
    231ms
  • 52.89.26.170

    Amazon.com, Inc.

    AS16509

    Boardman

    45.8399, -119.7006

    98% uptime

    177ms
    |
    3ms
    |
    104ms
  • 54.187.149.240

    Amazon.com, Inc.

    AS16509

    Boardman

    45.8399, -119.7006

    99% uptime

    177ms
    |
    2ms
    |
    108ms
  • 50.243.228.245

    Comcast Cable Communications, LLC

    AS7922

    Boca Del Mar

    26.3451, -80.1467

    99% uptime

    146ms
    |
    2ms
    |
    68ms
  • 4.4.242.34

    Level 3 Parent, LLC

    AS3356

    Boise

    43.6135, -116.2035

    98% uptime

    181ms
    |
    6ms
    |
    322ms
  • 4.39.152.178

    Level 3 Parent, LLC

    AS3356

    Boise

    43.6135, -116.2035

    96% uptime

    159ms
    |
    2ms
    |
    217ms
  • 24.116.182.210

    CABLE ONE, INC.

    AS11492

    Boise

    43.6135, -116.2035

    98% uptime

    180ms
    |
    3ms
    |
    93ms