DNS Servers

United States of America 4316 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

  • 12.230.136.81

    AT&T Enterprises, LLC

    AS7018

    Oak Grove

    32.8610, -91.3885

    100% uptime

    150ms
    |
    1ms
    |
    58ms
  • 12.26.58.58

    AT&T Enterprises, LLC

    AS7018

    Oakland

    37.8044, -122.2708

    96% uptime

    162ms
    |
    2ms
    |
    184ms
  • 50.175.206.250

    Comcast Cable Communications, LLC

    AS7922

    Oakland

    37.8044, -122.2708

    98% uptime

    168ms
    |
    2ms
    |
    234ms
  • 67.180.154.234

    Comcast Cable Communications, LLC

    AS7922

    Oakland

    37.8044, -122.2708

    100% uptime

    176ms
    |
    2ms
    |
    325ms
  • 96.74.95.33

    Comcast Cable Communications, LLC

    AS7922

    Oakland

    37.8044, -122.2708

    100% uptime

    170ms
    |
    1ms
    |
    109ms
  • 104.251.70.27

    Shenandoah Cable Television LLC

    AS4922

    Oakland

    39.4079, -79.4067

    98% uptime

    127ms
    |
    3ms
    |
    122ms
  • 135.180.163.75

    Sonic Telecom LLC

    AS46375

    Oakland

    37.8044, -122.2708

    96% uptime

    161ms
    |
    4ms
    |
    186ms
  • 135.180.195.65

    Sonic Telecom LLC

    AS46375

    Oakland

    37.8044, -122.2708

    100% uptime

    164ms
    |
    5ms
    |
    201ms
  • 184.23.23.56

    Sonic Telecom LLC

    AS46375

    Oakland

    37.8044, -122.2708

    100% uptime

    160ms
    |
    6ms
    |
    224ms
  • 204.111.97.96

    Shenandoah Cable Television LLC

    AS4922

    Oakland

    39.4079, -79.4067

    100% uptime

    126ms
    |
    7ms
    |
    127ms
  • 216.227.34.5

    Fidium

    AS5742

    Oblong

    39.0020, -87.9089

    100% uptime

    119ms
    |
    3ms
    |
    188ms
  • 137.83.64.121

    Coast Communications Company

    AS55214

    Ocean Shores

    46.9737, -124.1563

    100% uptime

    170ms
    |
    11ms
    |
    230ms
  • 137.83.65.87

    Coast Communications Company

    AS55214

    Ocean Shores

    46.9737, -124.1563

    100% uptime

    175ms
    |
    6ms
    |
    238ms
  • 216.116.1.0

    Coast Communications Company

    AS55214

    Ocean Shores

    46.9737, -124.1563

    100% uptime

    172ms
    |
    7ms
    |
    238ms
  • 96.18.5.227

    CABLE ONE, INC.

    AS11492

    Odessa

    31.8457, -102.3676

    100% uptime

    135ms
    |
    1ms
    |
    173ms
  • 96.18.5.230

    CABLE ONE, INC.

    AS11492

    Odessa

    31.8457, -102.3676

    100% uptime

    131ms
    |
    1ms
    |
    188ms
  • 50.222.146.20

    Comcast Cable Communications, LLC

    AS33660

    Ogden

    41.2230, -111.9738

    100% uptime

    155ms
    |
    4ms
    |
    127ms
  • 64.67.140.128

    PenTeleData Inc.

    AS3737

    Ogdensburg

    41.0818, -74.5924

    99% uptime

    104ms
    |
    5ms
    |
    156ms
  • 66.71.192.2

    U S A CHOICE INTERNET SERVICES CO.

    AS14438

    Oil City

    41.4340, -79.7064

    98% uptime

    99ms
    |
    2ms
    |
    182ms
  • 66.71.192.5

    U S A CHOICE INTERNET SERVICES CO.

    AS14438

    Oil City

    41.4340, -79.7064

    98% uptime

    100ms
    |
    2ms
    |
    181ms
  • 73.145.136.233

    Comcast Cable Communications, LLC

    AS7922

    Okemos

    42.7223, -84.4275

    100% uptime

    131ms
    |
    3ms
    |
    224ms
  • 66.210.46.251

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    99% uptime

    151ms
    |
    7ms
    |
    192ms
  • 66.210.95.51

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    142ms
    |
    4ms
    |
    212ms
  • 66.210.95.52

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    141ms
    |
    5ms
    |
    191ms
  • 66.210.95.54

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    147ms
    |
    5ms
    |
    220ms
  • 66.210.95.56

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    98% uptime

    146ms
    |
    13ms
    |
    196ms
  • 66.210.95.58

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    149ms
    |
    21ms
    |
    194ms
  • 68.12.80.254

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    147ms
    |
    4ms
    |
    97ms
  • 68.15.248.5

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    153ms
    |
    3ms
    |
    249ms
  • 70.165.16.81

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    149ms
    |
    4ms
    |
    191ms
  • 70.182.81.217

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    154ms
    |
    3ms
    |
    236ms
  • 70.182.95.235

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    150ms
    |
    4ms
    |
    251ms
  • 72.200.200.234

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    98% uptime

    148ms
    |
    4ms
    |
    108ms
  • 98.161.89.89

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    156ms
    |
    5ms
    |
    244ms
  • 98.191.192.73

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    158ms
    |
    19ms
    |
    243ms
  • 98.191.197.122

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    96% uptime

    152ms
    |
    5ms
    |
    241ms
  • 98.191.197.152

    Cox Communications Inc.

    AS22773

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    154ms
    |
    4ms
    |
    246ms
  • 136.228.100.21

    OEC Fiber

    AS53449

    Oklahoma City

    35.4676, -97.5164

    100% uptime

    127ms
    |
    3ms
    |
    180ms
  • 50.86.33.218

    C Spire Fiber

    AS11272

    Olive Branch

    34.9618, -89.8295

    100% uptime

    114ms
    |
    2ms
    |
    31ms
  • 73.11.202.80

    Comcast Cable Communications, LLC

    AS7922

    Olympia

    47.0449, -122.9017

    100% uptime

    188ms
    |
    3ms
    |
    361ms
  • 67.224.126.210

    Northern Arkansas Telephone Company

    AS35894

    Omaha

    36.4523, -93.1885

    98% uptime

    132ms
    |
    2ms
    |
    68ms
  • 70.182.34.98

    Cox Communications Inc.

    AS22773

    Omaha

    41.2563, -95.9404

    98% uptime

    125ms
    |
    0ms
    |
    178ms
  • 98.172.137.235

    Cox Communications Inc.

    AS22773

    Omaha

    41.2563, -95.9404

    100% uptime

    134ms
    |
    4ms
    |
    192ms
  • 107.167.242.54

    NebraskaLink

    AS16851

    Omaha

    41.2563, -95.9404

    100% uptime

    131ms
    |
    5ms
    |
    82ms
  • 138.199.117.222

    Unite Private Networks LLC.

    AS15164

    Omaha

    41.2563, -95.9404

    100% uptime

    122ms
    |
    3ms
    |
    162ms
  • 162.212.18.169

    NebraskaLink

    AS16851

    Omaha

    41.2563, -95.9404

    96% uptime

    132ms
    |
    10ms
    |
    151ms
  • 64.139.98.11

    NCI Data.com, Inc.

    AS20474

    Omak

    48.4110, -119.5276

    96% uptime

    168ms
    |
    6ms
    |
    237ms
  • 206.225.11.50

    Oneida Special School District

    AS400994

    Oneida

    36.4981, -84.5127

    100% uptime

    114ms
    |
    3ms
    |
    174ms
  • 70.98.53.114

    Inyo Networks

    AS26721

    Ontario

    34.0633, -117.6509

    96% uptime

    148ms
    |
    2ms
    |
    79ms
  • 76.81.219.194

    Charter Communications Inc

    AS20001

    Ontario

    34.0633, -117.6509

    98% uptime

    167ms
    |
    2ms
    |
    216ms
  • 204.10.176.6

    DCM Cable Inc.

    AS1819

    On Top of the World

    29.1152, -82.2913

    96% uptime

    121ms
    |
    2ms
    |
    146ms
  • 204.10.176.9

    DCM Cable Inc.

    AS1819

    On Top of the World

    29.1152, -82.2913

    100% uptime

    123ms
    |
    1ms
    |
    93ms
  • 62.146.230.172

    Contabo Inc.

    AS40021

    Orangeburg

    41.0465, -73.9496

    100% uptime

    92ms
    |
    3ms
    |
    219ms
  • 66.94.98.62

    Contabo Inc.

    AS40021

    Orangeburg

    41.0465, -73.9496

    100% uptime

    92ms
    |
    4ms
    |
    150ms
  • 66.94.98.175

    Contabo Inc.

    AS40021

    Orangeburg

    41.0465, -73.9496

    96% uptime

    91ms
    |
    10ms
    |
    261ms
  • 86.48.29.245

    Contabo Inc.

    AS40021

    Orangeburg

    41.0465, -73.9496

    100% uptime

    97ms
    |
    19ms
    |
    166ms
  • 154.38.186.106

    Contabo Inc.

    AS40021

    Orangeburg

    41.0465, -73.9496

    100% uptime

    93ms
    |
    17ms
    |
    69ms
  • 154.53.54.147

    Contabo Inc.

    AS40021

    Orangeburg

    41.0465, -73.9496

    99% uptime

    92ms
    |
    3ms
    |
    210ms
  • 199.38.168.46

    LiteWire Internet Services, Inc.

    AS32003

    Oregon

    42.9261, -89.3846

    98% uptime

    111ms
    |
    2ms
    |
    245ms
  • 199.38.168.47

    LiteWire Internet Services, Inc.

    AS32003

    Oregon

    42.9261, -89.3846

    100% uptime

    111ms
    |
    9ms
    |
    232ms
  • 23.166.40.38

    FiberState, LLC

    AS26042

    Orem

    40.2969, -111.6946

    100% uptime

    131ms
    |
    3ms
    |
    2ms
  • 65.133.15.138

    CenturyLink Communications, LLC

    AS209

    Orlando

    28.5383, -81.3792

    99% uptime

    127ms
    |
    5ms
    |
    194ms
  • 67.23.251.186

    HostDime.com, Inc.

    AS33182

    Orlando

    28.6214, -81.4294

    99% uptime

    119ms
    |
    12ms
    |
    189ms
  • 72.29.91.88

    HostDime.com, Inc.

    AS33182

    Orlando

    28.6214, -81.4294

    100% uptime

    121ms
    |
    1ms
    |
    122ms
  • 72.238.80.24

    Charter Communications, Inc

    AS33363

    Orlando

    28.5383, -81.3792

    100% uptime

    135ms
    |
    12ms
    |
    236ms
  • 73.21.247.254

    Comcast Cable Communications, LLC

    AS7922

    Orlando

    28.5383, -81.3792

    98% uptime

    153ms
    |
    2ms
    |
    305ms
  • 199.96.84.106

    SBA Connect, LLC

    AS845

    Orlando

    28.5383, -81.3792

    99% uptime

    119ms
    |
    3ms
    |
    60ms
  • 208.111.1.1

    Omnispring, LLC

    AS32083

    Orlando

    28.5383, -81.3792

    100% uptime

    131ms
    |
    6ms
    |
    145ms
  • 157.96.189.161

    Granite Telecommunications LLC

    AS16504

    Orting

    47.0979, -122.2043

    99% uptime

    154ms
    |
    3ms
    |
    224ms
  • 104.152.240.29

    NebraskaLink

    AS16851

    Oshkosh

    41.4050, -102.3444

    100% uptime

    148ms
    |
    11ms
    |
    245ms
  • 98.102.114.166

    Charter Communications Inc

    AS10796

    Ottawa

    41.0192, -84.0472

    98% uptime

    132ms
    |
    3ms
    |
    271ms
  • 208.90.228.112

    Aureon Network Services

    AS5056

    Ottumwa

    41.0200, -92.4113

    100% uptime

    112ms
    |
    2ms
    |
    140ms
  • 199.180.111.225

    White Cloud Communications US, LLC

    AS54142

    Owenton

    38.5367, -84.8434

    100% uptime

    134ms
    |
    0ms
    |
    133ms
  • 69.41.14.42

    Covenant Eyes, Inc.

    AS47018

    Owosso

    42.9978, -84.1766

    96% uptime

    105ms
    |
    13ms
    |
    175ms
  • 192.225.240.160

    Foothills Rural Telephone Cooperative Corporation, Inc.

    AS394111

    Paintsville

    37.8145, -82.8071

    99% uptime

    103ms
    |
    3ms
    |
    100ms
  • 209.64.46.178

    AT&T Enterprises, LLC

    AS7018

    Pajaro

    36.9041, -121.7486

    100% uptime

    173ms
    |
    3ms
    |
    150ms
  • 64.183.2.130

    Charter Communications Inc

    AS20001

    Palm Desert

    33.7225, -116.3770

    100% uptime

    179ms
    |
    8ms
    |
    35ms
  • 76.79.165.170

    Charter Communications Inc

    AS20001

    Palm Desert

    33.7225, -116.3770

    100% uptime

    170ms
    |
    3ms
    |
    116ms
  • 76.81.213.122

    Charter Communications Inc

    AS20001

    Palm Desert

    33.7225, -116.3770

    98% uptime

    169ms
    |
    2ms
    |
    207ms
  • 24.60.120.235

    Comcast Cable Communications, LLC

    AS7922

    Palmer

    42.1584, -72.3287

    98% uptime

    119ms
    |
    8ms
    |
    264ms
  • 67.149.211.235

    WideOpenWest Finance LLC

    AS12083

    Palm Harbor

    28.0848, -82.7253

    100% uptime

    143ms
    |
    3ms
    |
    242ms
  • 24.236.115.154

    WideOpenWest Finance LLC

    AS12083

    Panama City

    30.1595, -85.6598

    96% uptime

    130ms
    |
    2ms
    |
    298ms
  • 142.190.24.243

    Uniti Fiber Holdings Inc.

    AS13760

    Panama City Beach

    30.1766, -85.8055

    100% uptime

    126ms
    |
    8ms
    |
    278ms
  • 142.190.53.182

    Uniti Fiber Holdings Inc.

    AS13760

    Panama City Beach

    30.1766, -85.8055

    99% uptime

    125ms
    |
    11ms
    |
    177ms
  • 143.59.64.147

    WideOpenWest Finance LLC

    AS12083

    Panama City Beach

    30.1766, -85.8055

    98% uptime

    130ms
    |
    2ms
    |
    200ms
  • 167.142.173.27

    Aureon Network Services

    AS5056

    Panora

    41.6917, -94.3630

    98% uptime

    106ms
    |
    2ms
    |
    129ms
  • 12.77.146.242

    AT&T Enterprises, LLC

    AS7018

    Paola

    38.5722, -94.8791

    98% uptime

    135ms
    |
    7ms
    |
    35ms
  • 205.185.127.120

    FranTech Solutions

    AS53667

    Paradise

    36.0972, -115.1467

    100% uptime

    137ms
    |
    3ms
    |
    149ms
  • 12.245.47.226

    AT&T Enterprises, LLC

    AS7018

    Parkland

    26.3101, -80.2373

    98% uptime

    138ms
    |
    2ms
    |
    250ms
  • 174.126.221.55

    CABLE ONE, INC.

    AS11492

    Parsons

    37.3403, -95.2611

    99% uptime

    155ms
    |
    10ms
    |
    70ms
  • 208.73.20.147

    Reliable Hosting Services

    AS29713

    Paw Paw

    39.5320, -78.4583

    100% uptime

    113ms
    |
    0ms
    |
    72ms
  • 47.223.230.37

    Optimum

    AS19108

    Pearisburg

    37.3267, -80.7370

    98% uptime

    159ms
    |
    7ms
    |
    248ms
  • 50.234.69.136

    Comcast Cable Communications, LLC

    AS7922

    Pekin

    40.5675, -89.6407

    100% uptime

    122ms
    |
    1ms
    |
    252ms
  • 66.94.211.114

    ITV-3

    AS12119

    Pekin

    40.5675, -89.6407

    100% uptime

    112ms
    |
    1ms
    |
    166ms
  • 50.226.228.170

    Comcast Cable Communications, LLC

    AS7922

    Pembroke Pines

    26.0032, -80.2239

    98% uptime

    135ms
    |
    2ms
    |
    57ms
  • 66.210.79.170

    Cox Communications Inc.

    AS22773

    Pensacola

    30.4213, -87.2169

    100% uptime

    134ms
    |
    6ms
    |
    186ms
  • 68.101.13.17

    Cox Communications Inc.

    AS22773

    Pensacola

    30.4213, -87.2169

    100% uptime

    142ms
    |
    1ms
    |
    66ms
  • 70.169.171.200

    Cox Communications Inc.

    AS22773

    Pensacola

    30.4213, -87.2169

    98% uptime

    148ms
    |
    2ms
    |
    208ms
  • 72.215.44.174

    Cox Communications Inc.

    AS22773

    Pensacola

    30.4213, -87.2169

    99% uptime

    140ms
    |
    2ms
    |
    71ms
  • 174.69.27.138

    Cox Communications Inc.

    AS22773

    Pensacola

    30.4213, -87.2169

    100% uptime

    141ms
    |
    1ms
    |
    81ms