DNS Servers

United States of America 5386 local DNS servers

Download list

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

  • 136.50.107.201

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    95% uptime

    126ms
    |
    2ms
    |
    168ms
  • 136.51.65.140

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    100% uptime

    129ms
    |
    4ms
    |
    169ms
  • 136.51.72.58

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    100% uptime

    130ms
    |
    3ms
    |
    168ms
  • 153.33.22.205

    PAVLOV MEDIA INC

    AS23473

    San Antonio

    29.4241, -98.4936

    100% uptime

    122ms
    |
    4ms
    |
    124ms
  • 172.124.201.90

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4241, -98.4936

    99% uptime

    135ms
    |
    2ms
    |
    194ms
  • 66.44.163.249

    Nuvera

    AS23465

    Sanborn

    44.2097, -95.1286

    100% uptime

    118ms
    |
    0ms
    |
    303ms
  • 64.223.67.209

    Fidium

    AS13977

    Sanbornton

    43.4892, -71.5823

    97% uptime

    104ms
    |
    2ms
    |
    217ms
  • 38.140.110.74

    Cogent Communications, LLC

    AS174

    San Diego

    32.7157, -117.1647

    99% uptime

    164ms
    |
    2ms
    |
    105ms
  • 70.167.165.113

    Cox Communications Inc.

    AS22773

    San Diego

    32.7157, -117.1647

    99% uptime

    172ms
    |
    5ms
    |
    238ms
  • 70.183.102.102

    Cox Communications Inc.

    AS22773

    San Diego

    32.7157, -117.1647

    97% uptime

    184ms
    |
    8ms
    |
    268ms
  • 76.251.72.41

    AT&T Enterprises, LLC

    AS7018

    San Diego

    32.7157, -117.1647

    99% uptime

    167ms
    |
    2ms
    |
    68ms
  • 76.251.72.42

    AT&T Enterprises, LLC

    AS7018

    San Diego

    32.7157, -117.1647

    100% uptime

    167ms
    |
    1ms
    |
    70ms
  • 76.251.72.43

    AT&T Enterprises, LLC

    AS7018

    San Diego

    32.7157, -117.1647

    99% uptime

    165ms
    |
    2ms
    |
    54ms
  • 76.251.72.44

    AT&T Enterprises, LLC

    AS7018

    San Diego

    32.7157, -117.1647

    100% uptime

    167ms
    |
    2ms
    |
    75ms
  • 76.251.72.45

    AT&T Enterprises, LLC

    AS7018

    San Diego

    32.7157, -117.1647

    97% uptime

    165ms
    |
    1ms
    |
    73ms
  • 99.111.99.137

    AT&T Enterprises, LLC

    AS7018

    San Diego

    32.7157, -117.1647

    100% uptime

    166ms
    |
    3ms
    |
    198ms
  • 107.141.98.218

    AT&T Enterprises, LLC

    AS7018

    San Diego

    32.7157, -117.1647

    100% uptime

    162ms
    |
    3ms
    |
    216ms
  • 136.26.15.87

    Webpass Inc.

    AS19165

    San Diego

    32.7157, -117.1647

    99% uptime

    150ms
    |
    2ms
    |
    28ms
  • 136.26.44.109

    Webpass Inc.

    AS19165

    San Diego

    32.7157, -117.1647

    95% uptime

    151ms
    |
    1ms
    |
    78ms
  • 136.26.66.71

    Webpass Inc.

    AS19165

    San Diego

    32.7157, -117.1647

    100% uptime

    154ms
    |
    1ms
    |
    82ms
  • 147.203.215.99

    LightEdge Solutions

    AS11320

    San Diego

    32.7157, -117.1647

    100% uptime

    147ms
    |
    1ms
    |
    113ms
  • 173.198.121.238

    Charter Communications Inc

    AS20001

    San Diego

    32.7157, -117.1647

    100% uptime

    179ms
    |
    3ms
    |
    54ms
  • 216.240.173.2

    LightEdge Solutions

    AS11320

    San Diego

    32.7157, -117.1647

    100% uptime

    147ms
    |
    1ms
    |
    102ms
  • 216.240.173.3

    LightEdge Solutions

    AS11320

    San Diego

    32.7157, -117.1647

    100% uptime

    147ms
    |
    1ms
    |
    96ms
  • 216.240.173.164

    LightEdge Solutions

    AS11320

    San Diego

    32.7157, -117.1647

    100% uptime

    147ms
    |
    1ms
    |
    103ms
  • 12.55.202.226

    AT&T Enterprises, LLC

    AS7018

    Sanford

    28.8006, -81.2731

    100% uptime

    133ms
    |
    0ms
    |
    182ms
  • 65.175.252.189

    Breezeline

    AS11776

    Sanford

    43.4393, -70.7742

    100% uptime

    106ms
    |
    5ms
    |
    154ms
  • 67.9.90.170

    Charter Communications, Inc

    AS33363

    Sanford

    28.8006, -81.2731

    100% uptime

    132ms
    |
    4ms
    |
    298ms
  • 4.15.73.195

    Level 3 Parent, LLC

    AS3356

    San Francisco

    37.7749, -122.4194

    99% uptime

    164ms
    |
    1ms
    |
    27ms
  • 12.11.82.212

    AT&T Enterprises, LLC

    AS7018

    San Francisco

    37.7749, -122.4194

    100% uptime

    164ms
    |
    2ms
    |
    223ms
  • 12.50.186.242

    AT&T Enterprises, LLC

    AS7018

    San Francisco

    37.7749, -122.4194

    100% uptime

    164ms
    |
    2ms
    |
    241ms
  • 38.88.217.98

    Cogent Communications, LLC

    AS174

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    3ms
    |
    133ms
  • 45.55.3.11

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    160ms
    |
    1ms
    |
    114ms
  • 50.203.217.196

    Comcast Cable Communications, LLC

    AS7922

    San Francisco

    37.7749, -122.4194

    100% uptime

    160ms
    |
    1ms
    |
    97ms
  • 104.131.137.151

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    162ms
    |
    2ms
    |
    59ms
  • 104.236.158.22

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    95% uptime

    161ms
    |
    2ms
    |
    58ms
  • 107.170.241.144

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    161ms
    |
    2ms
    |
    60ms
  • 107.170.242.87

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    161ms
    |
    2ms
    |
    66ms
  • 136.24.119.177

    Webpass Inc.

    AS19165

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    1ms
    |
    102ms
  • 136.25.123.217

    Webpass Inc.

    AS19165

    San Francisco

    37.7749, -122.4194

    100% uptime

    149ms
    |
    2ms
    |
    84ms
  • 138.68.208.245

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    5ms
    |
    64ms
  • 158.51.80.156

    Another Corporate ISP, LLC

    AS32329

    San Francisco

    37.7749, -122.4194

    100% uptime

    152ms
    |
    2ms
    |
    171ms
  • 162.243.131.170

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    159ms
    |
    2ms
    |
    61ms
  • 162.243.141.190

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    161ms
    |
    2ms
    |
    72ms
  • 172.92.13.76

    Wave Broadband

    AS54858

    San Francisco

    37.7749, -122.4194

    100% uptime

    159ms
    |
    1ms
    |
    28ms
  • 173.164.192.82

    Comcast Cable Communications, LLC

    AS7922

    San Francisco

    37.7749, -122.4194

    99% uptime

    172ms
    |
    34ms
    |
    135ms
  • 173.249.147.6

    Liquid Web, L.L.C

    AS40819

    San Francisco

    37.7749, -122.4194

    99% uptime

    164ms
    |
    2ms
    |
    70ms
  • 192.241.193.89

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    1ms
    |
    72ms
  • 192.241.194.39

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    77ms
  • 192.241.195.212

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    156ms
    |
    1ms
    |
    74ms
  • 192.241.203.157

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    1ms
    |
    64ms
  • 192.241.214.141

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    160ms
  • 192.241.215.202

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    159ms
    |
    2ms
    |
    73ms
  • 192.241.216.96

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    73ms
  • 192.241.239.7

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    1ms
    |
    60ms
  • 198.199.92.86

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    76ms
  • 198.199.94.93

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    156ms
    |
    1ms
    |
    76ms
  • 198.199.94.146

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    2ms
    |
    70ms
  • 198.199.95.243

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    159ms
    |
    1ms
    |
    60ms
  • 198.199.96.52

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    155ms
    |
    1ms
    |
    62ms
  • 198.199.97.247

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    2ms
    |
    74ms
  • 198.199.102.118

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    72ms
  • 198.199.103.88

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    158ms
    |
    1ms
    |
    69ms
  • 198.199.103.243

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    62ms
  • 198.199.105.92

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    99% uptime

    157ms
    |
    1ms
    |
    73ms
  • 198.199.106.87

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    72ms
  • 198.199.110.15

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    159ms
    |
    0ms
    |
    69ms
  • 198.199.111.100

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    72ms
  • 198.199.116.133

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    156ms
    |
    1ms
    |
    71ms
  • 198.199.116.165

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    157ms
    |
    1ms
    |
    72ms
  • 199.231.70.237

    VIRTUA SYSTEMS SAS

    AS197959

    San Francisco

    37.7749, -122.4194

    95% uptime

    324ms
    |
    1ms
    |
    424ms
  • 207.142.22.19

    Cogent Communications, LLC

    AS174

    San Francisco

    37.7749, -122.4194

    97% uptime

    157ms
    |
    2ms
    |
    209ms
  • 208.69.40.127

    Another Corporate ISP, LLC

    AS32329

    San Francisco

    37.7749, -122.4194

    100% uptime

    152ms
    |
    2ms
    |
    189ms
  • 209.234.109.11

    San Mateo Regional Network, Inc.

    AS19355

    San Francisco

    37.7749, -122.4194

    95% uptime

    160ms
    |
    1ms
    |
    185ms
  • 4.38.108.58

    Level 3 Parent, LLC

    AS3356

    San Jose

    37.3394, -121.8950

    99% uptime

    149ms
    |
    1ms
    |
    206ms
  • 12.154.238.2

    AT&T Enterprises, LLC

    AS7018

    San Jose

    37.3394, -121.8950

    100% uptime

    167ms
    |
    2ms
    |
    112ms
  • 13.57.218.12

    Amazon.com, Inc.

    AS16509

    San Jose

    37.3394, -121.8950

    100% uptime

    160ms
    |
    1ms
    |
    22ms
  • 13.64.117.187

    Microsoft Corporation

    AS8075

    San Jose

    37.3394, -121.8950

    100% uptime

    152ms
    |
    4ms
    |
    18ms
  • 23.93.88.83

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    161ms
    |
    3ms
    |
    190ms
  • 23.93.102.65

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    158ms
    |
    1ms
    |
    204ms
  • 23.168.184.1

    Kasumi Networks NA LLC

    AS30307

    San Jose

    37.3394, -121.8950

    99% uptime

    160ms
    |
    3ms
    |
    134ms
  • 23.188.240.203

    Metro Communications Company

    AS19625

    San Jose

    37.3394, -121.8950

    100% uptime

    148ms
    |
    3ms
    |
    118ms
  • 23.247.137.187

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    99% uptime

    148ms
    |
    3ms
    |
    19ms
  • 23.247.137.190

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    100% uptime

    151ms
    |
    1ms
    |
    70ms
  • 23.247.137.191

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    99% uptime

    148ms
    |
    2ms
    |
    73ms
  • 23.247.137.192

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    99% uptime

    148ms
    |
    2ms
    |
    71ms
  • 24.4.233.12

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    100% uptime

    176ms
    |
    3ms
    |
    142ms
  • 24.4.245.206

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    100% uptime

    172ms
    |
    2ms
    |
    310ms
  • 38.70.200.196

    Sky Fiber Internet

    AS32212

    San Jose

    37.3394, -121.8950

    99% uptime

    168ms
    |
    0ms
    |
    190ms
  • 38.70.200.197

    Sky Fiber Internet

    AS32212

    San Jose

    37.3394, -121.8950

    95% uptime

    174ms
    |
    0ms
    |
    102ms
  • 38.70.200.239

    Sky Fiber Internet

    AS32212

    San Jose

    37.3394, -121.8950

    100% uptime

    173ms
    |
    4ms
    |
    192ms
  • 44.31.47.1

    AZSIGNSHOP LLC

    AS6556

    San Jose

    37.3394, -121.8950

    100% uptime

    151ms
    |
    2ms
    |
    148ms
  • 44.190.40.1

    AZSIGNSHOP LLC

    AS6556

    San Jose

    37.3394, -121.8950

    97% uptime

    148ms
    |
    2ms
    |
    147ms
  • 45.45.224.215

    WireCat LLC

    AS399888

    San Jose

    37.3394, -121.8950

    100% uptime

    156ms
    |
    2ms
    |
    142ms
  • 50.147.97.210

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    95% uptime

    166ms
    |
    1ms
    |
    126ms
  • 50.196.174.178

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    100% uptime

    176ms
    |
    7ms
    |
    147ms
  • 50.209.143.169

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    97% uptime

    170ms
    |
    2ms
    |
    150ms
  • 52.119.110.242

    SYNERGY BROADBAND

    AS22768

    San Jose

    37.3394, -121.8950

    99% uptime

    149ms
    |
    2ms
    |
    315ms
  • 64.13.170.93

    Wave Broadband

    AS11404

    San Jose

    37.3394, -121.8950

    100% uptime

    162ms
    |
    0ms
    |
    10ms
  • 64.13.170.94

    Wave Broadband

    AS11404

    San Jose

    37.3394, -121.8950

    100% uptime

    159ms
    |
    0ms
    |
    11ms