DNS Servers

United States of America 5520 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

  • 136.25.84.81

    Webpass Inc.

    AS19165

    San Francisco

    37.7749, -122.4194

    83% uptime

    149ms
    |
    2ms
    |
    138ms
  • 136.25.123.217

    Webpass Inc.

    AS19165

    San Francisco

    37.7749, -122.4194

    100% uptime

    149ms
    |
    2ms
    |
    90ms
  • 138.68.192.118

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    150ms
    |
    4ms
    |
    173ms
  • 138.68.208.245

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    160ms
    |
    0ms
    |
    89ms
  • 148.64.102.131

    Another Corporate ISP, LLC

    AS32329

    San Francisco

    37.7749, -122.4194

    100% uptime

    164ms
    |
    8ms
    |
    188ms
  • 158.51.80.156

    Another Corporate ISP, LLC

    AS32329

    San Francisco

    37.7749, -122.4194

    92% uptime

    153ms
    |
    4ms
    |
    182ms
  • 159.203.212.105

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    153ms
    |
    4ms
    |
    158ms
  • 162.243.131.170

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    150ms
    |
    4ms
    |
    70ms
  • 162.243.132.193

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    159ms
    |
    1ms
    |
    72ms
  • 162.243.133.229

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    92% uptime

    159ms
    |
    0ms
    |
    61ms
  • 162.243.141.9

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    152ms
    |
    4ms
    |
    61ms
  • 162.243.141.190

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    153ms
    |
    3ms
    |
    67ms
  • 172.92.13.76

    Wave Broadband

    AS54858

    San Francisco

    37.7749, -122.4194

    100% uptime

    161ms
    |
    0ms
    |
    59ms
  • 173.249.147.6

    Liquid Web, L.L.C

    AS40819

    San Francisco

    37.7749, -122.4194

    100% uptime

    162ms
    |
    2ms
    |
    60ms
  • 192.241.193.89

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    152ms
    |
    4ms
    |
    68ms
  • 192.241.194.39

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    151ms
    |
    3ms
    |
    75ms
  • 192.241.195.212

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    151ms
    |
    3ms
    |
    76ms
  • 192.241.203.157

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    152ms
    |
    3ms
    |
    59ms
  • 192.241.208.41

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    153ms
    |
    3ms
    |
    172ms
  • 192.241.209.252

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    150ms
    |
    3ms
    |
    59ms
  • 192.241.214.141

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    153ms
    |
    2ms
    |
    143ms
  • 192.241.215.202

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    154ms
    |
    3ms
    |
    76ms
  • 192.241.216.96

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    153ms
    |
    2ms
    |
    67ms
  • 192.241.226.202

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    151ms
    |
    3ms
    |
    74ms
  • 192.241.239.7

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    155ms
    |
    2ms
    |
    81ms
  • 198.199.92.86

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    153ms
    |
    2ms
    |
    70ms
  • 198.199.93.152

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    154ms
    |
    3ms
    |
    68ms
  • 198.199.94.93

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    151ms
    |
    2ms
    |
    66ms
  • 198.199.94.146

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    150ms
    |
    4ms
    |
    71ms
  • 198.199.95.243

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    152ms
    |
    3ms
    |
    73ms
  • 198.199.96.52

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    151ms
    |
    3ms
    |
    72ms
  • 198.199.97.247

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    151ms
    |
    3ms
    |
    70ms
  • 198.199.102.118

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    154ms
    |
    2ms
    |
    69ms
  • 198.199.103.88

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    153ms
    |
    3ms
    |
    58ms
  • 198.199.103.243

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    151ms
    |
    3ms
    |
    62ms
  • 198.199.105.92

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    154ms
    |
    2ms
    |
    58ms
  • 198.199.106.87

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    150ms
    |
    3ms
    |
    60ms
  • 198.199.111.100

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    153ms
    |
    3ms
    |
    57ms
  • 198.199.116.133

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    98% uptime

    154ms
    |
    2ms
    |
    63ms
  • 198.199.116.165

    DigitalOcean, LLC

    AS14061

    San Francisco

    37.7749, -122.4194

    100% uptime

    153ms
    |
    2ms
    |
    70ms
  • 208.69.40.127

    Another Corporate ISP, LLC

    AS32329

    San Francisco

    37.7749, -122.4194

    100% uptime

    152ms
    |
    3ms
    |
    188ms
  • 4.38.108.58

    Level 3 Parent, LLC

    AS3356

    San Jose

    37.3394, -121.8950

    100% uptime

    149ms
    |
    2ms
    |
    208ms
  • 12.154.238.2

    AT&T Enterprises, LLC

    AS7018

    San Jose

    37.3394, -121.8950

    100% uptime

    168ms
    |
    2ms
    |
    108ms
  • 12.215.244.148

    AT&T Enterprises, LLC

    AS7018

    San Jose

    37.3394, -121.8950

    100% uptime

    165ms
    |
    1ms
    |
    69ms
  • 12.215.244.149

    AT&T Enterprises, LLC

    AS7018

    San Jose

    37.3394, -121.8950

    100% uptime

    166ms
    |
    2ms
    |
    32ms
  • 13.64.117.187

    Microsoft Corporation

    AS8075

    San Jose

    37.3394, -121.8950

    100% uptime

    151ms
    |
    3ms
    |
    23ms
  • 23.93.88.83

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    161ms
    |
    4ms
    |
    186ms
  • 23.93.102.65

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    158ms
    |
    1ms
    |
    210ms
  • 23.168.184.1

    Kasumi Networks NA LLC

    AS30307

    San Jose

    37.3394, -121.8950

    100% uptime

    156ms
    |
    4ms
    |
    141ms
  • 23.188.240.203

    Metro Communications Company

    AS19625

    San Jose

    37.3394, -121.8950

    100% uptime

    148ms
    |
    3ms
    |
    120ms
  • 23.189.240.1

    Def, Inc

    AS399687

    San Jose

    37.3394, -121.8950

    83% uptime

    148ms
    |
    1ms
    |
    158ms
  • 23.247.136.202

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    83% uptime

    148ms
    |
    1ms
    |
    22ms
  • 23.247.137.187

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    98% uptime

    148ms
    |
    3ms
    |
    22ms
  • 23.247.137.191

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    100% uptime

    148ms
    |
    3ms
    |
    73ms
  • 23.247.137.192

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    98% uptime

    148ms
    |
    2ms
    |
    74ms
  • 24.4.233.12

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    100% uptime

    176ms
    |
    2ms
    |
    148ms
  • 24.4.245.206

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    97% uptime

    172ms
    |
    2ms
    |
    326ms
  • 38.70.200.196

    Sky Fiber Internet

    AS32212

    San Jose

    37.3394, -121.8950

    100% uptime

    167ms
    |
    0ms
    |
    200ms
  • 38.70.200.239

    Sky Fiber Internet

    AS32212

    San Jose

    37.3394, -121.8950

    98% uptime

    167ms
    |
    2ms
    |
    118ms
  • 38.213.13.237

    OCTOPUS WEB SOLUTION INC

    AS984

    San Jose

    37.3394, -121.8950

    100% uptime

    158ms
    |
    3ms
    |
    22ms
  • 44.31.47.1

    AZSIGNSHOP LLC

    AS6556

    San Jose

    37.3394, -121.8950

    98% uptime

    148ms
    |
    2ms
    |
    151ms
  • 44.31.50.1

    AZSIGNSHOP LLC

    AS6556

    San Jose

    37.3394, -121.8950

    98% uptime

    148ms
    |
    2ms
    |
    152ms
  • 44.190.40.1

    AZSIGNSHOP LLC

    AS6556

    San Jose

    37.3394, -121.8950

    100% uptime

    148ms
    |
    2ms
    |
    166ms
  • 45.45.224.215

    WireCat LLC

    AS399888

    San Jose

    37.3394, -121.8950

    98% uptime

    150ms
    |
    3ms
    |
    148ms
  • 50.250.219.197

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    83% uptime

    174ms
    |
    17ms
    |
    398ms
  • 52.119.110.242

    SYNERGY BROADBAND

    AS22768

    San Jose

    37.3394, -121.8950

    98% uptime

    149ms
    |
    2ms
    |
    327ms
  • 64.71.14.162

    WiLine Networks Inc.

    AS33544

    San Jose

    37.3394, -121.8950

    100% uptime

    146ms
    |
    0ms
    |
    112ms
  • 64.71.132.178

    Hurricane Electric LLC

    AS6939

    San Jose

    37.3394, -121.8950

    98% uptime

    177ms
    |
    14ms
    |
    213ms
  • 64.118.154.122

    Eons Data Communications Limited

    AS138997

    San Jose

    37.3394, -121.8950

    100% uptime

    163ms
    |
    1ms
    |
    121ms
  • 65.19.151.231

    Hurricane Electric LLC

    AS6939

    San Jose

    37.3394, -121.8950

    98% uptime

    175ms
    |
    9ms
    |
    132ms
  • 65.19.174.205

    Hurricane Electric LLC

    AS6939

    San Jose

    37.3394, -121.8950

    100% uptime

    175ms
    |
    14ms
    |
    216ms
  • 65.49.44.149

    Hurricane Electric LLC

    AS6939

    San Jose

    37.3394, -121.8950

    92% uptime

    173ms
    |
    2ms
    |
    222ms
  • 66.206.166.2

    Corporate West Computer Systems, Inc.

    AS13917

    San Jose

    37.3394, -121.8950

    100% uptime

    152ms
    |
    3ms
    |
    171ms
  • 66.220.29.6

    ServerOptima

    AS401742

    San Jose

    37.3394, -121.8950

    98% uptime

    148ms
    |
    3ms
    |
    58ms
  • 66.248.232.130

    AZSIGNSHOP LLC

    AS6556

    San Jose

    37.3394, -121.8950

    98% uptime

    148ms
    |
    3ms
    |
    162ms
  • 66.248.233.1

    AZSIGNSHOP LLC

    AS6556

    San Jose

    37.3394, -121.8950

    100% uptime

    148ms
    |
    1ms
    |
    134ms
  • 67.188.223.84

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    100% uptime

    171ms
    |
    10ms
    |
    299ms
  • 69.167.70.170

    GTT Communications Inc.

    AS3257

    San Jose

    37.3394, -121.8950

    100% uptime

    159ms
    |
    1ms
    |
    214ms
  • 70.36.238.26

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    179ms
    |
    5ms
    |
    73ms
  • 71.202.251.178

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    98% uptime

    172ms
    |
    2ms
    |
    318ms
  • 72.52.119.63

    Hurricane Electric LLC

    AS6939

    San Jose

    37.3394, -121.8950

    100% uptime

    179ms
    |
    2ms
    |
    148ms
  • 75.144.243.65

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    97% uptime

    174ms
    |
    2ms
    |
    176ms
  • 76.102.144.159

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    98% uptime

    168ms
    |
    2ms
    |
    310ms
  • 79.127.255.78

    Datacamp Limited

    AS60068

    San Jose

    37.3394, -121.8950

    100% uptime

    170ms
    |
    5ms
    |
    100ms
  • 95.111.214.106

    UpCloud USA Inc

    AS25697

    San Jose

    37.3394, -121.8950

    100% uptime

    162ms
    |
    1ms
    |
    20ms
  • 95.111.214.150

    UpCloud USA Inc

    AS25697

    San Jose

    37.3394, -121.8950

    100% uptime

    161ms
    |
    7ms
    |
    185ms
  • 98.51.175.13

    Comcast Cable Communications, LLC

    AS7922

    San Jose

    37.3394, -121.8950

    100% uptime

    171ms
    |
    1ms
    |
    310ms
  • 98.97.30.159

    Space Exploration Technologies Corporation

    AS14593

    San Jose

    37.3394, -121.8950

    100% uptime

    179ms
    |
    6ms
    |
    136ms
  • 98.124.168.179

    GTT Communications Inc.

    AS3257

    San Jose

    37.3394, -121.8950

    100% uptime

    152ms
    |
    5ms
    |
    20ms
  • 103.175.99.7

    Black Mesa Corporation

    AS46997

    San Jose

    37.3394, -121.8950

    100% uptime

    148ms
    |
    3ms
    |
    29ms
  • 104.193.254.92

    Hosting Solution Ltd.

    AS14576

    San Jose

    37.3394, -121.8950

    98% uptime

    148ms
    |
    3ms
    |
    66ms
  • 104.202.75.178

    Wave Broadband

    AS11404

    San Jose

    37.3394, -121.8950

    98% uptime

    163ms
    |
    1ms
    |
    118ms
  • 135.180.88.255

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    164ms
    |
    1ms
    |
    186ms
  • 135.180.131.192

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    97% uptime

    167ms
    |
    2ms
    |
    196ms
  • 135.180.161.39

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    161ms
    |
    3ms
    |
    206ms
  • 135.180.193.151

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    164ms
    |
    1ms
    |
    194ms
  • 135.180.254.125

    Sonic Telecom LLC

    AS46375

    San Jose

    37.3394, -121.8950

    100% uptime

    164ms
    |
    1ms
    |
    184ms
  • 149.97.161.171

    Equinix (EMEA) Acquisition Enterprises B.V.

    AS15830

    San Jose

    37.3394, -121.8950

    98% uptime

    155ms
    |
    5ms
    |
    197ms
  • 150.230.45.244

    Oracle Corporation

    AS31898

    San Jose

    37.3394, -121.8950

    100% uptime

    159ms
    |
    6ms
    |
    19ms
  • 154.203.130.9

    Kaopu Cloud HK Limited

    AS138915

    San Jose

    37.3394, -121.8950

    92% uptime

    146ms
    |
    1ms
    |
    182ms