DNS Servers

United States of America 4331 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

  • 45.32.137.95

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    98% uptime

    172ms
    |
    9ms
    |
    78ms
  • 45.32.140.81

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    99% uptime

    172ms
    |
    6ms
    |
    169ms
  • 45.45.224.215

    WireCat LLC

    AS399888

    Santa Clara

    37.3541, -121.9552

    99% uptime

    152ms
    |
    2ms
    |
    164ms
  • 45.63.88.223

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    100% uptime

    172ms
    |
    6ms
    |
    160ms
  • 45.63.94.173

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    99% uptime

    172ms
    |
    7ms
    |
    41ms
  • 45.77.1.168

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    98% uptime

    172ms
    |
    8ms
    |
    90ms
  • 45.77.6.22

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    100% uptime

    171ms
    |
    6ms
    |
    188ms
  • 45.77.191.178

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    99% uptime

    172ms
    |
    6ms
    |
    182ms
  • 49.51.178.84

    Tencent Building, Kejizhongyi Avenue

    AS132203

    Santa Clara

    37.3541, -121.9552

    100% uptime

    159ms
    |
    2ms
    |
    19ms
  • 49.51.247.181

    Tencent Building, Kejizhongyi Avenue

    AS132203

    Santa Clara

    37.3541, -121.9552

    100% uptime

    159ms
    |
    5ms
    |
    38ms
  • 64.23.171.176

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    2ms
    |
    86ms
  • 64.23.190.2

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    174ms
  • 64.23.237.113

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    153ms
    |
    1ms
    |
    85ms
  • 64.227.111.143

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    92ms
  • 68.74.116.177

    AT&T Enterprises, LLC

    AS7018

    Santa Clara

    37.3541, -121.9552

    100% uptime

    165ms
    |
    3ms
    |
    201ms
  • 68.74.116.180

    AT&T Enterprises, LLC

    AS7018

    Santa Clara

    37.3541, -121.9552

    96% uptime

    166ms
    |
    3ms
    |
    200ms
  • 68.183.172.102

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    150ms
    |
    1ms
    |
    92ms
  • 68.255.158.154

    AT&T Enterprises, LLC

    AS7018

    Santa Clara

    37.3541, -121.9552

    100% uptime

    164ms
    |
    3ms
    |
    43ms
  • 74.199.220.36

    GTT Communications Inc.

    AS3257

    Santa Clara

    37.3541, -121.9552

    99% uptime

    141ms
    |
    1ms
    |
    27ms
  • 75.36.6.1

    AT&T Enterprises, LLC

    AS7018

    Santa Clara

    37.3541, -121.9552

    98% uptime

    172ms
    |
    2ms
    |
    244ms
  • 104.207.151.141

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    99% uptime

    172ms
    |
    6ms
    |
    181ms
  • 104.248.75.150

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    82ms
  • 107.172.103.198

    HostPapa

    AS36352

    Santa Clara

    37.3541, -121.9552

    96% uptime

    161ms
    |
    4ms
    |
    2ms
  • 107.173.255.159

    HostPapa

    AS36352

    Santa Clara

    37.3541, -121.9552

    99% uptime

    161ms
    |
    12ms
    |
    18ms
  • 107.175.254.174

    HostPapa

    AS36352

    Santa Clara

    37.3541, -121.9552

    98% uptime

    159ms
    |
    3ms
    |
    21ms
  • 108.68.52.44

    AT&T Enterprises, LLC

    AS7018

    Santa Clara

    37.3541, -121.9552

    98% uptime

    159ms
    |
    2ms
    |
    25ms
  • 134.199.180.63

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    2ms
    |
    189ms
  • 137.184.15.37

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    152ms
    |
    1ms
    |
    136ms
  • 137.184.38.241

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    16ms
  • 137.184.184.225

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    152ms
    |
    1ms
    |
    165ms
  • 138.68.46.220

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    1ms
    |
    189ms
  • 138.197.203.142

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    78ms
  • 138.197.205.87

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    98% uptime

    152ms
    |
    1ms
    |
    78ms
  • 140.82.51.200

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    99% uptime

    171ms
    |
    6ms
    |
    22ms
  • 143.110.133.50

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    150ms
    |
    3ms
    |
    168ms
  • 143.110.152.8

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    101ms
  • 143.110.156.9

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    91ms
  • 143.110.192.163

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    150ms
    |
    1ms
    |
    94ms
  • 143.110.225.64

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    14ms
  • 143.110.225.79

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    152ms
    |
    1ms
    |
    86ms
  • 143.110.230.121

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    98% uptime

    151ms
    |
    1ms
    |
    182ms
  • 143.110.230.174

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    90ms
  • 143.198.226.111

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    94ms
  • 143.198.245.140

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    154ms
    |
    1ms
    |
    192ms
  • 144.126.213.236

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    2ms
    |
    82ms
  • 144.202.101.133

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    100% uptime

    171ms
    |
    6ms
    |
    182ms
  • 144.202.103.138

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    100% uptime

    172ms
    |
    8ms
    |
    83ms
  • 144.202.103.157

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    100% uptime

    171ms
    |
    6ms
    |
    182ms
  • 144.202.108.145

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    99% uptime

    172ms
    |
    6ms
    |
    80ms
  • 144.202.110.227

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    99% uptime

    172ms
    |
    6ms
    |
    93ms
  • 146.190.146.75

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    153ms
    |
    1ms
    |
    104ms
  • 146.190.166.16

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    153ms
    |
    1ms
    |
    97ms
  • 146.190.174.224

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    169ms
  • 147.182.194.131

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    85ms
  • 147.182.204.7

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    96ms
  • 147.182.242.105

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    4ms
    |
    88ms
  • 147.185.242.27

    Kamatera, Inc.

    AS396948

    Santa Clara

    37.3924, -121.9623

    100% uptime

    146ms
    |
    7ms
    |
    188ms
  • 149.28.205.176

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    100% uptime

    171ms
    |
    6ms
    |
    182ms
  • 149.28.223.131

    The Constant Company, LLC

    AS20473

    Santa Clara

    37.3541, -121.9552

    100% uptime

    172ms
    |
    8ms
    |
    38ms
  • 157.230.132.108

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    2ms
    |
    21ms
  • 157.230.172.4

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    2ms
    |
    90ms
  • 157.245.185.30

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    82ms
  • 157.245.187.17

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    134ms
  • 157.245.229.79

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    80ms
  • 159.65.72.168

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    151ms
    |
    2ms
    |
    84ms
  • 159.89.128.183

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    94ms
  • 159.89.159.112

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    98% uptime

    153ms
    |
    1ms
    |
    79ms
  • 159.223.194.182

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    2ms
    |
    82ms
  • 161.35.230.127

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    1ms
    |
    164ms
  • 161.35.236.242

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    2ms
    |
    97ms
  • 164.90.144.44

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    2ms
    |
    95ms
  • 164.92.71.42

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    150ms
    |
    1ms
    |
    94ms
  • 164.92.72.58

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    152ms
    |
    1ms
    |
    160ms
  • 164.92.72.185

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    96ms
  • 165.227.2.237

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    82ms
  • 165.227.16.10

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    98% uptime

    152ms
    |
    1ms
    |
    86ms
  • 165.227.16.68

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    98% uptime

    150ms
    |
    2ms
    |
    84ms
  • 165.227.60.245

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    1ms
    |
    80ms
  • 165.227.62.250

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    98% uptime

    153ms
    |
    1ms
    |
    84ms
  • 165.227.243.239

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    152ms
    |
    1ms
    |
    302ms
  • 167.99.96.113

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    153ms
    |
    2ms
    |
    85ms
  • 167.99.111.229

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    150ms
    |
    1ms
    |
    84ms
  • 167.99.171.185

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    153ms
    |
    2ms
    |
    78ms
  • 178.128.1.21

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    99% uptime

    152ms
    |
    1ms
    |
    193ms
  • 178.128.7.103

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    152ms
    |
    1ms
    |
    88ms
  • 178.128.78.246

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    151ms
    |
    1ms
    |
    92ms
  • 178.128.79.75

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    152ms
    |
    1ms
    |
    77ms
  • 192.3.127.36

    HostPapa

    AS36352

    Santa Clara

    37.3541, -121.9552

    98% uptime

    159ms
    |
    3ms
    |
    145ms
  • 206.189.165.44

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    100% uptime

    152ms
    |
    1ms
    |
    80ms
  • 206.189.168.84

    DigitalOcean, LLC

    AS14061

    Santa Clara

    37.3541, -121.9552

    98% uptime

    153ms
    |
    1ms
    |
    190ms
  • 50.213.131.228

    Comcast Cable Communications, LLC

    AS7922

    Santa Fe

    35.6870, -105.9378

    98% uptime

    161ms
    |
    3ms
    |
    344ms
  • 24.43.43.70

    Charter Communications Inc

    AS20001

    Santa Monica

    34.0195, -118.4914

    100% uptime

    178ms
    |
    2ms
    |
    142ms
  • 45.49.228.81

    Charter Communications Inc

    AS20001

    Santa Monica

    34.0195, -118.4914

    100% uptime

    177ms
    |
    7ms
    |
    55ms
  • 67.207.162.67

    Colocation America Corporation

    AS21769

    Santa Monica

    34.0901, -118.4065

    98% uptime

    147ms
    |
    6ms
    |
    68ms
  • 76.53.129.10

    Charter Communications Inc

    AS20001

    Santa Monica

    34.0195, -118.4914

    98% uptime

    178ms
    |
    8ms
    |
    193ms
  • 73.202.121.240

    Comcast Cable Communications, LLC

    AS7922

    Santa Rosa

    38.4405, -122.7144

    96% uptime

    172ms
    |
    3ms
    |
    318ms
  • 72.1.61.154

    NTINet Inc.

    AS40845

    Santee

    33.4752, -80.4865

    100% uptime

    121ms
    |
    3ms
    |
    174ms
  • 63.133.238.24

    Planet Networks

    AS3580

    Saugerties

    42.0776, -73.9529

    100% uptime

    97ms
    |
    1ms
    |
    66ms
  • 209.221.63.11

    The Seimitsu Corporation

    AS62844

    Savannah

    32.0835, -81.0998

    98% uptime

    108ms
    |
    15ms
    |
    148ms
  • 198.15.3.49

    Scio Mutual Telephone Association

    AS53823

    Scio

    44.7048, -122.8493

    100% uptime

    163ms
    |
    6ms
    |
    223ms