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

  • 150.238.22.167

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    86ms
  • 150.238.22.168

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    87ms
  • 150.238.22.169

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    84ms
  • 150.238.22.170

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    90ms
  • 150.238.106.186

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    136ms
    |
    1ms
    |
    156ms
  • 150.240.97.138

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    133ms
    |
    1ms
    |
    93ms
  • 150.240.97.147

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    82ms
  • 150.240.97.148

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    84ms
  • 150.240.97.151

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    92ms
  • 150.240.97.152

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    98% uptime

    135ms
    |
    1ms
    |
    89ms
  • 150.240.97.160

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    137ms
    |
    1ms
    |
    90ms
  • 150.240.97.171

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    134ms
    |
    1ms
    |
    85ms
  • 150.240.97.172

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    95ms
  • 150.240.97.173

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    82ms
  • 150.240.97.176

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    88ms
  • 150.240.97.177

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    84ms
  • 150.240.97.201

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    84ms
  • 150.240.97.217

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    87ms
  • 150.240.97.220

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    136ms
    |
    1ms
    |
    82ms
  • 150.240.97.226

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    82ms
  • 150.240.97.239

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    98% uptime

    135ms
    |
    1ms
    |
    91ms
  • 150.240.97.240

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    157ms
  • 150.240.97.243

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    2ms
    |
    92ms
  • 152.186.133.242

    Verizon Business

    AS701

    Dallas

    32.7831, -96.8067

    100% uptime

    149ms
    |
    3ms
    |
    80ms
  • 155.103.109.7

    Digital Innovations by Ryan

    AS54365

    Dallas

    32.7831, -96.8067

    96% uptime

    124ms
    |
    17ms
    |
    43ms
  • 155.138.241.104

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    98% uptime

    138ms
    |
    5ms
    |
    84ms
  • 155.138.247.210

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    99% uptime

    143ms
    |
    5ms
    |
    81ms
  • 155.138.254.190

    The Constant Company, LLC

    AS20473

    Dallas

    32.7831, -96.8067

    98% uptime

    143ms
    |
    22ms
    |
    84ms
  • 162.253.185.190

    Laredo Connections Inc

    AS54960

    Dallas

    32.7813, -96.8019

    100% uptime

    155ms
    |
    2ms
    |
    198ms
  • 163.245.195.66

    Interserver, Inc

    AS26666

    Dallas

    32.7831, -96.8067

    98% uptime

    126ms
    |
    1ms
    |
    143ms
  • 168.100.18.50

    ADT LLC

    AS62958

    Dallas

    32.7831, -96.8067

    100% uptime

    137ms
    |
    3ms
    |
    153ms
  • 169.46.83.3

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    152ms
  • 169.46.83.4

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    2ms
    |
    154ms
  • 169.46.83.5

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    155ms
  • 169.46.83.12

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    148ms
  • 169.46.83.14

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    2ms
    |
    154ms
  • 169.46.84.114

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    153ms
  • 169.46.84.115

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    135ms
    |
    1ms
    |
    154ms
  • 169.46.84.116

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    154ms
  • 169.46.84.117

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    2ms
    |
    148ms
  • 169.46.84.118

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    132ms
    |
    1ms
    |
    172ms
  • 169.46.84.119

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    193ms
  • 169.46.84.120

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    151ms
  • 169.46.84.122

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    148ms
  • 169.46.84.125

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    142ms
  • 169.46.84.126

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    134ms
    |
    1ms
    |
    157ms
  • 169.47.209.227

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    84ms
  • 169.47.209.229

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    85ms
  • 169.47.209.231

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    135ms
    |
    1ms
    |
    91ms
  • 169.47.209.232

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    98% uptime

    134ms
    |
    1ms
    |
    84ms
  • 169.60.5.245

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    136ms
    |
    1ms
    |
    152ms
  • 169.60.32.246

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    135ms
    |
    2ms
    |
    153ms
  • 169.60.32.249

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    149ms
  • 169.60.32.252

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    145ms
  • 169.61.192.195

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    140ms
  • 169.61.192.196

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    148ms
  • 169.61.192.204

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    157ms
  • 169.61.192.208

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    99% uptime

    134ms
    |
    1ms
    |
    155ms
  • 169.61.192.212

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    132ms
    |
    1ms
    |
    156ms
  • 169.61.192.213

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    160ms
  • 169.61.192.215

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    154ms
  • 169.61.192.216

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    167ms
  • 169.61.192.220

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    150ms
  • 169.61.192.221

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    136ms
    |
    1ms
    |
    154ms
  • 169.61.192.222

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    137ms
    |
    1ms
    |
    167ms
  • 169.61.200.68

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    164ms
  • 169.61.200.69

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    157ms
  • 169.61.200.70

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    158ms
  • 169.61.200.71

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    98% uptime

    133ms
    |
    1ms
    |
    161ms
  • 169.61.200.74

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    136ms
    |
    1ms
    |
    158ms
  • 169.61.200.76

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    142ms
  • 169.61.236.130

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    151ms
  • 169.61.236.131

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    154ms
  • 169.61.236.132

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    154ms
  • 169.61.236.135

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    2ms
    |
    157ms
  • 169.61.236.137

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    147ms
  • 169.61.236.140

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    2ms
    |
    166ms
  • 169.61.236.142

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    183ms
  • 169.61.236.146

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    150ms
  • 169.61.236.153

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    157ms
  • 169.61.236.154

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    156ms
  • 169.62.143.7

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    153ms
  • 169.62.143.11

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    159ms
  • 169.62.143.17

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    158ms
  • 169.62.143.19

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    154ms
  • 169.62.143.24

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    136ms
    |
    1ms
    |
    180ms
  • 169.62.143.32

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    170ms
  • 169.62.143.41

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    154ms
  • 169.62.143.42

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    136ms
    |
    1ms
    |
    156ms
  • 169.62.143.47

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    158ms
  • 169.62.143.53

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    1ms
    |
    154ms
  • 169.62.143.56

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    164ms
  • 169.62.143.58

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    206ms
  • 169.62.187.194

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    135ms
    |
    2ms
    |
    136ms
  • 169.62.187.195

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    156ms
  • 169.62.187.197

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    137ms
    |
    1ms
    |
    157ms
  • 169.62.187.198

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    98% uptime

    134ms
    |
    2ms
    |
    211ms
  • 169.62.187.200

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    133ms
    |
    1ms
    |
    150ms
  • 169.62.187.202

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    136ms
    |
    2ms
    |
    142ms
  • 169.62.187.204

    IBM Cloud

    AS36351

    Dallas

    32.7831, -96.8067

    100% uptime

    134ms
    |
    1ms
    |
    155ms