DNS Servers

United States of America 4611 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

  • 169.61.71.7

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    238ms
  • 169.61.71.10

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    170ms
  • 169.61.71.20

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    192ms
  • 169.61.71.23

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    179ms
  • 169.61.71.25

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    0ms
    |
    184ms
  • 169.61.71.26

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    180ms
  • 169.61.71.27

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    172ms
  • 169.61.84.211

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    203ms
  • 169.61.84.217

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    176ms
  • 169.61.84.220

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    163ms
  • 169.63.75.182

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    98% uptime

    100ms
    |
    1ms
    |
    114ms
  • 169.63.75.187

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    74ms
  • 169.63.138.7

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    182ms
  • 169.63.138.10

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    184ms
  • 169.63.138.13

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    244ms
  • 169.63.138.16

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    178ms
  • 169.63.138.23

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    171ms
  • 169.63.138.26

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    176ms
  • 169.63.173.243

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    2ms
    |
    39ms
  • 169.63.173.249

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    39ms
  • 170.106.0.38

    Tencent Building, Kejizhongyi Avenue

    AS132203

    Ashburn

    39.0437, -77.4875

    94% uptime

    97ms
    |
    1ms
    |
    100ms
  • 172.233.235.135

    Akamai Connected Cloud

    AS63949

    Ashburn

    39.0437, -77.4875

    100% uptime

    102ms
    |
    1ms
    |
    84ms
  • 172.245.232.27

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    1ms
    |
    42ms
  • 172.245.232.64

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    100% uptime

    108ms
    |
    2ms
    |
    118ms
  • 172.245.232.197

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    98% uptime

    108ms
    |
    1ms
    |
    36ms
  • 172.245.232.199

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    100% uptime

    104ms
    |
    1ms
    |
    44ms
  • 172.245.232.201

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    1ms
    |
    40ms
  • 172.245.232.207

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    99% uptime

    108ms
    |
    1ms
    |
    48ms
  • 172.245.232.218

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    2ms
    |
    40ms
  • 172.245.232.235

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    99% uptime

    108ms
    |
    1ms
    |
    40ms
  • 172.245.232.237

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    6ms
    |
    44ms
  • 172.245.232.242

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    99% uptime

    108ms
    |
    1ms
    |
    45ms
  • 172.245.232.247

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    99% uptime

    108ms
    |
    3ms
    |
    43ms
  • 172.245.232.253

    BrainStorm Network, Inc

    AS136258

    Ashburn

    39.0437, -77.4875

    98% uptime

    103ms
    |
    1ms
    |
    43ms
  • 173.167.34.170

    Comcast Cable Communications, LLC

    AS7922

    Ashburn

    39.0437, -77.4875

    88% uptime

    122ms
    |
    3ms
    |
    130ms
  • 178.156.129.72

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    102ms
    |
    1ms
    |
    128ms
  • 178.156.129.92

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    130ms
  • 178.156.140.16

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    5ms
    |
    129ms
  • 178.156.149.61

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    2ms
    |
    131ms
  • 178.156.157.187

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    128ms
  • 178.156.162.118

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    130ms
  • 178.156.170.50

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    2ms
    |
    133ms
  • 178.156.174.248

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    2ms
    |
    132ms
  • 178.156.186.93

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    4ms
    |
    129ms
  • 178.156.191.183

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    4ms
    |
    114ms
  • 178.156.198.170

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    99ms
    |
    1ms
    |
    130ms
  • 178.156.204.179

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    4ms
    |
    129ms
  • 178.156.242.193

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    2ms
    |
    130ms
  • 178.156.242.243

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    115ms
  • 185.204.12.12

    NELLICUS, LLC

    AS61961

    Ashburn

    39.0437, -77.4875

    100% uptime

    92ms
    |
    0ms
    |
    72ms
  • 193.122.192.31

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    166ms
  • 204.152.193.221

    HostPapa

    AS36352

    Ashburn

    39.0437, -77.4875

    100% uptime

    90ms
    |
    1ms
    |
    116ms
  • 207.174.105.197

    GoCodeIT Inc

    AS835

    Ashburn

    39.0437, -77.4875

    100% uptime

    95ms
    |
    1ms
    |
    132ms
  • 216.45.58.143

    HostPapa

    AS36352

    Ashburn

    39.0437, -77.4875

    99% uptime

    89ms
    |
    1ms
    |
    127ms
  • 216.144.228.121

    HostPapa

    AS36352

    Ashburn

    39.0437, -77.4875

    100% uptime

    90ms
    |
    1ms
    |
    496ms
  • 174.108.185.43

    Charter Communications Inc

    AS11426

    Asheboro

    35.7079, -79.8136

    99% uptime

    133ms
    |
    10ms
    |
    146ms
  • 216.59.45.69

    Immedion, LLC

    AS15085

    Asheville

    35.6009, -82.5540

    100% uptime

    119ms
    |
    0ms
    |
    183ms
  • 66.215.53.249

    Charter Communications LLC

    AS20115

    Atascadero

    35.4894, -120.6707

    100% uptime

    174ms
    |
    1ms
    |
    252ms
  • 38.178.232.85

    Vyve Broadband

    AS35986

    Atchison

    39.5630, -95.1216

    94% uptime

    139ms
    |
    2ms
    |
    237ms
  • 12.189.103.90

    AT&T Enterprises, LLC

    AS7018

    Athens

    33.9609, -83.3779

    100% uptime

    130ms
    |
    0ms
    |
    102ms
  • 47.46.160.146

    Charter Communications LLC

    AS20115

    Athens

    33.9609, -83.3779

    99% uptime

    123ms
    |
    5ms
    |
    98ms
  • 66.213.78.162

    Ohio Public Library Information Network (OPLIN)

    AS26923

    Athens

    39.3292, -82.1013

    98% uptime

    101ms
    |
    6ms
    |
    178ms
  • 66.213.78.194

    Ohio Public Library Information Network (OPLIN)

    AS26923

    Athens

    39.3292, -82.1013

    98% uptime

    102ms
    |
    7ms
    |
    100ms
  • 4.1.37.10

    Level 3 Parent, LLC

    AS3356

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    1ms
    |
    131ms
  • 4.35.3.250

    Level 3 Parent, LLC

    AS3356

    Atlanta

    33.7490, -84.3880

    100% uptime

    114ms
    |
    9ms
    |
    19ms
  • 12.0.52.74

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    100% uptime

    123ms
    |
    4ms
    |
    99ms
  • 12.13.135.26

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    94% uptime

    138ms
    |
    1ms
    |
    94ms
  • 12.79.10.126

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    98% uptime

    130ms
    |
    5ms
    |
    312ms
  • 12.147.241.180

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    100% uptime

    126ms
    |
    13ms
    |
    145ms
  • 12.147.241.181

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    98% uptime

    120ms
    |
    2ms
    |
    138ms
  • 12.178.40.18

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    100% uptime

    131ms
    |
    1ms
    |
    68ms
  • 12.222.218.147

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    8ms
    |
    36ms
  • 24.98.118.167

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    94% uptime

    137ms
    |
    2ms
    |
    247ms
  • 32.141.0.226

    AT&T Enterprises, LLC

    AS7018

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    1ms
    |
    51ms
  • 38.46.50.90

    Parker FiberNet, LLC

    AS40111

    Atlanta

    33.7490, -84.3880

    100% uptime

    113ms
    |
    0ms
    |
    68ms
  • 38.142.130.69

    Cogent Communications, LLC

    AS174

    Atlanta

    33.7490, -84.3880

    98% uptime

    129ms
    |
    2ms
    |
    58ms
  • 45.32.216.122

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    122ms
    |
    0ms
    |
    36ms
  • 45.32.220.189

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    99% uptime

    121ms
    |
    1ms
    |
    41ms
  • 45.32.223.207

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    0ms
    |
    44ms
  • 45.33.97.95

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    99% uptime

    122ms
    |
    1ms
    |
    142ms
  • 45.33.102.210

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    100% uptime

    123ms
    |
    1ms
    |
    30ms
  • 45.61.51.222

    Kamatera, Inc.

    AS36007

    Atlanta

    33.7525, -84.3888

    99% uptime

    116ms
    |
    1ms
    |
    75ms
  • 45.76.62.53

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    117ms
    |
    1ms
    |
    44ms
  • 45.76.63.33

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    94% uptime

    122ms
    |
    0ms
    |
    41ms
  • 45.76.248.117

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    94% uptime

    122ms
    |
    1ms
    |
    55ms
  • 45.76.250.76

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    121ms
    |
    1ms
    |
    40ms
  • 45.76.251.41

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7865, -84.4454

    98% uptime

    121ms
    |
    1ms
    |
    38ms
  • 45.76.255.243

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    94% uptime

    117ms
    |
    0ms
    |
    262ms
  • 50.116.44.240

    Akamai Connected Cloud

    AS63949

    Atlanta

    33.7490, -84.3880

    99% uptime

    119ms
    |
    1ms
    |
    145ms
  • 50.146.74.43

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    100% uptime

    132ms
    |
    2ms
    |
    63ms
  • 50.146.99.162

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    100% uptime

    131ms
    |
    1ms
    |
    92ms
  • 50.184.12.34

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    98% uptime

    130ms
    |
    1ms
    |
    46ms
  • 50.204.70.166

    Comcast Cable Communications, LLC

    AS7922

    Atlanta

    33.7490, -84.3880

    100% uptime

    126ms
    |
    6ms
    |
    66ms
  • 63.73.11.3

    Digital Agent

    AS16791

    Atlanta

    33.7490, -84.3880

    98% uptime

    123ms
    |
    2ms
    |
    133ms
  • 63.73.11.5

    Digital Agent

    AS16791

    Atlanta

    33.7490, -84.3880

    100% uptime

    119ms
    |
    3ms
    |
    142ms
  • 64.197.193.7

    Windstream Communications LLC

    AS7029

    Atlanta

    33.7490, -84.3880

    100% uptime

    120ms
    |
    3ms
    |
    110ms
  • 64.238.200.174

    BroadbandONE, LLC

    AS7381

    Atlanta

    33.7490, -84.3880

    100% uptime

    110ms
    |
    0ms
    |
    74ms
  • 65.196.163.67

    Verizon Business

    AS701

    Atlanta

    33.7490, -84.3880

    100% uptime

    131ms
    |
    1ms
    |
    54ms
  • 66.0.175.146

    Windstream Communications LLC

    AS7029

    Atlanta

    33.7490, -84.3880

    99% uptime

    99ms
    |
    1ms
    |
    92ms
  • 66.42.80.53

    The Constant Company, LLC

    AS20473

    Atlanta

    33.7490, -84.3880

    100% uptime

    118ms
    |
    0ms
    |
    36ms