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

  • 64.52.179.173

    Giggle Fiber

    AS26919

    Arcadia

    34.1397, -118.0353

    99% uptime

    158ms
    |
    3ms
    |
    207ms
  • 209.104.7.34

    Login, Inc.

    AS22772

    Arivaca

    31.5748, -111.3323

    100% uptime

    144ms
    |
    1ms
    |
    226ms
  • 130.44.144.57

    RCN

    AS6079

    Arlington

    42.4154, -71.1564

    99% uptime

    108ms
    |
    2ms
    |
    152ms
  • 146.115.69.15

    RCN

    AS6079

    Arlington

    42.4154, -71.1564

    100% uptime

    108ms
    |
    1ms
    |
    156ms
  • 199.219.243.7

    Verizon Business

    AS701

    Arlington

    39.3486, -76.6832

    100% uptime

    113ms
    |
    1ms
    |
    76ms
  • 209.190.237.21

    Atlantech Online, Inc.

    AS7784

    Arlington

    38.8810, -77.1043

    100% uptime

    104ms
    |
    3ms
    |
    116ms
  • 76.154.136.211

    Comcast Cable Communications, LLC

    AS7922

    Arvada

    39.8028, -105.0875

    100% uptime

    156ms
    |
    3ms
    |
    173ms
  • 5.161.17.92

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    4ms
    |
    135ms
  • 5.161.20.183

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    103ms
    |
    2ms
    |
    132ms
  • 5.161.23.103

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    132ms
  • 5.161.23.167

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    2ms
    |
    129ms
  • 5.161.46.146

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    5ms
    |
    134ms
  • 5.161.46.209

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    130ms
  • 5.161.47.113

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    2ms
    |
    43ms
  • 5.161.50.221

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    103ms
    |
    3ms
    |
    126ms
  • 5.161.54.199

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    100ms
    |
    4ms
    |
    130ms
  • 5.161.56.11

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    98% uptime

    103ms
    |
    2ms
    |
    131ms
  • 5.161.58.12

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    121ms
  • 5.161.62.236

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    2ms
    |
    134ms
  • 5.161.66.150

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    3ms
    |
    133ms
  • 5.161.69.93

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    2ms
    |
    131ms
  • 5.161.72.64

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    5ms
    |
    133ms
  • 5.161.77.87

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    127ms
  • 5.161.77.236

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    134ms
  • 5.161.81.83

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    98% uptime

    103ms
    |
    3ms
    |
    127ms
  • 5.161.81.124

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    80ms
  • 5.161.85.251

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    5ms
    |
    133ms
  • 5.161.90.166

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    3ms
    |
    134ms
  • 5.161.93.221

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    127ms
  • 5.161.110.184

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    116ms
  • 5.161.114.162

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    132ms
  • 5.161.115.165

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    2ms
    |
    111ms
  • 5.161.123.169

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    100ms
    |
    2ms
    |
    132ms
  • 5.161.124.36

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    103ms
    |
    3ms
    |
    131ms
  • 5.161.146.225

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    98% uptime

    103ms
    |
    3ms
    |
    132ms
  • 5.161.176.146

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    1ms
    |
    132ms
  • 5.161.180.168

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    127ms
  • 5.161.181.129

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    114ms
  • 5.161.183.222

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    98% uptime

    103ms
    |
    3ms
    |
    112ms
  • 5.161.187.223

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    127ms
  • 5.161.190.86

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    4ms
    |
    132ms
  • 5.161.190.141

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    4ms
    |
    127ms
  • 5.161.191.104

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    116ms
  • 5.161.200.133

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    3ms
    |
    134ms
  • 5.161.202.43

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    98% uptime

    103ms
    |
    3ms
    |
    132ms
  • 5.161.203.48

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    128ms
  • 5.161.204.207

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    136ms
  • 5.161.206.36

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    129ms
  • 5.161.206.248

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    4ms
    |
    133ms
  • 5.161.213.17

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    5ms
    |
    135ms
  • 5.161.214.4

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    100ms
    |
    3ms
    |
    84ms
  • 5.161.217.6

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    2ms
    |
    113ms
  • 5.161.218.196

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    132ms
  • 5.161.219.99

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    3ms
    |
    131ms
  • 5.161.219.227

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    100ms
    |
    5ms
    |
    134ms
  • 5.161.222.206

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    3ms
    |
    24ms
  • 5.161.226.107

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    2ms
    |
    135ms
  • 5.161.226.129

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    130ms
  • 5.161.227.99

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    126ms
  • 5.161.234.254

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    3ms
    |
    133ms
  • 5.161.237.79

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    100ms
    |
    3ms
    |
    132ms
  • 5.161.244.92

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    99% uptime

    103ms
    |
    2ms
    |
    129ms
  • 5.161.249.72

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    0ms
    |
    66ms
  • 5.161.250.167

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    94% uptime

    103ms
    |
    0ms
    |
    132ms
  • 5.161.251.17

    Hetzner Online GmbH

    AS213230

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    3ms
    |
    132ms
  • 38.91.47.117

    Cogent Communications, LLC

    AS174

    Ashburn

    39.0437, -77.4875

    99% uptime

    108ms
    |
    1ms
    |
    110ms
  • 50.201.16.30

    Comcast Cable Communications, LLC

    AS7922

    Ashburn

    39.0437, -77.4875

    100% uptime

    109ms
    |
    0ms
    |
    48ms
  • 52.117.69.100

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    19ms
  • 52.117.69.102

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    18ms
  • 52.117.69.105

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    21ms
  • 70.106.251.84

    Verizon Business

    AS701

    Ashburn

    39.0437, -77.4875

    94% uptime

    116ms
    |
    1ms
    |
    141ms
  • 70.106.253.236

    Verizon Business

    AS701

    Ashburn

    39.0437, -77.4875

    100% uptime

    107ms
    |
    1ms
    |
    151ms
  • 78.108.218.225

    SPARKED HOST LLC

    AS397032

    Ashburn

    39.0437, -77.4875

    99% uptime

    90ms
    |
    1ms
    |
    101ms
  • 104.225.9.117

    NetActuate, Inc

    AS36236

    Ashburn

    39.0437, -77.4875

    100% uptime

    90ms
    |
    1ms
    |
    101ms
  • 104.247.205.69

    QuickPacket, LLC

    AS46261

    Ashburn

    39.0437, -77.4875

    100% uptime

    110ms
    |
    1ms
    |
    129ms
  • 128.14.194.3

    Zenlayer Inc

    AS21859

    Ashburn

    39.0437, -77.4875

    99% uptime

    109ms
    |
    2ms
    |
    90ms
  • 128.14.194.6

    Zenlayer Inc

    AS21859

    Ashburn

    39.0437, -77.4875

    98% uptime

    103ms
    |
    0ms
    |
    96ms
  • 129.80.65.64

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    100% uptime

    111ms
    |
    0ms
    |
    138ms
  • 129.158.217.108

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    100% uptime

    111ms
    |
    1ms
    |
    121ms
  • 129.158.237.206

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    98% uptime

    109ms
    |
    1ms
    |
    138ms
  • 129.213.61.192

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    99% uptime

    110ms
    |
    0ms
    |
    33ms
  • 129.213.125.233

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    100% uptime

    111ms
    |
    0ms
    |
    138ms
  • 129.213.135.102

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    100% uptime

    104ms
    |
    0ms
    |
    46ms
  • 135.148.144.87

    OVH SAS

    AS16276

    Ashburn

    39.0437, -77.4875

    99% uptime

    91ms
    |
    0ms
    |
    123ms
  • 140.99.254.78

    GTHost

    AS63023

    Ashburn

    39.0437, -77.4875

    100% uptime

    88ms
    |
    1ms
    |
    250ms
  • 140.99.254.138

    GTHost

    AS63023

    Ashburn

    39.0437, -77.4875

    99% uptime

    88ms
    |
    1ms
    |
    36ms
  • 141.148.20.77

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    100% uptime

    103ms
    |
    1ms
    |
    136ms
  • 143.105.148.138

    Space Exploration Technologies Corporation

    AS14593

    Ashburn

    39.0437, -77.4875

    99% uptime

    123ms
    |
    5ms
    |
    82ms
  • 150.136.244.62

    Oracle Corporation

    AS31898

    Ashburn

    39.0437, -77.4875

    100% uptime

    111ms
    |
    0ms
    |
    82ms
  • 169.47.16.118

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    101ms
  • 169.47.146.40

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    99% uptime

    101ms
    |
    2ms
    |
    98ms
  • 169.55.79.93

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    72ms
  • 169.55.102.24

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    109ms
  • 169.55.114.216

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    99% uptime

    100ms
    |
    1ms
    |
    54ms
  • 169.60.78.38

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    1ms
    |
    170ms
  • 169.60.78.39

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    234ms
  • 169.60.78.41

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    0ms
    |
    177ms
  • 169.60.78.42

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    168ms
  • 169.60.78.43

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    100ms
    |
    1ms
    |
    175ms
  • 169.60.78.45

    IBM Cloud

    AS36351

    Ashburn

    39.0437, -77.4875

    100% uptime

    101ms
    |
    0ms
    |
    171ms