DNS Servers

United States of America 4315 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

  • 184.178.19.50

    Cox Communications Inc.

    AS22773

    Pensacola

    30.4213, -87.2169

    98% uptime

    134ms
    |
    1ms
    |
    210ms
  • 64.88.192.20

    SMARTCOM TELEPHONE, LLC

    AS14860

    Perezville

    26.2245, -98.4006

    98% uptime

    134ms
    |
    10ms
    |
    198ms
  • 64.246.230.199

    Ontario Telephone Company Inc

    AS395685

    Phelps

    42.9576, -77.0575

    98% uptime

    99ms
    |
    1ms
    |
    202ms
  • 50.174.222.177

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    100% uptime

    102ms
    |
    1ms
    |
    156ms
  • 50.239.158.202

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    100% uptime

    136ms
    |
    1ms
    |
    254ms
  • 66.212.4.154

    NetCarrier, Inc.

    AS10823

    Philadelphia

    39.9524, -75.1636

    98% uptime

    106ms
    |
    1ms
    |
    129ms
  • 68.80.139.190

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    98% uptime

    111ms
    |
    1ms
    |
    191ms
  • 68.80.232.207

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    99% uptime

    113ms
    |
    2ms
    |
    210ms
  • 71.230.26.159

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    96% uptime

    111ms
    |
    1ms
    |
    199ms
  • 73.141.253.33

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    98% uptime

    111ms
    |
    2ms
    |
    129ms
  • 73.188.33.234

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    96% uptime

    116ms
    |
    2ms
    |
    262ms
  • 75.151.166.181

    Comcast Cable Communications, LLC

    AS7922

    Philadelphia

    39.9524, -75.1636

    96% uptime

    112ms
    |
    5ms
    |
    76ms
  • 131.106.17.162

    RCN

    AS6079

    Philadelphia

    39.9524, -75.1636

    96% uptime

    103ms
    |
    8ms
    |
    164ms
  • 152.179.84.54

    Verizon Business

    AS701

    Philadelphia

    39.9524, -75.1636

    100% uptime

    106ms
    |
    2ms
    |
    110ms
  • 167.20.186.100

    T-Mobile USA, Inc.

    AS21928

    Philadelphia

    39.9524, -75.1636

    100% uptime

    224ms
    |
    77ms
    |
    248ms
  • 199.172.16.35

    Verizon Business

    AS701

    Philadelphia

    39.9524, -75.1636

    100% uptime

    105ms
    |
    1ms
    |
    117ms
  • 204.89.160.43

    Cinch Software, LLC

    AS394815

    Philadelphia

    39.9524, -75.1636

    100% uptime

    99ms
    |
    1ms
    |
    106ms
  • 204.89.160.44

    Cinch Software, LLC

    AS394815

    Philadelphia

    39.9524, -75.1636

    99% uptime

    98ms
    |
    1ms
    |
    106ms
  • 204.89.160.68

    Cinch Software, LLC

    AS394815

    Philadelphia

    39.9524, -75.1636

    98% uptime

    97ms
    |
    1ms
    |
    113ms
  • 204.89.160.100

    Cinch Software, LLC

    AS394815

    Philadelphia

    39.9524, -75.1636

    100% uptime

    97ms
    |
    1ms
    |
    110ms
  • 208.58.108.40

    RCN

    AS6079

    Philadelphia

    39.9524, -75.1636

    99% uptime

    110ms
    |
    3ms
    |
    158ms
  • 208.220.3.130

    Verizon Business

    AS701

    Philadelphia

    39.9524, -75.1636

    100% uptime

    109ms
    |
    0ms
    |
    176ms
  • 216.164.196.5

    RCN

    AS6079

    Philadelphia

    39.9524, -75.1636

    99% uptime

    102ms
    |
    2ms
    |
    48ms
  • 209.173.20.138

    PenTeleData Inc.

    AS3737

    Phillipsburg

    40.6937, -75.1902

    98% uptime

    103ms
    |
    3ms
    |
    154ms
  • 68.180.19.196

    PAVLOV MEDIA INC

    AS23473

    Philo

    40.0070, -88.1581

    100% uptime

    106ms
    |
    5ms
    |
    130ms
  • 199.58.99.33

    Alyrica Networks Inc.

    AS25961

    Philomath

    44.5401, -123.3676

    100% uptime

    147ms
    |
    1ms
    |
    224ms
  • 4.36.14.42

    Level 3 Parent, LLC

    AS3356

    Phoenix

    33.4484, -112.0740

    98% uptime

    150ms
    |
    1ms
    |
    127ms
  • 23.227.217.114

    Resound Networks, LLC

    AS395301

    Phoenix

    33.6299, -112.1316

    100% uptime

    157ms
    |
    2ms
    |
    181ms
  • 24.248.184.125

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    161ms
    |
    8ms
    |
    176ms
  • 24.250.114.25

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    168ms
    |
    10ms
    |
    123ms
  • 63.151.55.28

    CenturyLink Communications, LLC

    AS209

    Phoenix

    33.4484, -112.0740

    98% uptime

    155ms
    |
    2ms
    |
    202ms
  • 64.125.197.98

    Zayo Bandwidth

    AS6461

    Phoenix

    33.4484, -112.0740

    100% uptime

    140ms
    |
    3ms
    |
    142ms
  • 65.124.58.194

    CenturyLink Communications, LLC

    AS209

    Phoenix

    33.4484, -112.0740

    99% uptime

    155ms
    |
    1ms
    |
    146ms
  • 65.132.57.140

    CenturyLink Communications, LLC

    AS209

    Phoenix

    33.4484, -112.0740

    99% uptime

    153ms
    |
    2ms
    |
    51ms
  • 65.141.73.1

    CenturyLink Communications, LLC

    AS209

    Phoenix

    33.4484, -112.0740

    100% uptime

    152ms
    |
    2ms
    |
    206ms
  • 66.29.138.73

    Namecheap, Inc.

    AS22612

    Phoenix

    33.4484, -112.0740

    99% uptime

    160ms
    |
    6ms
    |
    213ms
  • 66.29.138.98

    Namecheap, Inc.

    AS22612

    Phoenix

    33.4484, -112.0740

    96% uptime

    160ms
    |
    9ms
    |
    220ms
  • 67.223.119.181

    Namecheap, Inc.

    AS22612

    Phoenix

    33.4484, -112.0740

    100% uptime

    160ms
    |
    7ms
    |
    96ms
  • 67.223.119.186

    Namecheap, Inc.

    AS22612

    Phoenix

    33.4484, -112.0740

    99% uptime

    161ms
    |
    6ms
    |
    94ms
  • 68.10.58.37

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    171ms
    |
    5ms
    |
    280ms
  • 68.14.228.183

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    96% uptime

    172ms
    |
    4ms
    |
    106ms
  • 68.178.204.88

    GoDaddy.com, LLC

    AS398101

    Phoenix

    33.4484, -112.0740

    98% uptime

    160ms
    |
    5ms
    |
    234ms
  • 70.176.74.137

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    162ms
    |
    4ms
    |
    86ms
  • 70.176.74.141

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    162ms
    |
    7ms
    |
    78ms
  • 70.176.74.145

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    162ms
    |
    3ms
    |
    80ms
  • 70.176.74.169

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    162ms
    |
    8ms
    |
    81ms
  • 70.176.74.246

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    162ms
    |
    5ms
    |
    88ms
  • 70.180.24.5

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    159ms
    |
    5ms
    |
    95ms
  • 70.180.24.94

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    160ms
    |
    10ms
    |
    87ms
  • 70.180.24.101

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    162ms
    |
    10ms
    |
    76ms
  • 70.186.132.114

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    170ms
    |
    4ms
    |
    215ms
  • 72.167.36.185

    GoDaddy.com, LLC

    AS26496

    Phoenix

    33.4484, -112.0740

    100% uptime

    157ms
    |
    3ms
    |
    241ms
  • 72.167.55.139

    GoDaddy.com, LLC

    AS26496

    Phoenix

    33.4484, -112.0740

    96% uptime

    161ms
    |
    4ms
    |
    228ms
  • 72.194.252.251

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    171ms
    |
    8ms
    |
    282ms
  • 98.172.66.120

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    167ms
    |
    6ms
    |
    248ms
  • 98.175.212.99

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    162ms
    |
    6ms
    |
    146ms
  • 98.175.212.100

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    158ms
    |
    3ms
    |
    142ms
  • 98.181.1.13

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    165ms
    |
    4ms
    |
    52ms
  • 104.161.34.44

    Input Output Flood LLC

    AS53755

    Phoenix

    33.4484, -112.0740

    99% uptime

    134ms
    |
    11ms
    |
    65ms
  • 104.161.34.46

    Input Output Flood LLC

    AS53755

    Phoenix

    33.4484, -112.0740

    98% uptime

    134ms
    |
    13ms
    |
    50ms
  • 107.152.45.185

    tzulo, inc.

    AS11878

    Phoenix

    33.4484, -112.0740

    99% uptime

    139ms
    |
    4ms
    |
    184ms
  • 129.146.24.234

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    98% uptime

    156ms
    |
    2ms
    |
    214ms
  • 129.146.34.72

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    98% uptime

    154ms
    |
    4ms
    |
    257ms
  • 129.146.44.82

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    98% uptime

    158ms
    |
    7ms
    |
    209ms
  • 129.146.66.231

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    96% uptime

    159ms
    |
    5ms
    |
    84ms
  • 129.146.84.248

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    100% uptime

    157ms
    |
    3ms
    |
    247ms
  • 129.146.123.163

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    100% uptime

    160ms
    |
    8ms
    |
    212ms
  • 129.146.144.158

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    96% uptime

    160ms
    |
    3ms
    |
    211ms
  • 129.153.213.54

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    100% uptime

    154ms
    |
    4ms
    |
    234ms
  • 131.153.32.21

    SECURED SERVERS LLC

    AS20454

    Phoenix

    33.4484, -112.0740

    96% uptime

    147ms
    |
    1ms
    |
    98ms
  • 141.148.147.52

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    100% uptime

    157ms
    |
    8ms
    |
    229ms
  • 144.24.34.19

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    100% uptime

    158ms
    |
    3ms
    |
    242ms
  • 144.24.55.10

    Oracle Corporation

    AS31898

    Phoenix

    33.4484, -112.0740

    100% uptime

    161ms
    |
    4ms
    |
    322ms
  • 156.233.2.67

    GTHost

    AS63023

    Phoenix

    33.4484, -112.0740

    100% uptime

    157ms
    |
    2ms
    |
    148ms
  • 160.153.184.45

    GoDaddy.com, LLC

    AS398101

    Phoenix

    33.4484, -112.0740

    100% uptime

    158ms
    |
    3ms
    |
    263ms
  • 174.77.68.49

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    162ms
    |
    4ms
    |
    212ms
  • 184.179.131.229

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    100% uptime

    162ms
    |
    10ms
    |
    82ms
  • 184.180.187.9

    Cox Communications Inc.

    AS22773

    Phoenix

    33.4484, -112.0740

    98% uptime

    162ms
    |
    6ms
    |
    197ms
  • 192.34.66.187

    SECURED SERVERS LLC

    AS20454

    Phoenix

    33.4484, -112.0740

    98% uptime

    147ms
    |
    1ms
    |
    173ms
  • 199.85.209.131

    Namecheap, Inc.

    AS22612

    Phoenix

    33.4484, -112.0740

    96% uptime

    151ms
    |
    6ms
    |
    204ms
  • 199.85.209.155

    Namecheap, Inc.

    AS22612

    Phoenix

    33.4484, -112.0740

    100% uptime

    151ms
    |
    5ms
    |
    198ms
  • 208.109.244.144

    GoDaddy.com, LLC

    AS26496

    Phoenix

    33.4484, -112.0740

    98% uptime

    160ms
    |
    5ms
    |
    231ms
  • 209.181.17.196

    CenturyLink Communications, LLC

    AS209

    Phoenix

    33.4484, -112.0740

    100% uptime

    154ms
    |
    2ms
    |
    172ms
  • 23.245.251.161

    Breezeline

    AS11776

    Pickerington

    39.8842, -82.7535

    100% uptime

    132ms
    |
    3ms
    |
    207ms
  • 64.68.236.50

    Cherryland Services Inc

    AS13904

    Picture Rocks

    32.3459, -111.2462

    96% uptime

    166ms
    |
    22ms
    |
    86ms
  • 162.220.144.24

    Cherryland Services Inc

    AS13904

    Picture Rocks

    32.3459, -111.2462

    99% uptime

    166ms
    |
    11ms
    |
    172ms
  • 162.220.144.228

    Cherryland Services Inc

    AS13904

    Picture Rocks

    32.3459, -111.2462

    100% uptime

    170ms
    |
    5ms
    |
    180ms
  • 162.220.145.163

    Cherryland Services Inc

    AS13904

    Picture Rocks

    32.3459, -111.2462

    100% uptime

    167ms
    |
    23ms
    |
    196ms
  • 23.164.17.166

    Wifi Squared

    AS397911

    Pigeon Forge

    35.7884, -83.5543

    96% uptime

    146ms
    |
    5ms
    |
    392ms
  • 71.175.206.203

    Verizon Business

    AS701

    Pike Creek Valley

    39.7362, -75.6983

    98% uptime

    104ms
    |
    1ms
    |
    151ms
  • 71.121.173.34

    Verizon Business

    AS701

    Pikesville

    39.3743, -76.7225

    98% uptime

    105ms
    |
    0ms
    |
    117ms
  • 71.121.173.36

    Verizon Business

    AS701

    Pikesville

    39.3743, -76.7225

    100% uptime

    106ms
    |
    1ms
    |
    118ms
  • 71.121.173.39

    Verizon Business

    AS701

    Pikesville

    39.3743, -76.7225

    99% uptime

    104ms
    |
    1ms
    |
    121ms
  • 71.121.173.46

    Verizon Business

    AS701

    Pikesville

    39.3743, -76.7225

    96% uptime

    100ms
    |
    1ms
    |
    123ms
  • 69.176.0.135

    Mikrotec Internet Services

    AS3801

    Pikeville

    37.4793, -82.5188

    99% uptime

    131ms
    |
    3ms
    |
    37ms
  • 74.214.183.234

    Mikrotec Internet Services

    AS3801

    Pikeville

    37.4793, -82.5188

    100% uptime

    132ms
    |
    3ms
    |
    233ms
  • 8.193.12.33

    Cherryland Services Inc

    AS13904

    Pima

    32.8966, -109.8284

    99% uptime

    160ms
    |
    14ms
    |
    187ms
  • 199.119.96.156

    Troy Cablevision, Inc.

    AS13825

    Pinckard

    31.3116, -85.5530

    100% uptime

    122ms
    |
    3ms
    |
    162ms
  • 66.57.236.53

    Charter Communications Inc

    AS11426

    Pinehurst

    35.1954, -79.4695

    98% uptime

    114ms
    |
    5ms
    |
    160ms
  • 208.81.158.203

    WIRED OR WIRELESS INC.

    AS18913

    Pinehurst

    47.5388, -116.2374

    100% uptime

    154ms
    |
    7ms
    |
    267ms