DNS Servers

United States of America 4604 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

  • 69.50.248.96

    Cablelynx

    AS53508

    Rockwell

    34.4643, -93.1338

    98% uptime

    125ms
    |
    3ms
    |
    179ms
  • 184.170.76.110

    Shenandoah Cable Television LLC

    AS4922

    Rocky Mount

    36.9976, -79.8920

    100% uptime

    139ms
    |
    2ms
    |
    120ms
  • 64.251.148.189

    Fidelity Communication International Inc.

    AS11976

    Rolla

    37.9514, -91.7713

    88% uptime

    127ms
    |
    2ms
    |
    53ms
  • 216.229.79.15

    Fidelity Communication International Inc.

    AS11976

    Rolla

    37.9514, -91.7713

    100% uptime

    126ms
    |
    2ms
    |
    56ms
  • 209.122.32.215

    RCN

    AS6079

    Rolling Meadows

    42.0842, -88.0131

    98% uptime

    127ms
    |
    6ms
    |
    175ms
  • 144.121.181.66

    Crown Castle Fiber LLC

    AS46887

    Romulus

    42.2223, -83.3966

    88% uptime

    107ms
    |
    1ms
    |
    139ms
  • 166.82.50.174

    Windstream Communications LLC

    AS7029

    Rosebud

    31.0730, -96.9786

    94% uptime

    143ms
    |
    1ms
    |
    242ms
  • 66.191.137.26

    Charter Communications LLC

    AS20115

    Rosemount

    44.7394, -93.1258

    98% uptime

    147ms
    |
    3ms
    |
    212ms
  • 23.252.82.108

    Zeta Broadband, Inc.

    AS62814

    Roseville

    38.7521, -121.2880

    100% uptime

    157ms
    |
    2ms
    |
    225ms
  • 216.21.176.50

    Geetingsville Telephone Co., Inc.

    AS31920

    Rossville

    40.4170, -86.5947

    99% uptime

    117ms
    |
    1ms
    |
    160ms
  • 172.103.107.189

    TELSTAR1 INTERNET SERVICES

    AS32624

    Rotan

    32.8520, -100.4657

    100% uptime

    163ms
    |
    4ms
    |
    315ms
  • 216.228.41.165

    Mid-Rivers Telephone Cooperative

    AS11961

    Roundup

    46.4452, -108.5418

    100% uptime

    157ms
    |
    3ms
    |
    345ms
  • 47.189.37.187

    Frontier Communications of America, Inc.

    AS5650

    Rowlett

    32.9029, -96.5639

    100% uptime

    132ms
    |
    1ms
    |
    142ms
  • 66.209.103.110

    One Ring Networks, Inc.

    AS35985

    Rubidoux

    33.9961, -117.4056

    100% uptime

    150ms
    |
    2ms
    |
    50ms
  • 192.208.169.192

    Rural Telephone Service Co, Inc.

    AS14155

    Russell

    38.8953, -98.8610

    100% uptime

    144ms
    |
    0ms
    |
    199ms
  • 24.56.122.138

    Shenandoah Cable Television LLC

    AS4922

    Rustburg

    37.2768, -79.1008

    100% uptime

    139ms
    |
    2ms
    |
    129ms
  • 192.152.192.134

    City of Ruston

    AS18889

    Ruston

    32.5232, -92.6379

    94% uptime

    151ms
    |
    5ms
    |
    189ms
  • 24.10.77.13

    Comcast Cable Communications, LLC

    AS7922

    Sacramento

    38.5816, -121.4944

    100% uptime

    180ms
    |
    3ms
    |
    300ms
  • 32.141.25.26

    AT&T Enterprises, LLC

    AS7018

    Sacramento

    38.5816, -121.4944

    99% uptime

    167ms
    |
    1ms
    |
    115ms
  • 98.36.20.17

    Comcast Cable Communications, LLC

    AS7922

    Sacramento

    38.5816, -121.4944

    100% uptime

    172ms
    |
    4ms
    |
    331ms
  • 98.242.14.131

    Comcast Cable Communications, LLC

    AS7922

    Sacramento

    38.5816, -121.4944

    100% uptime

    170ms
    |
    1ms
    |
    318ms
  • 67.128.194.133

    Orbitel Communications, LLC

    AS17385

    Saddlebrooke

    32.5395, -110.9006

    100% uptime

    155ms
    |
    1ms
    |
    160ms
  • 24.173.149.58

    Charter Communications, Inc

    AS33363

    Safety Harbor

    27.9908, -82.6932

    99% uptime

    136ms
    |
    3ms
    |
    192ms
  • 160.3.100.215

    CABLE ONE, INC.

    AS11492

    Safford

    32.8340, -109.7076

    99% uptime

    163ms
    |
    2ms
    |
    61ms
  • 162.252.200.12

    Cherryland Services Inc

    AS13904

    Sahuarita

    31.9576, -110.9557

    94% uptime

    166ms
    |
    19ms
    |
    253ms
  • 63.233.142.69

    CenturyLink Communications, LLC

    AS209

    Saint Cloud

    45.5608, -94.1625

    100% uptime

    133ms
    |
    9ms
    |
    104ms
  • 63.233.142.85

    CenturyLink Communications, LLC

    AS209

    Saint Cloud

    45.5608, -94.1625

    100% uptime

    131ms
    |
    2ms
    |
    120ms
  • 75.100.128.4

    TDS TELECOM

    AS4181

    Saint George

    37.1041, -113.5841

    100% uptime

    174ms
    |
    2ms
    |
    130ms
  • 98.228.59.132

    Comcast Cable Communications, LLC

    AS7922

    Saint Joseph

    40.1117, -88.0417

    100% uptime

    131ms
    |
    13ms
    |
    227ms
  • 72.45.49.216

    Breezeline

    AS11776

    Saint Michaels

    38.7851, -76.2244

    100% uptime

    105ms
    |
    1ms
    |
    124ms
  • 71.195.45.164

    Comcast Cable Communications, LLC

    AS7922

    Saint Paul

    44.9608, -93.1216

    99% uptime

    136ms
    |
    12ms
    |
    254ms
  • 75.168.246.219

    CenturyLink Communications, LLC

    AS209

    Saint Paul

    44.9444, -93.0933

    98% uptime

    130ms
    |
    2ms
    |
    276ms
  • 134.56.91.105

    Hotwire Communications

    AS23089

    Salisbury

    35.6710, -80.4742

    98% uptime

    124ms
    |
    3ms
    |
    261ms
  • 23.142.200.126

    POLONETWORK LIMITED

    AS151338

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    131ms
    |
    15ms
    |
    75ms
  • 23.142.200.151

    POLONETWORK LIMITED

    AS151338

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    131ms
    |
    5ms
    |
    72ms
  • 50.115.46.106

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    139ms
    |
    4ms
    |
    117ms
  • 50.115.46.107

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    132ms
    |
    1ms
    |
    112ms
  • 50.115.46.108

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    140ms
    |
    3ms
    |
    102ms
  • 50.115.46.109

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    134ms
    |
    3ms
    |
    114ms
  • 50.115.46.110

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    139ms
    |
    4ms
    |
    106ms
  • 50.222.146.129

    Comcast Cable Communications, LLC

    AS33660

    Salt Lake City

    40.7608, -111.8911

    94% uptime

    157ms
    |
    3ms
    |
    123ms
  • 65.153.43.242

    CenturyLink Communications, LLC

    AS209

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    149ms
    |
    0ms
    |
    303ms
  • 65.153.43.244

    CenturyLink Communications, LLC

    AS209

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    151ms
    |
    1ms
    |
    295ms
  • 67.161.240.246

    Comcast Cable Communications, LLC

    AS7922

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    175ms
    |
    3ms
    |
    286ms
  • 67.166.123.141

    Comcast Cable Communications, LLC

    AS7922

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    161ms
    |
    9ms
    |
    53ms
  • 67.214.242.246

    FirstDigital Communications, LLC

    AS13415

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    153ms
    |
    1ms
    |
    221ms
  • 73.228.125.234

    Comcast Cable Communications, LLC

    AS7922

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    175ms
    |
    3ms
    |
    96ms
  • 76.27.105.167

    Comcast Cable Communications, LLC

    AS7922

    Salt Lake City

    40.7608, -111.8911

    94% uptime

    176ms
    |
    4ms
    |
    312ms
  • 79.99.78.5

    ByteVirt LLC

    AS212336

    Salt Lake City

    40.7608, -111.8911

    94% uptime

    131ms
    |
    2ms
    |
    51ms
  • 104.143.66.228

    KSB Industries, LLC

    AS400690

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    129ms
    |
    1ms
    |
    182ms
  • 107.3.98.234

    Comcast Cable Communications, LLC

    AS7922

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    169ms
    |
    8ms
    |
    102ms
  • 108.171.206.186

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    137ms
    |
    2ms
    |
    104ms
  • 108.171.206.187

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    128ms
    |
    2ms
    |
    110ms
  • 108.171.206.189

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    98% uptime

    128ms
    |
    8ms
    |
    110ms
  • 108.171.206.190

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    137ms
    |
    3ms
    |
    102ms
  • 108.171.206.194

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    129ms
    |
    10ms
    |
    109ms
  • 108.171.206.195

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    135ms
    |
    2ms
    |
    98ms
  • 108.171.206.197

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    137ms
    |
    2ms
    |
    105ms
  • 108.171.206.198

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    98% uptime

    128ms
    |
    4ms
    |
    118ms
  • 136.36.111.95

    Google Fiber Inc.

    AS16591

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    144ms
    |
    0ms
    |
    36ms
  • 136.40.64.114

    Google Fiber Inc.

    AS16591

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    150ms
    |
    2ms
    |
    140ms
  • 136.59.149.54

    Google Fiber Inc.

    AS16591

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    150ms
    |
    1ms
    |
    125ms
  • 136.60.146.92

    Google Fiber Inc.

    AS16591

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    150ms
    |
    0ms
    |
    142ms
  • 150.241.207.2

    POLONETWORK LIMITED

    AS151338

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    131ms
    |
    5ms
    |
    39ms
  • 150.241.207.40

    POLONETWORK LIMITED

    AS151338

    Salt Lake City

    40.7608, -111.8911

    94% uptime

    130ms
    |
    2ms
    |
    204ms
  • 172.245.235.74

    BrainStorm Network, Inc

    AS136258

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    141ms
    |
    3ms
    |
    92ms
  • 174.52.105.151

    Comcast Cable Communications, LLC

    AS7922

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    171ms
    |
    5ms
    |
    102ms
  • 192.69.210.43

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    128ms
    |
    12ms
    |
    109ms
  • 192.69.210.45

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    128ms
    |
    2ms
    |
    113ms
  • 192.69.221.234

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    128ms
    |
    2ms
    |
    106ms
  • 192.69.221.235

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    137ms
    |
    3ms
    |
    102ms
  • 192.69.221.236

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    127ms
    |
    2ms
    |
    121ms
  • 192.69.221.237

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    135ms
    |
    4ms
    |
    118ms
  • 192.69.221.238

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    128ms
    |
    3ms
    |
    105ms
  • 216.18.206.118

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    128ms
    |
    2ms
    |
    111ms
  • 216.18.219.18

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    140ms
    |
    10ms
    |
    104ms
  • 216.18.219.19

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    132ms
    |
    11ms
    |
    110ms
  • 216.18.219.20

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    141ms
    |
    2ms
    |
    107ms
  • 216.18.219.21

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    132ms
    |
    3ms
    |
    108ms
  • 216.18.219.22

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    140ms
    |
    3ms
    |
    106ms
  • 216.18.219.34

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    143ms
    |
    2ms
    |
    102ms
  • 216.18.219.36

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    100% uptime

    138ms
    |
    5ms
    |
    108ms
  • 216.18.219.38

    WebNX, Inc.

    AS18450

    Salt Lake City

    40.7608, -111.8911

    99% uptime

    140ms
    |
    3ms
    |
    106ms
  • 4.151.243.147

    Microsoft Corporation

    AS8075

    San Antonio

    29.4241, -98.4936

    100% uptime

    120ms
    |
    4ms
    |
    219ms
  • 12.43.235.18

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4241, -98.4936

    99% uptime

    153ms
    |
    3ms
    |
    96ms
  • 12.116.239.134

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4241, -98.4936

    100% uptime

    156ms
    |
    0ms
    |
    189ms
  • 12.146.145.42

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.6169, -98.6252

    100% uptime

    144ms
    |
    6ms
    |
    169ms
  • 12.164.105.10

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4059, -98.5078

    100% uptime

    144ms
    |
    6ms
    |
    95ms
  • 12.248.199.154

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4241, -98.4936

    100% uptime

    151ms
    |
    4ms
    |
    233ms
  • 24.169.253.99

    Charter Communications Inc

    AS11427

    San Antonio

    29.4241, -98.4936

    100% uptime

    139ms
    |
    4ms
    |
    189ms
  • 72.179.149.22

    Charter Communications Inc

    AS11427

    San Antonio

    29.4241, -98.4936

    94% uptime

    142ms
    |
    3ms
    |
    260ms
  • 97.77.249.114

    Charter Communications Inc

    AS11427

    San Antonio

    29.5855, -98.4071

    100% uptime

    147ms
    |
    3ms
    |
    184ms
  • 107.131.56.101

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4241, -98.4936

    100% uptime

    137ms
    |
    2ms
    |
    207ms
  • 107.195.73.3

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4241, -98.4936

    99% uptime

    143ms
    |
    2ms
    |
    163ms
  • 107.222.78.149

    AT&T Enterprises, LLC

    AS7018

    San Antonio

    29.4241, -98.4936

    100% uptime

    139ms
    |
    3ms
    |
    62ms
  • 136.50.7.246

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    100% uptime

    131ms
    |
    0ms
    |
    166ms
  • 136.50.95.59

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    100% uptime

    125ms
    |
    0ms
    |
    157ms
  • 136.50.107.201

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    100% uptime

    126ms
    |
    0ms
    |
    165ms
  • 136.51.31.9

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    100% uptime

    135ms
    |
    12ms
    |
    169ms
  • 136.51.57.244

    Google Fiber Inc.

    AS16591

    San Antonio

    29.4241, -98.4936

    100% uptime

    129ms
    |
    0ms
    |
    176ms