DNS Servers

United States of America 4329 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

  • 172.245.152.200

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    98% uptime

    105ms
    |
    2ms
    |
    115ms
  • 192.210.199.102

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    99% uptime

    106ms
    |
    8ms
    |
    94ms
  • 198.12.92.166

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    98% uptime

    105ms
    |
    2ms
    |
    113ms
  • 198.23.187.181

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    105ms
    |
    2ms
    |
    84ms
  • 198.23.213.70

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    98% uptime

    105ms
    |
    6ms
    |
    152ms
  • 198.46.172.170

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    106ms
    |
    1ms
    |
    139ms
  • 208.92.63.150

    Vaspian LLC

    AS40780

    Buffalo

    42.8865, -78.8784

    100% uptime

    109ms
    |
    3ms
    |
    145ms
  • 209.54.102.76

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    105ms
    |
    6ms
    |
    267ms
  • 173.165.81.1

    Comcast Cable Communications, LLC

    AS7922

    Buffalo Grove

    42.1514, -87.9598

    100% uptime

    124ms
    |
    3ms
    |
    295ms
  • 208.98.173.50

    Syringa Networks, LLC

    AS15305

    Buhl

    42.5991, -114.7595

    98% uptime

    149ms
    |
    1ms
    |
    201ms
  • 148.59.174.7

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    99% uptime

    169ms
    |
    7ms
    |
    230ms
  • 148.59.175.95

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    98% uptime

    183ms
    |
    6ms
    |
    225ms
  • 148.59.175.96

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    99% uptime

    178ms
    |
    3ms
    |
    178ms
  • 148.59.175.97

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    98% uptime

    180ms
    |
    3ms
    |
    175ms
  • 23.242.214.139

    Charter Communications Inc

    AS20001

    Burbank

    34.1808, -118.3090

    100% uptime

    175ms
    |
    3ms
    |
    57ms
  • 172.250.71.189

    Charter Communications Inc

    AS20001

    Burbank

    34.1808, -118.3090

    96% uptime

    179ms
    |
    9ms
    |
    184ms
  • 199.48.122.106

    City of Burbank

    AS7194

    Burbank

    34.1808, -118.3090

    100% uptime

    164ms
    |
    7ms
    |
    129ms
  • 71.231.219.86

    Comcast Cable Communications, LLC

    AS7922

    Burien

    47.4704, -122.3468

    96% uptime

    179ms
    |
    9ms
    |
    358ms
  • 38.147.147.36

    ALENCO COMMUNICATIONS, INC

    AS22598

    Burleson

    32.5421, -97.3208

    98% uptime

    151ms
    |
    2ms
    |
    192ms
  • 50.175.242.170

    Comcast Cable Communications, LLC

    AS7922

    Burlingame

    37.5841, -122.3661

    99% uptime

    165ms
    |
    1ms
    |
    162ms
  • 205.201.57.5

    AT&T Enterprises, LLC

    AS7018

    Burlingame

    37.5841, -122.3661

    100% uptime

    169ms
    |
    2ms
    |
    118ms
  • 69.5.125.245

    Burlington Telecom

    AS33604

    Burlington

    44.4759, -73.2121

    100% uptime

    106ms
    |
    2ms
    |
    188ms
  • 8.25.245.251

    Bijou Telephone Co-op Association, Inc.

    AS63107

    Byers

    39.7114, -104.2277

    98% uptime

    120ms
    |
    3ms
    |
    212ms
  • 24.32.212.52

    Optimum

    AS19108

    Byesville

    39.9698, -81.5365

    98% uptime

    132ms
    |
    3ms
    |
    227ms
  • 24.105.244.175

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    98% uptime

    96ms
    |
    3ms
    |
    203ms
  • 69.42.136.37

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    96% uptime

    97ms
    |
    4ms
    |
    167ms
  • 173.214.144.204

    CNSNext

    AS16700

    Cairo

    30.8775, -84.2021

    98% uptime

    120ms
    |
    11ms
    |
    119ms
  • 173.214.151.128

    CNSNext

    AS16700

    Cairo

    30.8775, -84.2021

    100% uptime

    118ms
    |
    3ms
    |
    213ms
  • 65.99.111.9

    Breezeline

    AS11776

    California

    38.3004, -76.5075

    98% uptime

    104ms
    |
    2ms
    |
    159ms
  • 74.214.60.17

    Breezeline

    AS11776

    California

    38.3004, -76.5075

    100% uptime

    105ms
    |
    2ms
    |
    186ms
  • 23.25.243.163

    Comcast Cable Communications, LLC

    AS7922

    Cambridge

    42.3751, -71.1056

    96% uptime

    113ms
    |
    2ms
    |
    210ms
  • 65.182.226.70

    Canby Telephone Association

    AS33470

    Canby

    45.2629, -122.6926

    96% uptime

    145ms
    |
    3ms
    |
    190ms
  • 174.45.208.213

    Charter Communications LLC

    AS33588

    Cañon City

    38.4410, -105.2425

    98% uptime

    156ms
    |
    6ms
    |
    52ms
  • 162.217.128.196

    Penn Wisp, LLC

    AS395821

    Canton

    41.6565, -76.8533

    98% uptime

    108ms
    |
    4ms
    |
    221ms
  • 64.185.0.26

    Vexus Fiber

    AS13693

    Canyon

    34.9803, -101.9188

    98% uptime

    144ms
    |
    5ms
    |
    310ms
  • 73.107.34.250

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    99% uptime

    142ms
    |
    4ms
    |
    329ms
  • 76.101.18.180

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    100% uptime

    148ms
    |
    5ms
    |
    282ms
  • 50.174.127.52

    Comcast Cable Communications, LLC

    AS7922

    Cape May

    38.9351, -74.9060

    100% uptime

    104ms
    |
    4ms
    |
    168ms
  • 24.115.211.61

    PenTeleData Inc.

    AS14928

    Carbondale

    41.5737, -75.5019

    100% uptime

    104ms
    |
    3ms
    |
    174ms
  • 50.147.89.4

    Comcast Cable Communications, LLC

    AS7922

    Carlisle

    40.2015, -77.1889

    100% uptime

    128ms
    |
    0ms
    |
    145ms
  • 24.236.55.18

    TDS TELECOM

    AS4181

    Carlsbad

    32.4207, -104.2288

    100% uptime

    152ms
    |
    3ms
    |
    319ms
  • 74.50.136.69

    Plateau Telecommunications Incorporated

    AS21782

    Carlsbad

    32.4207, -104.2288

    96% uptime

    136ms
    |
    5ms
    |
    175ms
  • 76.53.214.125

    Charter Communications Inc

    AS20001

    Carlsbad

    33.1581, -117.3506

    100% uptime

    171ms
    |
    2ms
    |
    214ms
  • 174.137.69.65

    Penasco Valley Telecommunications

    AS46595

    Carlsbad

    32.4207, -104.2288

    98% uptime

    162ms
    |
    7ms
    |
    326ms
  • 50.238.212.99

    Comcast Cable Communications, LLC

    AS7922

    Carmel

    39.9784, -86.1180

    100% uptime

    128ms
    |
    7ms
    |
    170ms
  • 98.100.23.26

    Charter Communications, Inc

    AS33363

    Carmel

    39.9784, -86.1180

    99% uptime

    126ms
    |
    8ms
    |
    42ms
  • 172.98.131.252

    Xiber

    AS393950

    Carmel

    39.9784, -86.1180

    98% uptime

    110ms
    |
    2ms
    |
    240ms
  • 72.183.203.84

    Charter Communications Inc

    AS11427

    Carrollton

    32.9537, -96.8903

    100% uptime

    139ms
    |
    1ms
    |
    198ms
  • 204.155.59.30

    Southwire Company

    AS54062

    Carrollton

    33.5801, -85.0766

    100% uptime

    121ms
    |
    1ms
    |
    44ms
  • 12.215.210.122

    AT&T Enterprises, LLC

    AS7018

    Carterville

    37.1492, -94.4430

    100% uptime

    144ms
    |
    3ms
    |
    204ms
  • 170.10.24.200

    Fidelity Communication International Inc.

    AS11976

    Carthage

    32.1574, -94.3374

    98% uptime

    150ms
    |
    3ms
    |
    133ms
  • 174.50.200.142

    Comcast Cable Communications, LLC

    AS7922

    Carthage

    36.2523, -85.9517

    100% uptime

    130ms
    |
    2ms
    |
    220ms
  • 199.120.93.86

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    99% uptime

    109ms
    |
    7ms
    |
    128ms
  • 208.126.188.222

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    98% uptime

    129ms
    |
    5ms
    |
    113ms
  • 208.126.199.18

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    100% uptime

    125ms
    |
    3ms
    |
    113ms
  • 66.119.50.180

    Mountain West Technologies Corporation

    AS10947

    Casper

    42.8666, -106.3131

    99% uptime

    124ms
    |
    3ms
    |
    249ms
  • 69.43.10.250

    CityNet

    AS6536

    Cass

    38.3968, -79.9148

    100% uptime

    102ms
    |
    3ms
    |
    128ms
  • 138.43.72.148

    Midwest Energy & Communications

    AS46293

    Cassopolis

    41.9117, -86.0100

    100% uptime

    126ms
    |
    1ms
    |
    62ms
  • 76.154.152.142

    Comcast Cable Communications, LLC

    AS7922

    Castle Rock

    39.3722, -104.8561

    96% uptime

    153ms
    |
    3ms
    |
    279ms
  • 12.189.213.34

    AT&T Enterprises, LLC

    AS7018

    Castroville

    36.7658, -121.7580

    98% uptime

    172ms
    |
    1ms
    |
    123ms
  • 12.189.213.41

    AT&T Enterprises, LLC

    AS7018

    Castroville

    36.7658, -121.7580

    100% uptime

    173ms
    |
    4ms
    |
    132ms
  • 12.189.213.42

    AT&T Enterprises, LLC

    AS7018

    Castroville

    36.7658, -121.7580

    100% uptime

    173ms
    |
    4ms
    |
    126ms
  • 66.252.194.112

    BAM Broadband Opco, LLC

    AS20303

    Cave Creek

    33.8333, -111.9508

    100% uptime

    149ms
    |
    6ms
    |
    90ms
  • 72.12.252.239

    South Central Communications, Inc.

    AS26253

    Cedar City

    37.6775, -113.0619

    100% uptime

    138ms
    |
    4ms
    |
    23ms
  • 24.149.3.190

    The Municipal Communications Utility of the City of Cedar Falls, Iowa

    AS13855

    Cedar Falls

    42.5278, -92.4455

    100% uptime

    119ms
    |
    8ms
    |
    175ms
  • 23.239.11.40

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    1ms
    |
    113ms
  • 45.33.82.130

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    99% uptime

    91ms
    |
    0ms
    |
    110ms
  • 45.56.106.212

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    90ms
    |
    1ms
    |
    104ms
  • 45.79.139.34

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    1ms
    |
    72ms
  • 45.79.165.126

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    30ms
  • 66.175.212.114

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    13ms
  • 66.228.41.244

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    1ms
    |
    102ms
  • 97.107.128.87

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    90ms
    |
    0ms
    |
    110ms
  • 173.255.234.13

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    1ms
    |
    61ms
  • 173.255.236.85

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    98% uptime

    91ms
    |
    0ms
    |
    105ms
  • 72.255.86.252

    Mediacom Communications Corp

    AS30036

    Cedar Rapids

    42.0083, -91.6441

    100% uptime

    116ms
    |
    3ms
    |
    42ms
  • 207.191.219.70

    ImOn Communications, LLC

    AS393238

    Cedar Rapids

    42.0083, -91.6441

    100% uptime

    112ms
    |
    4ms
    |
    64ms
  • 63.143.183.212

    Optimum Online

    AS53488

    Centereach

    40.8584, -73.0995

    99% uptime

    134ms
    |
    4ms
    |
    292ms
  • 67.83.53.22

    Cablevision Systems Corp.

    AS6128

    Centereach

    40.8584, -73.0995

    100% uptime

    99ms
    |
    1ms
    |
    160ms
  • 69.121.208.250

    Cablevision Systems Corp.

    AS6128

    Centereach

    40.8584, -73.0995

    99% uptime

    94ms
    |
    1ms
    |
    137ms
  • 24.192.141.132

    WideOpenWest Finance LLC

    AS12083

    Center Line

    42.4850, -83.0277

    96% uptime

    127ms
    |
    3ms
    |
    215ms
  • 69.10.220.6

    Rainier Connect

    AS20394

    Centralia

    46.7162, -122.9543

    98% uptime

    157ms
    |
    8ms
    |
    207ms
  • 23.142.144.7

    Joscor LLC

    AS398031

    Centreville

    38.8404, -77.4289

    98% uptime

    101ms
    |
    4ms
    |
    61ms
  • 71.126.144.198

    Verizon Business

    AS701

    Centreville

    38.8404, -77.4289

    100% uptime

    111ms
    |
    4ms
    |
    160ms
  • 71.246.237.73

    Verizon Business

    AS701

    Centreville

    38.8404, -77.4289

    100% uptime

    113ms
    |
    2ms
    |
    165ms
  • 207.58.173.145

    Leaseweb USA, Inc.

    AS30633

    Centreville

    38.8404, -77.4289

    98% uptime

    109ms
    |
    3ms
    |
    238ms
  • 209.50.227.202

    Leaseweb USA, Inc.

    AS30633

    Centreville

    38.8404, -77.4289

    100% uptime

    109ms
    |
    0ms
    |
    142ms
  • 4.39.106.244

    Level 3 Parent, LLC

    AS3356

    Chandler

    33.3062, -111.8413

    99% uptime

    152ms
    |
    1ms
    |
    148ms
  • 206.80.209.33

    CenturyLink Communications, LLC

    AS209

    Chandler

    33.3062, -111.8413

    98% uptime

    150ms
    |
    1ms
    |
    212ms
  • 65.141.34.147

    CenturyLink Communications, LLC

    AS209

    Chanhassen

    44.8622, -93.5308

    100% uptime

    131ms
    |
    7ms
    |
    187ms
  • 50.168.29.38

    Comcast Cable Communications, LLC

    AS7922

    Charleston

    32.7763, -79.9327

    98% uptime

    137ms
    |
    2ms
    |
    227ms
  • 50.168.29.165

    Comcast Cable Communications, LLC

    AS7922

    Charleston

    32.7763, -79.9327

    98% uptime

    138ms
    |
    8ms
    |
    231ms
  • 50.252.149.69

    Comcast Cable Communications, LLC

    AS7922

    Charleston

    32.7763, -79.9327

    98% uptime

    148ms
    |
    5ms
    |
    280ms
  • 24.106.172.234

    Charter Communications Inc

    AS11426

    Charlotte

    35.2271, -80.8431

    100% uptime

    116ms
    |
    2ms
    |
    164ms
  • 65.190.102.210

    Charter Communications Inc

    AS11426

    Charlotte

    35.2271, -80.8431

    100% uptime

    124ms
    |
    10ms
    |
    143ms
  • 71.75.139.0

    Charter Communications Inc

    AS11426

    Charlotte

    35.2271, -80.8431

    100% uptime

    124ms
    |
    3ms
    |
    80ms
  • 96.10.168.243

    Charter Communications Inc

    AS11426

    Charlotte

    35.2271, -80.8431

    100% uptime

    122ms
    |
    9ms
    |
    106ms
  • 98.142.246.67

    BreezeHost

    AS400810

    Charlotte

    35.2271, -80.8431

    100% uptime

    112ms
    |
    1ms
    |
    139ms
  • 136.57.91.234

    Google Fiber Inc.

    AS16591

    Charlotte

    35.2271, -80.8431

    98% uptime

    117ms
    |
    5ms
    |
    98ms
  • 165.166.35.251

    Spirit Communications

    AS2711

    Charlotte

    35.2271, -80.8431

    100% uptime

    112ms
    |
    3ms
    |
    94ms