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

  • 172.245.152.200

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    105ms
    |
    1ms
    |
    125ms
  • 192.3.33.82

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    106ms
    |
    9ms
    |
    108ms
  • 192.3.164.172

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    106ms
    |
    0ms
    |
    12ms
  • 192.210.199.102

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    106ms
    |
    8ms
    |
    48ms
  • 192.210.233.242

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    99% uptime

    105ms
    |
    1ms
    |
    139ms
  • 192.227.211.96

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    88% uptime

    105ms
    |
    0ms
    |
    2ms
  • 198.12.73.200

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    94% uptime

    106ms
    |
    0ms
    |
    180ms
  • 198.12.92.166

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    105ms
    |
    0ms
    |
    113ms
  • 198.23.187.181

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    106ms
    |
    0ms
    |
    90ms
  • 198.23.213.70

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    105ms
    |
    1ms
    |
    138ms
  • 209.54.102.76

    HostPapa

    AS36352

    Buffalo

    42.8865, -78.8784

    100% uptime

    105ms
    |
    2ms
    |
    254ms
  • 50.247.134.226

    Comcast Cable Communications, LLC

    AS7922

    Buffalo Grove

    42.1514, -87.9598

    88% uptime

    141ms
    |
    2ms
    |
    204ms
  • 8.30.181.224

    Cherryland Services Inc

    AS13904

    Bullhead City

    35.1478, -114.5683

    100% uptime

    166ms
    |
    23ms
    |
    180ms
  • 148.59.174.7

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    99% uptime

    168ms
    |
    12ms
    |
    168ms
  • 148.59.174.47

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    94% uptime

    171ms
    |
    5ms
    |
    253ms
  • 148.59.174.92

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    100% uptime

    163ms
    |
    23ms
    |
    150ms
  • 148.59.175.81

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    94% uptime

    177ms
    |
    2ms
    |
    74ms
  • 148.59.175.87

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    98% uptime

    177ms
    |
    4ms
    |
    74ms
  • 148.59.175.88

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    94% uptime

    196ms
    |
    10ms
    |
    201ms
  • 148.59.175.95

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    94% uptime

    187ms
    |
    7ms
    |
    217ms
  • 148.59.175.96

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    100% uptime

    176ms
    |
    3ms
    |
    142ms
  • 148.59.175.97

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    100% uptime

    177ms
    |
    0ms
    |
    134ms
  • 148.59.175.103

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    94% uptime

    189ms
    |
    8ms
    |
    223ms
  • 148.59.175.140

    Wi-Fiber, Inc.

    AS397354

    Bullhead City

    35.1478, -114.5683

    100% uptime

    192ms
    |
    12ms
    |
    154ms
  • 23.242.214.139

    Charter Communications Inc

    AS20001

    Burbank

    34.1808, -118.3090

    100% uptime

    177ms
    |
    1ms
    |
    64ms
  • 199.48.122.106

    City of Burbank

    AS7194

    Burbank

    34.1808, -118.3090

    100% uptime

    164ms
    |
    6ms
    |
    93ms
  • 209.16.67.112

    Vexus Fiber

    AS13693

    Burkburnett

    34.0979, -98.5706

    100% uptime

    147ms
    |
    1ms
    |
    247ms
  • 38.147.147.36

    ALENCO COMMUNICATIONS, INC

    AS22598

    Burleson

    32.5421, -97.3208

    98% uptime

    150ms
    |
    1ms
    |
    183ms
  • 50.175.242.170

    Comcast Cable Communications, LLC

    AS7922

    Burlingame

    37.5841, -122.3661

    99% uptime

    165ms
    |
    1ms
    |
    107ms
  • 108.160.181.171

    ALENCO COMMUNICATIONS, INC

    AS22598

    Cactus

    27.9069, -99.3939

    100% uptime

    148ms
    |
    3ms
    |
    50ms
  • 24.105.250.170

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    100% uptime

    97ms
    |
    8ms
    |
    172ms
  • 24.148.122.57

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    100% uptime

    98ms
    |
    2ms
    |
    174ms
  • 24.148.127.221

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    94% uptime

    96ms
    |
    16ms
    |
    171ms
  • 69.42.153.5

    Mid-Hudson Cablevision, Inc.

    AS32953

    Cairo

    42.2990, -73.9985

    100% uptime

    96ms
    |
    4ms
    |
    174ms
  • 74.214.60.17

    Breezeline

    AS11776

    California

    38.3004, -76.5075

    100% uptime

    106ms
    |
    3ms
    |
    184ms
  • 50.210.244.137

    Comcast Cable Communications, LLC

    AS7922

    Camden

    39.9260, -75.1196

    99% uptime

    115ms
    |
    2ms
    |
    226ms
  • 73.160.242.90

    Comcast Cable Communications, LLC

    AS7922

    Camden

    39.9260, -75.1196

    100% uptime

    118ms
    |
    1ms
    |
    220ms
  • 173.214.155.137

    CNSNext

    AS16700

    Camilla

    31.2313, -84.2105

    100% uptime

    116ms
    |
    9ms
    |
    116ms
  • 216.162.105.110

    Southwest Texas Communications

    AS46853

    Camp Wood

    29.6694, -100.0123

    98% uptime

    128ms
    |
    10ms
    |
    181ms
  • 72.175.155.242

    Charter Communications LLC

    AS33588

    Cañon City

    38.4410, -105.2425

    100% uptime

    170ms
    |
    7ms
    |
    186ms
  • 174.45.208.213

    Charter Communications LLC

    AS33588

    Cañon City

    38.4410, -105.2425

    100% uptime

    158ms
    |
    7ms
    |
    52ms
  • 216.16.18.2

    Clarity Telecom LLC

    AS20412

    Canton

    43.3008, -96.5928

    100% uptime

    134ms
    |
    1ms
    |
    32ms
  • 73.23.241.6

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    99% uptime

    150ms
    |
    3ms
    |
    314ms
  • 73.107.34.250

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    94% uptime

    143ms
    |
    3ms
    |
    325ms
  • 73.107.213.229

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    100% uptime

    146ms
    |
    1ms
    |
    316ms
  • 96.80.169.129

    Comcast Cable Communications, LLC

    AS7922

    Cape Coral

    26.5629, -81.9495

    99% uptime

    139ms
    |
    4ms
    |
    294ms
  • 209.136.82.98

    Cameron Communications, LLC

    AS26831

    Carlyss

    30.1688, -93.3760

    100% uptime

    145ms
    |
    3ms
    |
    38ms
  • 50.238.212.99

    Comcast Cable Communications, LLC

    AS7922

    Carmel

    39.9784, -86.1180

    100% uptime

    131ms
    |
    5ms
    |
    162ms
  • 98.100.23.26

    Charter Communications, Inc

    AS33363

    Carmel

    39.9784, -86.1180

    100% uptime

    129ms
    |
    1ms
    |
    151ms
  • 72.183.203.84

    Charter Communications Inc

    AS11427

    Carrollton

    32.9537, -96.8903

    99% uptime

    140ms
    |
    3ms
    |
    202ms
  • 204.155.59.31

    Southwire Company

    AS54062

    Carrollton

    33.5801, -85.0766

    100% uptime

    122ms
    |
    0ms
    |
    34ms
  • 162.249.49.238

    Carthage Water and Electric

    AS29696

    Carthage

    37.1765, -94.3102

    100% uptime

    120ms
    |
    0ms
    |
    182ms
  • 199.120.93.86

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    99% uptime

    109ms
    |
    10ms
    |
    111ms
  • 208.126.188.222

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    100% uptime

    129ms
    |
    0ms
    |
    94ms
  • 208.126.198.7

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    100% uptime

    128ms
    |
    0ms
    |
    50ms
  • 208.126.198.105

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    100% uptime

    129ms
    |
    0ms
    |
    152ms
  • 208.126.199.18

    Aureon Network Services

    AS5056

    Cascade

    42.2986, -91.0149

    100% uptime

    125ms
    |
    0ms
    |
    108ms
  • 66.119.50.180

    Mountain West Technologies Corporation

    AS10947

    Casper

    42.8666, -106.3131

    94% uptime

    124ms
    |
    0ms
    |
    246ms
  • 69.43.10.250

    CityNet

    AS6536

    Cass

    38.3968, -79.9148

    100% uptime

    101ms
    |
    2ms
    |
    108ms
  • 50.147.132.214

    Comcast Cable Communications, LLC

    AS7922

    Castle Rock

    39.3722, -104.8561

    100% uptime

    145ms
    |
    1ms
    |
    248ms
  • 73.14.21.240

    Comcast Cable Communications, LLC

    AS7922

    Castle Rock

    39.3722, -104.8561

    100% uptime

    154ms
    |
    6ms
    |
    289ms
  • 12.189.213.42

    AT&T Enterprises, LLC

    AS7018

    Castroville

    36.7658, -121.7580

    100% uptime

    173ms
    |
    2ms
    |
    139ms
  • 162.219.118.212

    Hillbilly Wireless INC.

    AS62682

    Cave City

    35.9417, -91.5485

    94% uptime

    148ms
    |
    1ms
    |
    228ms
  • 66.252.194.112

    BAM Broadband Opco, LLC

    AS20303

    Cave Creek

    33.8333, -111.9508

    100% uptime

    148ms
    |
    1ms
    |
    102ms
  • 24.149.3.190

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

    AS13855

    Cedar Falls

    42.5278, -92.4455

    100% uptime

    118ms
    |
    0ms
    |
    174ms
  • 23.239.11.40

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    1ms
    |
    110ms
  • 45.33.82.130

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    112ms
  • 45.56.106.212

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    90ms
    |
    1ms
    |
    105ms
  • 45.79.139.34

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    99% uptime

    91ms
    |
    0ms
    |
    66ms
  • 45.79.165.126

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    36ms
  • 50.116.63.99

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    56ms
  • 66.175.212.114

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    16ms
  • 66.228.32.185

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    1ms
    |
    119ms
  • 66.228.41.244

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    102ms
  • 69.164.214.118

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    99% uptime

    90ms
    |
    1ms
    |
    116ms
  • 75.99.99.46

    Cablevision Systems Corp.

    AS6128

    Cedar Knolls

    40.8220, -74.4488

    99% uptime

    102ms
    |
    1ms
    |
    75ms
  • 96.126.109.186

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    98% uptime

    91ms
    |
    1ms
    |
    104ms
  • 97.107.128.87

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    90ms
    |
    0ms
    |
    109ms
  • 162.216.18.93

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    91ms
    |
    0ms
    |
    134ms
  • 173.255.226.196

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    98% uptime

    91ms
    |
    1ms
    |
    110ms
  • 173.255.233.88

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    100% uptime

    90ms
    |
    1ms
    |
    71ms
  • 173.255.236.85

    Akamai Connected Cloud

    AS63949

    Cedar Knolls

    40.8220, -74.4488

    99% uptime

    91ms
    |
    0ms
    |
    105ms
  • 72.255.86.252

    Mediacom Communications Corp

    AS30036

    Cedar Rapids

    42.0083, -91.6441

    100% uptime

    116ms
    |
    0ms
    |
    47ms
  • 207.191.219.70

    ImOn Communications, LLC

    AS393238

    Cedar Rapids

    42.0083, -91.6441

    98% uptime

    111ms
    |
    12ms
    |
    42ms
  • 63.143.183.212

    Optimum Online

    AS53488

    Centereach

    40.8584, -73.0995

    100% uptime

    135ms
    |
    2ms
    |
    292ms
  • 63.143.207.95

    Optimum Online

    AS53488

    Centereach

    40.8584, -73.0995

    100% uptime

    137ms
    |
    4ms
    |
    280ms
  • 69.121.208.250

    Cablevision Systems Corp.

    AS6128

    Centereach

    40.8584, -73.0995

    100% uptime

    95ms
    |
    2ms
    |
    135ms
  • 24.192.149.189

    WideOpenWest Finance LLC

    AS12083

    Center Line

    42.4850, -83.0277

    99% uptime

    127ms
    |
    2ms
    |
    229ms
  • 69.10.220.6

    Rainier Connect

    AS20394

    Centralia

    46.7162, -122.9543

    100% uptime

    152ms
    |
    2ms
    |
    199ms
  • 23.142.144.6

    Joscor LLC

    AS398031

    Centreville

    38.8404, -77.4289

    100% uptime

    103ms
    |
    1ms
    |
    44ms
  • 71.246.237.73

    Verizon Business

    AS701

    Centreville

    38.8404, -77.4289

    100% uptime

    116ms
    |
    2ms
    |
    158ms
  • 146.168.191.254

    Breezeline

    AS11776

    Centreville

    39.0418, -76.0663

    100% uptime

    110ms
    |
    4ms
    |
    178ms
  • 209.50.227.11

    Leaseweb USA, Inc.

    AS30633

    Centreville

    38.8404, -77.4289

    100% uptime

    111ms
    |
    0ms
    |
    120ms
  • 209.50.227.202

    Leaseweb USA, Inc.

    AS30633

    Centreville

    38.8404, -77.4289

    100% uptime

    109ms
    |
    1ms
    |
    138ms
  • 68.70.162.71

    CONVERGEONE HOLDINGS, INC.

    AS22458

    Champaign

    40.1164, -88.2434

    99% uptime

    101ms
    |
    1ms
    |
    85ms
  • 68.234.242.175

    PAVLOV MEDIA INC

    AS23473

    Champaign

    40.1164, -88.2434

    94% uptime

    106ms
    |
    0ms
    |
    140ms
  • 4.39.106.244

    Level 3 Parent, LLC

    AS3356

    Chandler

    33.3062, -111.8413

    100% uptime

    152ms
    |
    0ms
    |
    130ms
  • 65.141.34.147

    CenturyLink Communications, LLC

    AS209

    Chanhassen

    44.8622, -93.5308

    100% uptime

    132ms
    |
    1ms
    |
    176ms
  • 23.191.176.150

    Free Range Internet LLC

    AS400142

    Charco

    32.2506, -112.6060

    100% uptime

    147ms
    |
    1ms
    |
    111ms
  • 12.124.27.106

    AT&T Enterprises, LLC

    AS7018

    Charlotte

    35.2271, -80.8431

    99% uptime

    124ms
    |
    1ms
    |
    55ms