DNS Servers

United States of America 4495 local DNS servers

Download list

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

  • 68.192.86.178

    Cablevision Systems Corp.

    AS6128

    Fairfield

    41.1412, -73.2637

    97% uptime

    91ms
    |
    4ms
    |
    120ms
  • 69.121.196.205

    Cablevision Systems Corp.

    AS6128

    Fairfield

    41.1412, -73.2637

    99% uptime

    92ms
    |
    4ms
    |
    145ms
  • 45.19.142.219

    AT&T Enterprises, LLC

    AS7018

    Fair Oaks

    38.6446, -121.2722

    99% uptime

    164ms
    |
    1ms
    |
    80ms
  • 99.87.224.211

    AT&T Enterprises, LLC

    AS7018

    Fair Oaks

    38.6446, -121.2722

    96% uptime

    160ms
    |
    1ms
    |
    230ms
  • 24.59.114.211

    Charter Communications Inc

    AS11351

    Fairport

    43.0987, -77.4419

    99% uptime

    131ms
    |
    6ms
    |
    41ms
  • 72.45.165.2

    Charter Communications Inc

    AS11351

    Fairport

    43.0987, -77.4419

    100% uptime

    117ms
    |
    3ms
    |
    72ms
  • 23.88.173.5

    Central Utah Telephone, Inc.

    AS36103

    Fairview

    39.6264, -111.4396

    100% uptime

    133ms
    |
    1ms
    |
    226ms
  • 23.88.173.229

    Central Utah Telephone, Inc.

    AS36103

    Fairview

    39.6264, -111.4396

    99% uptime

    133ms
    |
    0ms
    |
    242ms
  • 204.225.30.52

    Central Utah Telephone, Inc.

    AS36103

    Fairview

    39.6264, -111.4396

    100% uptime

    133ms
    |
    1ms
    |
    264ms
  • 64.113.164.44

    CC Communications

    AS16664

    Fallon

    39.4735, -118.7774

    99% uptime

    158ms
    |
    5ms
    |
    141ms
  • 24.116.98.138

    CABLE ONE, INC.

    AS11492

    Fargo

    46.8772, -96.7898

    99% uptime

    128ms
    |
    13ms
    |
    293ms
  • 153.66.54.6

    Space Exploration Technologies Corporation

    AS14593

    Fargo

    46.8772, -96.7898

    99% uptime

    147ms
    |
    8ms
    |
    103ms
  • 184.155.87.80

    CABLE ONE, INC.

    AS11492

    Fargo

    46.8772, -96.7898

    98% uptime

    134ms
    |
    5ms
    |
    56ms
  • 66.69.42.84

    Charter Communications Inc

    AS11427

    Farmers Branch

    32.9265, -96.8961

    99% uptime

    136ms
    |
    3ms
    |
    207ms
  • 71.78.65.54

    Charter Communications Inc

    AS11427

    Farmers Branch

    32.9265, -96.8961

    97% uptime

    140ms
    |
    4ms
    |
    216ms
  • 69.89.160.204

    QCOL INC

    AS26873

    Farmington

    39.8073, -79.5656

    100% uptime

    104ms
    |
    0ms
    |
    180ms
  • 216.195.174.53

    Biddeford Internet Corp

    AS5760

    Farmington

    44.6706, -70.1512

    96% uptime

    88ms
    |
    4ms
    |
    68ms
  • 35.130.111.98

    Charter Communications LLC

    AS20115

    Farragut

    35.8845, -84.1535

    100% uptime

    126ms
    |
    3ms
    |
    187ms
  • 167.224.195.162

    OzarksGo, LLC

    AS395662

    Fayetteville

    36.0626, -94.1574

    99% uptime

    149ms
    |
    5ms
    |
    104ms
  • 170.10.183.214

    OzarksGo, LLC

    AS395662

    Fayetteville

    36.0626, -94.1574

    100% uptime

    146ms
    |
    3ms
    |
    20ms
  • 69.167.73.20

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    100% uptime

    124ms
    |
    6ms
    |
    114ms
  • 69.167.73.21

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    100% uptime

    124ms
    |
    6ms
    |
    116ms
  • 69.167.73.22

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    97% uptime

    124ms
    |
    6ms
    |
    116ms
  • 69.167.73.26

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    100% uptime

    124ms
    |
    16ms
    |
    116ms
  • 69.167.73.27

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    97% uptime

    124ms
    |
    6ms
    |
    117ms
  • 69.167.73.28

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    100% uptime

    124ms
    |
    6ms
    |
    126ms
  • 69.167.73.29

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    100% uptime

    124ms
    |
    6ms
    |
    113ms
  • 69.167.73.30

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    100% uptime

    124ms
    |
    16ms
    |
    117ms
  • 69.167.73.31

    GTT Communications Inc.

    AS3257

    Fernandina Beach

    30.6697, -81.4626

    97% uptime

    124ms
    |
    16ms
    |
    116ms
  • 208.70.216.64

    Nova86

    AS401538

    Ferrelview

    39.3111, -94.6650

    100% uptime

    126ms
    |
    9ms
    |
    203ms
  • 173.85.214.22

    Frontier Communications of America, Inc.

    AS5650

    Fillmore

    38.9689, -112.3235

    100% uptime

    175ms
    |
    4ms
    |
    142ms
  • 74.143.189.146

    Charter Communications Inc

    AS10796

    Fincastle

    38.3079, -85.5422

    100% uptime

    122ms
    |
    1ms
    |
    191ms
  • 147.219.73.153

    Charter Communications LLC

    AS20115

    Fitchburg

    42.9608, -89.4698

    100% uptime

    153ms
    |
    4ms
    |
    134ms
  • 8.29.19.2

    Level 3 Parent, LLC

    AS3356

    Flagstaff

    35.1981, -111.6513

    100% uptime

    157ms
    |
    20ms
    |
    304ms
  • 68.51.198.251

    Comcast Cable Communications, LLC

    AS7922

    Flint

    43.0125, -83.6875

    96% uptime

    122ms
    |
    2ms
    |
    242ms
  • 108.6.190.18

    Verizon Business

    AS701

    Floral Park

    40.7237, -73.7048

    100% uptime

    101ms
    |
    2ms
    |
    105ms
  • 66.37.75.67

    Citizens Telephone Cooperative

    AS16942

    Floyd

    36.9112, -80.3200

    99% uptime

    96ms
    |
    1ms
    |
    24ms
  • 47.12.231.224

    Charter Communications LLC

    AS20115

    Fond du Lac

    43.7750, -88.4388

    100% uptime

    153ms
    |
    4ms
    |
    79ms
  • 24.31.3.254

    Vyve Broadband

    AS35986

    Forest City

    35.3340, -81.8651

    100% uptime

    124ms
    |
    5ms
    |
    172ms
  • 50.226.13.118

    Comcast Cable Communications, LLC

    AS7922

    Forest Park

    33.6221, -84.3691

    100% uptime

    114ms
    |
    9ms
    |
    23ms
  • 50.226.13.120

    Comcast Cable Communications, LLC

    AS7922

    Forest Park

    33.6221, -84.3691

    100% uptime

    113ms
    |
    2ms
    |
    21ms
  • 50.226.13.122

    Comcast Cable Communications, LLC

    AS7922

    Forest Park

    33.6221, -84.3691

    100% uptime

    113ms
    |
    2ms
    |
    21ms
  • 50.226.13.123

    Comcast Cable Communications, LLC

    AS7922

    Forest Park

    33.6221, -84.3691

    100% uptime

    113ms
    |
    3ms
    |
    10ms
  • 50.226.13.124

    Comcast Cable Communications, LLC

    AS7922

    Forest Park

    33.6221, -84.3691

    100% uptime

    116ms
    |
    2ms
    |
    18ms
  • 50.226.13.126

    Comcast Cable Communications, LLC

    AS7922

    Forest Park

    33.6221, -84.3691

    100% uptime

    113ms
    |
    3ms
    |
    23ms
  • 50.226.13.127

    Comcast Cable Communications, LLC

    AS7922

    Forest Park

    33.6221, -84.3691

    100% uptime

    113ms
    |
    2ms
    |
    20ms
  • 206.40.44.170

    Call One Inc.

    AS63186

    Forest Park

    33.6221, -84.3691

    100% uptime

    110ms
    |
    1ms
    |
    47ms
  • 167.199.230.105

    Georgia Technology Authority

    AS2897

    Forsyth

    33.0343, -83.9382

    100% uptime

    121ms
    |
    1ms
    |
    108ms
  • 98.123.157.10

    Charter Communications Inc

    AS10796

    Fort Branch

    38.2512, -87.5811

    99% uptime

    125ms
    |
    7ms
    |
    176ms
  • 40.133.225.71

    Windstream Communications LLC

    AS7029

    Fort Collins

    40.5853, -105.0844

    100% uptime

    132ms
    |
    1ms
    |
    197ms
  • 50.147.85.166

    Comcast Cable Communications, LLC

    AS7922

    Fort Indiantown Gap

    40.4398, -76.5983

    100% uptime

    121ms
    |
    1ms
    |
    211ms
  • 4.2.94.227

    Level 3 Parent, LLC

    AS3356

    Fort Lauderdale

    26.1223, -80.1434

    99% uptime

    135ms
    |
    9ms
    |
    278ms
  • 12.79.65.50

    AT&T Enterprises, LLC

    AS7018

    Fort Lauderdale

    26.1223, -80.1434

    100% uptime

    127ms
    |
    0ms
    |
    160ms
  • 50.216.204.150

    Comcast Cable Communications, LLC

    AS7922

    Fort Lauderdale

    26.1223, -80.1434

    97% uptime

    127ms
    |
    3ms
    |
    94ms
  • 170.55.159.178

    Zayo Bandwidth

    AS33132

    Fort Lauderdale

    26.1223, -80.1434

    100% uptime

    124ms
    |
    3ms
    |
    180ms
  • 65.141.117.234

    CenturyLink Communications, LLC

    AS209

    Fort Myers

    26.6217, -81.8406

    100% uptime

    134ms
    |
    3ms
    |
    194ms
  • 162.245.111.150

    Sho Me Technologies, LLC

    AS55140

    Fort Scott

    37.8398, -94.7083

    96% uptime

    114ms
    |
    0ms
    |
    234ms
  • 74.220.135.29

    Ritter Communications

    AS23404

    Fort Smith

    35.3859, -94.3986

    100% uptime

    156ms
    |
    4ms
    |
    237ms
  • 12.189.42.82

    AT&T Enterprises, LLC

    AS7018

    Fort Stockton

    30.8940, -102.8793

    98% uptime

    137ms
    |
    2ms
    |
    219ms
  • 96.241.49.94

    Verizon Business

    AS701

    Fort Washington

    38.7073, -77.0230

    100% uptime

    107ms
    |
    1ms
    |
    28ms
  • 50.238.174.106

    Comcast Cable Communications, LLC

    AS7922

    Fort Wayne

    41.1306, -85.1289

    100% uptime

    120ms
    |
    1ms
    |
    25ms
  • 4.71.168.76

    Level 3 Parent, LLC

    AS3356

    Fort Worth

    32.7254, -97.3208

    100% uptime

    127ms
    |
    1ms
    |
    144ms
  • 12.132.91.170

    AT&T Enterprises, LLC

    AS7018

    Fort Worth

    32.7254, -97.3208

    100% uptime

    128ms
    |
    2ms
    |
    151ms
  • 24.182.218.46

    Charter Communications LLC

    AS20115

    Fort Worth

    32.7254, -97.3208

    100% uptime

    141ms
    |
    2ms
    |
    236ms
  • 66.182.196.74

    Millennium Telcom LLC

    AS20135

    Fort Worth

    32.7254, -97.3208

    100% uptime

    115ms
    |
    2ms
    |
    136ms
  • 68.187.44.3

    Charter Communications LLC

    AS20115

    Fort Worth

    32.7254, -97.3208

    100% uptime

    150ms
    |
    3ms
    |
    220ms
  • 132.147.138.18

    Nextlink Broadband

    AS26077

    Fort Worth

    32.7254, -97.3208

    100% uptime

    114ms
    |
    1ms
    |
    18ms
  • 209.215.207.250

    AT&T Enterprises, LLC

    AS7018

    Fort Worth

    32.7254, -97.3208

    97% uptime

    135ms
    |
    2ms
    |
    198ms
  • 209.215.207.251

    AT&T Enterprises, LLC

    AS7018

    Fort Worth

    32.7254, -97.3208

    100% uptime

    136ms
    |
    2ms
    |
    193ms
  • 209.215.207.252

    AT&T Enterprises, LLC

    AS7018

    Fort Worth

    32.7254, -97.3208

    100% uptime

    136ms
    |
    3ms
    |
    199ms
  • 174.137.11.219

    Southwest Arkansas Telephone Cooperative

    AS46632

    Fouke

    33.2612, -93.8855

    100% uptime

    132ms
    |
    2ms
    |
    86ms
  • 24.102.154.147

    PenTeleData Inc.

    AS3737

    Fountain Hill

    40.6015, -75.3952

    100% uptime

    98ms
    |
    2ms
    |
    147ms
  • 24.115.13.16

    PenTeleData Inc.

    AS3737

    Fountain Hill

    40.6015, -75.3952

    99% uptime

    99ms
    |
    2ms
    |
    146ms
  • 24.115.252.253

    PenTeleData Inc.

    AS3737

    Fountain Hill

    40.6015, -75.3952

    100% uptime

    99ms
    |
    2ms
    |
    150ms
  • 24.229.116.115

    PenTeleData Inc.

    AS3737

    Fountain Hill

    40.6015, -75.3952

    100% uptime

    96ms
    |
    1ms
    |
    140ms
  • 64.67.89.243

    PenTeleData Inc.

    AS3737

    Fountain Hill

    40.6015, -75.3952

    96% uptime

    96ms
    |
    5ms
    |
    172ms
  • 70.15.37.40

    PenTeleData Inc.

    AS3737

    Fountain Hill

    40.6015, -75.3952

    100% uptime

    97ms
    |
    1ms
    |
    152ms
  • 96.86.109.181

    Comcast Cable Communications, LLC

    AS7922

    Framingham

    42.2793, -71.4162

    96% uptime

    101ms
    |
    2ms
    |
    214ms
  • 216.250.32.34

    All West Communications, Inc.

    AS13614

    Francis

    40.6105, -111.2807

    100% uptime

    137ms
    |
    3ms
    |
    193ms
  • 23.185.192.66

    Swayzee Telephone Company, Inc.

    AS53989

    Frankfort

    40.2795, -86.5108

    97% uptime

    108ms
    |
    1ms
    |
    172ms
  • 216.21.176.50

    Geetingsville Telephone Co., Inc.

    AS31920

    Frankfort

    40.2795, -86.5108

    100% uptime

    107ms
    |
    4ms
    |
    166ms
  • 50.204.72.178

    Comcast Cable Communications, LLC

    AS7922

    Franklin

    35.9251, -86.8689

    100% uptime

    122ms
    |
    5ms
    |
    174ms
  • 63.142.139.211

    BalsamWest FiberNET, LLC

    AS14430

    Franklin

    35.1823, -83.3815

    100% uptime

    103ms
    |
    1ms
    |
    261ms
  • 73.58.238.7

    Comcast Cable Communications, LLC

    AS7922

    Franklin

    35.9251, -86.8689

    98% uptime

    131ms
    |
    2ms
    |
    266ms
  • 74.219.207.136

    Charter Communications Inc

    AS10796

    Franklin

    39.5590, -84.3041

    98% uptime

    131ms
    |
    2ms
    |
    252ms
  • 74.219.207.139

    Charter Communications Inc

    AS10796

    Franklin

    39.5590, -84.3041

    98% uptime

    131ms
    |
    2ms
    |
    252ms
  • 74.219.207.150

    Charter Communications Inc

    AS10796

    Franklin

    39.5590, -84.3041

    96% uptime

    133ms
    |
    3ms
    |
    256ms
  • 74.219.207.155

    Charter Communications Inc

    AS10796

    Franklin

    39.5590, -84.3041

    98% uptime

    133ms
    |
    2ms
    |
    255ms
  • 107.10.155.15

    Charter Communications Inc

    AS10796

    Franklin

    39.5590, -84.3041

    100% uptime

    129ms
    |
    7ms
    |
    76ms
  • 24.104.33.105

    Comcast Cable Communications, LLC

    AS7922

    Franklin Park

    40.5834, -80.0878

    100% uptime

    112ms
    |
    1ms
    |
    47ms
  • 64.66.121.140

    Dunkirk & Fredonia Telephone Company

    AS29968

    Fredonia

    42.4401, -79.3317

    100% uptime

    101ms
    |
    2ms
    |
    208ms
  • 12.12.155.234

    AT&T Enterprises, LLC

    AS7018

    Fremont

    37.5483, -121.9886

    100% uptime

    158ms
    |
    1ms
    |
    56ms
  • 23.92.25.168

    Akamai Connected Cloud

    AS63949

    Fremont

    37.5483, -121.9886

    100% uptime

    160ms
    |
    3ms
    |
    184ms
  • 23.132.96.185

    igloo22225

    AS42615

    Fremont

    37.5483, -121.9886

    100% uptime

    151ms
    |
    1ms
    |
    17ms
  • 45.33.33.248

    Akamai Connected Cloud

    AS63949

    Fremont

    37.5483, -121.9886

    100% uptime

    158ms
    |
    3ms
    |
    78ms
  • 45.33.39.81

    Akamai Connected Cloud

    AS63949

    Fremont

    37.5483, -121.9886

    100% uptime

    154ms
    |
    3ms
    |
    20ms
  • 45.33.48.169

    Akamai Connected Cloud

    AS63949

    Fremont

    37.5483, -121.9886

    100% uptime

    157ms
    |
    1ms
    |
    163ms
  • 45.79.97.159

    Akamai Connected Cloud

    AS63949

    Fremont

    37.5483, -121.9886

    100% uptime

    157ms
    |
    4ms
    |
    16ms
  • 50.206.65.4

    Comcast Cable Communications, LLC

    AS7922

    Fremont

    37.5308, -121.9712

    100% uptime

    163ms
    |
    1ms
    |
    170ms
  • 64.62.163.142

    Hurricane Electric LLC

    AS6939

    Fremont

    37.5483, -121.9886

    100% uptime

    177ms
    |
    13ms
    |
    137ms