DNS Servers

United States of America 4305 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

  • 170.39.180.178

    Northwest Open Access Network

    AS16713

    Kingston

    47.7985, -122.4981

    98% uptime

    138ms
    |
    1ms
    |
    44ms
  • 170.39.181.194

    Northwest Open Access Network

    AS16713

    Kingston

    47.7985, -122.4981

    100% uptime

    138ms
    |
    6ms
    |
    45ms
  • 67.160.11.222

    Comcast Cable Communications, LLC

    AS7922

    Kirkland

    47.6815, -122.2087

    98% uptime

    176ms
    |
    7ms
    |
    337ms
  • 73.225.97.5

    Comcast Cable Communications, LLC

    AS7922

    Kirkland

    47.6815, -122.2087

    100% uptime

    178ms
    |
    8ms
    |
    334ms
  • 50.144.25.171

    Comcast Cable Communications, LLC

    AS7922

    Knoxville

    35.9606, -83.9207

    98% uptime

    132ms
    |
    12ms
    |
    222ms
  • 67.149.29.248

    WideOpenWest Finance LLC

    AS12083

    Knoxville

    35.9606, -83.9207

    100% uptime

    138ms
    |
    3ms
    |
    328ms
  • 76.129.233.120

    Comcast Cable Communications, LLC

    AS7922

    Knoxville

    35.9606, -83.9207

    98% uptime

    140ms
    |
    3ms
    |
    254ms
  • 38.66.88.106

    Cogent Communications, LLC

    AS174

    Kutztown

    40.5173, -75.7774

    98% uptime

    96ms
    |
    1ms
    |
    159ms
  • 209.23.69.58

    8th Fire Communications, LLC

    AS401413

    Lac du Flambeau

    45.9697, -89.8921

    100% uptime

    125ms
    |
    1ms
    |
    72ms
  • 209.23.69.247

    8th Fire Communications, LLC

    AS401413

    Lac du Flambeau

    45.9697, -89.8921

    100% uptime

    126ms
    |
    3ms
    |
    59ms
  • 209.23.72.170

    8th Fire Communications, LLC

    AS401413

    Lac du Flambeau

    45.9697, -89.8921

    99% uptime

    126ms
    |
    1ms
    |
    69ms
  • 209.23.72.231

    8th Fire Communications, LLC

    AS401413

    Lac du Flambeau

    45.9697, -89.8921

    100% uptime

    126ms
    |
    1ms
    |
    96ms
  • 50.219.186.86

    Comcast Cable Communications, LLC

    AS7922

    Lacey

    47.0343, -122.8232

    100% uptime

    169ms
    |
    9ms
    |
    60ms
  • 65.175.152.214

    Breezeline

    AS11776

    Laconia

    43.5279, -71.4703

    98% uptime

    106ms
    |
    3ms
    |
    146ms
  • 65.175.202.170

    Breezeline

    AS11776

    Laconia

    43.5279, -71.4703

    100% uptime

    107ms
    |
    3ms
    |
    154ms
  • 74.219.41.130

    Charter Communications Inc

    AS10796

    La Grange

    38.4076, -85.3788

    96% uptime

    127ms
    |
    2ms
    |
    121ms
  • 24.216.88.236

    Charter Communications LLC

    AS20115

    LaGrange

    33.0393, -85.0313

    100% uptime

    115ms
    |
    2ms
    |
    152ms
  • 74.120.200.121

    Tel-Star Communications, Inc

    AS32845

    Lake Camelot

    40.6307, -89.7421

    100% uptime

    120ms
    |
    5ms
    |
    190ms
  • 208.180.56.91

    Optimum

    AS19108

    Lake Charles

    30.2131, -93.2044

    100% uptime

    158ms
    |
    4ms
    |
    68ms
  • 68.185.163.196

    Charter Communications LLC

    AS20115

    Lake Delton

    43.6011, -89.7937

    100% uptime

    133ms
    |
    4ms
    |
    320ms
  • 38.143.20.4

    Cogent Communications, LLC

    AS174

    Lake Forest

    33.6470, -117.6892

    98% uptime

    166ms
    |
    4ms
    |
    176ms
  • 45.53.187.2

    Frontier Communications of America, Inc.

    AS5650

    Lake Havasu City

    34.4839, -114.3225

    96% uptime

    166ms
    |
    2ms
    |
    222ms
  • 174.60.194.178

    Comcast Cable Communications, LLC

    AS7922

    Lake Meade

    39.9851, -77.0372

    98% uptime

    130ms
    |
    13ms
    |
    177ms
  • 32.141.25.26

    AT&T Enterprises, LLC

    AS7018

    Lake of the Pines

    39.0396, -121.0566

    100% uptime

    167ms
    |
    1ms
    |
    159ms
  • 208.125.244.2

    Charter Communications Inc

    AS11351

    Lake Placid

    44.2796, -73.9820

    100% uptime

    132ms
    |
    2ms
    |
    200ms
  • 208.125.244.3

    Charter Communications Inc

    AS11351

    Lake Placid

    44.2796, -73.9820

    100% uptime

    131ms
    |
    7ms
    |
    202ms
  • 73.83.80.165

    Comcast Cable Communications, LLC

    AS7922

    Lake Stevens

    48.0151, -122.0637

    99% uptime

    179ms
    |
    12ms
    |
    92ms
  • 24.159.215.3

    Charter Communications LLC

    AS20115

    Lakeville

    44.6497, -93.2427

    100% uptime

    144ms
    |
    3ms
    |
    130ms
  • 65.158.126.226

    CenturyLink Communications, LLC

    AS209

    Lakewood

    39.7047, -105.0814

    100% uptime

    139ms
    |
    11ms
    |
    158ms
  • 76.154.188.221

    Comcast Cable Communications, LLC

    AS7922

    Lakewood

    39.7047, -105.0814

    100% uptime

    153ms
    |
    4ms
    |
    268ms
  • 23.165.48.1

    Kudu Systems, LLC

    AS395901

    Lancaster

    37.6195, -84.5780

    98% uptime

    116ms
    |
    4ms
    |
    122ms
  • 71.26.92.5

    Comcast Cable Communications, LLC

    AS7922

    Lancaster

    40.0379, -76.3055

    100% uptime

    141ms
    |
    1ms
    |
    165ms
  • 73.175.7.92

    Comcast Cable Communications, LLC

    AS7922

    Lancaster

    40.0379, -76.3055

    100% uptime

    138ms
    |
    9ms
    |
    74ms
  • 174.59.246.197

    Comcast Cable Communications, LLC

    AS7922

    Lancaster

    40.0379, -76.3055

    100% uptime

    135ms
    |
    1ms
    |
    74ms
  • 50.220.232.38

    Comcast Cable Communications, LLC

    AS7922

    Lansing

    41.5648, -87.5389

    100% uptime

    125ms
    |
    11ms
    |
    16ms
  • 69.16.231.114

    Liquid Web, L.L.C

    AS32244

    Lansing

    42.7325, -84.5555

    98% uptime

    127ms
    |
    8ms
    |
    168ms
  • 72.52.176.11

    Liquid Web, L.L.C

    AS32244

    Lansing

    42.7325, -84.5555

    98% uptime

    126ms
    |
    8ms
    |
    55ms
  • 72.52.176.29

    Liquid Web, L.L.C

    AS32244

    Lansing

    42.7325, -84.5555

    99% uptime

    122ms
    |
    7ms
    |
    64ms
  • 143.109.149.245

    Clarity Telecom LLC

    AS20412

    Laramie

    41.3114, -105.5911

    98% uptime

    135ms
    |
    1ms
    |
    213ms
  • 143.109.157.51

    Clarity Telecom LLC

    AS20412

    Laramie

    41.3114, -105.5911

    100% uptime

    127ms
    |
    1ms
    |
    375ms
  • 150.220.176.18

    Charter Communications Inc

    AS11427

    Laredo

    27.5064, -99.5075

    96% uptime

    146ms
    |
    2ms
    |
    264ms
  • 24.35.62.104

    WideOpenWest Finance LLC

    AS12083

    Largo

    27.9098, -82.7884

    99% uptime

    144ms
    |
    3ms
    |
    256ms
  • 4.38.19.163

    Level 3 Parent, LLC

    AS3356

    Las Vegas

    36.1750, -115.1372

    100% uptime

    157ms
    |
    8ms
    |
    205ms
  • 23.188.104.254

    IO INC

    AS21699

    Las Vegas

    36.1750, -115.1372

    99% uptime

    151ms
    |
    10ms
    |
    10ms
  • 24.120.41.124

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    98% uptime

    182ms
    |
    14ms
    |
    268ms
  • 24.234.80.54

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    99% uptime

    177ms
    |
    3ms
    |
    274ms
  • 24.234.129.131

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    99% uptime

    183ms
    |
    8ms
    |
    267ms
  • 24.234.228.234

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    96% uptime

    184ms
    |
    9ms
    |
    190ms
  • 34.125.40.219

    Google LLC

    AS396982

    Las Vegas

    36.1750, -115.1372

    100% uptime

    148ms
    |
    1ms
    |
    196ms
  • 45.61.150.203

    RouterHosting LLC

    AS14956

    Las Vegas

    36.1750, -115.1372

    100% uptime

    136ms
    |
    8ms
    |
    225ms
  • 72.194.37.11

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    100% uptime

    174ms
    |
    6ms
    |
    132ms
  • 136.179.44.178

    SWITCH, LTD

    AS23005

    Las Vegas

    36.1750, -115.1372

    100% uptime

    165ms
    |
    0ms
    |
    156ms
  • 136.179.48.84

    SWITCH, LTD

    AS23005

    Las Vegas

    36.1750, -115.1372

    99% uptime

    171ms
    |
    3ms
    |
    18ms
  • 136.179.48.86

    SWITCH, LTD

    AS23005

    Las Vegas

    36.1750, -115.1372

    99% uptime

    171ms
    |
    2ms
    |
    8ms
  • 174.68.39.52

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    100% uptime

    173ms
    |
    6ms
    |
    271ms
  • 174.71.216.253

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    99% uptime

    182ms
    |
    9ms
    |
    256ms
  • 174.75.58.68

    Cox Communications Inc.

    AS22773

    Las Vegas

    36.1750, -115.1372

    98% uptime

    177ms
    |
    3ms
    |
    276ms
  • 198.51.169.26

    Nexus Technologies, LLC

    AS55143

    Las Vegas

    36.1750, -115.1372

    100% uptime

    174ms
    |
    3ms
    |
    144ms
  • 198.51.169.99

    Nexus Technologies, LLC

    AS55143

    Las Vegas

    36.1750, -115.1372

    99% uptime

    168ms
    |
    3ms
    |
    148ms
  • 209.141.41.198

    FranTech Solutions

    AS53667

    Las Vegas

    36.1750, -115.1372

    99% uptime

    136ms
    |
    1ms
    |
    8ms
  • 209.141.58.206

    FranTech Solutions

    AS53667

    Las Vegas

    36.1750, -115.1372

    100% uptime

    137ms
    |
    1ms
    |
    13ms
  • 100.36.73.93

    Verizon Business

    AS701

    Laurel

    39.0993, -76.8483

    100% uptime

    104ms
    |
    3ms
    |
    66ms
  • 73.227.134.17

    Comcast Cable Communications, LLC

    AS7922

    Lawrence

    42.7070, -71.1631

    96% uptime

    120ms
    |
    2ms
    |
    183ms
  • 208.75.100.10

    Zoom Fiber

    AS400684

    Lawrence

    38.9717, -95.2352

    99% uptime

    120ms
    |
    3ms
    |
    12ms
  • 24.49.217.210

    Fidelity Communication International Inc.

    AS11976

    Lawton

    34.6087, -98.3903

    99% uptime

    144ms
    |
    2ms
    |
    95ms
  • 67.20.29.206

    Fidelity Communication International Inc.

    AS11976

    Lawton

    34.6087, -98.3903

    99% uptime

    145ms
    |
    2ms
    |
    86ms
  • 170.10.39.52

    Fidelity Communication International Inc.

    AS11976

    Lawton

    34.6087, -98.3903

    99% uptime

    132ms
    |
    1ms
    |
    84ms
  • 204.63.217.82

    Comanche County Memorial Hospital

    AS54214

    Lawton

    34.6087, -98.3903

    100% uptime

    128ms
    |
    2ms
    |
    22ms
  • 12.182.4.63

    AT&T Enterprises, LLC

    AS7018

    Lebec

    34.8416, -118.8648

    98% uptime

    183ms
    |
    51ms
    |
    282ms
  • 4.28.50.254

    Level 3 Parent, LLC

    AS3356

    Leesburg

    39.1157, -77.5636

    96% uptime

    121ms
    |
    0ms
    |
    44ms
  • 15.204.177.152

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    96% uptime

    90ms
    |
    1ms
    |
    120ms
  • 15.204.177.154

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    96% uptime

    92ms
    |
    0ms
    |
    120ms
  • 15.204.199.30

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    90ms
    |
    0ms
    |
    120ms
  • 15.204.218.41

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    91ms
    |
    1ms
    |
    116ms
  • 15.204.231.78

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    91ms
    |
    1ms
    |
    108ms
  • 15.204.233.167

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    90ms
    |
    1ms
    |
    121ms
  • 15.204.245.78

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    90ms
    |
    1ms
    |
    120ms
  • 15.204.249.240

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    98% uptime

    91ms
    |
    1ms
    |
    118ms
  • 23.132.172.1

    Network Gibbon LLC

    AS36832

    Leesburg

    39.1157, -77.5636

    99% uptime

    95ms
    |
    3ms
    |
    126ms
  • 38.32.161.253

    Cogent Communications, LLC

    AS174

    Leesburg

    39.1157, -77.5636

    98% uptime

    113ms
    |
    4ms
    |
    136ms
  • 40.160.27.129

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    90ms
    |
    0ms
    |
    113ms
  • 40.160.52.120

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    98% uptime

    90ms
    |
    1ms
    |
    53ms
  • 45.59.171.246

    AME Hosting LLC

    AS399244

    Leesburg

    39.1157, -77.5636

    100% uptime

    96ms
    |
    3ms
    |
    22ms
  • 51.81.33.146

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    91ms
    |
    0ms
    |
    121ms
  • 51.81.59.240

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    89ms
    |
    1ms
    |
    104ms
  • 51.81.82.69

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    91ms
    |
    0ms
    |
    120ms
  • 51.81.83.78

    OVH SAS

    AS16276

    Leesburg

    39.1157, -77.5636

    100% uptime

    90ms
    |
    1ms
    |
    118ms
  • 64.18.205.228

    Iland Internet Solutions Corporation

    AS14127

    Leesburg

    39.1157, -77.5636

    100% uptime

    89ms
    |
    3ms
    |
    85ms
  • 64.18.219.164

    Iland Internet Solutions Corporation

    AS14127

    Leesburg

    39.1157, -77.5636

    98% uptime

    90ms
    |
    2ms
    |
    100ms
  • 64.125.226.39

    Zayo Bandwidth

    AS6461

    Leesburg

    39.1157, -77.5636

    100% uptime

    90ms
    |
    3ms
    |
    100ms
  • 66.150.113.17

    Unitas Global

    AS10913

    Leesburg

    39.1157, -77.5636

    98% uptime

    92ms
    |
    2ms
    |
    27ms
  • 66.154.126.140

    MULTACOM CORPORATION

    AS35916

    Leesburg

    39.1157, -77.5636

    100% uptime

    107ms
    |
    5ms
    |
    41ms
  • 72.15.242.153

    Flexential Colorado Corp.

    AS13649

    Leesburg

    39.1157, -77.5636

    100% uptime

    110ms
    |
    4ms
    |
    110ms
  • 72.15.242.154

    Flexential Colorado Corp.

    AS13649

    Leesburg

    39.1157, -77.5636

    98% uptime

    112ms
    |
    9ms
    |
    95ms
  • 72.15.242.158

    Flexential Colorado Corp.

    AS13649

    Leesburg

    39.1157, -77.5636

    100% uptime

    112ms
    |
    6ms
    |
    98ms
  • 72.15.243.52

    Flexential Colorado Corp.

    AS13649

    Leesburg

    39.1157, -77.5636

    96% uptime

    110ms
    |
    0ms
    |
    90ms
  • 72.15.243.53

    Flexential Colorado Corp.

    AS13649

    Leesburg

    39.1157, -77.5636

    99% uptime

    110ms
    |
    13ms
    |
    96ms
  • 104.244.14.201

    Farsight Security, Inc

    AS393667

    Leesburg

    39.1157, -77.5636

    100% uptime

    90ms
    |
    1ms
    |
    114ms
  • 107.180.238.3

    New Dream Network, LLC

    AS26347

    Leesburg

    39.1157, -77.5636

    96% uptime

    90ms
    |
    2ms
    |
    54ms
  • 125.253.67.145

    SECURED SERVERS LLC

    AS19437

    Leesburg

    39.1157, -77.5636

    99% uptime

    96ms
    |
    8ms
    |
    90ms