DNS Servers

United States of America 4498 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

  • 64.113.7.94

    Northwest Open Access Network

    AS16713

    Tri-Cities

    46.2454, -119.1962

    100% uptime

    143ms
    |
    4ms
    |
    112ms
  • 68.116.4.242

    Charter Communications LLC

    AS20115

    Tri-Cities

    46.2454, -119.1962

    99% uptime

    173ms
    |
    6ms
    |
    94ms
  • 24.192.248.190

    WideOpenWest Finance LLC

    AS12083

    Troy

    42.6056, -83.1499

    100% uptime

    122ms
    |
    5ms
    |
    194ms
  • 69.14.26.42

    WideOpenWest Finance LLC

    AS12083

    Troy

    42.6056, -83.1499

    97% uptime

    120ms
    |
    2ms
    |
    209ms
  • 75.144.94.110

    Comcast Cable Communications, LLC

    AS7922

    Troy

    42.6056, -83.1499

    100% uptime

    116ms
    |
    1ms
    |
    221ms
  • 75.111.82.184

    Optimum

    AS19108

    Truckee

    39.3280, -120.1833

    99% uptime

    180ms
    |
    2ms
    |
    244ms
  • 69.218.210.147

    AT&T Enterprises, LLC

    AS7018

    Tucker

    33.8546, -84.2171

    100% uptime

    119ms
    |
    7ms
    |
    79ms
  • 162.230.157.161

    AT&T Enterprises, LLC

    AS7018

    Tucker

    33.8546, -84.2171

    99% uptime

    120ms
    |
    1ms
    |
    145ms
  • 38.72.152.74

    Cogent Communications, LLC

    AS174

    Tukwila

    47.4740, -122.2610

    100% uptime

    281ms
    |
    2ms
    |
    198ms
  • 4.4.21.235

    Level 3 Parent, LLC

    AS3356

    Tulsa

    36.1540, -95.9928

    99% uptime

    125ms
    |
    2ms
    |
    151ms
  • 12.50.224.114

    AT&T Enterprises, LLC

    AS7018

    Tulsa

    36.1540, -95.9928

    99% uptime

    130ms
    |
    2ms
    |
    176ms
  • 64.207.249.106

    Cox Communications Inc.

    AS22773

    Tulsa

    36.1540, -95.9928

    100% uptime

    126ms
    |
    0ms
    |
    206ms
  • 68.15.200.101

    Cox Communications Inc.

    AS22773

    Tulsa

    36.1540, -95.9928

    100% uptime

    136ms
    |
    2ms
    |
    254ms
  • 98.184.86.36

    Cox Communications Inc.

    AS22773

    Tulsa

    36.1540, -95.9928

    100% uptime

    128ms
    |
    4ms
    |
    204ms
  • 98.184.86.238

    Cox Communications Inc.

    AS22773

    Tulsa

    36.1540, -95.9928

    98% uptime

    128ms
    |
    1ms
    |
    233ms
  • 184.180.94.249

    Cox Communications Inc.

    AS22773

    Tulsa

    36.1540, -95.9928

    97% uptime

    137ms
    |
    6ms
    |
    174ms
  • 173.235.105.212

    C Spire Fiber

    AS11272

    Tupelo

    34.2581, -88.7046

    100% uptime

    114ms
    |
    5ms
    |
    188ms
  • 68.63.97.235

    Comcast Cable Communications, LLC

    AS7922

    Tuscaloosa

    33.2098, -87.5692

    100% uptime

    135ms
    |
    2ms
    |
    284ms
  • 96.18.102.221

    CABLE ONE, INC.

    AS11492

    Twin Falls

    42.5630, -114.4609

    100% uptime

    184ms
    |
    2ms
    |
    146ms
  • 96.18.107.31

    CABLE ONE, INC.

    AS11492

    Twin Falls

    42.5630, -114.4609

    100% uptime

    184ms
    |
    3ms
    |
    146ms
  • 173.47.7.211

    CABLE ONE, INC.

    AS11492

    Twin Falls

    42.5630, -114.4609

    100% uptime

    178ms
    |
    13ms
    |
    137ms
  • 199.201.93.13

    WindWave Communications

    AS36222

    Umatilla

    45.9173, -119.3425

    99% uptime

    146ms
    |
    5ms
    |
    79ms
  • 72.68.72.117

    Verizon Business

    AS701

    Union City

    40.7796, -74.0238

    100% uptime

    99ms
    |
    2ms
    |
    6ms
  • 150.221.51.226

    Charter Communications Inc

    AS11351

    Utica

    43.1009, -75.2327

    100% uptime

    105ms
    |
    3ms
    |
    115ms
  • 96.74.70.109

    Comcast Cable Communications, LLC

    AS7922

    Vallejo

    38.1041, -122.2566

    100% uptime

    176ms
    |
    6ms
    |
    284ms
  • 63.246.227.222

    Texas CellNet, Inc.

    AS46452

    Van

    32.5249, -95.6372

    99% uptime

    115ms
    |
    0ms
    |
    164ms
  • 63.246.237.70

    Texas CellNet, Inc.

    AS46452

    Van

    32.5249, -95.6372

    100% uptime

    116ms
    |
    0ms
    |
    158ms
  • 75.164.247.78

    CenturyLink Communications, LLC

    AS209

    Vancouver

    45.6387, -122.6615

    100% uptime

    159ms
    |
    1ms
    |
    193ms
  • 96.75.80.225

    Comcast Cable Communications, LLC

    AS7922

    Vero Beach

    27.6386, -80.3973

    97% uptime

    144ms
    |
    3ms
    |
    318ms
  • 74.192.73.126

    Optimum

    AS19108

    Victoria

    28.8053, -97.0036

    100% uptime

    148ms
    |
    3ms
    |
    236ms
  • 208.180.235.22

    Optimum

    AS19108

    Victoria

    28.8053, -97.0036

    98% uptime

    148ms
    |
    15ms
    |
    263ms
  • 47.141.43.141

    Frontier Communications of America, Inc.

    AS5650

    Victorville

    34.5361, -117.2912

    98% uptime

    169ms
    |
    1ms
    |
    314ms
  • 167.142.190.107

    Aureon Network Services

    AS5056

    Villisca

    40.9297, -94.9761

    100% uptime

    119ms
    |
    3ms
    |
    177ms
  • 130.44.53.143

    Summit Broadband

    AS23314

    Vineyards

    26.2237, -81.7280

    100% uptime

    118ms
    |
    2ms
    |
    22ms
  • 47.253.62.38

    Alibaba (US) Technology Co., Ltd.

    AS45102

    Virginia Beach

    36.8529, -75.9780

    100% uptime

    100ms
    |
    2ms
    |
    41ms
  • 24.155.0.253

    Grande Communications Networks, LLC

    AS7459

    Waco

    31.5493, -97.1467

    100% uptime

    148ms
    |
    6ms
    |
    161ms
  • 199.249.190.30

    Greenville County Library System

    AS393723

    Wade Hampton

    34.9037, -82.3332

    100% uptime

    114ms
    |
    3ms
    |
    153ms
  • 66.33.17.4

    CityLink

    AS47046

    Wadsworth

    41.0256, -81.7298

    99% uptime

    96ms
    |
    0ms
    |
    169ms
  • 40.134.246.138

    Windstream Communications LLC

    AS7029

    Wahoo

    41.2114, -96.6203

    99% uptime

    129ms
    |
    6ms
    |
    187ms
  • 45.37.57.63

    Charter Communications Inc

    AS11426

    Wake Forest

    35.9799, -78.5097

    98% uptime

    129ms
    |
    6ms
    |
    124ms
  • 75.183.213.246

    Charter Communications Inc

    AS11426

    Wake Forest

    35.9799, -78.5097

    100% uptime

    129ms
    |
    5ms
    |
    56ms
  • 64.185.117.132

    Pocketinet Communications, Inc

    AS23265

    Walla Walla

    46.0646, -118.3430

    97% uptime

    146ms
    |
    3ms
    |
    183ms
  • 137.83.22.219

    Point5 Managed Services, LLC

    AS13837

    Waltham

    42.3765, -71.2356

    100% uptime

    96ms
    |
    3ms
    |
    46ms
  • 154.39.2.90

    Charles River Operation

    AS64249

    Waltham

    42.3765, -71.2356

    100% uptime

    96ms
    |
    0ms
    |
    149ms
  • 50.217.43.230

    Comcast Cable Communications, LLC

    AS7922

    Warren

    42.4904, -83.0130

    100% uptime

    108ms
    |
    1ms
    |
    204ms
  • 68.36.11.215

    Comcast Cable Communications, LLC

    AS7922

    Warren

    42.4904, -83.0130

    100% uptime

    117ms
    |
    1ms
    |
    176ms
  • 4.8.2.90

    Level 3 Parent, LLC

    AS3356

    Warrensburg

    38.7628, -93.7361

    100% uptime

    125ms
    |
    1ms
    |
    214ms
  • 4.8.2.95

    Level 3 Parent, LLC

    AS3356

    Warrensburg

    38.7628, -93.7361

    98% uptime

    123ms
    |
    1ms
    |
    223ms
  • 24.103.189.157

    Charter Communications Inc

    AS11351

    Warrensburg

    43.4967, -73.7762

    100% uptime

    102ms
    |
    1ms
    |
    176ms
  • 15.204.192.231

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    92ms
    |
    0ms
    |
    109ms
  • 15.204.199.30

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    0ms
    |
    120ms
  • 15.204.204.27

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    98% uptime

    91ms
    |
    0ms
    |
    30ms
  • 15.204.209.89

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    0ms
    |
    51ms
  • 15.204.224.77

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    0ms
    |
    120ms
  • 15.204.224.91

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    0ms
    |
    121ms
  • 15.204.231.78

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    99% uptime

    93ms
    |
    0ms
    |
    107ms
  • 15.204.233.167

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    0ms
    |
    120ms
  • 15.204.245.78

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    92ms
    |
    0ms
    |
    120ms
  • 15.204.249.240

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    92ms
    |
    1ms
    |
    119ms
  • 40.160.27.129

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    1ms
    |
    131ms
  • 47.51.134.12

    Charter Communications LLC

    AS20115

    Warrenton

    46.1651, -123.9238

    100% uptime

    175ms
    |
    2ms
    |
    80ms
  • 51.81.30.38

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    0ms
    |
    70ms
  • 51.81.33.146

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    99% uptime

    91ms
    |
    0ms
    |
    120ms
  • 51.81.35.7

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    99% uptime

    91ms
    |
    0ms
    |
    120ms
  • 51.81.83.78

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    1ms
    |
    124ms
  • 51.81.84.68

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    91ms
    |
    0ms
    |
    121ms
  • 51.81.109.203

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    92ms
    |
    0ms
    |
    41ms
  • 75.150.56.21

    Comcast Cable Communications, LLC

    AS7922

    Warrenton

    38.7135, -77.7953

    100% uptime

    145ms
    |
    3ms
    |
    152ms
  • 98.244.105.223

    Comcast Cable Communications, LLC

    AS7922

    Warrenton

    38.7135, -77.7953

    96% uptime

    120ms
    |
    3ms
    |
    310ms
  • 135.148.148.7

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    92ms
    |
    0ms
    |
    84ms
  • 147.135.68.99

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    99% uptime

    92ms
    |
    0ms
    |
    104ms
  • 147.135.79.194

    OVH SAS

    AS16276

    Warrenton

    38.7135, -77.7953

    100% uptime

    92ms
    |
    0ms
    |
    134ms
  • 198.135.180.162

    Microsula, Inc.

    AS399464

    Warrenton

    38.7135, -77.7953

    100% uptime

    111ms
    |
    1ms
    |
    193ms
  • 96.70.52.169

    Comcast Cable Communications, LLC

    AS7922

    Warsaw

    41.2381, -85.8530

    100% uptime

    131ms
    |
    3ms
    |
    318ms
  • 4.59.154.242

    Level 3 Parent, LLC

    AS3356

    Washington

    38.8951, -77.0364

    100% uptime

    113ms
    |
    3ms
    |
    104ms
  • 15.204.226.28

    OVH SAS

    AS16276

    Washington

    38.8951, -77.0364

    100% uptime

    92ms
    |
    0ms
    |
    119ms
  • 15.204.226.93

    OVH SAS

    AS16276

    Washington

    38.8951, -77.0364

    99% uptime

    92ms
    |
    0ms
    |
    119ms
  • 20.85.230.145

    Microsoft Corporation

    AS8075

    Washington

    38.7135, -78.1594

    100% uptime

    95ms
    |
    1ms
    |
    124ms
  • 20.231.99.82

    Microsoft Corporation

    AS8075

    Washington

    38.7135, -78.1594

    100% uptime

    95ms
    |
    1ms
    |
    129ms
  • 38.54.7.71

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    17ms
  • 38.54.7.72

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    17ms
  • 38.54.7.73

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    16ms
  • 38.54.7.74

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    14ms
  • 38.54.7.75

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    11ms
  • 38.54.7.76

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    19ms
  • 38.54.7.77

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    18ms
  • 38.54.7.78

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    99ms
    |
    4ms
    |
    13ms
  • 38.54.7.79

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    18ms
  • 38.54.7.80

    Kaopu Cloud HK Limited

    AS138915

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    2ms
    |
    10ms
  • 50.144.147.130

    Comcast Cable Communications, LLC

    AS7922

    Washington

    38.8951, -77.0364

    100% uptime

    104ms
    |
    7ms
    |
    128ms
  • 50.202.159.15

    CMR LLC

    AS22928

    Washington

    38.8951, -77.0364

    100% uptime

    101ms
    |
    1ms
    |
    150ms
  • 50.238.164.195

    Comcast Cable Communications, LLC

    AS7922

    Washington

    38.8951, -77.0364

    100% uptime

    105ms
    |
    6ms
    |
    22ms
  • 51.81.33.140

    OVH SAS

    AS16276

    Washington

    38.8951, -77.0364

    100% uptime

    90ms
    |
    0ms
    |
    121ms
  • 52.117.69.101

    IBM Cloud

    AS36351

    Washington

    38.8951, -77.0364

    100% uptime

    94ms
    |
    3ms
    |
    20ms
  • 52.188.17.229

    Microsoft Corporation

    AS8075

    Washington

    38.7135, -78.1594

    100% uptime

    95ms
    |
    1ms
    |
    106ms
  • 57.152.18.228

    Microsoft Corporation

    AS8075

    Washington

    38.7135, -78.1594

    99% uptime

    92ms
    |
    1ms
    |
    124ms
  • 65.213.252.164

    Verizon Business

    AS701

    Washington

    38.8951, -77.0364

    100% uptime

    103ms
    |
    1ms
    |
    81ms
  • 67.43.126.69

    Wisper ISP, LLC

    AS22926

    Washington

    38.5581, -91.0121

    96% uptime

    105ms
    |
    0ms
    |
    144ms
  • 69.137.232.140

    Comcast Cable Communications, LLC

    AS7922

    Washington

    38.8951, -77.0364

    99% uptime

    110ms
    |
    1ms
    |
    240ms
  • 104.45.169.171

    Microsoft Corporation

    AS8075

    Washington

    38.7135, -78.1594

    100% uptime

    95ms
    |
    1ms
    |
    34ms