DNS Servers

United States of America 5520 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

  • 50.173.85.150

    Comcast Cable Communications, LLC

    AS7922

    Shiloh

    39.9781, -76.7972

    100% uptime

    120ms
    |
    1ms
    |
    94ms
  • 12.231.148.141

    AT&T Enterprises, LLC

    AS7018

    Shingle Springs

    38.6657, -120.9261

    100% uptime

    164ms
    |
    1ms
    |
    118ms
  • 24.245.192.176

    CABLE ONE, INC.

    AS11492

    Show Low

    34.2542, -110.0298

    100% uptime

    176ms
    |
    4ms
    |
    146ms
  • 67.61.40.98

    CABLE ONE, INC.

    AS11492

    Show Low

    34.2542, -110.0298

    83% uptime

    155ms
    |
    2ms
    |
    247ms
  • 24.142.75.90

    CABLE ONE, INC.

    AS11492

    Shreveport

    32.5251, -93.7502

    98% uptime

    152ms
    |
    7ms
    |
    107ms
  • 45.73.138.236

    Shrewsbury Electric and Cable Operations

    AS26292

    Shrewsbury

    42.2959, -71.7129

    100% uptime

    99ms
    |
    0ms
    |
    130ms
  • 64.30.69.90

    Shrewsbury Electric and Cable Operations

    AS26292

    Shrewsbury

    42.2959, -71.7129

    100% uptime

    102ms
    |
    2ms
    |
    131ms
  • 216.195.23.183

    Shrewsbury Electric and Cable Operations

    AS26292

    Shrewsbury

    42.2959, -71.7129

    98% uptime

    101ms
    |
    1ms
    |
    236ms
  • 69.248.139.166

    Comcast Cable Communications, LLC

    AS7922

    Sicklerville

    39.7173, -74.9693

    100% uptime

    107ms
    |
    2ms
    |
    34ms
  • 66.196.60.74

    Nedelco Inc.

    AS13765

    Sidney

    41.1428, -102.9780

    98% uptime

    139ms
    |
    8ms
    |
    211ms
  • 216.228.41.165

    Mid-Rivers Telephone Cooperative

    AS11961

    Sidney

    47.7167, -104.1563

    96% uptime

    154ms
    |
    2ms
    |
    323ms
  • 68.188.68.154

    Charter Communications LLC

    AS20115

    Sikeston

    36.8767, -89.5879

    97% uptime

    142ms
    |
    3ms
    |
    327ms
  • 12.9.250.168

    AT&T Enterprises, LLC

    AS7018

    Simi Valley

    34.2694, -118.7815

    100% uptime

    164ms
    |
    7ms
    |
    109ms
  • 98.152.170.246

    Charter Communications Inc

    AS20001

    Simi Valley

    34.2694, -118.7815

    96% uptime

    180ms
    |
    2ms
    |
    62ms
  • 24.119.84.9

    CABLE ONE, INC.

    AS11492

    Sioux City

    42.5000, -96.4003

    100% uptime

    172ms
    |
    1ms
    |
    105ms
  • 174.126.63.48

    CABLE ONE, INC.

    AS11492

    Sioux City

    42.5000, -96.4003

    98% uptime

    174ms
    |
    8ms
    |
    112ms
  • 76.73.203.75

    Clarity Telecom LLC

    AS20412

    Sioux Falls

    43.5437, -96.7280

    100% uptime

    135ms
    |
    3ms
    |
    240ms
  • 208.53.207.30

    SDN Communications

    AS13576

    Sioux Falls

    43.5437, -96.7280

    100% uptime

    112ms
    |
    1ms
    |
    33ms
  • 216.254.246.74

    Clarity Telecom LLC

    AS20412

    Sioux Falls

    43.5437, -96.7280

    100% uptime

    134ms
    |
    5ms
    |
    177ms
  • 73.73.168.183

    Comcast Cable Communications, LLC

    AS7922

    Skokie

    42.0334, -87.7334

    100% uptime

    128ms
    |
    2ms
    |
    274ms
  • 64.190.35.244

    PhireLink

    AS400911

    Slidell

    30.2752, -89.7812

    100% uptime

    126ms
    |
    2ms
    |
    110ms
  • 97.89.201.138

    Charter Communications LLC

    AS20115

    Slidell

    30.2752, -89.7812

    100% uptime

    153ms
    |
    3ms
    |
    137ms
  • 130.250.252.211

    VELOCITY, A MANAGED SERVICES COMPANY

    AS62728

    Smith Mills

    41.6390, -70.9912

    100% uptime

    99ms
    |
    11ms
    |
    117ms
  • 64.253.208.26

    DTC Communications, Inc.

    AS12261

    Smithville

    35.9606, -85.8141

    100% uptime

    107ms
    |
    5ms
    |
    28ms
  • 184.80.245.133

    Windstream Communications LLC

    AS7029

    Smithville

    34.4668, -94.6438

    98% uptime

    127ms
    |
    1ms
    |
    204ms
  • 50.84.191.248

    Charter Communications Inc

    AS11427

    Socorro

    31.6546, -106.3033

    100% uptime

    150ms
    |
    1ms
    |
    203ms
  • 75.69.45.159

    Comcast Cable Communications, LLC

    AS7922

    South Deerfield

    42.4773, -72.6079

    100% uptime

    110ms
    |
    1ms
    |
    161ms
  • 50.218.185.234

    Comcast Cable Communications, LLC

    AS7922

    Southfield

    42.4734, -83.2219

    100% uptime

    108ms
    |
    8ms
    |
    172ms
  • 173.243.165.74

    FirstLight Networks, LLC

    AS13536

    South Glens Falls

    43.2992, -73.6351

    97% uptime

    89ms
    |
    1ms
    |
    141ms
  • 68.190.186.109

    Charter Communications LLC

    AS20115

    South Lake Tahoe

    38.9332, -119.9844

    100% uptime

    180ms
    |
    2ms
    |
    192ms
  • 50.144.253.211

    Comcast Cable Communications, LLC

    AS7922

    South Laurel

    39.0698, -76.8503

    100% uptime

    106ms
    |
    1ms
    |
    132ms
  • 64.222.100.52

    Fidium

    AS13977

    South Portland

    43.6415, -70.2409

    100% uptime

    102ms
    |
    1ms
    |
    130ms
  • 104.219.96.79

    ECFiber

    AS55145

    South Royalton

    43.8209, -72.5212

    100% uptime

    97ms
    |
    1ms
    |
    148ms
  • 158.51.6.14

    Gallatin Wireless Internet, LLC

    AS397324

    Spearfish

    44.4908, -103.8594

    83% uptime

    146ms
    |
    9ms
    |
    298ms
  • 138.43.120.193

    Great Lakes Communication Corp.

    AS63436

    Spencer

    43.1414, -95.1444

    100% uptime

    124ms
    |
    0ms
    |
    38ms
  • 192.124.224.34

    Great Lakes Communication Corp.

    AS63436

    Spencer

    43.1414, -95.1444

    98% uptime

    128ms
    |
    3ms
    |
    36ms
  • 50.147.222.38

    Comcast Cable Communications, LLC

    AS7922

    Spokane

    47.6597, -117.4291

    100% uptime

    161ms
    |
    91ms
    |
    186ms
  • 50.251.238.130

    Comcast Cable Communications, LLC

    AS7922

    Spokane

    47.6597, -117.4291

    98% uptime

    178ms
    |
    21ms
    |
    118ms
  • 64.85.1.5

    Dogear/Packet Partners

    AS20271

    Spokane

    47.6597, -117.4291

    92% uptime

    168ms
    |
    7ms
    |
    328ms
  • 64.85.1.27

    Dogear/Packet Partners

    AS20271

    Spokane

    47.6597, -117.4291

    92% uptime

    184ms
    |
    14ms
    |
    368ms
  • 67.168.37.205

    Comcast Cable Communications, LLC

    AS7922

    Spokane

    47.6597, -117.4291

    97% uptime

    172ms
    |
    3ms
    |
    352ms
  • 73.254.65.115

    Comcast Cable Communications, LLC

    AS7922

    Spokane

    47.6597, -117.4291

    92% uptime

    168ms
    |
    2ms
    |
    239ms
  • 104.36.87.76

    Redoubt Networks

    AS400304

    Spokane

    47.6597, -117.4291

    98% uptime

    165ms
    |
    7ms
    |
    198ms
  • 159.112.80.58

    TDS TELECOM

    AS4181

    Spokane

    47.6597, -117.4291

    100% uptime

    165ms
    |
    1ms
    |
    123ms
  • 76.147.150.143

    Comcast Cable Communications, LLC

    AS7922

    Spokane Valley

    47.6732, -117.2394

    100% uptime

    178ms
    |
    2ms
    |
    348ms
  • 208.81.158.203

    WIRED OR WIRELESS INC.

    AS18913

    Spokane Valley

    47.6732, -117.2394

    100% uptime

    154ms
    |
    6ms
    |
    271ms
  • 38.134.40.76

    Snaju Development

    AS399646

    Spring

    30.0799, -95.4172

    100% uptime

    139ms
    |
    0ms
    |
    242ms
  • 38.134.40.147

    Snaju Development

    AS399646

    Spring

    30.0799, -95.4172

    100% uptime

    138ms
    |
    0ms
    |
    109ms
  • 104.167.242.20

    MysticDev LLC

    AS26286

    Spring

    30.0799, -95.4172

    92% uptime

    121ms
    |
    0ms
    |
    168ms
  • 165.140.122.11

    Circuit Holdings

    AS400034

    Springdale

    36.1867, -94.1288

    98% uptime

    140ms
    |
    2ms
    |
    116ms
  • 167.224.195.166

    OzarksGo, LLC

    AS395662

    Springdale

    36.1867, -94.1288

    100% uptime

    149ms
    |
    8ms
    |
    107ms
  • 70.92.120.27

    Charter Communications Inc

    AS10796

    Springfield

    39.9242, -83.8088

    100% uptime

    124ms
    |
    3ms
    |
    94ms
  • 74.84.93.90

    Mediacom Communications Corp

    AS30036

    Springfield

    37.2153, -93.2982

    97% uptime

    133ms
    |
    4ms
    |
    213ms
  • 74.167.80.233

    Brightspeed

    AS19901

    Springfield

    37.2153, -93.2982

    100% uptime

    130ms
    |
    0ms
    |
    202ms
  • 192.119.193.166

    Mediacom Communications Corp

    AS30036

    Springfield

    37.2153, -93.2982

    100% uptime

    132ms
    |
    3ms
    |
    75ms
  • 192.24.124.66

    CABLE ONE, INC.

    AS11492

    Springhill

    33.0060, -93.4668

    100% uptime

    142ms
    |
    1ms
    |
    185ms
  • 50.173.121.186

    Comcast Cable Communications, LLC

    AS7922

    Spring Ridge

    40.3529, -75.9899

    100% uptime

    121ms
    |
    0ms
    |
    142ms
  • 162.221.9.59

    Connecticut Education Network

    AS22742

    Stafford Springs

    41.9543, -72.3023

    100% uptime

    97ms
    |
    0ms
    |
    122ms
  • 69.117.250.175

    Cablevision Systems Corp.

    AS6128

    Stamford

    41.0534, -73.5387

    98% uptime

    96ms
    |
    1ms
    |
    138ms
  • 108.163.113.233

    Dakota Carrier Network

    AS26794

    Stanley

    48.3172, -102.3905

    100% uptime

    144ms
    |
    4ms
    |
    58ms
  • 69.36.54.188

    Point Broadband Fiber Holding, LLC

    AS19310

    Stanton

    43.2925, -85.0814

    97% uptime

    117ms
    |
    2ms
    |
    67ms
  • 192.52.168.5

    Wes-Tex Telecommunications LTD

    AS30072

    Stanton

    32.1293, -101.7885

    98% uptime

    138ms
    |
    3ms
    |
    244ms
  • 167.150.4.98

    Fatbeam, LLC

    AS55039

    Star

    43.6921, -116.4935

    97% uptime

    137ms
    |
    3ms
    |
    275ms
  • 104.232.184.65

    C Spire Fiber

    AS11272

    Starkville

    33.4505, -88.8196

    100% uptime

    111ms
    |
    1ms
    |
    88ms
  • 107.190.184.215

    Silver Star Communications

    AS26223

    Star Valley Ranch

    42.9714, -110.9556

    83% uptime

    148ms
    |
    1ms
    |
    360ms
  • 24.213.123.108

    Vyve Broadband

    AS35986

    Statesboro

    32.4488, -81.7832

    92% uptime

    128ms
    |
    3ms
    |
    181ms
  • 38.64.30.61

    Ripple Fiber Inc.

    AS400164

    Statesville

    35.7826, -80.8873

    83% uptime

    118ms
    |
    0ms
    |
    150ms
  • 173.95.237.203

    Charter Communications Inc

    AS11426

    Statesville

    35.7826, -80.8873

    97% uptime

    117ms
    |
    7ms
    |
    173ms
  • 67.211.151.81

    LUMOS Networks, Inc.

    AS7795

    Staunton

    38.1499, -79.0732

    100% uptime

    104ms
    |
    0ms
    |
    128ms
  • 67.43.71.78

    Willamette Valley Internet

    AS12044

    Stayton

    44.8007, -122.7945

    100% uptime

    154ms
    |
    1ms
    |
    173ms
  • 24.13.61.211

    Comcast Cable Communications, LLC

    AS7922

    St. Charles

    41.9142, -88.3087

    100% uptime

    122ms
    |
    9ms
    |
    196ms
  • 50.190.95.173

    Comcast Cable Communications, LLC

    AS7922

    Steamboat Springs

    40.4850, -106.8317

    100% uptime

    145ms
    |
    3ms
    |
    193ms
  • 24.49.201.90

    Vyve Broadband

    AS35986

    Stephenville

    32.2207, -98.2023

    100% uptime

    118ms
    |
    1ms
    |
    165ms
  • 156.146.244.36

    United Cooperative Services

    AS1448

    Stephenville

    32.2207, -98.2023

    98% uptime

    132ms
    |
    4ms
    |
    168ms
  • 38.100.4.5

    Cogent Communications, LLC

    AS174

    Sterling

    39.0062, -77.4286

    96% uptime

    103ms
    |
    3ms
    |
    42ms
  • 24.158.20.189

    Charter Communications LLC

    AS20115

    Stevens Point

    44.5236, -89.5746

    100% uptime

    151ms
    |
    7ms
    |
    302ms
  • 24.158.20.190

    Charter Communications LLC

    AS20115

    Stevens Point

    44.5236, -89.5746

    98% uptime

    153ms
    |
    4ms
    |
    299ms
  • 38.65.100.120

    Cogent Communications, LLC

    AS174

    St. Louis

    38.6273, -90.1979

    100% uptime

    115ms
    |
    11ms
    |
    92ms
  • 38.129.158.102

    Cass Cable TV, Inc.

    AS10971

    St. Louis

    38.6273, -90.1979

    83% uptime

    110ms
    |
    1ms
    |
    32ms
  • 66.154.118.103

    CYBERCON, INC.

    AS7393

    St. Louis

    38.6273, -90.1979

    100% uptime

    116ms
    |
    3ms
    |
    158ms
  • 66.171.155.18

    NEXT LEVEL INTERNET, INC.

    AS16582

    St. Louis

    38.6273, -90.1979

    100% uptime

    131ms
    |
    3ms
    |
    162ms
  • 66.232.174.158

    Wisper ISP, LLC

    AS22926

    St. Louis

    38.6273, -90.1979

    100% uptime

    104ms
    |
    0ms
    |
    128ms
  • 68.188.32.90

    Charter Communications LLC

    AS20115

    St. Louis

    38.6273, -90.1979

    92% uptime

    139ms
    |
    2ms
    |
    332ms
  • 69.64.58.255

    velia.net

    AS30083

    St. Louis

    38.6273, -90.1979

    100% uptime

    121ms
    |
    26ms
    |
    96ms
  • 75.36.181.89

    AT&T Enterprises, LLC

    AS7018

    St. Louis

    38.6445, -90.2544

    100% uptime

    118ms
    |
    8ms
    |
    30ms
  • 85.239.247.194

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    119ms
    |
    2ms
    |
    92ms
  • 85.239.247.195

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    120ms
    |
    2ms
    |
    92ms
  • 85.239.247.196

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    115ms
    |
    2ms
    |
    95ms
  • 85.239.247.197

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    119ms
    |
    2ms
    |
    87ms
  • 85.239.247.198

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    116ms
    |
    2ms
    |
    95ms
  • 85.239.247.199

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    2ms
    |
    90ms
  • 85.239.247.200

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    119ms
    |
    2ms
    |
    86ms
  • 85.239.247.219

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    120ms
    |
    2ms
    |
    91ms
  • 92.118.59.242

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    117ms
    |
    3ms
    |
    150ms
  • 142.214.205.162

    CYBERCON, INC.

    AS7393

    St. Louis

    38.6273, -90.1979

    92% uptime

    116ms
    |
    0ms
    |
    199ms
  • 144.126.128.120

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    116ms
    |
    3ms
    |
    260ms
  • 144.126.130.218

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    98% uptime

    119ms
    |
    8ms
    |
    251ms
  • 144.126.158.177

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    120ms
    |
    9ms
    |
    202ms
  • 147.93.130.20

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    100% uptime

    119ms
    |
    1ms
    |
    142ms
  • 147.93.135.203

    Contabo Inc.

    AS40021

    St. Louis

    38.6273, -90.1979

    92% uptime

    119ms
    |
    3ms
    |
    227ms