DNS Servers

United States of America 4673 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

  • 67.61.231.100

    CABLE ONE, INC.

    AS11492

    Ada

    34.7745, -96.6783

    100% uptime

    152ms
    |
    2ms
    |
    82ms
  • 199.58.99.146

    Alyrica Networks Inc.

    AS25961

    Adair Village

    44.6707, -123.2179

    94% uptime

    157ms
    |
    5ms
    |
    306ms
  • 204.194.217.206

    North Texas Fiber, Inc

    AS397161

    Addison

    32.9618, -96.8292

    100% uptime

    116ms
    |
    0ms
    |
    136ms
  • 12.26.241.82

    AT&T Enterprises, LLC

    AS7018

    Agoura Hills

    34.1364, -118.7745

    99% uptime

    168ms
    |
    2ms
    |
    113ms
  • 71.72.38.99

    Charter Communications Inc

    AS10796

    Akron

    41.0814, -81.5190

    98% uptime

    133ms
    |
    2ms
    |
    105ms
  • 64.246.133.148

    INOC, LLC

    AS22302

    Albany

    42.6526, -73.7562

    99% uptime

    96ms
    |
    1ms
    |
    17ms
  • 66.147.225.3

    HostRocket.com, Inc.

    AS23535

    Albany

    42.6526, -73.7562

    100% uptime

    90ms
    |
    0ms
    |
    51ms
  • 199.101.50.22

    HostRocket.com, Inc.

    AS23535

    Albany

    42.6526, -73.7562

    100% uptime

    91ms
    |
    0ms
    |
    52ms
  • 199.101.50.23

    HostRocket.com, Inc.

    AS23535

    Albany

    42.6526, -73.7562

    100% uptime

    91ms
    |
    8ms
    |
    55ms
  • 199.101.50.86

    HostRocket.com, Inc.

    AS23535

    Albany

    42.6526, -73.7562

    100% uptime

    91ms
    |
    0ms
    |
    51ms
  • 208.85.1.163

    Turnkey Internet Inc.

    AS40244

    Albany

    42.6526, -73.7562

    100% uptime

    97ms
    |
    0ms
    |
    129ms
  • 216.120.236.68

    HostRocket.com, Inc.

    AS23535

    Albany

    42.6526, -73.7562

    100% uptime

    91ms
    |
    0ms
    |
    49ms
  • 216.120.236.70

    HostRocket.com, Inc.

    AS23535

    Albany

    42.6526, -73.7562

    100% uptime

    91ms
    |
    7ms
    |
    48ms
  • 216.120.236.246

    HostRocket.com, Inc.

    AS23535

    Albany

    42.6526, -73.7562

    98% uptime

    91ms
    |
    2ms
    |
    64ms
  • 209.131.227.212

    Jaguar Communications

    AS15011

    Albert Lea

    43.6480, -93.3683

    99% uptime

    125ms
    |
    3ms
    |
    173ms
  • 4.2.192.138

    Level 3 Parent, LLC

    AS3356

    Albuquerque

    35.0845, -106.6511

    100% uptime

    147ms
    |
    1ms
    |
    108ms
  • 23.129.116.6

    Central New Mexico Electric Cooperative, Inc.

    AS400975

    Albuquerque

    35.0845, -106.6511

    100% uptime

    146ms
    |
    3ms
    |
    176ms
  • 65.132.21.195

    CenturyLink Communications, LLC

    AS209

    Albuquerque

    35.0845, -106.6511

    98% uptime

    153ms
    |
    15ms
    |
    154ms
  • 73.26.92.166

    Comcast Cable Communications, LLC

    AS7922

    Albuquerque

    35.0845, -106.6511

    99% uptime

    156ms
    |
    1ms
    |
    320ms
  • 73.228.50.14

    Comcast Cable Communications, LLC

    AS7922

    Albuquerque

    35.0845, -106.6511

    100% uptime

    155ms
    |
    1ms
    |
    294ms
  • 98.249.99.8

    Comcast Cable Communications, LLC

    AS7922

    Albuquerque

    35.0845, -106.6511

    100% uptime

    154ms
    |
    1ms
    |
    94ms
  • 199.21.74.166

    bigbyte.cc Corp

    AS26974

    Albuquerque

    35.0845, -106.6511

    100% uptime

    127ms
    |
    1ms
    |
    112ms
  • 209.33.82.233

    Optimum

    AS19108

    Alexandria

    31.3113, -92.4451

    99% uptime

    147ms
    |
    2ms
    |
    178ms
  • 148.170.115.68

    Twin Lakes Telephone Cooperative Corporation

    AS19331

    Algood

    36.1959, -85.4486

    94% uptime

    112ms
    |
    0ms
    |
    196ms
  • 38.66.225.140

    Cogent Communications, LLC

    AS174

    Aliceville

    33.1296, -88.1514

    100% uptime

    127ms
    |
    2ms
    |
    180ms
  • 70.119.105.89

    Charter Communications Inc

    AS11427

    Allen

    33.1032, -96.6706

    94% uptime

    138ms
    |
    3ms
    |
    94ms
  • 207.235.148.155

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    98% uptime

    123ms
    |
    2ms
    |
    72ms
  • 207.235.148.156

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    98% uptime

    123ms
    |
    2ms
    |
    73ms
  • 207.235.148.157

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    100% uptime

    123ms
    |
    3ms
    |
    74ms
  • 207.235.148.158

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    100% uptime

    123ms
    |
    2ms
    |
    74ms
  • 207.235.148.159

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    98% uptime

    123ms
    |
    2ms
    |
    75ms
  • 207.235.148.160

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    100% uptime

    122ms
    |
    0ms
    |
    59ms
  • 207.235.148.161

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    98% uptime

    123ms
    |
    2ms
    |
    72ms
  • 207.235.148.162

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    99% uptime

    123ms
    |
    2ms
    |
    74ms
  • 207.235.148.210

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    100% uptime

    123ms
    |
    2ms
    |
    128ms
  • 207.235.148.211

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    87% uptime

    123ms
    |
    1ms
    |
    144ms
  • 207.235.148.212

    Zayo Bandwidth

    AS6461

    Allen

    33.1032, -96.6706

    100% uptime

    123ms
    |
    2ms
    |
    144ms
  • 198.167.241.183

    AcenTek

    AS11904

    Allendale

    42.9723, -85.9536

    100% uptime

    104ms
    |
    0ms
    |
    70ms
  • 50.4.8.33

    WideOpenWest Finance LLC

    AS12083

    Allen Park

    42.2575, -83.2110

    99% uptime

    125ms
    |
    2ms
    |
    163ms
  • 24.35.106.135

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    105ms
    |
    1ms
    |
    180ms
  • 24.102.245.46

    PenTeleData Inc.

    AS3737

    Allentown

    40.6084, -75.4902

    99% uptime

    96ms
    |
    3ms
    |
    20ms
  • 24.115.196.26

    PenTeleData Inc.

    AS3737

    Allentown

    40.6084, -75.4902

    100% uptime

    97ms
    |
    2ms
    |
    150ms
  • 64.121.16.24

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    105ms
    |
    2ms
    |
    170ms
  • 64.121.33.69

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    93% uptime

    109ms
    |
    3ms
    |
    180ms
  • 64.121.38.71

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    98% uptime

    109ms
    |
    2ms
    |
    170ms
  • 64.121.50.223

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    107ms
    |
    3ms
    |
    168ms
  • 64.121.104.222

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    108ms
    |
    3ms
    |
    272ms
  • 64.121.118.139

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    105ms
    |
    2ms
    |
    118ms
  • 66.23.199.88

    Redoubt Networks

    AS400304

    Allentown

    40.6084, -75.4902

    100% uptime

    85ms
    |
    0ms
    |
    44ms
  • 98.110.17.3

    Verizon Business

    AS701

    Allentown

    40.1779, -74.5835

    100% uptime

    102ms
    |
    1ms
    |
    164ms
  • 131.106.10.71

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    107ms
    |
    2ms
    |
    182ms
  • 131.106.34.93

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    108ms
    |
    1ms
    |
    161ms
  • 131.106.58.226

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    107ms
    |
    3ms
    |
    168ms
  • 131.106.88.110

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    98% uptime

    107ms
    |
    2ms
    |
    170ms
  • 131.106.240.71

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    100% uptime

    107ms
    |
    2ms
    |
    187ms
  • 168.91.180.168

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    99% uptime

    106ms
    |
    2ms
    |
    180ms
  • 207.172.235.125

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    94% uptime

    113ms
    |
    1ms
    |
    197ms
  • 208.58.53.229

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    99% uptime

    106ms
    |
    1ms
    |
    47ms
  • 209.122.10.203

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    94% uptime

    112ms
    |
    1ms
    |
    183ms
  • 216.164.139.78

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    98% uptime

    118ms
    |
    4ms
    |
    219ms
  • 216.164.168.100

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    99% uptime

    103ms
    |
    0ms
    |
    89ms
  • 216.164.188.214

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    87% uptime

    111ms
    |
    1ms
    |
    215ms
  • 216.164.227.199

    RCN

    AS6079

    Allentown

    40.6084, -75.4902

    93% uptime

    114ms
    |
    2ms
    |
    168ms
  • 24.3.156.176

    Comcast Cable Communications, LLC

    AS7922

    Allison Park

    40.5595, -79.9587

    100% uptime

    130ms
    |
    3ms
    |
    227ms
  • 64.45.189.96

    Alma Telephone Company

    AS397780

    Alma

    39.0953, -93.5452

    100% uptime

    139ms
    |
    20ms
    |
    158ms
  • 64.45.190.237

    Alma Telephone Company

    AS397780

    Alma

    39.0953, -93.5452

    99% uptime

    125ms
    |
    2ms
    |
    65ms
  • 64.45.191.76

    Alma Telephone Company

    AS397780

    Alma

    39.0953, -93.5452

    100% uptime

    127ms
    |
    6ms
    |
    118ms
  • 64.45.191.78

    Alma Telephone Company

    AS397780

    Alma

    39.0953, -93.5452

    100% uptime

    125ms
    |
    7ms
    |
    80ms
  • 64.45.191.112

    Alma Telephone Company

    AS397780

    Alma

    39.0953, -93.5452

    99% uptime

    124ms
    |
    16ms
    |
    77ms
  • 64.45.191.199

    Alma Telephone Company

    AS397780

    Alma

    39.0953, -93.5452

    100% uptime

    136ms
    |
    4ms
    |
    54ms
  • 162.211.152.10

    Sena Wave LLC

    AS29844

    Alta

    40.5888, -111.6380

    100% uptime

    129ms
    |
    9ms
    |
    94ms
  • 24.145.18.41

    Breezeline

    AS11776

    Altoona

    40.5187, -78.3947

    98% uptime

    108ms
    |
    4ms
    |
    204ms
  • 73.187.41.218

    Comcast Cable Communications, LLC

    AS7922

    Altoona

    40.5187, -78.3947

    100% uptime

    138ms
    |
    1ms
    |
    244ms
  • 138.207.168.146

    Breezeline

    AS11776

    Altoona

    40.5187, -78.3947

    100% uptime

    103ms
    |
    1ms
    |
    120ms
  • 207.255.71.157

    Breezeline

    AS11776

    Altoona

    40.5187, -78.3947

    98% uptime

    110ms
    |
    5ms
    |
    49ms
  • 12.153.246.226

    AT&T Enterprises, LLC

    AS7018

    Altus

    34.6381, -99.3340

    99% uptime

    145ms
    |
    1ms
    |
    174ms
  • 217.177.198.56

    CABLE ONE, INC.

    AS11492

    Altus

    34.6381, -99.3340

    100% uptime

    157ms
    |
    1ms
    |
    57ms
  • 67.209.89.172

    Airstream Communications, LLC

    AS11796

    Amery

    45.3069, -92.3621

    98% uptime

    124ms
    |
    1ms
    |
    48ms
  • 64.135.132.14

    GoNetSpeed

    AS46414

    Amherst

    42.3672, -72.5185

    98% uptime

    99ms
    |
    2ms
    |
    55ms
  • 69.4.124.178

    Airstream Communications, LLC

    AS11796

    Amherst

    44.4508, -89.2848

    100% uptime

    126ms
    |
    1ms
    |
    130ms
  • 69.7.43.10

    CSS Integration, Inc.

    AS26792

    Anacortes

    48.5126, -122.6127

    100% uptime

    148ms
    |
    1ms
    |
    165ms
  • 63.110.107.140

    Verizon Business

    AS701

    Anaheim

    33.8353, -117.9145

    100% uptime

    173ms
    |
    2ms
    |
    105ms
  • 172.119.115.52

    Charter Communications Inc

    AS20001

    Anaheim

    33.8353, -117.9145

    100% uptime

    178ms
    |
    2ms
    |
    46ms
  • 128.254.163.1

    Trinity Link LLC

    AS397770

    Anahuac

    29.7730, -94.6827

    100% uptime

    135ms
    |
    1ms
    |
    193ms
  • 24.237.228.76

    GENERAL COMMUNICATION, INC.

    AS8047

    Anchorage

    61.2181, -149.9003

    100% uptime

    181ms
    |
    12ms
    |
    268ms
  • 153.66.5.214

    Space Exploration Technologies Corporation

    AS14593

    Anchorage

    61.2181, -149.9003

    93% uptime

    190ms
    |
    7ms
    |
    102ms
  • 162.250.166.142

    NEW KNOXVILLE TELEPHONE COMPANY

    AS31841

    Anna

    40.3945, -84.1727

    100% uptime

    99ms
    |
    1ms
    |
    127ms
  • 68.134.20.203

    Verizon Business

    AS701

    Annapolis

    38.9786, -76.4918

    100% uptime

    107ms
    |
    1ms
    |
    154ms
  • 68.134.20.206

    Verizon Business

    AS701

    Annapolis

    38.9786, -76.4918

    100% uptime

    107ms
    |
    1ms
    |
    166ms
  • 23.138.113.251

    Nether.Net

    AS267

    Ann Arbor

    42.2776, -83.7409

    99% uptime

    110ms
    |
    1ms
    |
    90ms
  • 23.138.113.254

    Nether.Net

    AS267

    Ann Arbor

    42.2776, -83.7409

    100% uptime

    110ms
    |
    2ms
    |
    83ms
  • 32.143.46.66

    AT&T Enterprises, LLC

    AS7018

    Ann Arbor

    42.2776, -83.7409

    99% uptime

    120ms
    |
    18ms
    |
    114ms
  • 68.55.214.31

    Comcast Cable Communications, LLC

    AS7922

    Ann Arbor

    42.2776, -83.7409

    94% uptime

    130ms
    |
    3ms
    |
    218ms
  • 68.56.148.127

    Comcast Cable Communications, LLC

    AS7922

    Ann Arbor

    42.2776, -83.7409

    100% uptime

    126ms
    |
    2ms
    |
    227ms
  • 208.75.19.62

    SYNERGY BROADBAND

    AS22768

    Ann Arbor

    42.2776, -83.7409

    99% uptime

    100ms
    |
    6ms
    |
    41ms
  • 184.155.107.75

    CABLE ONE, INC.

    AS11492

    Anniston

    33.6598, -85.8316

    99% uptime

    130ms
    |
    1ms
    |
    34ms
  • 98.210.18.106

    Comcast Cable Communications, LLC

    AS7922

    Antioch

    38.0049, -121.8058

    100% uptime

    166ms
    |
    2ms
    |
    283ms
  • 12.227.127.58

    AT&T Enterprises, LLC

    AS7018

    Apex

    35.7326, -78.8503

    94% uptime

    120ms
    |
    0ms
    |
    112ms
  • 12.227.127.59

    AT&T Enterprises, LLC

    AS7018

    Apex

    35.7326, -78.8503

    94% uptime

    113ms
    |
    0ms
    |
    127ms
  • 104.1.153.55

    AT&T Enterprises, LLC

    AS7018

    Apex

    35.7326, -78.8503

    100% uptime

    118ms
    |
    1ms
    |
    50ms