DNS Servers

Japan 386 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

  • 167.179.78.249

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    97% uptime

    239ms
    |
    10ms
    |
    258ms
  • 167.179.86.22

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    242ms
    |
    8ms
    |
    252ms
  • 167.179.99.95

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    242ms
    |
    7ms
    |
    252ms
  • 167.179.102.110

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    240ms
    |
    10ms
    |
    267ms
  • 167.179.102.152

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    98% uptime

    250ms
    |
    10ms
    |
    257ms
  • 167.179.102.255

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    98% uptime

    249ms
    |
    9ms
    |
    257ms
  • 198.13.35.68

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    240ms
    |
    9ms
    |
    258ms
  • 198.13.36.123

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    250ms
    |
    11ms
    |
    258ms
  • 198.13.38.170

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    98% uptime

    251ms
    |
    8ms
    |
    260ms
  • 198.13.57.168

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    242ms
    |
    8ms
    |
    262ms
  • 202.182.97.89

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    96% uptime

    249ms
    |
    7ms
    |
    268ms
  • 202.182.98.115

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    244ms
    |
    8ms
    |
    254ms
  • 202.182.114.146

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    98% uptime

    240ms
    |
    10ms
    |
    254ms
  • 207.148.91.174

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    98% uptime

    238ms
    |
    10ms
    |
    260ms
  • 207.148.96.64

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    100% uptime

    243ms
    |
    9ms
    |
    259ms
  • 207.148.105.132

    The Constant Company, LLC

    AS20473

    Ōi

    35.6090, 139.7302

    96% uptime

    244ms
    |
    9ms
    |
    266ms
  • 218.225.119.130

    KDDI CORPORATION

    AS2516

    Ōmura

    32.9214, 129.9539

    98% uptime

    289ms
    |
    5ms
    |
    340ms
  • 15.168.232.93

    Amazon.com, Inc.

    AS16509

    Osaka

    34.6938, 135.5011

    100% uptime

    248ms
    |
    8ms
    |
    261ms
  • 23.106.142.219

    IT7 Networks Inc

    AS25820

    Osaka

    34.6938, 135.5011

    100% uptime

    261ms
    |
    4ms
    |
    268ms
  • 38.47.97.87

    VMISS Inc.

    AS400464

    Osaka

    34.6938, 135.5011

    100% uptime

    249ms
    |
    4ms
    |
    18ms
  • 49.212.196.132

    SAKURA Internet Inc.

    AS9371

    Osaka

    34.6938, 135.5011

    100% uptime

    245ms
    |
    1ms
    |
    88ms
  • 61.194.100.210

    NTT PC Communications, Inc.

    AS2514

    Osaka

    34.6938, 135.5011

    100% uptime

    263ms
    |
    4ms
    |
    290ms
  • 61.194.100.211

    NTT PC Communications, Inc.

    AS2514

    Osaka

    34.6938, 135.5011

    100% uptime

    265ms
    |
    4ms
    |
    288ms
  • 61.194.100.212

    NTT PC Communications, Inc.

    AS2514

    Osaka

    34.6938, 135.5011

    100% uptime

    264ms
    |
    4ms
    |
    288ms
  • 64.110.109.154

    Oracle Corporation

    AS31898

    Osaka

    34.6938, 135.5011

    98% uptime

    244ms
    |
    4ms
    |
    258ms
  • 64.176.37.193

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    244ms
    |
    4ms
    |
    262ms
  • 64.176.38.56

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    255ms
    |
    1ms
    |
    268ms
  • 64.176.41.237

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    244ms
    |
    5ms
    |
    263ms
  • 64.176.42.66

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    225ms
    |
    0ms
    |
    246ms
  • 64.176.43.5

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    254ms
    |
    0ms
    |
    250ms
  • 64.176.43.188

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    243ms
    |
    5ms
    |
    258ms
  • 64.176.47.22

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    255ms
    |
    2ms
    |
    240ms
  • 64.176.49.41

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    252ms
    |
    7ms
    |
    249ms
  • 64.176.50.24

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    226ms
    |
    0ms
    |
    248ms
  • 64.176.51.158

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    241ms
    |
    7ms
    |
    261ms
  • 64.176.53.191

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    254ms
    |
    4ms
    |
    233ms
  • 64.176.56.250

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    246ms
    |
    5ms
    |
    258ms
  • 64.176.57.197

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    98% uptime

    243ms
    |
    5ms
    |
    261ms
  • 64.176.58.115

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    255ms
    |
    6ms
    |
    254ms
  • 66.245.218.233

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    252ms
    |
    7ms
    |
    252ms
  • 66.245.218.238

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    98% uptime

    242ms
    |
    7ms
    |
    266ms
  • 66.245.219.20

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    254ms
    |
    0ms
    |
    248ms
  • 66.245.219.24

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    244ms
    |
    5ms
    |
    260ms
  • 66.245.219.35

    The Constant Company, LLC

    AS20473

    Osaka

    34.6938, 135.5011

    100% uptime

    241ms
    |
    6ms
    |
    262ms
  • 92.202.37.34

    Sony Network Communications Inc.

    AS2527

    Osaka

    34.6938, 135.5011

    92% uptime

    257ms
    |
    0ms
    |
    13ms
  • 103.26.27.251

    TelHi Corporation

    AS150369

    Osaka

    34.6938, 135.5011

    98% uptime

    259ms
    |
    6ms
    |
    30ms
  • 103.88.44.33

    xTom

    AS4785

    Osaka

    34.6938, 135.5011

    100% uptime

    280ms
    |
    17ms
    |
    300ms
  • 115.30.191.49

    STNet, Incorporated

    AS7522

    Osaka

    34.6938, 135.5011

    92% uptime

    292ms
    |
    2ms
    |
    631ms
  • 116.58.175.61

    NTT PC Communications, Inc.

    AS2514

    Osaka

    34.6938, 135.5011

    92% uptime

    267ms
    |
    3ms
    |
    591ms
  • 120.143.48.206

    NTT PC Communications, Inc.

    AS2514

    Osaka

    34.6938, 135.5011

    100% uptime

    262ms
    |
    4ms
    |
    92ms
  • 121.104.209.92

    KDDI CORPORATION

    AS2516

    Osaka

    34.6938, 135.5011

    97% uptime

    276ms
    |
    4ms
    |
    432ms
  • 138.2.52.34

    Oracle Corporation

    AS31898

    Osaka

    34.6938, 135.5011

    92% uptime

    243ms
    |
    2ms
    |
    13ms
  • 150.230.61.80

    Oracle Corporation

    AS31898

    Osaka

    34.6938, 135.5011

    100% uptime

    242ms
    |
    5ms
    |
    260ms
  • 160.251.171.125

    GMO Internet, Inc.

    AS58791

    Osaka

    34.6938, 135.5011

    98% uptime

    264ms
    |
    7ms
    |
    298ms
  • 162.43.53.234

    Xserver Inc.

    AS131965

    Osaka

    34.6938, 135.5011

    100% uptime

    226ms
    |
    0ms
    |
    258ms
  • 172.233.65.253

    Akamai Connected Cloud

    AS63949

    Osaka

    34.6938, 135.5011

    98% uptime

    264ms
    |
    6ms
    |
    278ms
  • 178.157.60.124

    IT7 Networks Inc

    AS25820

    Osaka

    34.6938, 135.5011

    100% uptime

    262ms
    |
    5ms
    |
    292ms
  • 210.156.0.130

    Cyber Kansai Project

    AS4718

    Osaka

    34.6938, 135.5011

    98% uptime

    271ms
    |
    8ms
    |
    332ms
  • 59.146.22.48

    Sony Network Communications Inc.

    AS2527

    Oyama

    36.3000, 139.8000

    100% uptime

    288ms
    |
    12ms
    |
    64ms
  • 114.16.205.135

    KDDI CORPORATION

    AS2516

    Saitama

    35.9081, 139.6566

    100% uptime

    264ms
    |
    38ms
    |
    298ms
  • 150.249.103.220

    Sony Network Communications Inc.

    AS2527

    Saitama

    35.9081, 139.6566

    100% uptime

    272ms
    |
    2ms
    |
    284ms
  • 180.131.125.156

    FreeBit Co.,Ltd.

    AS10013

    Sapporo

    43.0667, 141.3500

    100% uptime

    266ms
    |
    7ms
    |
    326ms
  • 210.159.17.242

    KDDI CORPORATION

    AS2516

    Sendai

    38.2667, 140.8667

    100% uptime

    273ms
    |
    2ms
    |
    258ms
  • 64.33.3.100

    Koshinomiyako Network, Inc.

    AS24255

    Takefu

    35.9039, 136.1669

    98% uptime

    256ms
    |
    5ms
    |
    589ms
  • 165.101.8.1

    Incorporated Educational Institution Kaichigakuen

    AS152870

    Tokorozawa

    35.7992, 139.4690

    100% uptime

    255ms
    |
    7ms
    |
    22ms
  • 61.201.24.249

    SoftBank Corp.

    AS4725

    Tokushima

    34.0667, 134.5667

    97% uptime

    261ms
    |
    5ms
    |
    309ms
  • 1.33.209.101

    NTT PC Communications, Inc.

    AS2514

    Tokyo

    35.6895, 139.6917

    98% uptime

    257ms
    |
    5ms
    |
    324ms
  • 8.216.82.12

    Alibaba (US) Technology Co., Ltd.

    AS45102

    Tokyo

    35.6895, 139.6917

    100% uptime

    223ms
    |
    8ms
    |
    221ms
  • 20.40.99.201

    Microsoft Corporation

    AS8075

    Tokyo

    35.6895, 139.6917

    100% uptime

    224ms
    |
    0ms
    |
    20ms
  • 23.249.16.133

    Prime Security Corp.

    AS400618

    Tokyo

    35.6895, 139.6917

    100% uptime

    202ms
    |
    3ms
    |
    208ms
  • 27.123.14.19

    Ip Core Corporation

    AS38638

    Tokyo

    35.6895, 139.6917

    100% uptime

    264ms
    |
    4ms
    |
    308ms
  • 34.146.89.95

    Google LLC

    AS396982

    Tokyo

    35.6895, 139.6917

    97% uptime

    236ms
    |
    6ms
    |
    272ms
  • 35.190.224.220

    Google LLC

    AS396982

    Tokyo

    35.6895, 139.6917

    100% uptime

    236ms
    |
    6ms
    |
    251ms
  • 39.111.110.144

    Sony Network Communications Inc.

    AS2527

    Tokyo

    35.6895, 139.6917

    100% uptime

    272ms
    |
    2ms
    |
    275ms
  • 43.167.157.97

    Tencent Building, Kejizhongyi Avenue

    AS132203

    Tokyo

    35.6895, 139.6917

    100% uptime

    261ms
    |
    2ms
    |
    273ms
  • 43.231.191.2

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    92% uptime

    247ms
    |
    4ms
    |
    275ms
  • 43.231.191.6

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    83% uptime

    241ms
    |
    6ms
    |
    259ms
  • 43.231.191.7

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    5ms
    |
    272ms
  • 43.231.191.8

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    247ms
    |
    5ms
    |
    268ms
  • 43.231.191.10

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    247ms
    |
    5ms
    |
    253ms
  • 43.231.191.15

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    6ms
    |
    266ms
  • 43.231.191.21

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    6ms
    |
    264ms
  • 43.231.191.26

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    247ms
    |
    5ms
    |
    264ms
  • 43.231.191.30

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    92% uptime

    244ms
    |
    5ms
    |
    265ms
  • 43.231.191.34

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    92% uptime

    246ms
    |
    5ms
    |
    268ms
  • 43.231.191.35

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    244ms
    |
    6ms
    |
    264ms
  • 43.231.191.37

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    245ms
    |
    6ms
    |
    262ms
  • 43.231.191.40

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    250ms
    |
    3ms
    |
    272ms
  • 43.231.191.41

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    250ms
    |
    7ms
    |
    271ms
  • 43.231.191.42

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    5ms
    |
    273ms
  • 43.231.191.45

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    7ms
    |
    258ms
  • 43.231.191.49

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    5ms
    |
    265ms
  • 43.231.191.53

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    92% uptime

    250ms
    |
    7ms
    |
    269ms
  • 43.231.191.54

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    248ms
    |
    5ms
    |
    266ms
  • 43.231.191.56

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    6ms
    |
    268ms
  • 43.231.191.57

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    243ms
    |
    6ms
    |
    268ms
  • 43.231.191.62

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    248ms
    |
    6ms
    |
    266ms
  • 43.231.191.64

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    92% uptime

    244ms
    |
    7ms
    |
    269ms
  • 43.231.191.67

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    246ms
    |
    5ms
    |
    264ms
  • 43.231.191.70

    NTT America, Inc.

    AS2914

    Tokyo

    35.6895, 139.6917

    100% uptime

    240ms
    |
    8ms
    |
    266ms