DNS Servers

United Kingdom of Great Britain and Northern Ireland 824 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

  • 185.248.220.137

    Purefibre Internet Ltd.

    AS59953

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    0ms
    |
    314ms
  • 185.249.71.194

    Hyve Ltd

    AS204413

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    0ms
    |
    102ms
  • 188.166.150.163

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    19ms
    |
    0ms
    |
    38ms
  • 188.166.151.20

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    17ms
    |
    0ms
    |
    37ms
  • 188.166.159.144

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    0ms
    |
    38ms
  • 188.166.174.198

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    18ms
    |
    0ms
    |
    34ms
  • 192.248.144.28

    The Constant Company, LLC

    AS20473

    London

    51.5130, -0.0800

    100% uptime

    20ms
    |
    0ms
    |
    34ms
  • 192.248.151.68

    The Constant Company, LLC

    AS20473

    London

    51.5130, -0.0800

    100% uptime

    20ms
    |
    0ms
    |
    34ms
  • 192.248.166.164

    The Constant Company, LLC

    AS20473

    London

    51.5130, -0.0800

    100% uptime

    20ms
    |
    1ms
    |
    43ms
  • 192.248.172.155

    The Constant Company, LLC

    AS20473

    London

    51.5130, -0.0800

    100% uptime

    20ms
    |
    1ms
    |
    38ms
  • 193.56.1.137

    Jola Cloud Solutions Ltd

    AS212174

    London

    51.5085, -0.1257

    100% uptime

    104ms
    |
    4ms
    |
    228ms
  • 193.115.194.247

    Virtual1 Limited

    AS47474

    London

    51.5237, -0.0877

    100% uptime

    28ms
    |
    1ms
    |
    62ms
  • 193.115.194.248

    Virtual1 Limited

    AS47474

    London

    51.5237, -0.0877

    100% uptime

    26ms
    |
    1ms
    |
    64ms
  • 193.115.194.249

    Virtual1 Limited

    AS47474

    London

    51.5237, -0.0877

    100% uptime

    28ms
    |
    2ms
    |
    64ms
  • 193.115.194.250

    Virtual1 Limited

    AS47474

    London

    51.5237, -0.0877

    100% uptime

    26ms
    |
    1ms
    |
    59ms
  • 193.115.216.94

    Virtual1 Limited

    AS47474

    London

    51.5237, -0.0877

    100% uptime

    25ms
    |
    1ms
    |
    46ms
  • 193.117.230.234

    Virtual1 Limited

    AS47474

    London

    51.5085, -0.1257

    98% uptime

    20ms
    |
    1ms
    |
    32ms
  • 193.117.252.38

    Virtual1 Limited

    AS47474

    London

    51.5237, -0.0877

    100% uptime

    34ms
    |
    1ms
    |
    65ms
  • 194.29.101.238

    HostHatch, LLC

    AS63473

    London

    51.5085, -0.1257

    98% uptime

    15ms
    |
    5ms
    |
    26ms
  • 194.35.42.17

    NEAR IP, S.L.

    AS49600

    London

    51.5085, -0.1257

    100% uptime

    35ms
    |
    1ms
    |
    46ms
  • 194.72.29.133

    British Telecommunications PLC

    AS2856

    London

    51.5085, -0.1257

    100% uptime

    26ms
    |
    0ms
    |
    54ms
  • 194.72.225.253

    British Telecommunications PLC

    AS2856

    London

    51.5085, -0.1257

    100% uptime

    18ms
    |
    0ms
    |
    27ms
  • 194.72.230.171

    British Telecommunications PLC

    AS2856

    London

    51.5085, -0.1257

    100% uptime

    20ms
    |
    0ms
    |
    101ms
  • 194.75.199.115

    British Telecommunications PLC

    AS2856

    London

    51.5085, -0.1257

    100% uptime

    25ms
    |
    0ms
    |
    51ms
  • 194.75.199.116

    British Telecommunications PLC

    AS2856

    London

    51.5085, -0.1257

    98% uptime

    25ms
    |
    0ms
    |
    58ms
  • 194.75.199.117

    British Telecommunications PLC

    AS2856

    London

    51.5085, -0.1257

    100% uptime

    25ms
    |
    0ms
    |
    56ms
  • 194.116.175.45

    Compuweb Communications Services Limited

    AS15510

    London

    51.5085, -0.1257

    100% uptime

    26ms
    |
    1ms
    |
    62ms
  • 194.164.90.105

    IONOS SE

    AS8560

    London

    51.5085, -0.1257

    88% uptime

    21ms
    |
    1ms
    |
    48ms
  • 194.164.95.54

    IONOS SE

    AS8560

    London

    51.5085, -0.1257

    88% uptime

    22ms
    |
    1ms
    |
    32ms
  • 194.164.125.168

    IONOS SE

    AS8560

    London

    51.5085, -0.1257

    98% uptime

    21ms
    |
    1ms
    |
    50ms
  • 194.207.23.74

    GCI Network Solutions Limited

    AS8851

    London

    51.5085, -0.1257

    100% uptime

    19ms
    |
    0ms
    |
    44ms
  • 194.207.23.75

    GCI Network Solutions Limited

    AS8851

    London

    51.5085, -0.1257

    100% uptime

    19ms
    |
    0ms
    |
    46ms
  • 195.21.37.217

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    15ms
    |
    1ms
    |
    33ms
  • 195.21.52.233

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    1ms
    |
    33ms
  • 195.99.65.220

    British Telecommunications PLC

    AS5400

    London

    51.5085, -0.1257

    100% uptime

    4ms
    |
    0ms
    |
    18ms
  • 195.173.172.204

    Vodafone Group PLC

    AS1273

    London

    51.5085, -0.1257

    100% uptime

    23ms
    |
    3ms
    |
    55ms
  • 195.181.164.36

    Datacamp Limited

    AS60068

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    0ms
    |
    34ms
  • 197.155.92.35

    Liquid Telecommunications Ltd

    AS30844

    London

    51.5085, -0.1257

    100% uptime

    34ms
    |
    0ms
    |
    206ms
  • 198.244.131.167

    OVH SAS

    AS16276

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    2ms
    |
    33ms
  • 198.244.207.88

    OVH SAS

    AS16276

    London

    51.5085, -0.1257

    99% uptime

    16ms
    |
    1ms
    |
    38ms
  • 206.189.125.31

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    17ms
    |
    1ms
    |
    37ms
  • 206.189.245.83

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    1ms
    |
    23ms
  • 209.38.166.231

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    17ms
    |
    1ms
    |
    39ms
  • 209.97.134.194

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    0ms
    |
    38ms
  • 209.97.190.176

    DigitalOcean, LLC

    AS14061

    London

    51.5085, -0.1257

    100% uptime

    14ms
    |
    0ms
    |
    42ms
  • 209.250.226.186

    The Constant Company, LLC

    AS20473

    London

    51.5130, -0.0800

    100% uptime

    20ms
    |
    1ms
    |
    42ms
  • 209.250.226.228

    The Constant Company, LLC

    AS20473

    London

    51.5085, -0.1257

    99% uptime

    20ms
    |
    1ms
    |
    47ms
  • 209.250.230.230

    The Constant Company, LLC

    AS20473

    London

    51.5130, -0.0800

    100% uptime

    20ms
    |
    1ms
    |
    35ms
  • 212.46.131.245

    BE SLOUGH DC UK LIMITED

    AS205434

    London

    51.5085, -0.1257

    98% uptime

    14ms
    |
    0ms
    |
    41ms
  • 212.69.60.3

    IDNet

    AS12496

    London

    51.5085, -0.1257

    100% uptime

    28ms
    |
    0ms
    |
    68ms
  • 212.133.39.234

    Level 3 Parent, LLC

    AS3356

    London

    51.5085, -0.1257

    100% uptime

    23ms
    |
    1ms
    |
    41ms
  • 212.161.95.174

    COLT Technology Services Group Limited

    AS8220

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    0ms
    |
    33ms
  • 212.188.245.78

    ClaraNET LTD

    AS8426

    London

    51.5085, -0.1257

    94% uptime

    22ms
    |
    0ms
    |
    57ms
  • 212.250.110.70

    Virgin Media Limited

    AS5089

    London

    51.5085, -0.1257

    99% uptime

    20ms
    |
    1ms
    |
    46ms
  • 213.86.15.187

    COLT Technology Services Group Limited

    AS8220

    London

    51.5085, -0.1257

    94% uptime

    16ms
    |
    0ms
    |
    86ms
  • 213.122.33.81

    British Telecommunications PLC

    AS2856

    London

    51.5085, -0.1257

    88% uptime

    24ms
    |
    0ms
    |
    48ms
  • 213.146.132.120

    Redcentric Solutions Ltd

    AS13009

    London

    51.5085, -0.1257

    100% uptime

    32ms
    |
    1ms
    |
    53ms
  • 213.146.132.121

    Redcentric Solutions Ltd

    AS13009

    London

    51.5085, -0.1257

    100% uptime

    33ms
    |
    0ms
    |
    60ms
  • 213.146.135.152

    Redcentric Solutions Ltd

    AS13009

    London

    51.5085, -0.1257

    100% uptime

    34ms
    |
    3ms
    |
    59ms
  • 213.146.135.156

    Redcentric Solutions Ltd

    AS13009

    London

    51.5085, -0.1257

    99% uptime

    32ms
    |
    3ms
    |
    55ms
  • 213.146.136.139

    Redcentric Solutions Ltd

    AS13009

    London

    51.5085, -0.1257

    100% uptime

    33ms
    |
    0ms
    |
    54ms
  • 213.168.250.142

    Akamai Connected Cloud

    AS63949

    London

    51.5085, -0.1257

    100% uptime

    20ms
    |
    0ms
    |
    41ms
  • 213.251.18.49

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    15ms
    |
    1ms
    |
    34ms
  • 213.251.33.250

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    15ms
    |
    2ms
    |
    33ms
  • 213.251.39.146

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    18ms
    |
    1ms
    |
    36ms
  • 213.251.51.146

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    1ms
    |
    33ms
  • 213.251.56.33

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    1ms
    |
    33ms
  • 213.251.58.218

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    1ms
    |
    33ms
  • 213.251.63.225

    GTT Communications Inc.

    AS3257

    London

    51.5085, -0.1257

    100% uptime

    16ms
    |
    1ms
    |
    33ms
  • 213.255.246.99

    Clouvider

    AS62240

    London

    51.5085, -0.1257

    99% uptime

    20ms
    |
    1ms
    |
    23ms
  • 216.128.28.139

    Space Exploration Technologies Corporation

    AS14593

    London

    51.5085, -0.1257

    100% uptime

    37ms
    |
    4ms
    |
    106ms
  • 216.128.28.152

    Space Exploration Technologies Corporation

    AS14593

    London

    51.5085, -0.1257

    100% uptime

    39ms
    |
    4ms
    |
    74ms
  • 216.213.185.192

    Gigaclear Limited

    AS56329

    London

    51.5085, -0.1257

    100% uptime

    25ms
    |
    0ms
    |
    48ms
  • 217.15.112.170

    Liquid Telecommunications Ltd

    AS30844

    London

    51.5085, -0.1257

    100% uptime

    32ms
    |
    0ms
    |
    176ms
  • 217.18.215.137

    Cinos Communications Services Limited

    AS207310

    London

    51.5085, -0.1257

    100% uptime

    22ms
    |
    1ms
    |
    56ms
  • 217.18.215.157

    Cinos Communications Services Limited

    AS207310

    London

    51.5085, -0.1257

    100% uptime

    23ms
    |
    1ms
    |
    57ms
  • 217.138.27.107

    M247 UK Ltd

    AS16247

    London

    51.5085, -0.1257

    100% uptime

    20ms
    |
    1ms
    |
    52ms
  • 217.138.27.108

    M247 UK Ltd

    AS16247

    London

    51.5085, -0.1257

    100% uptime

    20ms
    |
    2ms
    |
    27ms
  • 217.138.240.122

    M247 UK Ltd

    AS16247

    London

    51.5085, -0.1257

    99% uptime

    19ms
    |
    1ms
    |
    38ms
  • 217.146.102.193

    Merula Limited

    AS16353

    London

    51.5085, -0.1257

    100% uptime

    20ms
    |
    0ms
    |
    36ms
  • 217.146.115.141

    Merula Limited

    AS16353

    London

    51.5085, -0.1257

    100% uptime

    28ms
    |
    1ms
    |
    56ms
  • 5.81.74.253

    British Telecommunications PLC

    AS2856

    Loughton

    52.0304, -0.7864

    100% uptime

    23ms
    |
    0ms
    |
    38ms
  • 77.75.184.4

    M247 UK Ltd

    AS42973

    Manchester

    53.4809, -2.2374

    100% uptime

    19ms
    |
    1ms
    |
    29ms
  • 82.30.62.66

    Virgin Media Limited

    AS5089

    Manchester

    53.4809, -2.2374

    100% uptime

    29ms
    |
    2ms
    |
    106ms
  • 94.136.242.164

    WEBBING USA, INC.

    AS393559

    Manchester

    53.4809, -2.2374

    100% uptime

    84ms
    |
    65ms
    |
    330ms
  • 94.136.243.88

    WEBBING USA, INC.

    AS393559

    Manchester

    53.4809, -2.2374

    98% uptime

    84ms
    |
    5ms
    |
    378ms
  • 94.136.243.93

    WEBBING USA, INC.

    AS393559

    Manchester

    53.4809, -2.2374

    88% uptime

    106ms
    |
    38ms
    |
    255ms
  • 137.220.122.160

    Hyperoptic Ltd

    AS56478

    Manchester

    53.4809, -2.2374

    98% uptime

    30ms
    |
    3ms
    |
    68ms
  • 149.40.118.10

    ITS Technology Group Limited

    AS41354

    Manchester

    53.4809, -2.2374

    88% uptime

    21ms
    |
    0ms
    |
    94ms
  • 149.40.124.66

    ITS Technology Group Limited

    AS41354

    Manchester

    53.4809, -2.2374

    94% uptime

    26ms
    |
    0ms
    |
    217ms
  • 149.86.74.238

    ITS Technology Group Limited

    AS41354

    Manchester

    53.4809, -2.2374

    100% uptime

    27ms
    |
    1ms
    |
    36ms
  • 149.107.99.242

    ITS Technology Group Limited

    AS41354

    Manchester

    53.4809, -2.2374

    100% uptime

    26ms
    |
    1ms
    |
    35ms
  • 157.231.159.234

    Gamma Telecom Holdings Ltd

    AS31655

    Manchester

    53.4809, -2.2374

    100% uptime

    28ms
    |
    1ms
    |
    51ms
  • 157.231.159.237

    Gamma Telecom Holdings Ltd

    AS31655

    Manchester

    53.4809, -2.2374

    100% uptime

    28ms
    |
    0ms
    |
    52ms
  • 164.39.46.148

    M247 UK Ltd

    AS42973

    Manchester

    53.4809, -2.2374

    99% uptime

    22ms
    |
    1ms
    |
    53ms
  • 185.137.64.217

    VCG TECHNOLOGY SERVICES LIMITED

    AS50023

    Manchester

    53.4809, -2.2374

    100% uptime

    42ms
    |
    0ms
    |
    168ms
  • 185.137.66.83

    VCG TECHNOLOGY SERVICES LIMITED

    AS50023

    Manchester

    53.4809, -2.2374

    88% uptime

    38ms
    |
    0ms
    |
    131ms
  • 185.137.66.114

    VCG TECHNOLOGY SERVICES LIMITED

    AS50023

    Manchester

    53.4809, -2.2374

    100% uptime

    42ms
    |
    10ms
    |
    136ms
  • 212.139.221.68

    TalkTalk Communications Limited

    AS13285

    Manchester

    53.4809, -2.2374

    100% uptime

    25ms
    |
    2ms
    |
    34ms
  • 213.146.175.238

    IP River Limited

    AS62163

    Manchester

    53.4809, -2.2374

    100% uptime

    26ms
    |
    0ms
    |
    86ms