Country Report

Internet Service Providers in United Kingdom

Top 50 organizations with the largest IP allocations in United Kingdom

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Name IPv4 addresses AS numbers

British Telecommunications PLC

12,912,384 9

Virgin Media Limited

9,535,488 7

Jisc Services Limited

7,415,296 15

EE Limited

7,104,512 5

Sky UK Limited

7,088,896 4

TELE2 Group

4,962,560 1

TalkTalk Communications Limited

3,901,440 5

Tiscali UK Limited

3,039,232 3

Vodafone Group PLC

2,028,032 1

COLT Technology Services Group Limited

1,235,711 3

Vodafone Limited

1,127,168 15

ClaraNET LTD

1,039,872 5

25 Canada Square, Canary Wharf, 31st Floor

877,568 1

British Telecommunications plc

832,000 2

Daisy Communications Ltd

792,064 6

RM Education Ltd

762,880 1

Zen Internet Plexus Network - UK

668,672 1

MDNX Internet Limited

531,712 1

Hutchison 3G UK Limited

528,896 3

M247 Ltd

497,920 2

(Service-Provider Network) (ex-Mistral)

436,738 1

KCOM GROUP PLC

412,672 1

IOMART CLOUD SERVICES LIMITED

402,944 3

Rackspace Ltd.

397,312 2

ENTANET International Limited

360,960 1

TELECITYGROUP INTERNATIONAL LIMITED

325,120 3

Exponential-E Ltd.

302,336 2

Gamma Telecom Holdings Ltd

298,240 2

KCOM Group Public Limited Company

261,376 2

Verizon Nederland B.V.

252,672 2

Amazon Data Services Ireland Ltd

234,496 1

The Cloud Networks Limited

231,680 1

Cable & Wireless Access Limited

229,376 1

Timico Limited

222,208 9

Telefonica UK Limited

212,992 3

THE INTERNEXUS GROUP LIMITED

212,992 1

Cablecom Networking Limited

189,184 2

Liquid Telecommunications Ltd

172,658 2

Avanti Broadband Ltd

159,232 1

Itility Limited

157,696 3

Coolwave Communications B.V.

155,392 1

GCI Network Solutions Limited

141,824 3

Queen Mary and Westfield College, University of Lo

133,120 1

NATIONWIDE BUILDING SOCIETY

131,072 2

British Airways plc

131,072 1

Virtual1 Limited

129,536 1

Andrews & Arnold Ltd

128,768 1

EQUINIX (SERVICES) LIMITED

124,416 2

Akamai International B.V.

122,240 2

Six Degrees Technology Group Limited

120,576 12