Internet Service Providers in United Kingdom

Top 20 organizations with the largest IP allocations in United Kingdom

United Kingdom

Top 20 organizations with the largest IP allocations


Rank Name IPv4 addresses IPv6 /64 networks AS numbers Prefixes
British Telecommunications PLC 13,668,352 1.02 x 242 5 628
Virgin Media Limited 9,533,952 1.01 x 239 2 356
Jisc Services Limited 7,415,040 1.13 x 236 1 213
4 EE Limited 7,104,256 236 1 70
5 Sky UK Limited 7,088,896 235 2 33
6 TalkTalk Communications Limited 5,010,176 1.25 x 235 4 84
7 Tiscali UK Limited 3,039,232 237 1 46
8 COLT Technology Services Group Limited 1,247,487 1.5 x 233 1 338
9 Vodafone Limited 1,127,424 232 6 66
10 ClaraNET LTD 1,038,848 1.2 x 236 3 166
11 KCOM Group PLC 849,666 1.13 x 235 2 67
12 Interoute Communications Limited 817,720 1.75 x 236 1 360
13 RM Education Ltd 762,880 232 1 32
14 Daisy Communications Ltd 741,376 236 1 111
15 Zen Internet Ltd 668,672 235 1 43
16 M247 Ltd 576,000 1.16 x 237 1 1,488
17 MDNX Internet Limited 531,712 232 1 57
18 Hutchison 3G UK Limited 528,896 1.25 x 232 2 73
19 iomart Cloud Services Limited. 399,104 1.01 x 235 2 354
20 Rackspace Ltd. 397,520 233 2 58