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 13,765,120 1.02 x 242 5 619
Virgin Media Limited 9,527,552 1.01 x 239 2 348
Jisc Services Limited 7,415,296 1.13 x 236 1 214
4 Sky UK Limited 7,088,896 235 2 33
5 EE Limited 6,973,184 236 1 74
6 TalkTalk Communications Limited 5,010,176 1.25 x 235 4 84
7 Tiscali UK Limited 3,039,232 237 1 46
8 Vodafone Limited 1,914,112 232 6 69
9 COLT Technology Services Group Limited 1,216,511 234 1 339
10 ClaraNET LTD 1,105,664 1.38 x 236 3 177
11 KCOM Group PLC 849,666 1.13 x 235 2 67
12 Interoute Communications Limited 746,080 1.12 x 236 1 436
13 Daisy Communications Ltd 741,632 236 1 128
14 RM Education Ltd 730,112 232 1 32
15 Zen Internet Ltd 668,672 235 1 43
16 M247 Ltd 612,096 1.16 x 237 1 1,659
17 MDNX Internet Limited 534,016 232 1 59
18 Hutchison 3G UK Limited 528,896 1.25 x 232 2 74
19 Digital Energy Technologies Limited 411,904 1.46 x 238 1 1,108
20 Rackspace Ltd. 399,392 233 2 75