Top 20 organizations with the largest IP allocations in United Kingdom
Top 20 organizations with the largest IP allocations
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Virgin Media Limited | 26,986,840 | 1.01 x 239 | 2 | 342 | |
| TalkTalk Communications Limited | 18,476,800 | 1.56 x 237 | 5 | 129 | |
| British Telecommunications PLC | 18,205,952 | 1.13 x 242 | 5 | 385 | |
| 4 | EE Limited | 10,711,296 | 236 | 1 | 56 |
| 5 | Sky UK Limited | 7,482,624 | 235 | 2 | 28 |
| 6 | Jisc Services Limited | 7,438,848 | 1.63 x 236 | 1 | 198 |
| 7 | Vodafone Limited | 1,915,648 | 232 | 6 | 61 |
| 8 | COLT Technology Services Group Limited | 1,262,592 | 1.25 x 234 | 1 | 880 |
| 9 | KCOM Group Public Limited Company | 1,189,634 | 1.38 x 235 | 4 | 81 |
| 10 | ClaraNET LTD | 1,080,064 | 1.19 x 236 | 3 | 149 |
| 11 | Akamai International B.V. | 927,104 | 232 | 2 | 245 |
| 12 | M247 Ltd | 871,456 | 1.72 x 237 | 1 | 2,199 |
| 13 | Interoute Communications Limited | 829,056 | 232 | 1 | 243 |
| 14 | Daisy Communications Ltd | 780,544 | 1.19 x 236 | 4 | 111 |
| 15 | Digital Energy Technologies Limited | 747,520 | 1.23 x 238 | 1 | 1,409 |
| 16 | RM Education Ltd | 698,368 | 232 | 1 | 16 |
| 17 | Zen Internet Ltd | 673,792 | 235 | 1 | 30 |
| 18 | Hutchison 3G UK Limited | 597,504 | 1.25 x 232 | 2 | 40 |
| 19 | Telefonica UK Limited | 548,864 | 0 | 3 | 155 |
| 20 | MDNX Internet Limited | 534,528 | 232 | 1 | 51 |
