List of the top 20 organizations with the largest IP allocations in European Union
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Tele2 Sverige AB | 7,504,384 | 1.73 x 239 | 1 | 423 | |
| Vodafone Group PLC | 1,998,592 | 243 | 1 | 189 | |
| Renater | 1,941,504 | 1.5 x 232 | 32 | 162 | |
| 4 | Vetenskapsradet / SUNET | 618,240 | 232 | 1 | 62 |
| 5 | CEA-Saclay | 198,656 | 0 | 1 | 10 |
| 6 | Universiteit van Amsterdam | 196,608 | 0 | 1 | 4 |
| 7 | Forskningsnettet - Danish network for Research and Education | 164,352 | 1.25 x 234 | 1 | 8 |
| 8 | Fortum | 133,120 | 0 | 1 | 3 |
| 9 | The Defence Science and Technology Laboratory | 94,464 | 235 | 1 | 19 |
| 10 | Fujitsu Invia Finland IP-network | 91,648 | 232 | 1 | 7 |
| 11 | Universitaet fur Bodenkultur, Wien | 65,536 | 0 | 1 | 1 |
| 12 | Shell Information Technology International B.V. | 15,872 | 0 | 2 | 48 |
| 13 | Electricite de France SA | 15,104 | 228 | 1 | 11 |
| 14 | Vancis Advanced ICT Services | 13,312 | 232 | 1 | 5 |
| 15 | Telia Finland Oyj | 8,960 | 0 | 1 | 30 |
| 16 | The Press Association Limited | 5,376 | 0 | 1 | 11 |
| 17 | Federal State Budgetary Institution "Institute of High Energy Physics named aft | 4,608 | 216 | 1 | 5 |
| 18 | ISI | 4,096 | 0 | 1 | 12 |
| 19 | BGC Partners | 2,048 | 0 | 1 | 8 |
| 20 | AS250.net Foundation | 1,792 | 232 | 1 | 5 |