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 | 6,890,752 | 1.68 x 239 | 1 | 442 | |
| RIPE Network Coordination Centre | 2,702,848 | 243 | 3 | 397 | |
| Renater | 2,631,424 | 1.5 x 232 | 37 | 203 | |
| 4 | Vetenskapsradet / SUNET | 615,424 | 232 | 1 | 55 |
| 5 | Telstra Europe Ltd | 299,008 | 232 | 1 | 9 |
| 6 | Fortum | 198,656 | 0 | 1 | 5 |
| 7 | CEA-Saclay | 198,400 | 0 | 1 | 9 |
| 8 | Universiteit van Amsterdam | 196,608 | 0 | 1 | 4 |
| 9 | Forskningsnettet - Danish network for Research and Education | 164,352 | 1.25 x 234 | 1 | 8 |
| 10 | Shell Information Technology International B.V. | 143,104 | 0 | 2 | 29 |
| 11 | The Defence Science and Technology Laboratory | 95,488 | 235 | 1 | 23 |
| 12 | Fujitsu Invia Finland IP-network | 91,648 | 232 | 1 | 7 |
| 13 | Ringstad Consulting ENK | 66,048 | 0 | 1 | 2 |
| 14 | Middle East Technical University | 65,536 | 216 | 1 | 2 |
| 15 | Universitaet fur Bodenkultur, Wien | 65,536 | 0 | 1 | 1 |
| 16 | Malta Internet Foundation | 24,704 | 232 | 1 | 8 |
| 17 | Electricite de France SA | 21,760 | 228 | 1 | 20 |
| 18 | Vancis Advanced ICT Services | 13,568 | 232 | 1 | 6 |
| 19 | Telia Finland Oyj | 8,960 | 0 | 1 | 30 |
| 20 | The Press Association Limited | 5,376 | 0 | 1 | 11 |