List of the top 20 organizations with the largest IP allocations in Belgium
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Proximus NV | 4,002,752 | 1.27 x 238 | 3 | 86 | |
| Telenet BVBA | 2,129,408 | 240 | 4 | 105 | |
| Orange Belgium SA | 1,352,448 | 1.51 x 233 | 1 | 83 | |
| 4 | BELNET | 942,336 | 1.38 x 235 | 3 | 43 |
| 5 | Brutele SC | 844,800 | 1.06 x 232 | 1 | 145 |
| 6 | Telenet Group NV | 267,264 | 1.25 x 232 | 1 | 10 |
| 7 | Destiny N.V | 102,912 | 1.63 x 235 | 4 | 52 |
| 8 | EDPNET NV | 96,512 | 1.78 x 231 | 2 | 64 |
| 9 | VERIXI SA | 87,296 | 233 | 2 | 50 |
| 10 | Innovative Solutions for Finance (IS4F) | 80,128 | 0 | 1 | 6 |
| 11 | Combell NV | 78,848 | 1.88 x 235 | 3 | 58 |
| 12 | Lambrechts Data Services VOF | 66,304 | 0 | 1 | 4 |
| 13 | Agfa Gevaert NV | 65,536 | 0 | 1 | 1 |
| 14 | Council of the EU, General Secretariat | 53,248 | 0 | 1 | 20 |
| 15 | Hermes Telecom BVBA | 52,992 | 1.06 x 236 | 2 | 10 |
| 16 | Cegeka NV | 44,544 | 1.01 x 225 | 3 | 31 |
| 17 | Easyhost BVBA | 39,168 | 232 | 1 | 5 |
| 18 | Network Research Belgium | 29,184 | 232 | 1 | 25 |
| 19 | Societe Internationale de Telecommunications Aeronautiques | 27,392 | 1.02 x 229 | 3 | 51 |
| 20 | ACTITO S.A. | 27,136 | 232 | 1 | 12 |