List of the top 20 organizations with the largest IP allocations in Germany
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Deutsche Telekom AG | 36,339,968 | 245 | 3 | 1,084 | |
| Mercedes-Benz Group AG | 16,805,888 | 1.13 x 235 | 1 | 18 | |
| Vodafone GmbH | 15,758,336 | 1.05 x 242 | 1 | 320 | |
| 4 | Telefonica Germany GmbH & Co.OHG | 8,400,384 | 1.13 x 241 | 2 | 37 |
| 5 | Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. | 7,912,192 | 238 | 1 | 310 |
| 6 | Hetzner Online GmbH | 3,178,240 | 1.63 x 236 | 4 | 604 |
| 7 | 1&1 Versatel GmbH | 2,461,440 | 1.41 x 237 | 1 | 642 |
| 8 | Universitaet Stuttgart | 2,323,456 | 1.56 x 236 | 1 | 99 |
| 9 | Plusnet GmbH | 1,069,312 | 1.16 x 237 | 1 | 72 |
| 10 | EWE TEL GmbH | 958,208 | 1.19 x 237 | 2 | 62 |
| 11 | IONOS SE | 845,568 | 1.38 x 236 | 1 | 458 |
| 12 | Deutsche Post AG | 787,200 | 0 | 1 | 14 |
| 13 | euNetworks GmbH | 580,865 | 1.81 x 236 | 2 | 64 |
| 14 | NetCologne Gesellschaft fur Telekommunikation mbH | 577,280 | 1.59 x 237 | 1 | 50 |
| 15 | ecotel communication ag | 556,544 | 1.5 x 233 | 1 | 32 |
| 16 | Tele Columbus AG | 530,944 | 1.77 x 235 | 4 | 87 |
| 17 | M-net Telekommunikations GmbH | 523,008 | 1.56 x 236 | 1 | 80 |
| 18 | Contabo GmbH | 469,504 | 1.25 x 234 | 1 | 572 |
| 19 | EntServ Deutschland GmbH | 396,032 | 0 | 1 | 12 |
| 20 | Leibniz-Rechenzentrum | 395,264 | 235 | 1 | 11 |