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 | 36,233,984 | 245 | 3 | 1,058 | |
| Mercedes-Benz Group AG | 16,805,888 | 1.13 x 235 | 1 | 18 | |
| Vodafone GmbH | 15,757,568 | 1.05 x 242 | 1 | 317 | |
| 4 | Telefonica Germany GmbH & Co.OHG | 9,198,080 | 1.13 x 241 | 2 | 80 |
| 5 | Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. | 7,912,192 | 238 | 1 | 310 |
| 6 | Hetzner Online GmbH | 3,176,960 | 1.63 x 236 | 4 | 600 |
| 7 | Universitaet Stuttgart | 2,323,456 | 1.56 x 236 | 1 | 99 |
| 8 | 1&1 Versatel GmbH | 2,181,120 | 1.41 x 237 | 1 | 599 |
| 9 | Plusnet GmbH | 1,069,312 | 1.16 x 237 | 1 | 72 |
| 10 | EWE TEL GmbH | 957,440 | 1.19 x 237 | 2 | 62 |
| 11 | IONOS SE | 845,312 | 1.38 x 236 | 1 | 457 |
| 12 | Deutsche Post AG | 787,200 | 0 | 1 | 14 |
| 13 | euNetworks GmbH | 581,377 | 1.81 x 236 | 2 | 66 |
| 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 | 530,688 | 1.77 x 235 | 4 | 86 |
| 17 | M-net Telekommunikations GmbH | 523,008 | 1.06 x 236 | 1 | 79 |
| 18 | Contabo GmbH | 469,504 | 1.25 x 234 | 1 | 572 |
| 19 | Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 403,456 | 234 | 8 | 407 |
| 20 | Leibniz-Rechenzentrum | 395,264 | 235 | 1 | 11 |