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 | 36,103,680 | 1.01 x 245 | 3 | 756 | |
| Mercedes-Benz Group AG | 16,805,888 | 1.13 x 235 | 1 | 18 | |
| Vodafone GmbH | 15,758,336 | 1.05 x 242 | 1 | 319 | |
| 4 | Telefonica Germany GmbH & Co.OHG | 8,400,128 | 1.13 x 241 | 2 | 36 |
| 5 | Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. | 7,979,264 | 238 | 1 | 311 |
| 6 | Hetzner Online GmbH | 2,922,752 | 1.69 x 236 | 4 | 503 |
| 7 | Universitaet Stuttgart | 2,323,456 | 1.56 x 236 | 1 | 99 |
| 8 | 1&1 Versatel Deutschland GmbH | 2,168,320 | 1.16 x 237 | 4 | 581 |
| 9 | Plusnet GmbH | 1,070,336 | 1.16 x 237 | 1 | 72 |
| 10 | EWE TEL GmbH | 957,440 | 1.19 x 237 | 2 | 62 |
| 11 | IONOS SE | 808,960 | 1.31 x 236 | 1 | 400 |
| 12 | Deutsche Post AG | 787,200 | 0 | 1 | 14 |
| 13 | Tele Columbus AG | 590,848 | 1.77 x 235 | 4 | 91 |
| 14 | euNetworks GmbH | 581,633 | 1.81 x 236 | 2 | 66 |
| 15 | NetCologne Gesellschaft fur Telekommunikation mbH | 577,280 | 1.59 x 237 | 1 | 50 |
| 16 | ecotel communication ag | 554,496 | 1.5 x 233 | 1 | 28 |
| 17 | M-net Telekommunikations GmbH | 521,984 | 1.06 x 236 | 1 | 79 |
| 18 | Contabo GmbH | 470,016 | 1.5 x 234 | 1 | 575 |
| 19 | Host Europe GmbH | 421,888 | 1.26 x 234 | 8 | 400 |
| 20 | Leibniz-Rechenzentrum | 395,264 | 1.13 x 235 | 1 | 12 |