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 | 36,218,624 | 245 | 3 | 1,069 | |
| Mercedes-Benz Group AG | 16,805,888 | 1.13 x 235 | 1 | 18 | |
| Vodafone GmbH | 15,880,960 | 1.05 x 242 | 1 | 323 | |
| 4 | Telefonica Germany GmbH & Co.OHG | 8,400,640 | 1.13 x 241 | 2 | 40 |
| 5 | Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. | 7,984,896 | 1.25 x 238 | 1 | 325 |
| 6 | Hetzner Online GmbH | 3,879,424 | 1.13 x 236 | 4 | 784 |
| 7 | 1&1 Versatel GmbH | 2,470,400 | 1.4 x 237 | 1 | 674 |
| 8 | Universitaet Stuttgart | 2,325,504 | 1.56 x 236 | 1 | 100 |
| 9 | EWE TEL GmbH | 971,264 | 1.44 x 237 | 2 | 68 |
| 10 | Plusnet GmbH | 918,528 | 1.81 x 236 | 1 | 89 |
| 11 | IONOS SE | 902,144 | 1.38 x 236 | 1 | 547 |
| 12 | Deutsche Post AG | 787,200 | 0 | 1 | 14 |
| 13 | euNetworks GmbH | 580,865 | 1.81 x 236 | 3 | 61 |
| 14 | NetCologne Gesellschaft fur Telekommunikation mbH | 576,768 | 1.63 x 237 | 1 | 51 |
| 15 | Contabo GmbH | 557,568 | 1.25 x 234 | 1 | 591 |
| 16 | Tele Columbus AG | 538,624 | 1.77 x 235 | 4 | 107 |
| 17 | ecotel communication ag | 536,576 | 1.5 x 233 | 1 | 40 |
| 18 | M-net Telekommunikations GmbH | 523,008 | 1.06 x 236 | 1 | 79 |
| 19 | Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 400,896 | 1.72 x 223 | 8 | 492 |
| 20 | EntServ Deutschland GmbH | 396,032 | 0 | 1 | 12 |