List of the top 20 organizations with the largest IP allocations in Denmark
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| TDC Holding A/S | 5,384,192 | 1.5 x 235 | 2 | 168 | |
| Telenor A/S | 2,315,776 | 1.13 x 235 | 1 | 28 | |
| GlobalConnect A/S | 495,104 | 1.81 x 236 | 5 | 204 | |
| 4 | Stofa A/S | 407,552 | 1.41 x 237 | 4 | 41 |
| 5 | DANSK KABEL TV A/S | 340,992 | 1.06 x 236 | 1 | 13 |
| 6 | FIBIA P/S | 333,824 | 232 | 1 | 13 |
| 7 | Norlys Fibernet A/S | 207,872 | 233 | 1 | 19 |
| 8 | Sentia Denmark A/S | 182,272 | 1.94 x 236 | 6 | 84 |
| 9 | DSV Panalpina A/S | 167,680 | 235 | 1 | 25 |
| 10 | KMD A/S | 90,624 | 232 | 1 | 5 |
| 11 | Post Danmark A/S | 82,176 | 0 | 1 | 3 |
| 12 | DXC Technology Danmark A/S | 76,800 | 232 | 2 | 14 |
| 13 | NNIT A/S | 69,888 | 0 | 2 | 3 |
| 14 | Aura Fiber OE A/S | 67,072 | 232 | 1 | 7 |
| 15 | team.blue Denmark A/S | 53,760 | 1.16 x 235 | 4 | 51 |
| 16 | IT RELATION AS | 45,824 | 235 | 3 | 63 |
| 17 | Dansk Net A/S | 36,864 | 0 | 1 | 5 |
| 18 | Bolignet-Aarhus | 35,328 | 0 | 1 | 4 |
| 19 | One.com A/S | 35,072 | 1.13 x 233 | 1 | 30 |
| 20 | Hiper A/S | 33,792 | 235 | 1 | 11 |