List of the top 20 organizations with the largest IP allocations in Denmark
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| TDC A/S | 5,571,072 | 1.63 x 235 | 1 | 159 | |
| Telenor A/S | 2,315,776 | 1.13 x 235 | 1 | 28 | |
| GlobalConnect A/S | 499,200 | 1.75 x 236 | 6 | 217 | |
| 4 | Stofa A/S | 409,856 | 1.25 x 236 | 4 | 47 |
| 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 | 1.5 x 233 | 1 | 20 |
| 8 | Sentia Denmark A/S | 124,416 | 1.47 x 237 | 5 | 63 |
| 9 | DXC Technology Danmark A/S | 90,880 | 0 | 1 | 52 |
| 10 | KMD A/S | 90,624 | 232 | 1 | 5 |
| 11 | Post Danmark A/S | 82,176 | 0 | 1 | 3 |
| 12 | DSV Panalpina A/S | 78,848 | 235 | 1 | 13 |
| 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 | 55,296 | 1.08 x 236 | 3 | 50 |
| 16 | IT RELATION AS | 44,032 | 235 | 4 | 69 |
| 17 | Bolignet-Aarhus | 35,328 | 0 | 1 | 4 |
| 18 | Hiper A/S | 33,792 | 235 | 1 | 11 |
| 19 | Styrelsen for it og laering | 33,536 | 217 | 1 | 4 |
| 20 | Dansk Net A/S | 32,768 | 0 | 1 | 4 |