List of the top 20 organizations with the largest IP allocations in Estonia
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| Telia Eesti AS | 612,096 | 234 | 2 | 38 | |
| Elisa Eesti AS | 177,408 | 1.13 x 235 | 1 | 23 | |
| Haridus- ja Teadusministeerium | 66,560 | 232 | 1 | 3 | |
| 4 | AS INFONET | 52,480 | 232 | 1 | 11 |
| 5 | P.A.G.M. OU | 49,156 | 218 | 2 | 113 |
| 6 | AS STV | 47,104 | 232 | 1 | 13 |
| 7 | Playtech Estonia OU | 32,768 | 232 | 1 | 140 |
| 8 | Information System Authority | 20,736 | 1.38 x 235 | 2 | 10 |
| 9 | BlueVPS OU | 20,480 | 1.31 x 220 | 1 | 97 |
| 10 | AS Telset | 16,384 | 0 | 1 | 4 |
| 11 | Aktsiaselts WaveCom | 15,363 | 232 | 1 | 23 |
| 12 | EstNOC OU | 13,568 | 1.04 x 224 | 1 | 64 |
| 13 | Snowd Security OU | 13,056 | 0 | 1 | 51 |
| 14 | NetCrafters OU | 10,752 | 216 | 1 | 43 |
| 15 | Fill Ltd. | 9,216 | 0 | 1 | 2 |
| 16 | UUS PROGRAMM | 8,960 | 0 | 1 | 6 |
| 17 | Zone Media OU | 8,704 | 233 | 1 | 16 |
| 18 | SmartApe OU | 8,192 | 1.13 x 235 | 2 | 21 |
| 19 | Compic OU | 7,168 | 232 | 1 | 4 |
| 20 | Riigi Info- ja Kommunikatsioonitehnoloogia Keskus | 7,168 | 1.32 x 232 | 1 | 41 |