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 | 175,360 | 1.13 x 235 | 1 | 22 | |
| Haridus- ja Teadusministeerium | 66,560 | 232 | 1 | 3 | |
| 4 | AS INFONET | 52,480 | 232 | 1 | 11 |
| 5 | P.A.G.M. OU | 51,200 | 218 | 2 | 114 |
| 6 | AS STV | 47,104 | 232 | 1 | 13 |
| 7 | Playtech Estonia OU | 33,536 | 232 | 1 | 142 |
| 8 | Information System Authority | 20,736 | 1.38 x 235 | 2 | 10 |
| 9 | BlueVPS OU | 18,176 | 1.31 x 220 | 1 | 89 |
| 10 | AS Telset | 16,384 | 0 | 1 | 4 |
| 11 | Aktsiaselts WaveCom | 14,849 | 232 | 1 | 19 |
| 12 | EstNOC OY | 13,057 | 1.05 x 224 | 1 | 64 |
| 13 | ISIF OU | 9,216 | 1.07 x 226 | 1 | 79 |
| 14 | Fill Ltd. | 9,216 | 0 | 1 | 2 |
| 15 | UUS PROGRAMM | 8,960 | 0 | 1 | 6 |
| 16 | Zone Media OU | 8,704 | 232 | 1 | 16 |
| 17 | Compic OU | 7,168 | 232 | 1 | 4 |
| 18 | RJ Network OU | 6,912 | 236 | 1 | 30 |
| 19 | ESTOXY OU | 6,656 | 218 | 3 | 30 |
| 20 | Brainoza OU | 5,888 | 233 | 1 | 28 |