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 | 52,224 | 232 | 1 | 10 |
| 5 | P.A.G.M. OU | 48,901 | 218 | 2 | 113 |
| 6 | AS STV | 47,104 | 232 | 1 | 13 |
| 7 | Playtech Estonia OU | 33,024 | 232 | 1 | 143 |
| 8 | NetCrafters OU | 22,528 | 1.5 x 229 | 1 | 88 |
| 9 | BlueVPS OU | 22,528 | 1.44 x 220 | 1 | 107 |
| 10 | Information System Authority | 20,736 | 1.38 x 235 | 2 | 10 |
| 11 | Snowd Security OU | 19,456 | 0 | 1 | 76 |
| 12 | AS Telset | 16,384 | 0 | 1 | 4 |
| 13 | Aktsiaselts WaveCom | 15,618 | 232 | 1 | 23 |
| 14 | EstNOC OU | 15,360 | 1.52 x 225 | 1 | 73 |
| 15 | SmartApe OU | 10,496 | 1.13 x 235 | 2 | 25 |
| 16 | Fill Networks OU | 9,216 | 0 | 1 | 2 |
| 17 | UUS PROGRAMM | 8,960 | 0 | 1 | 6 |
| 18 | ISIF OU | 8,960 | 1.08 x 226 | 1 | 92 |
| 19 | Zone Media OU | 8,704 | 233 | 1 | 16 |
| 20 | Interhive OU | 8,448 | 0 | 1 | 33 |