| ASN | Organization | IPs |
|---|---|---|
| AS5408 | National Infrastructures for Research and Technology S.A. | 29,952 |
| AS8617 | University of the Aegean | 8,192 |
| AS9069 | UNIWA | 8,192 |
| AS12364 | University of Macedonia Economic and Social Sciences | 4,096 |
| AS8611 | Athens University of Economics and Business | 3,072 |
| AS12402 | University of Piraeus | 2,560 |
| AS5489 | International Hellenic University | 2,560 |
| AS8581 | University of Ioannina | 2,560 |
| AS8618 | Ionion University | 1,024 |
| AS15690 | National Observatory of Athens | 768 |
| AS15948 | ICE/HT Fundamental and Technological Research | 768 |
| AS31563 | Hellenic National Meteorological Service | 768 |
| AS8991 | Hellenic Centre for Marine Research | 512 |
| AS201374 | Hellenic Parliament | 256 |
| AS8762 | Hellenic Mediterranean University | 256 |