The IEEE registry carries 2 blocks registered to OPTOKON, a.s., together 16.8 million addresses, first observed 3 Dec 2024, most recently 2 Apr 2026.
Registered in CZ.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 28:69:26 | MA-L | 16.8 million | CZ | 2 Apr 2026 |
| 8C:1F:64:BC:A | MA-S | 4.1 thousand | CZ | 3 Dec 2024 |
Every block registered to OPTOKON, a.s. in the IEEE registries, complete. Free-text search also matches former owners.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.