ESSYS MAC address blocks
The IEEE registry carries 5 blocks registered to ESSYS, together 83.9 million addresses, first observed 22 Nov 2013, most recently 29 May 2026.
Registered in KR.
Cumulative address space by first-observed date on a linear scale sized to this chart; hover for date and total.
| Prefix |
Block |
Addresses |
Country |
First registered |
| 28:CF:08 | MA-L | 16.8 million | KR | 13 Jul 2017 |
| 48:7A:FF | MA-L | 16.8 million | KR | 21 Jan 2020 |
| A8:B9:B3 | MA-L | 16.8 million | KR | 22 Nov 2013 |
| C0:CA:A2 | MA-L | 16.8 million | KR | 29 May 2026 |
| EC:AB:3E | MA-L | 16.8 million | KR | 31 May 2023 |
Every block registered to ESSYS 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.