ESSYS

ESSYS holds 5 OUI prefixes in the IEEE registry. Each prefix is the first three octets of a MAC address and covers a block of 16,777,216 addresses, so devices built by ESSYS draw from a pool of about 83,886,080 possible MAC addresses in total.

Registered address: Daerung Post Tower 5 15F Seoul Gasan-Dong, Geumchen-gu KR 153-702

All 5 prefixes

• 28:CF:0828:CF:08:00:00:00 – 28:CF:08:FF:FF:FF
• 48:7A:FF48:7A:FF:00:00:00 – 48:7A:FF:FF:FF:FF
• A8:B9:B3A8:B9:B3:00:00:00 – A8:B9:B3:FF:FF:FF
• C0:CA:A2C0:CA:A2:00:00:00 – C0:CA:A2:FF:FF:FF
• EC:AB:3EEC:AB:3E:00:00:00 – EC:AB:3E:FF:FF:FF

Have a full MAC address? Look it up to see which of these prefixes it belongs to — or browse the full manufacturer directory.