Toshiba Corp.

Toshiba Corp. holds 3 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 Toshiba Corp. draw from a pool of about 50,331,648 possible MAC addresses in total.

Registered address: 1-1 Shibaura 1-Chome, Minato-Ku Tokyo JP 105-8001

All 3 prefixes

• 00:5F:BF00:5F:BF:00:00:00 – 00:5F:BF:FF:FF:FF
• 28:FF:B228:FF:B2:00:00:00 – 28:FF:B2:FF:FF:FF
• EC:21:25EC:21:25:00:00:00 – EC:21:25: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.