Brother industries, LTD.

Brother industries, LTD. 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 Brother industries, LTD. draw from a pool of about 50,331,648 possible MAC addresses in total.

Registered address: 1-1-1, Kawagishi, Mizuho-ku, Nagoya Aichi JP 467-8562

All 3 prefixes

• 00:1B:A900:1B:A9:00:00:00 – 00:1B:A9:FF:FF:FF
• 00:80:7700:80:77:00:00:00 – 00:80:77:FF:FF:FF
• 30:05:5C30:05:5C:00:00:00 – 30:05:5C: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.