Sumitomo Electric Industries, Ltd

Sumitomo Electric Industries, Ltd holds 8 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 Sumitomo Electric Industries, Ltd draw from a pool of about 134,217,728 possible MAC addresses in total.

Registered address: 1-1-3, Shimaya, Konohana-ku Osaka JP 554-0024

All 8 prefixes

• 00:00:5F00:00:5F:00:00:00 – 00:00:5F:FF:FF:FF
• 00:08:F600:08:F6:00:00:00 – 00:08:F6:FF:FF:FF
• 00:0B:A200:0B:A2:00:00:00 – 00:0B:A2:FF:FF:FF
• 00:1C:FC00:1C:FC:00:00:00 – 00:1C:FC:FF:FF:FF
• 00:25:DC00:25:DC:00:00:00 – 00:25:DC:FF:FF:FF
• 08:4E:BF08:4E:BF:00:00:00 – 08:4E:BF:FF:FF:FF
• 44:38:8C44:38:8C:00:00:00 – 44:38:8C:FF:FF:FF
• A4:DE:26A4:DE:26:00:00:00 – A4:DE:26: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.