UNGERMANN-BASS INC.

UNGERMANN-BASS INC. holds 17 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 UNGERMANN-BASS INC. draw from a pool of about 285,212,672 possible MAC addresses in total.

Registered address: 3900 FREEDOM CIRCLE SANTA CLARA CA US 95054

All 17 prefixes

• 00:BB:F000:BB:F0:00:00:00 – 00:BB:F0:FF:FF:FF
• 00:DD:0000:DD:00:00:00:00 – 00:DD:00:FF:FF:FF
• 00:DD:0100:DD:01:00:00:00 – 00:DD:01:FF:FF:FF
• 00:DD:0200:DD:02:00:00:00 – 00:DD:02:FF:FF:FF
• 00:DD:0300:DD:03:00:00:00 – 00:DD:03:FF:FF:FF
• 00:DD:0400:DD:04:00:00:00 – 00:DD:04:FF:FF:FF
• 00:DD:0500:DD:05:00:00:00 – 00:DD:05:FF:FF:FF
• 00:DD:0600:DD:06:00:00:00 – 00:DD:06:FF:FF:FF
• 00:DD:0700:DD:07:00:00:00 – 00:DD:07:FF:FF:FF
• 00:DD:0800:DD:08:00:00:00 – 00:DD:08:FF:FF:FF
• 00:DD:0900:DD:09:00:00:00 – 00:DD:09:FF:FF:FF
• 00:DD:0A00:DD:0A:00:00:00 – 00:DD:0A:FF:FF:FF
• 00:DD:0B00:DD:0B:00:00:00 – 00:DD:0B:FF:FF:FF
• 00:DD:0C00:DD:0C:00:00:00 – 00:DD:0C:FF:FF:FF
• 00:DD:0D00:DD:0D:00:00:00 – 00:DD:0D:FF:FF:FF
• 00:DD:0E00:DD:0E:00:00:00 – 00:DD:0E:FF:FF:FF
• 00:DD:0F00:DD:0F:00:00:00 – 00:DD:0F: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.