General Datacomm LLC

General Datacomm LLC holds 2 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 General Datacomm LLC draw from a pool of about 33,554,432 possible MAC addresses in total.

Registered address: 353 Christian Street, Suite 4 Oxford CT US 06478

All 2 prefixes

• 00:12:1900:12:19:00:00:00 – 00:12:19:FF:FF:FF
• 00:C0:6400:C0:64:00:00:00 – 00:C0:64: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.