Communication Machinery Corporation

Communication Machinery Corporation 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 Communication Machinery Corporation draw from a pool of about 50,331,648 possible MAC addresses in total.

Registered address: 1226 ANACAPA SANTA BARBARA CA US 93101

All 3 prefixes

• 00:0B:1600:0B:16:00:00:00 – 00:0B:16:FF:FF:FF
• 00:CF:1C00:CF:1C:00:00:00 – 00:CF:1C:FF:FF:FF
• 02:CF:1C02:CF:1C:00:00:00 – 02:CF:1C: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.