Crystal Group, Inc.

Crystal Group, Inc. 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 Crystal Group, Inc. draw from a pool of about 33,554,432 possible MAC addresses in total.

Registered address: 850 KACENA RD. HIAWATHA IA US 52233

All 2 prefixes

• 00:90:D600:90:D6:00:00:00 – 00:90:D6:FF:FF:FF
• 00:91:D600:91:D6:00:00:00 – 00:91:D6: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.