8C:1F:64:B7:3 Comm-ence, Inc.
Every MAC address from 8C:1F:64:B7:30:00 to 8C:1F:64:B7:3F:FF belongs to a block the IEEE assigned to Comm-ence, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 8C:1F:64:B7:3 belongs to
Written 8C:1F:64:B7:3, 8C-1F-64-B7-3 or 8C1F64B73, depending on the system. Look up a full address.
Prefix
8C:1F:64:B7:3/36
Organization
Comm-ence, Inc.
Registry
MA-S (36 bits)
Addresses
4,096
First address
8C:1F:64:B7:30:00
Last address
8C:1F:64:B7:3F:FF
Address type
Globally unique, unicast
Registered address
1813 Limerick Ct Darien IL US 60561
Parent block
Inside 8C:1F:64
This MA-S block is carved from the 24-bit block 8C:1F:64, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.