8C:1F:64:81:3 Pribusin Inc.
Every MAC address from 8C:1F:64:81:30:00 to 8C:1F:64:81:3F:FF belongs to a block the IEEE assigned to Pribusin Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 8C:1F:64:81:3 belongs to
Written 8C:1F:64:81:3, 8C-1F-64-81-3 or 8C1F64813, depending on the system. Look up a full address.
Prefix
8C:1F:64:81:3/36
Organization
Pribusin Inc.
Registry
MA-S (36 bits)
Addresses
4,096
First address
8C:1F:64:81:30:00
Last address
8C:1F:64:81:3F:FF
Address type
Globally unique, unicast
Registered address
743 Marquette Ave. Muskegon MI US 49442
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.