58:47:CA:8 Birger Engineering, Inc.
Every MAC address from 58:47:CA:80:00:00 to 58:47:CA:8F:FF:FF belongs to a block the IEEE assigned to Birger Engineering, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 58:47:CA:8 belongs to
Written 58:47:CA:8, 58-47-CA-8 or 5847CA8, depending on the system. Look up a full address.
Prefix
58:47:CA:8/28
Organization
Birger Engineering, Inc.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
58:47:CA:80:00:00
Last address
58:47:CA:8F:FF:FF
Address type
Globally unique, unicast
Registered address
42 Chauncy Street Suite 1A BOSTON MA US 02111
Parent block
Inside 58:47:CA
This MA-M block is carved from the 24-bit block 58:47:CA, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.