28:B7:7C:A Simaudio Ltd
Every MAC address from 28:B7:7C:A0:00:00 to 28:B7:7C:AF:FF:FF belongs to a block the IEEE assigned to Simaudio Ltd. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 28:B7:7C:A belongs to
Written 28:B7:7C:A, 28-B7-7C-A or 28B77CA, depending on the system. Look up a full address.
Prefix
28:B7:7C:A/28
Organization
Simaudio Ltd
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
28:B7:7C:A0:00:00
Last address
28:B7:7C:AF:FF:FF
Address type
Globally unique, unicast
Registered address
1345 rue Newton Boucherville Quebec CA J4B 5H2
Parent block
Inside 28:B7:7C
This MA-M block is carved from the 24-bit block 28:B7:7C, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.