18:45:B3:E Sleep Number
Every MAC address from 18:45:B3:E0:00:00 to 18:45:B3:EF:FF:FF belongs to a block the IEEE assigned to Sleep Number. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 18:45:B3:E belongs to
Written 18:45:B3:E, 18-45-B3-E or 1845B3E, depending on the system. Look up a full address.
Prefix
18:45:B3:E/28
Organization
Sleep Number
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
18:45:B3:E0:00:00
Last address
18:45:B3:EF:FF:FF
Address type
Globally unique, unicast
Registered address
1001 Third Avenue South Minneapolis MN US 55404
Parent block
Inside 18:45:B3
This MA-M block is carved from the 24-bit block 18:45:B3, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.