64:FB:81:F Private
Every MAC address from 64:FB:81:F0:00:00 to 64:FB:81:FF:FF:FF belongs to a block the IEEE assigned to Private. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 64:FB:81:F belongs to
Written 64:FB:81:F, 64-FB-81-F or 64FB81F, depending on the system. Look up a full address.
Prefix
64:FB:81:F/28
Organization
Private
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
64:FB:81:F0:00:00
Last address
64:FB:81:FF:FF:FF
Address type
Globally unique, unicast
Parent block
Inside 64:FB:81
This MA-M block is carved from the 24-bit block 64:FB:81, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.