90:F4:21:C ACOBA
Every MAC address from 90:F4:21:C0:00:00 to 90:F4:21:CF:FF:FF belongs to a block the IEEE assigned to ACOBA. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 90:F4:21:C belongs to
Written 90:F4:21:C, 90-F4-21-C or 90F421C, depending on the system. Look up a full address.
Prefix
90:F4:21:C/28
Organization
ACOBA
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
90:F4:21:C0:00:00
Last address
90:F4:21:CF:FF:FF
Address type
Globally unique, unicast
Registered address
91 rue du faubourg saint honore PARIS PARIS FR 75008
Parent block
Inside 90:F4:21
This MA-M block is carved from the 24-bit block 90:F4:21, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.