40:11:75:9 ADH Guardian USA
Every MAC address from 40:11:75:90:00:00 to 40:11:75:9F:FF:FF belongs to a block the IEEE assigned to ADH Guardian USA. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 40:11:75:9 belongs to
Written 40:11:75:9, 40-11-75-9 or 4011759, depending on the system. Look up a full address.
Prefix
40:11:75:9/28
Organization
ADH Guardian USA
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
40:11:75:90:00:00
Last address
40:11:75:9F:FF:FF
Address type
Globally unique, unicast
Registered address
122 Penn St El Segundo CA US 90245
Parent block
Inside 40:11:75
This MA-M block is carved from the 24-bit block 40:11:75, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.