64:31:39:B Alphago GmbH
Every MAC address from 64:31:39:B0:00:00 to 64:31:39:BF:FF:FF belongs to a block the IEEE assigned to Alphago GmbH. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 64:31:39:B belongs to
Written 64:31:39:B, 64-31-39-B or 643139B, depending on the system. Look up a full address.
Prefix
64:31:39:B/28
Organization
Alphago GmbH
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
64:31:39:B0:00:00
Last address
64:31:39:BF:FF:FF
Address type
Globally unique, unicast
Registered address
Hauptstr. 18 Bergheim NRW DE 50126
Parent block
Inside 64:31:39
This MA-M block is carved from the 24-bit block 64:31:39, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.