4C:81:BE:1 EUROSONIC Ultraschall GmbH & Co. KG
Every MAC address from 4C:81:BE:10:00:00 to 4C:81:BE:1F:FF:FF belongs to a block the IEEE assigned to EUROSONIC Ultraschall GmbH & Co. KG. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 4C:81:BE:1 belongs to
Written 4C:81:BE:1, 4C-81-BE-1 or 4C81BE1, depending on the system. Look up a full address.
Prefix
4C:81:BE:1/28
Organization
EUROSONIC Ultraschall GmbH & Co. KG
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
4C:81:BE:10:00:00
Last address
4C:81:BE:1F:FF:FF
Address type
Globally unique, unicast
Registered address
Hoheneichstr. 29 Keltern DE 75210
Parent block
Inside 4C:81:BE
This MA-M block is carved from the 24-bit block 4C:81:BE, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.