B4:4D:43:5 halstrup-walcher GmbH
Every MAC address from B4:4D:43:50:00:00 to B4:4D:43:5F:FF:FF belongs to a block the IEEE assigned to halstrup-walcher GmbH. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B4:4D:43:5 belongs to
Written B4:4D:43:5, B4-4D-43-5 or B44D435, depending on the system. Look up a full address.
Prefix
B4:4D:43:5/28
Organization
halstrup-walcher GmbH
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
B4:4D:43:50:00:00
Last address
B4:4D:43:5F:FF:FF
Address type
Globally unique, unicast
Registered address
Stegener Straße 10 Kirchzarten DE 79199
Parent block
Inside B4:4D:43
This MA-M block is carved from the 24-bit block B4:4D:43, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to halstrup-walcher GmbH
1 more block registered under the same name.