What this means
The IEEE assigned the MA-L block 44BDDE to BHTC GmbH. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 44:BD:DE, it is BHTC GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 44BDDE?
44BDDE is registered to BHTC GmbH in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. BHTC GmbH's block covers 16,777,216 addresses.
What devices use 44BDDE?
Any network device with a MAC address starting 44:BD:DE was manufactured by or for BHTC GmbH.