What this means
The IEEE assigned the MA-M block B44D439 to AD HOC DEVELOPMENTS S.L. 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 B4:4D:43:9, it is AD HOC DEVELOPMENTS S.L hardware.
Frequently Asked Questions
Who owns MAC prefix B44D439?
B44D439 is registered to AD HOC DEVELOPMENTS S.L in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. AD HOC DEVELOPMENTS S.L's block covers 1,048,576 addresses.
What devices use B44D439?
Any network device with a MAC address starting B4:4D:43:9 was manufactured by or for AD HOC DEVELOPMENTS S.L.