What this means
The IEEE assigned the MA-L block 440BAB to Positivo Tecnologia S.A.. 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 44:0B:AB, it is Positivo Tecnologia S.A. hardware.
Frequently Asked Questions
Who owns MAC prefix 440BAB?
440BAB is registered to Positivo Tecnologia S.A. 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. Positivo Tecnologia S.A.'s block covers 16,777,216 addresses.
What devices use 440BAB?
Any network device with a MAC address starting 44:0B:AB was manufactured by or for Positivo Tecnologia S.A..