What this means
The IEEE assigned the MA-M block A83FA1B to Exel s.r.l. unipersonale. 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 A8:3F:A1:B, it is Exel s.r.l. unipersonale hardware.
Frequently Asked Questions
Who owns MAC prefix A83FA1B?
A83FA1B is registered to Exel s.r.l. unipersonale 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. Exel s.r.l. unipersonale's block covers 1,048,576 addresses.
What devices use A83FA1B?
Any network device with a MAC address starting A8:3F:A1:B was manufactured by or for Exel s.r.l. unipersonale.