What this means
The IEEE assigned the MA-L block A463A1 to Inventus Power Eletronica do Brasil LTDA. 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 A4:63:A1, it is Inventus Power Eletronica do Brasil LTDA hardware.
Frequently Asked Questions
Who owns MAC prefix A463A1?
A463A1 is registered to Inventus Power Eletronica do Brasil LTDA 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. Inventus Power Eletronica do Brasil LTDA's block covers 16,777,216 addresses.
What devices use A463A1?
Any network device with a MAC address starting A4:63:A1 was manufactured by or for Inventus Power Eletronica do Brasil LTDA.