What this means
The IEEE assigned the MA-L block A4FC77 to Mega Well Limited. 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:FC:77, it is Mega Well Limited hardware.
Frequently Asked Questions
Who owns MAC prefix A4FC77?
A4FC77 is registered to Mega Well Limited 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. Mega Well Limited's block covers 16,777,216 addresses.
What devices use A4FC77?
Any network device with a MAC address starting A4:FC:77 was manufactured by or for Mega Well Limited.