What this means
The IEEE assigned the MA-L block 0021FA to A4SP Technologies Ltd.. 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 00:21:FA, it is A4SP Technologies Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 0021FA?
0021FA is registered to A4SP Technologies Ltd. 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. A4SP Technologies Ltd.'s block covers 16,777,216 addresses.
What devices use 0021FA?
Any network device with a MAC address starting 00:21:FA was manufactured by or for A4SP Technologies Ltd..