What this means
The IEEE assigned the MA-L block 0004FF to Acronet Co., 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 00:04:FF, it is Acronet Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 0004FF?
0004FF is registered to Acronet Co., 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. Acronet Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 0004FF?
Any network device with a MAC address starting 00:04:FF was manufactured by or for Acronet Co., Ltd..