What this means
The IEEE assigned the MA-L block 001FA3 to T&W Electronics(Shenzhen)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 00:1F:A3, it is T&W Electronics(Shenzhen)Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 001FA3?
001FA3 is registered to T&W Electronics(Shenzhen)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. T&W Electronics(Shenzhen)Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 001FA3?
Any network device with a MAC address starting 00:1F:A3 was manufactured by or for T&W Electronics(Shenzhen)Co.,Ltd..