What this means
The IEEE assigned the MA-L block F42C56 to SENOR TECH 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 F4:2C:56, it is SENOR TECH CO LTD hardware.
Frequently Asked Questions
Who owns MAC prefix F42C56?
F42C56 is registered to SENOR TECH 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. SENOR TECH CO LTD's block covers 16,777,216 addresses.
What devices use F42C56?
Any network device with a MAC address starting F4:2C:56 was manufactured by or for SENOR TECH CO LTD.