What this means
The IEEE assigned the MA-L block 001EFC to JSC "MASSA-K". 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 00:1E:FC, it is JSC "MASSA-K" hardware.
Frequently Asked Questions
Who owns MAC prefix 001EFC?
001EFC is registered to JSC "MASSA-K" 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. JSC "MASSA-K"'s block covers 16,777,216 addresses.
What devices use 001EFC?
Any network device with a MAC address starting 00:1E:FC was manufactured by or for JSC "MASSA-K".