What this means
The IEEE assigned the MA-L block F0C558 to U.D.Electronic Corp.. 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 F0:C5:58, it is U.D.Electronic Corp. hardware.
Frequently Asked Questions
Who owns MAC prefix F0C558?
F0C558 is registered to U.D.Electronic Corp. 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. U.D.Electronic Corp.'s block covers 16,777,216 addresses.
What devices use F0C558?
Any network device with a MAC address starting F0:C5:58 was manufactured by or for U.D.Electronic Corp..