What this means
The IEEE assigned the MA-L block F02329 to SHOWA DENKI 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 F0:23:29, it is SHOWA DENKI CO.,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix F02329?
F02329 is registered to SHOWA DENKI 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. SHOWA DENKI CO.,LTD.'s block covers 16,777,216 addresses.
What devices use F02329?
Any network device with a MAC address starting F0:23:29 was manufactured by or for SHOWA DENKI CO.,LTD..