What this means
The IEEE assigned the MA-L block 8C53F7 to A&D ENGINEERING 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 8C:53:F7, it is A&D ENGINEERING CO., LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 8C53F7?
8C53F7 is registered to A&D ENGINEERING 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. A&D ENGINEERING CO., LTD.'s block covers 16,777,216 addresses.
What devices use 8C53F7?
Any network device with a MAC address starting 8C:53:F7 was manufactured by or for A&D ENGINEERING CO., LTD..