What this means
The IEEE assigned the MA-L block 00157F to ChuanG International Holding 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 00:15:7F, it is ChuanG International Holding CO.,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 00157F?
00157F is registered to ChuanG International Holding 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. ChuanG International Holding CO.,LTD.'s block covers 16,777,216 addresses.
What devices use 00157F?
Any network device with a MAC address starting 00:15:7F was manufactured by or for ChuanG International Holding CO.,LTD..