What this means
The IEEE assigned the MA-L block 18C501 to SHENZHEN GONGJIN ELECTRONICS CO.,LT. 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 18:C5:01, it is SHENZHEN GONGJIN ELECTRONICS CO.,LT hardware.
Frequently Asked Questions
Who owns MAC prefix 18C501?
18C501 is registered to SHENZHEN GONGJIN ELECTRONICS CO.,LT 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. SHENZHEN GONGJIN ELECTRONICS CO.,LT's block covers 16,777,216 addresses.
What devices use 18C501?
Any network device with a MAC address starting 18:C5:01 was manufactured by or for SHENZHEN GONGJIN ELECTRONICS CO.,LT.