What this means
The IEEE assigned the MA-L block 303955 to Shenzhen Jinhengjia Electronic 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 30:39:55, it is Shenzhen Jinhengjia Electronic Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 303955?
303955 is registered to Shenzhen Jinhengjia Electronic 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. Shenzhen Jinhengjia Electronic Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 303955?
Any network device with a MAC address starting 30:39:55 was manufactured by or for Shenzhen Jinhengjia Electronic Co., Ltd..