What this means
The IEEE assigned the MA-L block 00073E to China Great-Wall Computer Shenzhen 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 00:07:3E, it is China Great-Wall Computer Shenzhen Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 00073E?
00073E is registered to China Great-Wall Computer Shenzhen 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. China Great-Wall Computer Shenzhen Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 00073E?
Any network device with a MAC address starting 00:07:3E was manufactured by or for China Great-Wall Computer Shenzhen Co., Ltd..