What this means
The IEEE assigned the MA-L block 00E400 to Sichuan Changhong Electric 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:E4:00, it is Sichuan Changhong Electric Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 00E400?
00E400 is registered to Sichuan Changhong Electric 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. Sichuan Changhong Electric Ltd.'s block covers 16,777,216 addresses.
What devices use 00E400?
Any network device with a MAC address starting 00:E4:00 was manufactured by or for Sichuan Changhong Electric Ltd..