What this means
The IEEE assigned the MA-L block 780A57 to Shanghai Lightningsemi Technology 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 78:0A:57, it is Shanghai Lightningsemi Technology Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 780A57?
780A57 is registered to Shanghai Lightningsemi Technology 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. Shanghai Lightningsemi Technology Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 780A57?
Any network device with a MAC address starting 78:0A:57 was manufactured by or for Shanghai Lightningsemi Technology Co.,Ltd..