What this means
The IEEE assigned the MA-L block 140020 to LongSung Technology (Shanghai) 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 14:00:20, it is LongSung Technology (Shanghai) Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 140020?
140020 is registered to LongSung Technology (Shanghai) 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. LongSung Technology (Shanghai) Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 140020?
Any network device with a MAC address starting 14:00:20 was manufactured by or for LongSung Technology (Shanghai) Co.,Ltd..