What this means
The IEEE assigned the MA-L block 040312 to Hangzhou Hikvision Digital 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 04:03:12, it is Hangzhou Hikvision Digital Technology Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 040312?
040312 is registered to Hangzhou Hikvision Digital 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. Hangzhou Hikvision Digital Technology Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 040312?
Any network device with a MAC address starting 04:03:12 was manufactured by or for Hangzhou Hikvision Digital Technology Co.,Ltd..