What this means
The IEEE assigned the MA-L block 1C5FFF to Beijing Ereneben Information Technology Co.,Ltd Shenzhen Branch. 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 1C:5F:FF, it is Beijing Ereneben Information Technology Co.,Ltd Shenzhen Branch hardware.
Frequently Asked Questions
Who owns MAC prefix 1C5FFF?
1C5FFF is registered to Beijing Ereneben Information Technology Co.,Ltd Shenzhen Branch 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. Beijing Ereneben Information Technology Co.,Ltd Shenzhen Branch's block covers 16,777,216 addresses.
What devices use 1C5FFF?
Any network device with a MAC address starting 1C:5F:FF was manufactured by or for Beijing Ereneben Information Technology Co.,Ltd Shenzhen Branch.