What this means
The IEEE assigned the MA-L block 4088E0 to Beijing Ereneben Information Technology Limited 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 40:88:E0, it is Beijing Ereneben Information Technology Limited Shenzhen Branch hardware.
Frequently Asked Questions
Who owns MAC prefix 4088E0?
4088E0 is registered to Beijing Ereneben Information Technology Limited 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 Limited Shenzhen Branch's block covers 16,777,216 addresses.
What devices use 4088E0?
Any network device with a MAC address starting 40:88:E0 was manufactured by or for Beijing Ereneben Information Technology Limited Shenzhen Branch.