What this means
The IEEE assigned the MA-L block B4E46B to China Mobile IOT Company Limited. 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 B4:E4:6B, it is China Mobile IOT Company Limited hardware.
Frequently Asked Questions
Who owns MAC prefix B4E46B?
B4E46B is registered to China Mobile IOT Company Limited 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. China Mobile IOT Company Limited's block covers 16,777,216 addresses.
What devices use B4E46B?
Any network device with a MAC address starting B4:E4:6B was manufactured by or for China Mobile IOT Company Limited.