What this means
The IEEE assigned the MA-L block E47B3F to BEIJING CO-CLOUD TECHNOLOGY 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 E4:7B:3F, it is BEIJING CO-CLOUD TECHNOLOGY LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix E47B3F?
E47B3F is registered to BEIJING CO-CLOUD TECHNOLOGY 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. BEIJING CO-CLOUD TECHNOLOGY LTD.'s block covers 16,777,216 addresses.
What devices use E47B3F?
Any network device with a MAC address starting E4:7B:3F was manufactured by or for BEIJING CO-CLOUD TECHNOLOGY LTD..