What this means
The IEEE assigned the MA-L block 001B3B to Yi-Qing 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 00:1B:3B, it is Yi-Qing CO., LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 001B3B?
001B3B is registered to Yi-Qing 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. Yi-Qing CO., LTD's block covers 16,777,216 addresses.
What devices use 001B3B?
Any network device with a MAC address starting 00:1B:3B was manufactured by or for Yi-Qing CO., LTD.