What this means
The IEEE assigned the MA-L block BCB22B to EM-Tech. 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 BC:B2:2B, it is EM-Tech hardware.
Frequently Asked Questions
Who owns MAC prefix BCB22B?
BCB22B is registered to EM-Tech 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. EM-Tech's block covers 16,777,216 addresses.
What devices use BCB22B?
Any network device with a MAC address starting BC:B2:2B was manufactured by or for EM-Tech.