What this means
The IEEE assigned the MA-L block 906C4B to Advance Security Electronics. 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 90:6C:4B, it is Advance Security Electronics hardware.
Frequently Asked Questions
Who owns MAC prefix 906C4B?
906C4B is registered to Advance Security Electronics 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. Advance Security Electronics's block covers 16,777,216 addresses.
What devices use 906C4B?
Any network device with a MAC address starting 90:6C:4B was manufactured by or for Advance Security Electronics.