What this means
The IEEE assigned the MA-L block 00051B to Magic Control Technology Corporation. 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 00:05:1B, it is Magic Control Technology Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 00051B?
00051B is registered to Magic Control Technology Corporation 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. Magic Control Technology Corporation's block covers 16,777,216 addresses.
What devices use 00051B?
Any network device with a MAC address starting 00:05:1B was manufactured by or for Magic Control Technology Corporation.