What this means
The IEEE assigned the MA-L block 74546B to hangzhou zhiyi communication 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 74:54:6B, it is hangzhou zhiyi communication co., ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 74546B?
74546B is registered to hangzhou zhiyi communication 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. hangzhou zhiyi communication co., ltd's block covers 16,777,216 addresses.
What devices use 74546B?
Any network device with a MAC address starting 74:54:6B was manufactured by or for hangzhou zhiyi communication co., ltd.