What this means
The IEEE assigned the MA-L block 487B5E to SMT TELECOMM HK. 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 48:7B:5E, it is SMT TELECOMM HK hardware.
Frequently Asked Questions
Who owns MAC prefix 487B5E?
487B5E is registered to SMT TELECOMM HK 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. SMT TELECOMM HK's block covers 16,777,216 addresses.
What devices use 487B5E?
Any network device with a MAC address starting 48:7B:5E was manufactured by or for SMT TELECOMM HK.