What this means
The IEEE assigned the MA-L block 489A5B to Shenzhen iComm Semiconductor 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 48:9A:5B, it is Shenzhen iComm Semiconductor CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 489A5B?
489A5B is registered to Shenzhen iComm Semiconductor 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. Shenzhen iComm Semiconductor CO.,LTD's block covers 16,777,216 addresses.
What devices use 489A5B?
Any network device with a MAC address starting 48:9A:5B was manufactured by or for Shenzhen iComm Semiconductor CO.,LTD.