What this means
The IEEE assigned the MA-L block D4A3EB 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 D4:A3:EB, it is Shenzhen iComm Semiconductor CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix D4A3EB?
D4A3EB 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 D4A3EB?
Any network device with a MAC address starting D4:A3:EB was manufactured by or for Shenzhen iComm Semiconductor CO.,LTD.