What this means
The IEEE assigned the MA-L block 381C4A to SIMCom Wireless Solutions 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 38:1C:4A, it is SIMCom Wireless Solutions Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 381C4A?
381C4A is registered to SIMCom Wireless Solutions 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. SIMCom Wireless Solutions Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 381C4A?
Any network device with a MAC address starting 38:1C:4A was manufactured by or for SIMCom Wireless Solutions Co.,Ltd..