What this means
The IEEE assigned the MA-L block 447BC4 to DualShine Technology(SZ)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 44:7B:C4, it is DualShine Technology(SZ)Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 447BC4?
447BC4 is registered to DualShine Technology(SZ)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. DualShine Technology(SZ)Co.,Ltd's block covers 16,777,216 addresses.
What devices use 447BC4?
Any network device with a MAC address starting 44:7B:C4 was manufactured by or for DualShine Technology(SZ)Co.,Ltd.