What this means
The IEEE assigned the MA-L block 903D5A to Shenzhen Wision Technology Holding Limited. 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 90:3D:5A, it is Shenzhen Wision Technology Holding Limited hardware.
Frequently Asked Questions
Who owns MAC prefix 903D5A?
903D5A is registered to Shenzhen Wision Technology Holding Limited 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 Wision Technology Holding Limited's block covers 16,777,216 addresses.
What devices use 903D5A?
Any network device with a MAC address starting 90:3D:5A was manufactured by or for Shenzhen Wision Technology Holding Limited.