What this means
The IEEE assigned the MA-L block 903C1D to HISENSE VISUAL TECHNOLOGY 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 90:3C:1D, it is HISENSE VISUAL TECHNOLOGY CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 903C1D?
903C1D is registered to HISENSE VISUAL TECHNOLOGY 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. HISENSE VISUAL TECHNOLOGY CO.,LTD's block covers 16,777,216 addresses.
What devices use 903C1D?
Any network device with a MAC address starting 90:3C:1D was manufactured by or for HISENSE VISUAL TECHNOLOGY CO.,LTD.