What this means
The IEEE assigned the MA-L block 74051D to Jiangxi Risound Electronics 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 74:05:1D, it is Jiangxi Risound Electronics Co.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 74051D?
74051D is registered to Jiangxi Risound Electronics 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. Jiangxi Risound Electronics Co.,LTD's block covers 16,777,216 addresses.
What devices use 74051D?
Any network device with a MAC address starting 74:05:1D was manufactured by or for Jiangxi Risound Electronics Co.,LTD.