What this means
The IEEE assigned the MA-M block 304950B to HANGZHOU EV-TECH 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 30:49:50:B, it is HANGZHOU EV-TECH CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 304950B?
304950B is registered to HANGZHOU EV-TECH CO.,LTD in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. HANGZHOU EV-TECH CO.,LTD's block covers 1,048,576 addresses.
What devices use 304950B?
Any network device with a MAC address starting 30:49:50:B was manufactured by or for HANGZHOU EV-TECH CO.,LTD.