What this means
The IEEE assigned the MA-M block 303D512 to Harman Connected Services Corporation India Pvt. 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 30:3D:51:2, it is Harman Connected Services Corporation India Pvt. Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 303D512?
303D512 is registered to Harman Connected Services Corporation India Pvt. 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. Harman Connected Services Corporation India Pvt. Ltd.'s block covers 1,048,576 addresses.
What devices use 303D512?
Any network device with a MAC address starting 30:3D:51:2 was manufactured by or for Harman Connected Services Corporation India Pvt. Ltd..