What this means
The IEEE assigned the MA-M block 083C03C to Dongguan Development Security Intelligent 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 08:3C:03:C, it is Dongguan Development Security Intelligent Tech Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 083C03C?
083C03C is registered to Dongguan Development Security Intelligent 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. Dongguan Development Security Intelligent Tech Co., Ltd's block covers 1,048,576 addresses.
What devices use 083C03C?
Any network device with a MAC address starting 08:3C:03:C was manufactured by or for Dongguan Development Security Intelligent Tech Co., Ltd.