What this means
The IEEE assigned the MA-M block D0C857B to CHUNGHSIN INTERNATIONAL 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 D0:C8:57:B, it is CHUNGHSIN INTERNATIONAL ELECTRONICS CO.,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix D0C857B?
D0C857B is registered to CHUNGHSIN INTERNATIONAL ELECTRONICS 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. CHUNGHSIN INTERNATIONAL ELECTRONICS CO.,LTD.'s block covers 1,048,576 addresses.
What devices use D0C857B?
Any network device with a MAC address starting D0:C8:57:B was manufactured by or for CHUNGHSIN INTERNATIONAL ELECTRONICS CO.,LTD..