What this means
The IEEE assigned the MA-M block 78D4F19 to shanghai baudcom communication device 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 78:D4:F1:9, it is shanghai baudcom communication device co.,ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 78D4F19?
78D4F19 is registered to shanghai baudcom communication device 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. shanghai baudcom communication device co.,ltd's block covers 1,048,576 addresses.
What devices use 78D4F19?
Any network device with a MAC address starting 78:D4:F1:9 was manufactured by or for shanghai baudcom communication device co.,ltd.