What this means
The IEEE assigned the MA-M block D47C449 to Suzhou Wan Dian Zhang Network Technology 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 D4:7C:44:9, it is Suzhou Wan Dian Zhang Network Technology Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix D47C449?
D47C449 is registered to Suzhou Wan Dian Zhang Network Technology 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. Suzhou Wan Dian Zhang Network Technology Co., Ltd's block covers 1,048,576 addresses.
What devices use D47C449?
Any network device with a MAC address starting D4:7C:44:9 was manufactured by or for Suzhou Wan Dian Zhang Network Technology Co., Ltd.