What this means
The IEEE assigned the MA-M block 04ECA93 to Hunan Zetian Zhihang Electronic 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 04:EC:A9:3, it is Hunan Zetian Zhihang Electronic Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 04ECA93?
04ECA93 is registered to Hunan Zetian Zhihang Electronic 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. Hunan Zetian Zhihang Electronic Technology Co., Ltd.'s block covers 1,048,576 addresses.
What devices use 04ECA93?
Any network device with a MAC address starting 04:EC:A9:3 was manufactured by or for Hunan Zetian Zhihang Electronic Technology Co., Ltd..