What this means
The IEEE assigned the MA-M block 901564E to Guiyag Electrlcal Control Equipment 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 90:15:64:E, it is Guiyag Electrlcal Control Equipment Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 901564E?
901564E is registered to Guiyag Electrlcal Control Equipment 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. Guiyag Electrlcal Control Equipment Co.,Ltd's block covers 1,048,576 addresses.
What devices use 901564E?
Any network device with a MAC address starting 90:15:64:E was manufactured by or for Guiyag Electrlcal Control Equipment Co.,Ltd.