What this means
The IEEE assigned the MA-M block C4A5593 to X-speed lnformation 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 C4:A5:59:3, it is X-speed lnformation Technology Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix C4A5593?
C4A5593 is registered to X-speed lnformation 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. X-speed lnformation Technology Co.,Ltd's block covers 1,048,576 addresses.
What devices use C4A5593?
Any network device with a MAC address starting C4:A5:59:3 was manufactured by or for X-speed lnformation Technology Co.,Ltd.