Who owns MAC prefix A4580F5?

A4580F5 is registered to CoAsia Microelectronics Corp. in the IEEE MA-M registry.

What devices use A4580F5?

Any network device with a MAC address starting A4:58:0F:5 was manufactured by or for CoAsia Microelectronics Corp..

MA-M · OUI prefix

CoAsia Microelectronics Corp.

Any MAC address starting A4:58:0F:5 is registered to CoAsia Microelectronics Corp. in TW.

OUI prefix	A4580F5
Vendor	CoAsia Microelectronics Corp.
Registry	MA-M (28-bit, medium block)
Country	TW
Example MAC	A4:58:0F:5:00:00:00

What this means

The IEEE assigned the MA-M block A4580F5 to CoAsia Microelectronics Corp.. 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 A4:58:0F:5, it is CoAsia Microelectronics Corp. hardware.

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