What this means
The IEEE assigned the MA-M block ACEF92E to JET OPTOELECTRONICS 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 AC:EF:92:E, it is JET OPTOELECTRONICS CO., LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix ACEF92E?
ACEF92E is registered to JET OPTOELECTRONICS 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. JET OPTOELECTRONICS CO., LTD.'s block covers 1,048,576 addresses.
What devices use ACEF92E?
Any network device with a MAC address starting AC:EF:92:E was manufactured by or for JET OPTOELECTRONICS CO., LTD..