What this means
The IEEE assigned the MA-M block E81863E to Acopian Technical Company. 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 E8:18:63:E, it is Acopian Technical Company hardware.
Frequently Asked Questions
Who owns MAC prefix E81863E?
E81863E is registered to Acopian Technical Company 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. Acopian Technical Company's block covers 1,048,576 addresses.
What devices use E81863E?
Any network device with a MAC address starting E8:18:63:E was manufactured by or for Acopian Technical Company.