What this means
The IEEE assigned the MA-M block 8489ECC to SHINKAWA 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 84:89:EC:C, it is SHINKAWA LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 8489ECC?
8489ECC is registered to SHINKAWA 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. SHINKAWA LTD.'s block covers 1,048,576 addresses.
What devices use 8489ECC?
Any network device with a MAC address starting 84:89:EC:C was manufactured by or for SHINKAWA LTD..