What this means
The IEEE assigned the MA-L block EC2125 to Toshiba 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 EC:21:25, it is Toshiba Corp. hardware.
Frequently Asked Questions
Who owns MAC prefix EC2125?
EC2125 is registered to Toshiba Corp. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Toshiba Corp.'s block covers 16,777,216 addresses.
What devices use EC2125?
Any network device with a MAC address starting EC:21:25 was manufactured by or for Toshiba Corp..