What this means

The IEEE assigned the MA-L block ECF37A to Forecr OU. 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:F3:7A, it is Forecr OU hardware.

Frequently Asked Questions

Who owns MAC prefix ECF37A?

ECF37A is registered to Forecr OU 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. Forecr OU's block covers 16,777,216 addresses.

What devices use ECF37A?

Any network device with a MAC address starting EC:F3:7A was manufactured by or for Forecr OU.