What this means
The IEEE assigned the MA-L block 74C90F to Microchip Technologies Inc. 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 74:C9:0F, it is Microchip Technologies Inc hardware.
Frequently Asked Questions
Who owns MAC prefix 74C90F?
74C90F is registered to Microchip Technologies Inc 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. Microchip Technologies Inc's block covers 16,777,216 addresses.
What devices use 74C90F?
Any network device with a MAC address starting 74:C9:0F was manufactured by or for Microchip Technologies Inc.