Who owns MAC prefix 8C1F64A7B?

8C1F64A7B is registered to CPAT Flex Inc. in the IEEE MA-S registry.

What devices use 8C1F64A7B?

Any network device with a MAC address starting 8C:1F:64:A7:B was manufactured by or for CPAT Flex Inc..

MA-S · OUI prefix

CPAT Flex Inc.

Any MAC address starting 8C:1F:64:A7:B is registered to CPAT Flex Inc..

OUI prefix	8C1F64A7B
Vendor	CPAT Flex Inc.
Registry	MA-S (36-bit, small block)
Example MAC	8C:1F:64:A7:B:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F64A7B to CPAT Flex 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 8C:1F:64:A7:B, it is CPAT Flex Inc. hardware.

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