Who owns MAC prefix 1001CA?

1001CA is registered to Ashley Butterworth in the IEEE MA-L registry.

What devices use 1001CA?

Any network device with a MAC address starting 10:01:CA was manufactured by or for Ashley Butterworth.

MA-L · OUI prefix

Ashley Butterworth

Any MAC address starting 10:01:CA is registered to Ashley Butterworth in US.

OUI prefix	1001CA
Vendor	Ashley Butterworth
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	10:01:CA:00:00:00

What this means

The IEEE assigned the MA-L block 1001CA to Ashley Butterworth. 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 10:01:CA, it is Ashley Butterworth hardware.

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