Who owns MAC prefix 001C1A?

001C1A is registered to Thomas Instrumentation, Inc in the IEEE MA-L registry.

What devices use 001C1A?

Any network device with a MAC address starting 00:1C:1A was manufactured by or for Thomas Instrumentation, Inc.

MA-L · OUI prefix

Thomas Instrumentation, Inc

Any MAC address starting 00:1C:1A is registered to Thomas Instrumentation, Inc in US.

OUI prefix	001C1A
Vendor	Thomas Instrumentation, Inc
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:1C:1A:00:00:00

What this means

The IEEE assigned the MA-L block 001C1A to Thomas Instrumentation, 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 00:1C:1A, it is Thomas Instrumentation, Inc hardware.

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