Who owns MAC prefix 001B7D?

001B7D is registered to CXR Anderson Jacobson in the IEEE MA-L registry.

What devices use 001B7D?

Any network device with a MAC address starting 00:1B:7D was manufactured by or for CXR Anderson Jacobson.

MA-L · OUI prefix

CXR Anderson Jacobson

Any MAC address starting 00:1B:7D is registered to CXR Anderson Jacobson in FR.

OUI prefix	001B7D
Vendor	CXR Anderson Jacobson
Registry	MA-L (24-bit, large block)
Country	FR
Example MAC	00:1B:7D:00:00:00

What this means

The IEEE assigned the MA-L block 001B7D to CXR Anderson Jacobson. 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 00:1B:7D, it is CXR Anderson Jacobson hardware.

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