Who owns MAC prefix 00506B?

00506B is registered to SPX-ATEG in the IEEE MA-L registry.

What devices use 00506B?

Any network device with a MAC address starting 00:50:6B was manufactured by or for SPX-ATEG.

MA-L · OUI prefix

SPX-ATEG

Any MAC address starting 00:50:6B is registered to SPX-ATEG in US.

OUI prefix	00506B
Vendor	SPX-ATEG
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:50:6B:00:00:00

What this means

The IEEE assigned the MA-L block 00506B to SPX-ATEG. 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 00:50:6B, it is SPX-ATEG hardware.

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