Who owns MAC prefix 00504E?

00504E is registered to SIERRA MONITOR CORP. in the IEEE MA-L registry.

What devices use 00504E?

Any network device with a MAC address starting 00:50:4E was manufactured by or for SIERRA MONITOR CORP..

MA-L · OUI prefix

SIERRA MONITOR CORP.

Any MAC address starting 00:50:4E is registered to SIERRA MONITOR CORP. in US.

OUI prefix	00504E
Vendor	SIERRA MONITOR CORP.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:50:4E:00:00:00

What this means

The IEEE assigned the MA-L block 00504E to SIERRA MONITOR CORP.. 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 00:50:4E, it is SIERRA MONITOR CORP. hardware.

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