Who owns MAC prefix 004057?

004057 is registered to LOCKHEED - SANDERS in the IEEE MA-L registry.

What devices use 004057?

Any network device with a MAC address starting 00:40:57 was manufactured by or for LOCKHEED - SANDERS.

MA-L · OUI prefix

LOCKHEED - SANDERS

Any MAC address starting 00:40:57 is registered to LOCKHEED - SANDERS in US.

OUI prefix	004057
Vendor	LOCKHEED - SANDERS
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:40:57:00:00:00

What this means

The IEEE assigned the MA-L block 004057 to LOCKHEED - SANDERS. 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 00:40:57, it is LOCKHEED - SANDERS hardware.

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