Who owns MAC prefix 00133D?

00133D is registered to Micro Memory Curtiss Wright Co in the IEEE MA-L registry.

What devices use 00133D?

Any network device with a MAC address starting 00:13:3D was manufactured by or for Micro Memory Curtiss Wright Co.

MA-L · OUI prefix

Micro Memory Curtiss Wright Co

Any MAC address starting 00:13:3D is registered to Micro Memory Curtiss Wright Co in US.

OUI prefix	00133D
Vendor	Micro Memory Curtiss Wright Co
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:13:3D:00:00:00

What this means

The IEEE assigned the MA-L block 00133D to Micro Memory Curtiss Wright Co. 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 00:13:3D, it is Micro Memory Curtiss Wright Co hardware.

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