Who owns MAC prefix 00186F?

00186F is registered to Setha Industria Eletronica LTDA in the IEEE MA-L registry.

What devices use 00186F?

Any network device with a MAC address starting 00:18:6F was manufactured by or for Setha Industria Eletronica LTDA.

MA-L · OUI prefix

Setha Industria Eletronica LTDA

Any MAC address starting 00:18:6F is registered to Setha Industria Eletronica LTDA.

OUI prefix	00186F
Vendor	Setha Industria Eletronica LTDA
Registry	MA-L (24-bit, large block)
Example MAC	00:18:6F:00:00:00

What this means

The IEEE assigned the MA-L block 00186F to Setha Industria Eletronica LTDA. 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 00:18:6F, it is Setha Industria Eletronica LTDA hardware.

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