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.
Frequently Asked Questions
Who owns MAC prefix 00186F?
00186F is registered to Setha Industria Eletronica LTDA in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Setha Industria Eletronica LTDA's block covers 16,777,216 addresses.
What devices use 00186F?
Any network device with a MAC address starting 00:18:6F was manufactured by or for Setha Industria Eletronica LTDA.