What this means
The IEEE assigned the MA-S block 8C1F641AD to Nexxto Servicos Em Tecnologia da Informacao SA. 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 8C:1F:64:1A:D, it is Nexxto Servicos Em Tecnologia da Informacao SA hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F641AD?
8C1F641AD is registered to Nexxto Servicos Em Tecnologia da Informacao SA in the IEEE MA-S registry.
What does the MA-S registry type mean?
An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. Nexxto Servicos Em Tecnologia da Informacao SA's block covers 4,096 addresses.
What devices use 8C1F641AD?
Any network device with a MAC address starting 8C:1F:64:1A:D was manufactured by or for Nexxto Servicos Em Tecnologia da Informacao SA.