What this means
The IEEE assigned the MA-L block 001A90 to Trópico Sistemas e Telecomunicações da Amazônia 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 00:1A:90, it is Trópico Sistemas e Telecomunicações da Amazônia LTDA. hardware.
Frequently Asked Questions
Who owns MAC prefix 001A90?
001A90 is registered to Trópico Sistemas e Telecomunicações da Amazônia 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. Trópico Sistemas e Telecomunicações da Amazônia LTDA.'s block covers 16,777,216 addresses.
What devices use 001A90?
Any network device with a MAC address starting 00:1A:90 was manufactured by or for Trópico Sistemas e Telecomunicações da Amazônia LTDA..