There are the dataset os Correios: https://www2.correios.com.br/sistemas/edne/download/eDNE_Basico.zip
its more accurate, the OpenStreetMap has lots of problem on missmatch suburb
We don’t have permission to use Correios data, Daniel 
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This is not an OSM issue but rather a “OSM doesn’t have that many contributors worldwide (you’ll see a figure of “10+ million users” online but that’s the number of registered accounts on osm.org, in reality it’s closer from 6k~8k daily contributors) and gathering address data requires surveying in most places” issue which can’t be easily solved
Besides that, Correios’ data could be imported if it’s released under a compatible license
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uhnnn that makes sense that until now has not been used, kkkk