as far as someone knows
US /æz fɑːr əz ˈsʌm.wʌn noʊz/
UK /æz fɑːr əz ˈsʌm.wʌn noʊz/

1.
até onde eu sei, pelo que se sabe
used to say that you think something is true, but that there may be things you do not know
:
•
As far as I know, he's still working there.
Até onde eu sei, ele ainda está trabalhando lá.
•
As far as we know, no one was injured in the accident.
Até onde sabemos, ninguém ficou ferido no acidente.