How can I find out my phones correct region and baseband?

[AC Question]

Baseband Unknown

I flashed cm12 rom in my note 3 stock slot ... then reflashed the stock rom of wrong region... now my baseband is unknown and iemi no. Is invalid. Tried all roms and basedbands available on the web but hard luck. Is there a possible way to find out my phones correct region and baseband? Please suggest a solution