Certainly not Cinelli, but mid level Bianchi is a good guess if it is indeed Italian....
Domed rear stay ends are more common on French mid level bikes, but the rear dropouts are definitley not French (Simplex) looking, so could be Japanese too. Simple chainstay bridge with the big fender mounting hole says mid level or lower model too. Who knows, the Columbus sticker might be a later add-on too.

Chombi