Atella is a town and comune in the province of Potenza, in the Southern Italian region of Basilicata. It is bounded by the comuni of Avigliano, …Atella is a town and comune in the province of Potenza, in the Southern Italian region of Basilicata. It is bounded by the comuni of Avigliano, Bella, Calitri, Filiano, Rionero in Vulture, Ripacandida, Ruvo del Monte and San Fele.