Postcode La Comba (Siero) in Spain 33946 Posted on December 6, 2019 by Postmaster Ads. Europe > Spain > Asturias > Asturias > La Comba (Siero) Do you looking for the Zip Code for La Comba (Siero)? Zip Code for La Comba (Siero): 33946 Continue reading “Postcode La Comba (Siero) in Spain 33946”