Postcode Granda (Siero) in Spain 33199 Posted on December 12, 2019 by Postmaster Ads. Europe > Spain > Asturias > Asturias > Granda (Siero) Do you looking for the Zip Code for Granda (Siero)? Zip Code for Granda (Siero): 33199 Continue reading “Postcode Granda (Siero) in Spain 33199”