Prosečne GPS koordinate za poštanski broj 3840-021: 40.483, -8.683
Spisak gradova:
>> Cabecinhas 3840-021, Aveiro, Sernancelhe, Atenor, GPS koordinate: 40.4833,-8.6833
Spisak gradova:
>> Cabecinhas 3840-021, Aveiro, Sernancelhe, Atenor, GPS koordinate: 40.4833,-8.6833