Gjennomsnittlig GPS-koordinater for postnummer 16400: 45.604, 0.144

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Notering byer:
>> La Couronne 16400, Poitou-Charentes, Charente, Arrondissement d'Angoulême, GPS-koordinater: 45.6113,0.0995
>> Puymoyen 16400, Poitou-Charentes, Charente, Arrondissement d'Angoulême, GPS-koordinater: 45.6167,0.1833
>> Vœuil-et-Giget 16400, Poitou-Charentes, Charente, Arrondissement d'Angoulême, GPS-koordinater: 45.5833,0.15