Prosečne GPS koordinate za poštanski broj 630-856: 35.262, 128.543

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Spisak gradova:
>> Naeseo-eup/내서읍 630-856, Gyeongsangnam-do/경남, Masan-si/마산시, Angokri/안곡리, GPS koordinate: 35.26172,128.54275
>> Naeseo-eup/내서읍 630-856, Gyeongsangnam-do/경남, Masan-si/마산시, Anseongri/안성리, GPS koordinate: 35.26177,128.5428
>> Naeseo-eup/내서읍 630-856, Gyeongsangnam-do/경남, Masan-si/마산시, Hogyeri/평성리, GPS koordinate: 35.2618,128.54283
>> Naeseo-eup/내서읍 630-856, Gyeongsangnam-do/경남, Masan-si/마산시, Pyeongseongri/호계리, GPS koordinate: 35.26172,128.54275