Prosečne GPS koordinate za poštanski broj 630-783: 35.224, 128.506
Spisak gradova:
>> Naeseo-eup/내서읍 630-783, Gyeongsangnam-do/경남, Masan-si/마산시, Samgyeri/삼계리, GPS koordinate: 35.224,128.50601
Spisak gradova:
>> Naeseo-eup/내서읍 630-783, Gyeongsangnam-do/경남, Masan-si/마산시, Samgyeri/삼계리, GPS koordinate: 35.224,128.50601