Coordinate GPS medie per codice postale 407-803: 37.538, 126.717

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lista delle città :
>> Gyesan 1(il)-dong/계산1동 407-803, Incheon/인천, Gyeyang-gu/계양구, 222/222, coordinate GPS: 37.53844,126.71724
>> Gyesan 1(il)-dong/계산1동 407-803, Incheon/인천, Gyeyang-gu/계양구, 776/776, coordinate GPS: 37.53844,126.71724
>> Gyesan 1(il)-dong/계산1동 407-803, Incheon/인천, Gyeyang-gu/계양구, 857-872/857-872, coordinate GPS: 37.53851,126.71731