Prosečne GPS koordinate za poštanski broj 407-819: 37.531, 126.753

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Spisak gradova:
>> Jakjeonseoun-dong/작전서운동 407-819, Incheon/인천, Gyeyang-gu/계양구, 131-146/131-146, GPS koordinate: 37.53098,126.753
>> Jakjeonseoun-dong/작전서운동 407-819, Incheon/인천, Gyeyang-gu/계양구, 149-161/149-161, GPS koordinate: 37.53095,126.75297
>> Jakjeonseoun-dong/작전서운동 407-819, Incheon/인천, Gyeyang-gu/계양구, 588-599/588-599, GPS koordinate: 37.53094,126.75296