Prosečne GPS koordinate za poštanski broj 407-827: 37.533, 126.705
Spisak gradova:
>> Hyoseong 1(il)-dong/효성1동 407-827, Incheon/인천, Gyeyang-gu/계양구, 76-150/76-150, GPS koordinate: 37.53312,126.70452
Spisak gradova:
>> Hyoseong 1(il)-dong/효성1동 407-827, Incheon/인천, Gyeyang-gu/계양구, 76-150/76-150, GPS koordinate: 37.53312,126.70452