Prosečne GPS koordinate za poštanski broj 407-833: 35.798, 128.5
Spisak gradova:
>> Hyoseong 2(i)-dong/효성2동 407-833, Incheon/인천, Gyeyang-gu/계양구, San 58-60/산58-60, GPS koordinate: 35.79815,128.5003
Spisak gradova:
>> Hyoseong 2(i)-dong/효성2동 407-833, Incheon/인천, Gyeyang-gu/계양구, San 58-60/산58-60, GPS koordinate: 35.79815,128.5003