Gjennomsnittlig GPS-koordinater for postnummer 406-840: 37.392, 126.642
Notering byer:
>> Songdo-dong/송도동 406-840, Incheon/인천, Yeonsu-gu/연수구, GPS-koordinater: 37.39185,126.6418
Notering byer:
>> Songdo-dong/송도동 406-840, Incheon/인천, Yeonsu-gu/연수구, GPS-koordinater: 37.39185,126.6418