Prosečne GPS koordinate za poštanski broj 405-816: 37.391, 126.715
Spisak gradova:
>> Gojan-dong/고잔동 405-816, Incheon/인천, Namdong-gu/남동구, 1-80/1-80, GPS koordinate: 37.39141,126.71532
>> Gojan-dong/고잔동 405-816, Incheon/인천, Namdong-gu/남동구, 128-534/128-534, GPS koordinate: 37.39129,126.7152
Spisak gradova:
>> Gojan-dong/고잔동 405-816, Incheon/인천, Namdong-gu/남동구, 1-80/1-80, GPS koordinate: 37.39141,126.71532
>> Gojan-dong/고잔동 405-816, Incheon/인천, Namdong-gu/남동구, 128-534/128-534, GPS koordinate: 37.39129,126.7152