Prosečne GPS koordinate za poštanski broj 690-728: 33.508, 126.526
Spisak gradova:
>> Ido 1(il)-dong/이도1동 690-728, Jeju-do/제주, Jeju-si/제주시, Daehanhanggongbilding/대한항공빌딩, GPS koordinate: 33.50842,126.52558
Spisak gradova:
>> Ido 1(il)-dong/이도1동 690-728, Jeju-do/제주, Jeju-si/제주시, Daehanhanggongbilding/대한항공빌딩, GPS koordinate: 33.50842,126.52558