Prosečne GPS koordinate za poštanski broj 423-858: 37.478, 126.854
Spisak gradova:
>> Gwangmyeong 4(sa)-dong/광명4동 423-858, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 158-235-158-1600/158-235-158-1600, GPS koordinate: 37.4782,126.85396
Spisak gradova:
>> Gwangmyeong 4(sa)-dong/광명4동 423-858, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 158-235-158-1600/158-235-158-1600, GPS koordinate: 37.4782,126.85396