Keskimääräinen GPS-koordinaatit postinumero 423-803: 37.484, 126.857

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Listatut kaupungit:
>> Gwangmyeong 2(i)-dong/광명2동 423-803, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 40/40, GPS-koordinaatit: 37.48447,126.85735
>> Gwangmyeong 2(i)-dong/광명2동 423-803, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 44-47/44-47, GPS-koordinaatit: 37.4845,126.85738
>> Gwangmyeong 2(i)-dong/광명2동 423-803, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 50-63/50-63, GPS-koordinaatit: 37.48446,126.85734