Prosečne GPS koordinate za poštanski broj 431-821: 37.395, 126.937

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Spisak gradova:
>> Bisan 2(i)-dong/비산2동 431-821, Gyeonggi-do/경기, Dongan-gu Anyang-si/안양시 동안구, 411-420/411-420, GPS koordinate: 37.39526,126.93725
>> Bisan 2(i)-dong/비산2동 431-821, Gyeonggi-do/경기, Dongan-gu Anyang-si/안양시 동안구, 466/466, GPS koordinate: 37.39539,126.93738
>> Bisan 2(i)-dong/비산2동 431-821, Gyeonggi-do/경기, Dongan-gu Anyang-si/안양시 동안구, 558-580/558-580, GPS koordinate: 37.39536,126.93735