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  4. Postal Code 18138

South Korea Postal Code 18138 Boundary Map

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Postal Code18138
Postal Code NameOsan-si
ProvinceGyeonggi-do
CountyOsan-si
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes18134
18135
18136
18137
18139
18140
18141

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