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  4. Postal Code 31166

South Korea Postal Code 31166 Boundary Map

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Postal Code31166
Postal Code NameCheonan-si
ProvinceChungcheongnam-do
CountyCheonan-si
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes31155
31161
31165
31167
31170
31171
31172
31173
31180

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