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  4. Postal Code 21900

South Korea Postal Code 21900 Boundary Map

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Postal Code21900
Postal Code NameYeonsu-gu
ProvinceIncheon
CountyYeonsu-gu
TimezoneKorean Standard Time (KST)
Adjacent Postal Codes21901
21903
21939
21947
21948
21954
21955
22197
22198

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