PNU Decoder
Decode a 19-digit Korean cadastral PNU (필지고유번호 / Parcel Number Unique) into its 법정동코드, 산/일반 구분, and 지번.
법정동코드 (10)1168010100
시도 (2)11
시군구 (3)680
읍면동 (3)101
리 (2)00
산/일반 구분일반 (1)
본번843
부번0
지번843
This decodes only the PNU’s own 19-digit structure (법정동코드 + 산/일반 구분 + 본번 + 부번). It does not resolve the 법정동코드 to an actual province/city/동 name — that mapping lives in a government code table this app doesn’t bundle, since guessing at it risks silently mislabeling a real parcel. Cross-reference 법정동코드 against the 행정표준코드관리 시스템 or your own dataset.