PNU Decoding Coverage
Splits a 19-digit Korean cadastral PNU (필지고유번호) into its defined sub-ranges — 법정동코드, a 산/일반 flag, 본번, and 부번 — purely structurally. It does not resolve the 10-digit 법정동코드 into an actual province/city/동 name, since that requires a separately maintained government administrative code table.
The batch list decodes many PNUs (or a CSV with a pnu column) at once.
Frequently asked questions
Why does it show a code instead of the actual district name?
Resolving the code to a real name needs a government administrative code table with tens of thousands of rows that changes over time — guessing at it risks mislabeling a real parcel, so this tool stops at the structural decode.
What exactly is a PNU?
필지고유번호 (Parcel Number Unit) — a 19-digit identifier combining the 법정동코드, a 산/일반 flag, and the parcel's 지번 (본번/부번).