KR · KOR
South Korea
Official and reviewed ID format references, with permanently masked examples for copy and QA. This site does not validate identity IDs.
Official public format
Resident Registration Number
주민등록번호
Regex
^\d{6}-\d{7}$71061*-3535381
Regex and masked examples are reference only. This page does not validate identity IDs.
Data provenance
Sources
Data snapshot: 2026-08-14