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South Korean RRN Generator

Generate and format valid South Korean Resident Registration Numbers (RRN) for software QA testing.

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About the South Korean RRN

The RRN (Resident Registration Number / 주민등록번호) is the 13-digit national identity number used in South Korea.

Structured as YYMMDD-SNNNNNC: birth date (6 digits), century/gender code (1 digit), and a weighted modulo 11 check digit.

Frequently Asked Questions