Changmal 1-gil, Geongeon-dong, Sangnok-gu, Ansan-si postal codes (39)
All 39 buildings on Changmal 1-gil in Geongeon-dong, Sangnok-gu, Ansan-si use postal code 15521. Data as of August 2026.
All 39 buildings on Changmal 1-gil in Geongeon-dong, Sangnok-gu, Ansan-si use postal code 15521. Data as of August 2026.