CN · CHN
China Resident Identity Card Number format
Official and reviewed ID format references, with permanently masked examples for copy and QA. This site does not validate identity IDs.
Resident Identity Card Number · Permanently masked examples
Data snapshot: Sources and data boundaries
Official public format
Resident Identity Card Number
居民身份證號
Regex
^\d{17}[0-9X]$3100002017*1025986
Regex and masked examples are reference only. This page does not validate identity IDs.
Data provenance
Sources
Data snapshot: 2026-10-05