Regex Tester & Validator

Matches Russian cadastral numbers (кадастровый номер) in the format XX:XX:XXXXXX(X):N, where components represent district code, region code, cadastral quarter (6-7 digits), and object number, separated by colons. With global and multiline flags, it extracts all such identifiers across multiple lines of text, making it ideal for parsing land registry documents, property listings, or validating real estate registration numbers in Russian systems.