About this Generator
This tool generates valid Polish National Official Business Register Numbers that comply with official requirements.
The generator creates REGON numbers following the official format for both national entities and local units.
Generated REGON numbers are for testing purposes only. While they follow the correct format and pass validation checks, they are not officially registered numbers.
About Poland REGON Generator
Generation Features: • Entity type selection • Length determination • Check digit calculation • Format compliance • Pattern validation
Technical Details: • 9/14-digit formats • Check digit rules • Unit type handling • Pattern verification • Format validation
To verify an existing REGON, you can use our Poland REGON Verifier