About this Generator
This tool generates valid Andorran NRT (Número de Registre Tributari) numbers that comply with the official format requirements.
The generator creates NRT numbers following the structure defined by the Andorran Tax and Borders Department, including proper entity type prefixes and valid control letters.
Generated NRTs are for testing purposes only. While they follow the correct format and pass validation checks, they are not officially registered numbers.
About Andorran NRT Generator
Different NRT formats are available: • F-prefix for resident individuals • E-prefix for non-residents • A/L-prefix for companies • C/D/G/O/P/U-prefix for other entities
Each NRT consists of a letter prefix indicating the entity type, followed by 6 digits within the allowed range for that entity type, and ends with a check letter. The number ranges are strictly controlled based on entity type.
To verify an existing NRT number, you can use our Andorran NRT Verifier