Spanish Foreigner ID (NIE) Validator
Validate the authenticity, format, and checksum of Spanish Foreigner ID (NIE).
About Spanish Foreigner ID (NIE) Validation
The NIE (Número de Identidad de Extranjero) is the personal and tax identification number assigned to foreign residents and investors in Spain.
Composed of 9 characters: leading letter (X=0, Y=1, Z=2), 7 digits, and a control letter derived from Modulo 23 of the standard letter table.