El Fraccionamiento Real de San Fernando belongs to the municipality Cuautitlán, Estado de México state and its official ZIP Code is 54850
The Postal Codes National Catalog is prepared by the Mexican Postal Service and the postal code has 5 digits, depending on the country area. The first two digits identify the state or part of it. In the case of Cuautitlán the Zip Code range of the Estado de México state is 50 a 57. To send letters or packages to Cuautitlán, Estado de México you must always use the five-digit postal code.
The local area phone code is 55
Check out the Estado de México ZIP Code list
Check out the list of cities with 54850 ZIP Code in México