Area Code 473 – Guanajuato, GTO

Geographic Coverage and Administrative Jurisdiction

Area code 473 is a geographic National Destination Code (NDC) assigned to the central-southern region of the state of Guanajuato, Mexico. This code serves the municipality of Valle de Santiago and its surrounding localities, including communities such as Jaral del Progreso, Uriangato, and Moroleón. The region is part of the larger Bajío economic zone, known for its agricultural production, automotive industry, and cultural heritage. The administrative jurisdiction falls under the state government of Guanajuato, with local telephony services regulated by the Federal Telecommunications Institute (IFT).

Primary Cities and Local Dialing

The principal city within the 473 area code is Valle de Santiago, often referred to as the "Land of Seven Lights" due to its volcanic craters. Other important towns include Jaral del Progreso, a historic mining town, and Moroleón, a textile and garment manufacturing hub. For local calls within the same area code, users dial the seven-digit subscriber number directly, without the need for the area code. For example, to call a local number in Valle de Santiago, one would dial 123-4567.

International Dialing Format

To call a number in the 473 area code from abroad, callers must use Mexico's country calling code (+52), followed by the area code and the seven-digit local number. The complete international format is +52 473 XXX XXXX. For instance, a caller from the United States would dial 011 52 473 123 4567, while a caller from Europe would dial 00 52 473 123 4567. It is essential to omit the leading trunk prefix '0' that is used for domestic long-distance calls within Mexico.

Overlay and Numbering Considerations

Currently, the 473 area code does not have an overlay code, meaning it is the sole NDC for its geographic region. However, as demand for telecommunication services grows, the IFT may introduce an overlay in the future. In such a case, ten-digit dialing would become mandatory for all local calls. For now, callers within the 473 region can continue using seven-digit local dialing. The number length for geographic codes in Mexico is ten digits, including the area code, and the subscriber number length is seven digits.

Caller Instructions

For local callers within the 473 area code, simply dial the seven-digit number. For callers from other parts of Mexico, dial the long-distance prefix 01, followed by 473 and the seven-digit number: 01 473 123 4567. For international callers, use the international access prefix of your country, then 52, then 473, and the seven-digit number. It is important to note that calls to geographic numbers are typically charged at standard domestic or international rates, depending on the caller's location and service provider.