Area Code 653 – Luis B. Sanchez/San Luis Rio Colorado, SON

Geographic Coverage and Administrative Jurisdiction

The area code +52 653 is a geographic National Destination Code (NDC) assigned to the northwestern region of the state of Sonora, Mexico. It serves the municipality of San Luis Río Colorado and the surrounding areas, including the town of Luis B. Sánchez (also known as "El Golfo"). This region borders the United States (Arizona and California) and is part of the Sonoran Desert. The code covers the urban center of San Luis Río Colorado, as well as rural communities and agricultural zones within the municipality.

Primary Cities and Local Dialing

The principal city is San Luis Río Colorado, a border town with a significant binational economic relationship with San Luis, Arizona. Other localities within the 653 area include Luis B. Sánchez, Ejido Nuevo León, and Golfo de Santa Clara, a popular fishing and tourism destination on the Gulf of California. For local calls within the 653 area, subscribers dial the seven-digit local number directly (without the area code). For calls from other parts of Mexico, the format is 01 653 XXX XXXX (national long-distance prefix 01 + area code + local number).

International Dialing Format

For international callers, the correct format is +52 653 XXX XXXX. When dialing from the United States or Canada, you can use the international prefix 011 (or +) followed by 52 and the area code. For example, to call a landline in San Luis Río Colorado from abroad, you would dial +52 653 123 4567. Note that the leading '0' used in national dialing is not included when dialing from outside Mexico.

Overlay and Numbering Considerations

As of the latest ITU-T E.164 national numbering plan updates, area code 653 does not have an overlay. The region is served exclusively by this code. However, due to the proximity to the U.S. border, some mobile numbers may be assigned to Mexican carriers but could roam on U.S. networks. Fixed-line numbers in this area are typically assigned to Telmex and other local carriers, but number portability allows users to retain their numbers when switching providers.

Caller Instructions

For local callers within the 653 area: simply dial the 7-digit local number. For callers from other Mexican states: dial 01 653 followed by the 7-digit number. For international callers: dial your country's exit code, then 52 653, then the 7-digit number. Remember that calls to Mexican geographic numbers are typically charged at standard international rates, and some carriers may require additional prefixes for mobile numbers.