Area Code 466 – Guanajuato

Geographic Coverage and Administrative Jurisdiction

The +52 466 area code is a geographic National Destination Code (NDC) assigned to the northeastern region of the state of Guanajuato, Mexico. This area code serves municipalities including San Luis de la Paz, San José Iturbide, Doctor Mora, Victoria, Santa Catarina, Tierra Blanca, and Xichú. The region is part of the Sierra Gorda and the Northern Highlands, with San Luis de la Paz being the principal urban center and administrative hub. The jurisdiction falls under the Federal Telecommunications Institute (IFT) numbering plan, which allocates geographic codes based on state and municipal boundaries.

Dialing Formats and Caller Instructions

For local callers within the 466 area code, the standard local dialing format is the seven-digit subscriber number (e.g., 468 12 34). However, since 2019, Mexico eliminated the need to dial the long-distance prefix 01 for national calls. Therefore, to call a number in the 466 area code from another part of Mexico, you must dial the country code 52, the area code 466, and the seven-digit local number. For example, to call a landline in San Luis de la Paz from Mexico City, dial 52 466 468 12 34.

For international callers, the format is the same: your country's international exit code (e.g., 011 from the US/Canada, 00 from most European countries), followed by 52, 466, and the seven-digit subscriber number. For instance, from the United States, dial 011 52 466 468 12 34. From the UK, dial 00 52 466 468 12 34.

Overlay and Numbering Considerations

Currently, the 466 area code does not have an overlay code; it is the sole NDC for its geographic region. However, due to the growth of fixed-line services and the increasing demand for numbers, the IFT may introduce overlays in the future. It is essential to always dial the full 10-digit number (including the area code) for all calls, even within the same area, to ensure compatibility with potential future changes. This practice aligns with the national dialing plan that requires the use of the country code 52 for all calls, including local ones, when dialing from a mobile phone.

Practical Information for Callers

• Local calls: If you are physically within the 466 area code and dialing another 466 number, you can use the seven-digit format, but using the full 10-digit format is recommended.
• National calls: Always dial 52 466 followed by the local number.
• International calls: Dial your exit code, then 52 466, then the local number.
• Mobile numbers: Mobile numbers in Mexico are not tied to geographic area codes; they have their own prefixes (e.g., 1, 2, 3, etc.) and are dialed as 52 followed by the 10-digit mobile number.

Understanding the correct dialing format ensures seamless connectivity to businesses and residents in this part of Guanajuato, whether you are placing a call from within Mexico or from abroad.