Area Code 471 – Purepero/Tlazazalca, MICH

Geographic Scope and Administrative Jurisdiction

Area code 471 is a geographic National Destination Code (NDC) assigned to the northwestern region of the state of Michoacán de Ocampo, Mexico. It serves the municipalities of Purépero and Tlazazalca, along with their surrounding localities and rural areas. These communities are part of the Purépecha Plateau region, known for its indigenous heritage and agricultural production. The code is administered under the jurisdiction of the Federal Telecommunications Institute (IFT) and is allocated exclusively for fixed-line PSTN services within this defined geographic area.

Primary Cities and Coverage

The principal cities served by area code 471 include Purépero de Echáiz (commonly referred to as Purépero) and Tlazazalca. Other nearby towns and ranches, such as those along the federal highway that connects these municipalities to Zamora and La Piedad, may also fall within the 471 numbering area. The region is characterized by a mix of residential, commercial, and agricultural telephony demand, with coverage extending to both urban centers and rural outlying communities.

Dialing Formats and Caller Instructions

For local callers within the 471 area code, the standard procedure is to dial the seven-digit local subscriber number directly, without the need for the area code or the national trunk prefix. For example, to reach a local line with the number 123-4567, a caller within the same area code would simply dial 123-4567.

For domestic long-distance calls from other parts of Mexico, callers must dial the national trunk prefix 01, followed by the area code 471 and the seven-digit local number. The complete format is: 01 471 123 4567. This applies to calls originating from any other geographic area code within Mexico.

For international callers, the appropriate international dialing sequence is to dial the international access prefix (typically + or 00), followed by Mexico's country code 52, then the area code 471 (without the leading '0'), and the seven-digit local number. The international format is: +52 471 123 4567.

Overlay and Numbering Considerations

As of the latest IFT numbering plan updates, area code 471 does not have an overlay code. This means that the 471 code is the sole NDC for the region, and no additional area codes have been assigned to the same geographic area. Consequently, ten-digit dialing is not required for local calls within the region; seven-digit dialing remains the standard. However, it is always advisable to verify with your local service provider for any changes in dialing procedures, especially if you are using VoIP or mobile services that may route calls differently.

Practical Examples for Callers

To illustrate, consider a business line in Purépero with the number 456-7890. A local customer would dial 456-7890. A caller from Mexico City would dial 01 471 456 7890. An international caller from the United States would dial 011 52 471 456 7890 or +52 471 456 7890 depending on their carrier's requirements. These formats ensure proper routing through the PSTN and interconnection with the appropriate local exchange.