Area Code 723 – Coatepec Harinas, MEX

Overview of Area Code 723 (Mexico)

Area code 723 is a geographic numbering plan area assigned to the State of Mexico (Estado de México), specifically serving the municipality of Coatepec Harinas and its surrounding localities. This code is part of the national numbering plan administered by the Instituto Federal de Telecomunicaciones (IFT) under the ITU-T E.164 standard for Mexico (country code +52). It is used for fixed-line (PSTN) services, including residential, business, and government lines.

Geographic Coverage and Jurisdiction

The 723 area code covers the western region of the State of Mexico, bordering the states of Guerrero and Michoacán. The primary city is Coatepec Harinas, a municipality known for its agricultural production and scenic mountain landscapes. Other nearby towns and rural communities within the same local exchange area also fall under this code. The region is administratively part of the State of Mexico, with local government services and commercial activities relying on this numbering resource.

Dialing Formats and Instructions

For callers within Mexico, the national long-distance format is used: 01 723 XXX XX XX. The leading '01' indicates a national long-distance call. For international callers, the format is +52 723 XXX XX XX (or 011 52 723 ... from the US/Canada). Local calls within the same area code do not require the area code; however, due to the rural nature of the region, most calls between different towns within the 723 area may still require the full national format if they are routed through different local exchanges. Always confirm with your service provider.

Overlay and Numbering Considerations

As of the latest IFT updates, area code 723 does not have an overlay code. This means that the 723 code is the sole area code for this geographic region. However, number exhaustion is monitored, and future overlays may be introduced. When dialing from a mobile phone within Mexico, it is common practice to include the area code even for local numbers, as mobile numbers are non-geographic and require full national dialing.

Caller Guidance

• Local callers (within 723): Use the 8-digit local number (XXX XX XX) if your provider supports local dialing; otherwise, use 01 723 XXX XX XX.
• National callers (outside 723): Dial 01 723 XXX XX XX.
• International callers: Dial your country's exit code, then 52, then 723, then the 8-digit number (e.g., +52 723 123 45 67).

This area code is essential for businesses and residents in Coatepec Harinas to maintain connectivity with the rest of Mexico and the world.