Area Code 687 – Sinaloa
The phone area code for Sinaloa is 687 (international format +52687). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 687
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Sinaloa
Overview of Area Code 687
Area code 687 is a geographic National Destination Code (NDC) within the Mexican numbering plan, assigned to the state of Sinaloa. It serves the northern and central regions of the state, including the municipalities of Guasave, Guamúchil (Salvador Alvarado), and Los Mochis (Ahome). This area code is part of the North American Numbering Plan (NANP) but operates under Mexico's E.164 country code +52.
Geographic Coverage and Major Cities
The 687 area code covers a significant portion of Sinaloa's agricultural and coastal territory. Key cities and towns include:
- Los Mochis – a major commercial and agricultural hub, known for its port and railway connections.
- Guasave – a city in the fertile Valle del Fuerte, with strong agricultural activity.
- Guamúchil – a city in the municipality of Salvador Alvarado, serving as a regional economic center.
- Other communities such as Juan José Ríos, Adolfo Ruiz Cortines, and Higuera de Zaragoza.
The region is bordered by the Gulf of California to the west and features a mix of urban and rural areas.
Dialing Formats
For callers within Mexico, the national dialing format requires the long-distance prefix '01' followed by the area code and the local 7-digit number. For example, to call a landline in Los Mochis from Mexico City, you would dial: 01 687 123 4567.
For international callers, the format is: +52 687 123 4567. The country code for Mexico is +52, and the area code 687 is dialed without any leading '0' when calling from abroad.
Local calls within the same area code may be dialed using only the 7-digit number, depending on the specific local dialing procedures. However, with the growth of mobile and VoIP services, it is always safe to use the full national or international format.
Overlay and Numbering Considerations
Currently, there is no overlay area code for 687; it remains the sole area code for this region. However, as demand for numbers increases, the Federal Telecommunications Institute (IFT) may introduce an overlay in the future. In such cases, 10-digit dialing would become mandatory for all local calls.
Number lengths within this area code are fixed at 7 digits for local numbers, following the standard Mexican format. Mobile numbers in Mexico are not tied to geographic area codes and use the same +52 country code, but they are identified by their own prefixes (e.g., 687 is not used for mobile numbers; mobile numbers typically start with 1 after the country code when dialed from abroad).
Caller Instructions
For local callers within the 687 region, dialing another local number may require only the 7-digit number if your service provider supports it. However, to avoid confusion, especially when calling from mobile phones, it is recommended to use the full national format: 01 687 XXX XXXX.
For foreign callers, always use the international format: +52 687 XXX XXXX. Ensure you replace the '0' in the national prefix with the country code when dialing from abroad.
When calling from a mobile phone within Mexico, you may need to include the '01' prefix or use the '+52' format depending on your carrier and the type of number you are dialing. Always check with your service provider for specific dialing instructions.