Area Code 313 – Colima
The phone area code for Colima is 313 (international format +52313). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 313
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Colima
Geographic Coverage and Administrative Jurisdiction
Area code 313 is a geographic National Destination Code (NDC) assigned to the state of Colima, Mexico, under the international country code +52. The code serves the central and northern parts of the state, including the state capital Colima City and the surrounding municipalities of Villa de Álvarez, Comala, Coquimatlán, and Cuauhtémoc. It does not cover the coastal tourist zone of Manzanillo, which uses area code 314, nor the southern municipalities near Tecomán, which use 313 as well but are part of the same state-wide numbering plan. The coverage area is characterized by a mix of urban, suburban, and rural communities, with Colima City being the primary economic and administrative hub.
Dialing Formats and Number Structure
In the national dialing format, calls within Mexico to a 313 number require the prefix 01 followed by the area code and the seven-digit local number. For example, a call from Mexico City to a fixed line in Colima City would be dialed as 01 313 123 4567. For international callers, the format is +52 313 123 4567. When dialing locally within the same area code, the seven-digit number alone is sufficient (e.g., 123 4567). All numbers assigned under 313 are seven digits long, and there is no overlay code in this region, so no ten-digit dialing is required for local calls.
Caller Instructions and Practical Considerations
For domestic callers outside Colima, it is essential to include the long-distance prefix 01 before the area code. Mobile callers within Mexico can dial directly using the +52 country code followed by the area code and number, even for domestic calls, as this is the standard for mobile-to-landline calls. International callers should always use the plus sign (+) or the international access prefix of their country (e.g., 011 from the US/Canada) followed by 52 and the 313 number. Since 313 is a geographic code, the number is tied to a physical location, but users should be aware that some businesses may use VoIP or virtual numbers that appear as local but are routed elsewhere. For emergency services, always dial the national emergency number 911, regardless of the area code.
Regulatory and Technical Notes
The Federal Telecommunications Institute (IFT) manages the numbering plan in Mexico. Area code 313 was originally assigned to cover the entire state of Colima, but due to demand, additional codes were introduced. The code is part of the North American Numbering Plan (NANP) but is not part of the NANP dialing procedures; instead, Mexico uses its own country code. Calls to 313 numbers are subject to standard national and international tariffs, and there are no special premium or toll-free charges associated with this geographic code. For accurate billing and routing, always verify the complete number with the recipient, as number portability allows users to retain their 313 number even if they move to a different area code region, though this is rare for fixed lines.