Area Code 844 – Saltillo, COAH
The phone area code for Saltillo, COAH is 844 (international format +52844). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 844
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Saltillo, COAH
Geographic Coverage and Administrative Jurisdiction
The area code 844 is a geographic National Destination Code (NDC) assigned to the city of Saltillo, the capital of the state of Coahuila de Zaragoza (COAH), in northeastern Mexico. This code serves the Saltillo metropolitan area, including the municipalities of Ramos Arizpe and Arteaga, which together form an important industrial and economic hub. The region is known for its automotive, metal-mechanical, and aerospace industries, as well as its rich colonial heritage.
Dialing Formats and Number Structure
In the Mexican numbering plan, geographic numbers under area code 844 consist of a 7-digit local subscriber number. The complete international format is +52 844 XXX XXXX. For domestic calls within Mexico, the national long-distance prefix 01 is used, resulting in 01 844 XXX XXXX. When dialing from a local landline within the same area code, it is possible to dial only the 7-digit subscriber number, although this practice is becoming less common due to the proliferation of mobile and VoIP services.
Caller Instructions
- International callers: Dial your country's exit code, then 52 (Mexico's country code), then 844, followed by the 7-digit local number. For example, to call a Saltillo number, you would dial +52 844 123 4567.
- Domestic callers outside Saltillo: Dial 01 844 followed by the 7-digit local number.
- Local callers within Saltillo: Dial the 7-digit local number directly (if supported by your carrier).
Overlay Considerations
Currently, area code 844 does not have an overlay. However, due to the growing demand for telecommunication services in the region, the Federal Telecommunications Institute (IFT) may introduce an overlay in the future. If an overlay is implemented, 10-digit dialing will become mandatory for all local calls. As of now, no overlay is active, and the 7-digit local dialing format remains standard for local calls.
Technical and Regulatory Notes
Area code 844 is part of the North American Numbering Plan (NANP) but operates under Mexico's national numbering plan, which follows ITU-T E.164 recommendations. The allocation of geographic area codes is managed by the IFT, which ensures efficient use of numbering resources. Calls to 844 numbers are routed over the PSTN and are also supported by VoIP and mobile networks, with proper number portability regulations in place.