Area Code 648 – Boquilla/Ciudad Camargo, CHIH

Geographic Coverage and Administrative Jurisdiction

The +52 648 country calling code and area code combination corresponds to a geographic numbering plan area within the state of Chihuahua (CHIH), Mexico. Specifically, this National Destination Code (NDC) serves the municipalities and localities surrounding Ciudad Camargo and the nearby community of Boquilla (often associated with the Boquilla Dam area). The region is part of the northern Mexican plateau, and the code covers a predominantly rural and semi-urban territory that includes the city of Camargo, which serves as the commercial and administrative hub for the surrounding agricultural and ranching areas.

Administratively, the 648 area code falls under the jurisdiction of the Federal Telecommunications Institute (IFT), which regulates numbering resources in Mexico. The geographic allocation means that the prefix is tied to a specific physical region, and numbers are assigned to fixed-line services (PSTN) as well as some fixed wireless and VoIP services that are registered to that locality.

Primary Cities and Localities Served

The main population centers served by this area code include:

• Ciudad Camargo – the largest city and municipal seat, known for its agricultural production and as a regional transportation hub.
• Boquilla – a community located near the Boquilla Dam, one of the largest dams in Mexico, which supports irrigation and generates hydroelectric power.
• Smaller towns and ranches within the municipality of Camargo, such as La Perla and Santa Rosalía, are also covered under this NDC.

The area is crossed by Federal Highway 16, connecting it to Chihuahua City to the west and Ojinaga to the east.

Dialing Formats and Caller Instructions

For callers within Mexico, the national long-distance dialing format requires the prefix 01 before the area code and subscriber number. Thus, a local number in Ciudad Camargo would be dialed as: 01 648 XXX XXXX. However, within the same area code, local calls may be dialed using just the 7-digit subscriber number (or 8-digit depending on the specific number length, but typically 7 digits for geographic numbers).

For international callers, the format is: +52 648 XXX XXXX. For example, to call a fixed line in Ciudad Camargo from the United States, you would dial: 011 52 648 XXX XXXX (or +52 648 XXX XXXX from a mobile phone).

Overlay and Numbering Considerations

Currently, there is no overlay code for the 648 area, meaning that the geographic region is served exclusively by this NDC. However, due to the growth of mobile services, many residents use mobile numbers that are not tied to the geographic area code, as mobile prefixes in Mexico are non-geographic and begin with the digit '1' after the country code (e.g., +52 1 648 ... for mobile numbers). This distinction is important for callers: a number starting with +52 648 is a fixed line, while a number starting with +52 1 648 is a mobile line, even if the subscriber is located in the same region.

When dialing from abroad, it is essential to drop the leading '1' when calling a Mexican mobile number, but for geographic numbers like those in the 648 area, the area code is always included. Always verify the number length: geographic numbers in Mexico are typically 8 digits after the area code, but some older lines may have 7 digits. If in doubt, consult the IFT numbering database or your service provider.