Area Code 3711 – Ingeniero Juárez, Formosa
The phone area code for Ingeniero Juárez, Formosa is 3711 (international format +543711). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3711
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Ingeniero Juárez, Formosa
Overview of Area Code 3711
Area code 3711 is a geographic National Destination Code (NDC) assigned to the city of Ingeniero Juárez and its surrounding areas in the province of Formosa, Argentina. This code is part of the national numbering plan administered by the Ente Nacional de Comunicaciones (ENACOM) under the ITU-T E.164 standard. The region is located in the northwestern part of Formosa Province, near the border with the province of Salta, and serves as an important commercial and administrative hub for the local agricultural and livestock industries.
Geographic Coverage and Jurisdiction
The 3711 area code covers the city of Ingeniero Juárez and the surrounding rural areas, including small towns and settlements within the Bermejo and Matacos departments. The administrative jurisdiction falls under the provincial government of Formosa, with local services coordinated through the municipality of Ingeniero Juárez. The region is characterized by its proximity to the Pilcomayo River and the Bolivian border, which influences its economic activities and demographic patterns.
Dialing Formats and Instructions
For callers within Argentina, the national trunk prefix 0 is used before the area code, followed by the subscriber number. The local subscriber numbers in this area typically consist of 6 to 7 digits, depending on the specific exchange and the number of lines assigned. The complete national dialing format is: 0 3711 XXX XXXX (where X represents the local digits).
For international callers, the Argentine country code +54 is used, followed by the area code without the leading zero, and then the subscriber number. The international dialing format is: +54 3711 XXX XXXX.
When dialing locally within the same area code, callers may omit the trunk prefix and area code, but it is recommended to use the full national format to avoid confusion, especially with the increasing use of mobile phones and VoIP services.
Overlay and Numbering Considerations
Currently, there is no overlay code for the 3711 area. The code is exclusively used for fixed-line services in the region. However, as part of the national migration to a unified numbering plan, ENACOM has implemented measures to ensure that all fixed-line numbers have a consistent length of 10 digits (including the area code) when dialed nationally. This means that the subscriber number length may vary, but the total length of the national significant number (NSN) is always 10 digits.
For callers from other countries, it is essential to note that the Argentine numbering plan requires the international prefix of the originating country, followed by 54, the area code (without the leading zero), and the subscriber number. No additional prefixes are needed for calling fixed lines in this region.
Practical Calling Examples
- Local call (within Ingeniero Juárez): If the subscriber number is 4567890, dial 4567890 directly.
- National call (from Buenos Aires): Dial 0 3711 4567890.
- International call (from the United States): Dial 011 54 3711 4567890 (or +54 3711 4567890 from mobile).
Understanding these dialing procedures ensures seamless connectivity for both residents and international callers, aligning with the standards set by the International Telecommunication Union (ITU) and the Argentine national regulatory framework.