Area Code 3407 – Ramallo, Buenos Aires
The phone area code for Ramallo, Buenos Aires is 3407 (international format +543407). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3407
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Ramallo, Buenos Aires
Overview of Area Code 3407
Area code 3407 is a geographic National Destination Code (NDC) within the Argentine numbering plan, assigned to the Ramallo and Pérez Millán areas in the northern part of Buenos Aires Province. This region is part of the broader Paraná River basin, with Ramallo serving as the principal administrative and commercial center. The code covers the Ramallo Partido, including localities such as Villa Ramallo, Pérez Millán, and the surrounding rural districts.
Geographic Coverage and Jurisdiction
The 3407 area code is administered under the jurisdiction of the Ente Nacional de Comunicaciones (ENACOM), Argentina's national telecommunications regulator. Geographically, it lies approximately 200 kilometers northwest of Buenos Aires city, along the Paraná River. The region is known for its agricultural production, grain ports, and industrial activity, particularly in the petrochemical and agro-industrial sectors. Key towns served by this code include:
- Ramallo (the principal city)
- Villa Ramallo
- Pérez Millán
- El Paraíso
- General Lagos (partially)
Dialing Formats and Instructions
For callers within Argentina, the national trunk prefix 0 is used before the area code. The local number is seven digits long, making the complete national dialing sequence: 0 3407 XXX XXXX. For example, to call a fixed line in Ramallo from another Argentine province, you would dial 0 3407 456 7890.
For international callers, the Argentine country code is +54, and the leading trunk prefix is omitted. The international dialing format becomes +54 3407 XXX XXXX. For instance, from the United States, you would dial 011 54 3407 456 7890 (or use the plus sign on mobile devices: +54 3407 456 7890).
Within the same area code, local calls can be made by dialing only the seven-digit subscriber number. However, due to the implementation of the Locutorio and public telephony systems, some older exchanges may still require the full national format. Always confirm with your service provider if you experience issues.
Overlay and Numbering Considerations
As of the latest ENACOM updates, there is no overlay code for 3407; it remains the sole geographic code for the Ramallo area. The numbering capacity is sufficient for the current population, but future expansions may occur. Since 2017, Argentina has mandated the use of the full national number (including the leading 0 and area code) for all calls, even local ones, in some regions. However, for 3407, local calls can still be dialed with seven digits if your operator supports it. For clarity and reliability, it is recommended to always use the complete national format when dialing from mobile phones.
When receiving calls from abroad, the caller must remember that Argentine numbers are variable in length. The total number of digits after the country code (including the area code and subscriber number) is typically 10 digits for fixed lines. Thus, +54 3407 456 7890 is a complete international number.