Area Code 3401 – El Trébol, Santa Fe

Overview of Argentina Area Code 3401

Area code 3401 is a geographic National Destination Code (NDC) within the Argentine national numbering plan, administered under the country calling code +54. It serves the city of El Trébol and its surrounding localities in the department of San Martín, province of Santa Fe. This region is part of the Pampa Húmeda, an area known for its agricultural production and small-to-medium urban centers. The code covers a mix of residential, commercial, and rural zones, with El Trébol being the principal urban hub.

Geographic Coverage and Jurisdiction

The 3401 numbering area encompasses El Trébol and nearby communities such as San Jorge (partially), Carlos Pellegrini, Landeta, and Las Petacas, among others. Administratively, these localities fall under the jurisdiction of the Santa Fe provincial government, and the code is allocated by the Ente Nacional de Comunicaciones (ENACOM), Argentina's national communications regulator. The region is served by fixed-line operators such as Telecom Argentina and Telefónica, as well as alternative local carriers.

Dialing Formats

For callers within Argentina, the national dialing format requires the use of the trunk prefix 0 followed by the area code and subscriber number. For example, to call a landline in El Trébol with a subscriber number 4567890, you would dial:

• National (domestic) call: 0 3401 4567890
• International call from abroad: +54 3401 4567890

When dialing locally within the same area code, the area code is often omitted, and only the subscriber number is used (e.g., 4567890). However, for clarity and due to the possibility of number expansion, it is recommended to use the full national format when dialing from mobile phones.

Overlay and Numbering Considerations

As of the latest ENACOM updates, there is no overlay code for 3401; the area code remains exclusive to its geographic region. Subscriber numbers in this area typically consist of 7 digits, resulting in a total national significant number length of 10 digits (area code + subscriber number) when including the leading trunk prefix. This structure aligns with the ITU-T E.164 recommendation for Argentina.

Caller Instructions

For local callers: If you are within the 3401 area, you can dial the 7-digit subscriber number directly for local calls. For calls to other Argentine cities, always include the trunk prefix 0 and the destination area code.

For international callers: Dial your country's international access code (e.g., 011 from the US, 00 from most European countries), followed by Argentina's country code 54, then the area code 3401 (without the leading 0), and the subscriber number. Example: 00 54 3401 4567890.

This area code is exclusively for fixed-line services; mobile numbers in Argentina use non-geographic codes starting with 11, 22, 33, etc., and are not tied to this region.