Area Code 3402 – Arroyo Seco, Santa Fe

Overview of Area Code 3402

Area code 3402 is a geographic National Destination Code (NDC) assigned to the Arroyo Seco region in the province of Santa Fe, Argentina. This code serves the city of Arroyo Seco and its surrounding localities, including Fighiera, General Lagos, and Villa Constitución (though some numbers in Villa Constitución may use 3400). The area is part of the southern economic corridor of Santa Fe, near the border with Buenos Aires Province, and is connected to the Rosario metropolitan area.

Dialing Formats

When calling a fixed-line number in this region, the national dialing format requires the trunk prefix 0 followed by the area code and the subscriber number (7 digits). For international callers, the Argentine country code +54 is used, and the leading 0 is omitted.

• Local call (within the same area code): Dial the 7-digit subscriber number directly (e.g., 4567890).
• National long-distance call (from other Argentine cities): Dial 0 3402 4567890.
• International call (from abroad): Dial +54 3402 4567890 (omit the initial 0).

Geographic Coverage and Administrative Details

The 3402 code covers the Departamento Constitución in southern Santa Fe. Key towns include Arroyo Seco (the principal city), Fighiera, and General Lagos. These communities are located along National Route 9 and the Paraná River, making the area an important industrial and agricultural hub. The region is under the jurisdiction of the Santa Fe provincial government, and telecommunication services are regulated by the Ente Nacional de Comunicaciones (ENACOM).

Overlays and Numbering Considerations

Currently, there is no overlay code in 3402; the area uses a single NDC. Subscriber numbers are 7 digits long, and the total length of a national significant number (NSN) is 10 digits (area code + subscriber number). The Argentine numbering plan follows ITU-T E.164, and the country code is +54.

Caller Instructions

For local callers within the 3402 area, simply dial the 7-digit number. For callers from other provinces in Argentina, you must include the trunk prefix 0 before the area code. For international callers, always replace the trunk prefix with the +54 country code and drop the leading 0. Example: To call a business in Arroyo Seco from the United States, dial 011 54 3402 4567890 (where 011 is the US exit code).

As with all geographic codes in Argentina, numbers are tied to a physical location, but fixed-line numbers can be ported to VoIP services, allowing them to be used anywhere with an internet connection. However, the area code remains indicative of the original geographic assignment.