Area Code 3406 – San Jorge, Santa Fe

Overview of Area Code 3406

Area code 3406 is a geographic National Destination Code (NDC) within the Argentine national numbering plan, assigned under the country calling code +54. It serves the city of San Jorge and its surrounding localities in the central-southern part of Santa Fe Province. San Jorge is the head of the San Martín Department, a key agricultural and industrial hub in the Pampas region.

Geographic Coverage and Jurisdiction

The 3406 area code covers San Jorge and nearby towns such as Carlos Pellegrini, Landeta, Las Petacas, and María Susana. Administratively, these communities fall under the jurisdiction of the provincial government of Santa Fe. The region is served by fixed-line PSTN and VoIP services, with copper, fiber, and wireless local loop infrastructure deployed by telecom operators like Telecom Argentina and Telefónica.

Dialing Formats and Procedures

When dialing within Argentina, the national trunk prefix 0 is used before the area code. For local calls within the 3406 area, subscribers typically dial the 6-digit subscriber number directly (without the area code). However, due to the implementation of the National Numbering Plan, all calls outside the local exchange area require the full 10-digit format: 0 3406 XXX XXX.

For international callers, the format is +54 3406 XXX XXX. The plus sign represents the international access prefix (00 in most countries). For example, to call a landline in San Jorge from the United States, you would dial: 011 54 3406 123 456 (replace 123 456 with the actual subscriber number).

Overlay and Numbering Considerations

As of the latest ITU-T E.164 updates, no overlay code has been assigned to the 3406 area. The numbering capacity is sufficient for the population density. However, the Argentine communications regulator (ENACOM) has mandated that all fixed-line numbers must be dialed with the area code even for local calls in certain regions to facilitate number portability and service competition. Therefore, it is recommended to always store and dial numbers in the international format (+54 3406 ...) to ensure connectivity from any location.

Caller Instructions

Local callers within the 3406 area can dial the 6-digit subscriber number directly. National callers from other Argentine provinces must dial 0 3406 followed by the subscriber number. Foreign callers must use the international format +54 3406 followed by the subscriber number. For calls to mobile phones from landlines, the same trunk and area code rules apply, but mobile numbers have their own non-geographic prefixes (e.g., 11, 15, etc.).

Always confirm the current dialing procedures with your local service provider, as numbering plan changes may occur.