Area Code 3756 – Santo Tomé, Corrientes

Overview of Area Code 3756

Area code 3756 is a geographic National Destination Code (NDC) within the Argentine telephone numbering plan, assigned under the country calling code +54. It serves the city of Santo Tomé and its surrounding localities in the province of Corrientes, located in the northeastern region of Argentina, near the border with Brazil. The area is part of the Mesopotamian region, characterized by its riverine geography and subtropical climate.

Geographic Coverage and Administrative Jurisdiction

The code covers Santo Tomé, the head town of the Santo Tomé Department, as well as smaller communities within the department, such as Garruchos and Colonia Garabí. These areas are under the jurisdiction of the Corrientes provincial government. The region is known for its agricultural production, including yerba mate, tobacco, and timber, and for its proximity to the Uruguayana border crossing into Brazil.

Dialing Formats and Numbering Structure

In the Argentine national numbering plan, geographic numbers have a variable length. For area code 3756, subscriber numbers typically consist of six to seven digits, resulting in a total national significant number (NSN) length of nine or ten digits when including the area code. The exact format is:

• National dialing (within Argentina): 0 3756 [subscriber number] – the leading 0 is the trunk prefix used for domestic long-distance calls.
• International dialing (from abroad): +54 3756 [subscriber number] – note that the trunk prefix 0 is omitted when dialing from outside Argentina.

For example, if a local subscriber number is 421234, a caller from Buenos Aires would dial 0 3756 421234, while a caller from the United States would dial +54 3756 421234.

Caller Instructions

For local callers: When calling within the same area code, it is possible to dial only the subscriber number, without the area code or trunk prefix. However, due to number expansion and overlay considerations, it is recommended to always use the full national format to avoid misdialing.

For international callers: Replace the + with the international access code of your country (e.g., 011 from the US, 00 from most European countries) before dialing 54 and the area code. Ensure that you omit the leading 0 of the national trunk prefix.

Overlay and Numbering Plan Considerations

Argentina has been implementing a gradual migration to a closed numbering plan, and some regions have introduced overlays to increase number capacity. As of the latest updates, area code 3756 does not have an overlay, meaning that the area code is still required for all calls from outside the local area. However, users should verify with their service provider for any recent changes in dialing procedures, especially for mobile and VoIP services.

For accurate and up-to-date information, always consult official sources or your telecommunications provider.