Area Code 3456 – Chajarí, Entre Ríos

Overview of Area Code 3456

Area code 3456 is a geographic National Destination Code (NDC) assigned to the city of Chajarí and its surrounding localities in the province of Entre Ríos, Argentina. This code is part of the national numbering plan administered by the Ente Nacional de Comunicaciones (ENACOM) under ITU-T E.164 guidelines. It is used for fixed-line (PSTN) services within the region, which is located in the northeastern part of the country, near the border with Uruguay.

Geographic Coverage and Jurisdiction

The 3456 code covers the administrative area of Chajarí, which is the head city of the Federación Department. The region includes nearby towns such as Santa Ana, Villa del Rosario, and rural zones that rely on the local exchange. Chajarí is situated on the banks of the Uruguay River, opposite the Brazilian city of Porto Xavier, and serves as a commercial and agricultural hub for the area.

Dialing Formats and Instructions

For local callers within Argentina, the dialing format for a number in Chajarí is:

• National trunk prefix (0) + area code (3456) + subscriber number (6 digits).

Example: To call a fixed line in Chajarí from Buenos Aires, dial 0 3456 123456.

For international callers, the format is:

• International access code (00 or +) + Argentina country code (54) + area code (3456) + subscriber number.

Example: From the United States, dial 011 54 3456 123456; from a mobile phone, dial +54 3456 123456.

Note that the leading '0' of the national trunk prefix is omitted when dialing from abroad. The subscriber number length is typically six digits, but some older lines may have fewer digits; always verify with the local directory.

Overlay and Numbering Considerations

As of the latest ENACOM updates, there is no overlay code for the 3456 area. The region uses a single NDC, and number portability is available for fixed lines, allowing users to retain their numbers when switching service providers. However, geographic numbers are generally tied to the physical location of the line, and calls are routed based on the NDC.

Caller Instructions

Local callers within Chajarí can often dial the subscriber number directly without the area code, depending on the local exchange configuration. However, for clarity and to avoid misdialing, it is recommended to always include the area code when calling from a different locality or from a mobile phone.

Foreign callers should be aware that Argentine numbers may be displayed with or without the leading '0' in directories. Always use the international format (+54 3456 ...) when dialing from outside the country.