Area Code 3821 – Chepes, La Rioja

Overview of Area Code 3821

Area code 3821 is a geographic National Destination Code (NDC) assigned to the city of Chepes and its surrounding areas within the province of La Rioja, Argentina. This code is part of the Argentine national numbering plan, which adheres to the ITU-T E.164 standard. The region is characterized by its arid landscape and is an important administrative and commercial hub for the southern part of La Rioja province.

Geographic Coverage and Jurisdiction

The 3821 area code covers the city of Chepes, the head of the Rosario Vera Peñaloza Department, and extends to nearby rural localities such as Desiderio Tello and Los Baldecitos. The jurisdiction falls under the province of La Rioja, which is located in the western-central region of Argentina. The area is served by fixed-line telephony infrastructure, with copper and fiber-optic connections provided by the national incumbent, Telefónica de Argentina (Movistar), and other licensed operators.

Dialing Formats

For local calls within the 3821 area code, subscribers can dial the 7-digit subscriber number directly, omitting the area code. For example, to call a local number 456-7890, dial 456-7890.

For domestic long-distance calls from other Argentine cities, the full national trunk prefix must be used. The format is: 0-3821-456-7890. The leading '0' is the national trunk prefix, followed by the area code '3821' and the subscriber number.

For international callers, the Argentine country code (+54) is used, and the trunk prefix '0' is dropped. The international format is: +54-3821-456-7890. For example, a caller from the United States would dial 011 54 3821 456 7890.

Overlay and Numbering Considerations

As of the latest ITU-T operational bulletins, there is no overlay code for the 3821 area. The subscriber numbers are typically 7 digits long, and the total length of a national significant number (NSN) is 10 digits (including the area code). The Argentine National Communications Entity (ENACOM) regulates the allocation of numbers and ensures that the numbering plan remains consistent with national and international standards.

Caller Instructions

Local callers within Chepes should dial the 7-digit number directly. Callers from other regions in Argentina must include the trunk prefix '0' and the area code '3821'. International callers must use the country code '+54' and omit the trunk prefix '0'. It is important to note that when calling from a mobile phone in Argentina, the same domestic format applies, but the trunk prefix '0' is often replaced by the mobile prefix '15' for calls to fixed lines? However, for fixed-to-fixed calls, the standard format is as described.

For any issues with number portability or service activation, users should contact their service provider.