Area Code 3825 – Chilecito, La Rioja
The phone area code for Chilecito, La Rioja is 3825 (international format +543825). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3825
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Chilecito, La Rioja
Geographic Overview
The Argentine national destination code 3825 is a geographic area code assigned to the city of Chilecito and its surrounding localities in the province of La Rioja, Argentina. Chilecito is a significant economic and cultural hub in the region, known for its mining, agriculture, and tourism activities. The code covers the urban area of Chilecito and nearby towns such as Anguinán, Los Sarmientos, and San Miguel, all within the administrative jurisdiction of the Chilecito Department.
Dialing Formats
For local calls within the 3825 area, callers must dial the 7-digit subscriber number directly. For national long-distance calls from other Argentine provinces, the format is:
- 0 (trunk prefix) + 3825 (area code) + 7-digit subscriber number.
For international calls from abroad, callers should dial the international access prefix (e.g., 00 or +) followed by 54 (Argentina's country code), then 3825, and finally the 7-digit subscriber number. Example: +54 3825 1234567.
Overlay and Numbering Considerations
As of the latest ITU-T E.164 allocation, there is no overlay code for 3825; the area code serves a defined geographic region. However, Argentina has implemented number portability for mobile services, but fixed-line geographic numbers are generally tied to the physical location of the line. Callers should note that when dialing from a mobile phone within Argentina, the trunk prefix '0' is often omitted, but the area code is still required for national calls.
Caller Instructions
For local callers within the 3825 area, simply dial the 7-digit number. For callers from other regions of Argentina, always include the trunk prefix '0' and the area code '3825' before the subscriber number. For international callers, replace the trunk prefix with the country code '+54' and drop the leading '0' of the area code. It is essential to verify the subscriber number length, as all fixed-line numbers in Argentina are 7 digits after the area code.
Chilecito's strategic location in the Famatina Valley makes it a key telecommunications hub for the region, with modern PSTN and VoIP infrastructure ensuring reliable connectivity for both residential and business users.