Area Code 380 – La Rioja, La Rioja
The phone area code for La Rioja, La Rioja is 380 (international format +54380). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 380
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of La Rioja, La Rioja
Overview of Argentina's +54 380 Geographic Code
The +54 380 country and area code combination corresponds to the province of La Rioja in northwestern Argentina. This geographic code is assigned under Argentina's national numbering plan, which adheres to ITU-T E.164 recommendations. The 380 code serves as the National Destination Code (NDC) for landline telephone services within the province, covering both the capital city, also named La Rioja, and surrounding localities.
Coverage and Administrative Jurisdiction
The 380 area code encompasses the entire province of La Rioja, which is one of Argentina's 23 provinces. Key cities and towns within this code include La Rioja (the provincial capital), Chilecito, Aimogasta, and Villa Unión. The province is located in the northwest region of the country, bordering Chile to the west. The administrative authority for telecommunications in this region is the Ente Nacional de Comunicaciones (ENACOM), which oversees numbering resources and service quality.
Dialing Formats and Instructions
For callers within Argentina, dialing a La Rioja landline requires the use of the national trunk prefix '0' followed by the area code '380' and the subscriber number. The local subscriber number typically consists of 6 to 7 digits, depending on the specific exchange and historical numbering assignments. The complete national dialing format is: 0 380 XXXX XXXX.
For international callers, the format changes: you must dial the Argentine country code '+54', then the area code '380' (omitting the leading '0'), and then the subscriber number. The international format is: +54 380 XXXX XXXX.
When calling within the same area code, local calls may be placed using only the subscriber number, depending on the carrier and the specific telephone exchange. However, it is always safe to use the full national format to avoid dialing errors.
Overlay and Numbering Considerations
As of the latest ENACOM updates, there is no overlay code for the 380 area. The province is served exclusively by this geographic code. However, number portability is available in Argentina, allowing users to retain their landline numbers when switching service providers, though the geographic association remains tied to the original location.
For businesses and residents in La Rioja, it is essential to display numbers in international format (+54 380 ...) on websites and global directories to facilitate calls from abroad. For callers outside Argentina, note that the '0' trunk prefix is not used when dialing from overseas.
Practical Examples
- Local call within La Rioja: Dial 4XX XXXX (if 7-digit subscriber number) or 4XX XXX (if 6-digit).
- National call from Buenos Aires to La Rioja: Dial 0 380 4XX XXXX.
- International call from the USA to La Rioja: Dial 011 54 380 4XX XXXX (replace 011 with your country's exit code).
- International call from a mobile phone: Dial +54 380 4XX XXXX.
Understanding these dialing protocols ensures seamless connectivity with La Rioja's fixed-line subscribers, whether for personal or business purposes.