Area Code 2920 – Viedma, Río Negro

Overview of Area Code 2920 (Viedma, Río Negro)

Area code 2920 is a geographic National Destination Code (NDC) assigned to the city of Viedma, the capital of the province of Río Negro, Argentina. This code also serves the surrounding localities within the Valle Inferior and the Atlantic coast, including Carmen de Patagones (across the river in Buenos Aires Province), San Javier, Guardia Mitre, and rural areas along the Río Negro valley. Viedma is the administrative and political center of the province, hosting the provincial government and judiciary, while its twin city Carmen de Patagones forms a significant urban cluster.

Geographically, the 2920 coverage area is situated in the northeastern region of Patagonia, near the mouth of the Río Negro River. The region's economy is driven by public administration, agriculture (especially fruit and vegetable production), and tourism, with a growing presence of service industries. The area code is administered under the Argentine national numbering plan, which follows ITU-T E.164 recommendations.

Dialing Formats and Usage

For local calls within the 2920 area, subscribers dial the 7-digit subscriber number directly (e.g., 456-7890). For calls from other Argentine provinces or mobile networks, the national trunk prefix 0 is used, followed by the area code and subscriber number: 0-2920-456-7890. International callers must use the Argentine country code +54, followed by the area code (without the leading 0) and the subscriber number: +54 2920 456-7890.

It is important to note that Argentina uses a single national numbering plan without overlay codes in this region; the 2920 code is exclusive to the Viedma area. Mobile numbers in Argentina are non-geographic and carry the prefix 9 after the country code, so a mobile call from abroad to a Viedma mobile would be formatted as +54 9 2920 456-7890 (where the 9 indicates a mobile service).

Caller Instructions

• Local callers (within 2920): Dial the 7-digit local number.
• National callers (outside 2920): Dial 0-2920-XXXXXXX.
• International callers: Dial +54-2920-XXXXXXX.

When dialing from a mobile phone in Argentina, the national trunk prefix 0 is often omitted, but the area code must still be included. For example, from a Buenos Aires mobile, you would dial 2920-456-7890.

As part of the Argentine numbering plan, all geographic numbers have a fixed length of 10 digits (including the area code) for national dialing, and 11 digits when including the country code. The 2920 area code is not subject to overlay or area code splitting, ensuring stable dialing patterns for residents and businesses.