Area Code 2931 – Río Colorado, Río Negro
The phone area code for Río Colorado, Río Negro is 2931 (international format +542931). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2931
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Río Colorado, Río Negro
Overview of Area Code 2931
Area code 2931 is a geographic National Destination Code (NDC) within the Argentine numbering plan, assigned to the city of Río Colorado and its surrounding localities in the Province of Río Negro. This code is part of the southern region of Argentina, near the border with the Province of Buenos Aires. The area is primarily agricultural and livestock-oriented, with Río Colorado serving as the main urban center. Other nearby towns that may share this code include La Adela (in La Pampa) and smaller rural settlements, though the core service area is Río Colorado.
Dialing Formats
When calling a fixed-line number in this region, the national subscriber number consists of the area code followed by a 6-digit local number. The complete international format includes the Argentine country code +54.
- Local calls (within the same area code): Dial the 6-digit subscriber number directly. For example, if the local number is 456789, simply dial 456789.
- National long-distance calls (from other Argentine cities): Dial 0 (trunk prefix) + 2931 + the 6-digit subscriber number. For instance, to call 456789 from Buenos Aires, dial 0 2931 456789.
- International calls (from outside Argentina): Dial the international access prefix (e.g., 00 from most countries) + 54 (country code) + 2931 + the 6-digit subscriber number. Example: +54 2931 456789.
Regulatory and Technical Notes
Argentina's numbering plan follows ITU-T E.164 recommendations. The area code 2931 is classified as a geographic code, meaning it is tied to a specific physical location. Calls to this code are routed over the PSTN and are subject to standard local and long-distance tariffs. As of the latest ENACOM (Ente Nacional de Comunicaciones) updates, there are no overlay codes in this region, so the area code is unique for the area. However, users should be aware of the growing adoption of VoIP services, which may present caller ID information differently but do not alter the dialing format.
For callers within Argentina, it is essential to include the trunk prefix 0 when dialing from a different area code. International callers must omit the trunk prefix and use the country code +54. Always verify the local number length, as Argentine fixed-line numbers are typically 6 to 8 digits depending on the region; in this case, it is 6 digits.