Area Code 3856 – Villa Ojo de Agua, Santiago del Estero
The phone area code for Villa Ojo de Agua, Santiago del Estero is 3856 (international format +543856). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3856
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Villa Ojo de Agua, Santiago del Estero
Overview of Area Code 3856
Area code 3856 is a geographic National Destination Code (NDC) within the Argentine national numbering plan, assigned to the locality of Villa Ojo de Agua and its surrounding areas in the province of Santiago del Estero. This code is part of the country's open dialing plan, which requires the inclusion of the national trunk prefix 0 when dialing domestically and the country code +54 for international calls.
Geographic Coverage and Administration
The 3856 code serves the administrative jurisdiction of the Ojo de Agua Department in the southeastern region of Santiago del Estero Province. The primary urban center is Villa Ojo de Agua, a small agricultural and commercial hub located approximately 140 kilometers from the provincial capital, Santiago del Estero. The coverage area includes rural communities and estancias within the department, all of which share the same local exchange.
Dialing Formats and Procedures
For local calls within the 3856 area, subscribers dial the 7-digit subscriber number directly, without any prefix. For example, to call a local number such as 456-7890, simply dial 456-7890.
For domestic long-distance calls from other Argentine provinces, callers must dial the national trunk prefix 0, followed by the area code 3856 and the subscriber number. The complete format is: 0-3856-456-7890.
For international callers, the format is: +54-3856-456-7890. The plus sign represents the international access prefix, which varies by country (e.g., 00 in many countries, 011 in the United States).
Numbering and Overlay Considerations
As of the latest ITU-T E.164 guidelines, the Argentine numbering plan does not currently implement overlay codes for this region. The 3856 code is unique to Villa Ojo de Agua and its environs. Subscriber numbers within this code are 7 digits long, and the total length of an international number is 12 digits (including the country code 54).
When dialing from a mobile phone in Argentina, the same trunk prefix rules apply, but mobile users often have the option to use the national significant number (NSN) without the initial 0 when dialing from abroad. However, for domestic calls, the 0 prefix is mandatory.
Practical Caller Instructions
- Local callers: Dial the 7-digit subscriber number directly.
- Domestic callers outside 3856: Dial 0-3856 followed by the subscriber number.
- International callers: Dial your country's exit code, then 54-3856 and the subscriber number.
For any assistance with routing or to verify a number, consult your telephone service provider or refer to the official Argentine communications regulator (ENACOM).