Area Code 3874 – Salta, Salta
The phone area code for Salta, Salta is 3874 (international format +543874). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3874
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Salta, Salta
Overview of Area Code 3874
Area code 3874 is a geographic National Destination Code (NDC) assigned to the city of Salta, the capital of the homonymous province in northwestern Argentina. It serves the metropolitan area of Salta, including the city center and surrounding suburban districts. As part of the Argentine national numbering plan, this code is used for fixed-line (PSTN) services, and it is administered under the country's telecom regulator, ENACOM.
Geographic Coverage and Dialing
The code covers the urban and peri-urban zones of Salta, a major economic and cultural hub. Local numbers within this area consist of seven digits, making the complete national significant number (NSN) ten digits when prefixed by the area code (e.g., 3874 123456). For calls within the same area code, local dialing typically requires only the seven-digit subscriber number, omitting the area code. However, for all calls from outside the code, including from other Argentine provinces, callers must dial 0 (trunk prefix) followed by 3874 and the subscriber number. From abroad, the international format is +54 3874 123456, replacing the trunk prefix with the country code.
Caller Instructions
- Local callers (within 3874): Dial the seven-digit number directly (e.g., 123456).
- National long-distance callers (from other Argentine cities): Dial 0 3874 123456.
- International callers: Dial +54 3874 123456.
Overlay and Numbering Considerations
Currently, area code 3874 does not have an overlay code; it remains the sole geographic code for Salta city. However, as demand for fixed lines grows, ENACOM may introduce additional numbering resources. For VoIP and mobile users, calls to 3874 numbers are treated as geographic calls, and per ENACOM regulations, mobile operators must route calls to fixed lines with appropriate interconnection rates. Number portability is available for fixed lines, allowing subscribers to retain their numbers when changing operators within the same geographic area.
Practical Examples
To illustrate, a local business in Salta with the number 4567890 would be reached by:
- Local caller: 4567890
- Caller from Buenos Aires: 0 3874 4567890
- Caller from the USA: +54 3874 4567890
Always verify the current dialing procedures with your telecom provider, as trunk prefix requirements may vary in some regions.