Area Code 3875 – Salta, Salta

Geographic Overview

The +54 3875 prefix is a geographic National Destination Code (NDC) assigned to the city of Salta, the capital of the Salta Province in northwestern Argentina. This code serves the urban and suburban areas of Salta city, including its administrative, commercial, and residential districts. As part of the Argentine numbering plan, this code is used for fixed-line PSTN services, and since the liberalization of the telecom market, it may also be used by VoIP providers offering local numbers.

Dialing Formats

To call a Salta fixed-line number from within Argentina, you must dial the national trunk prefix 0 followed by the area code and the subscriber number. The complete national format is: 0 3875 XXX XXX (where X represents the 6- or 7-digit local number). For example, a local number might be dialed as 0 3875 42-1234 from other Argentine cities.

From outside Argentina, callers must use the international access prefix (e.g., 00 from most countries) followed by the country code 54, the area code 3875 (without the leading 0), and the subscriber number. The international format is: +54 3875 XXX XXX. For instance, to call a Salta number from the United States, you would dial: 011 54 3875 42-1234.

Local Dialing and Overlay

Within the Salta local calling area, calls between fixed-line numbers sharing the same area code may be dialed using only the subscriber number, depending on the specific local dialing plan. However, due to the increasing complexity of the Argentine numbering system, it is always safe to use the full national format (0 3875 ...) even for local calls, as this ensures proper routing.

As of the latest ITU-T E.164 updates, there is no overlay code for Salta; the 3875 code remains the sole geographic code for the city. However, the National Communications Entity (ENACOM) periodically reviews numbering resources, so users should verify any changes if they experience dialing issues.

Caller Instructions

For local callers (within Salta): If your telephone service provider supports 7-digit dialing, you may dial only the local number. Otherwise, dial the full national format. For long-distance callers within Argentina: Always dial 0 3875 followed by the subscriber number. For international callers: Dial your country's exit code, then 54, then 3875, and then the subscriber number. Remember to omit the trunk prefix 0 when calling from abroad.

This geographic code is part of the Argentine public switched telephone network (PSTN) and is subject to standard tariffing for national and international calls. For the most accurate and up-to-date dialing instructions, consult your telecom operator or the official ENACOM numbering plan.