Area Code 3489 – Campana, Buenos Aires

Overview of Area Code 3489

Area code 3489 is a geographic National Destination Code (NDC) within the Argentine national numbering plan, assigned under the country calling code +54. It serves the city of Campana and its surrounding localities in the northeastern part of Buenos Aires Province. This region is part of the industrial corridor along the Paraná River, and the code covers urban and semi-rural areas, including towns such as Zárate (though Zárate primarily uses 3487, some nearby districts may fall under 3489 depending on the specific telephone exchange). The administrative jurisdiction is the Partido de Campana, with the city of Campana as the principal urban center.

Geographic Coverage and Local Dialing

The 3489 code covers a compact geographic area, primarily the city of Campana and adjacent rural communities. For local calls within the same area code, subscribers typically dial the 7-digit subscriber number directly. However, due to the implementation of the Plan de Numeración Nacional and the introduction of overlays in some regions, it is always recommended to dial the full national number (including the area code) even for on-net calls to ensure connectivity, especially when calling from mobile networks.

International and National Dialing Formats

To call a number in Campana from abroad, international callers must dial the international access prefix (e.g., 00 from most countries, or +), followed by 54 (Argentina's country code), then the area code 3489 (without the leading 0), and finally the 7-digit local subscriber number. The complete international format is: +54 3489 XXX XXXX.

For domestic long-distance calls from other Argentine provinces or from mobile phones, the national trunk prefix 0 is used, followed by the area code and subscriber number: 0 3489 XXX XXXX. When calling from a mobile phone within Argentina, it is common to include the area code even for local calls, as mobile numbers are non-geographic and require the full national number.

Overlay and Numbering Plan Considerations

As of the latest ITU-T E.164 guidelines and Argentina's ENACOM regulations, area code 3489 does not currently have an overlay code. However, subscribers should be aware that the national dialing plan mandates 10-digit dialing (excluding the trunk prefix 0) for all calls within Argentina. This means that even local calls between landlines in the same area code may require dialing the area code followed by the subscriber number when using mobile or VoIP services. Always verify with your service provider for specific dialing instructions.

Caller Instructions

For local callers (within Campana): Dial the 7-digit subscriber number directly if your line is a landline and the call is on-net. For mobile or VoIP calls, dial 3489 followed by the subscriber number.

For national callers (outside 3489): Dial 0, then 3489, then the 7-digit number.

For international callers: Dial your country's exit code, then 54, then 3489, then the 7-digit number.