Area Code 3891 – Graneros, Tucumán
The phone area code for Graneros, Tucumán is 3891 (international format +543891). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3891
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Graneros, Tucumán
Overview of Area Code 3891
Area code 3891 is a geographic National Destination Code (NDC) assigned to the department of Graneros in the province of Tucumán, Argentina. This code is part of the national numbering plan administered by the Ente Nacional de Comunicaciones (ENACOM), following ITU-T E.164 recommendations. Graneros is a rural department located in the southeastern corner of Tucumán, bordering the provinces of Santiago del Estero and Catamarca. The region is primarily agricultural, with the town of Graneros serving as the main urban center and administrative seat.
Geographic Coverage and Local Dialing
The 3891 code covers the entire department of Graneros, including its principal localities: Graneros, La Cañada, Los Sarmientos, and Pueblo Viejo. For local calls within the same area code, subscribers dial only the seven-digit local number. For example, to call a landline in Graneros from another number within 3891, simply dial the seven-digit subscriber number (e.g., 4XX-XXXX).
National and International Dialing Formats
When calling from another province in Argentina, the caller must dial the national trunk prefix 0, followed by the area code 3891 and the seven-digit local number. For instance, a call from Buenos Aires to Graneros would be dialed as 0-3891-4XX-XXXX. For international callers, the format is +54 3891 4XX-XXXX, where +54 is Argentina's country calling code. The leading '0' is omitted when dialing from abroad.
Overlay and Numbering Considerations
Currently, there is no overlay code in the 3891 area; the code serves exclusively the Graneros department. However, as part of ENACOM's ongoing numbering plan optimization, future changes are possible. Subscribers should always verify the current dialing procedures with their service provider. The number length for geographic lines is fixed at ten digits (including the area code) for national calls, and eleven digits for international calls (including the country code).
Caller Instructions
- Local callers (within 3891): Dial only the seven-digit local number.
- National callers (other provinces): Dial 0 + 3891 + local number.
- International callers: Dial +54 3891 + local number.
This structure ensures seamless connectivity for both residential and business users in the region, aligning with Argentina's national telecommunications framework.