Area Code 3757 – Puerto Iguazú, Misiones
The phone area code for Puerto Iguazú, Misiones is 3757 (international format +543757). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3757
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Puerto Iguazú, Misiones
Overview of Area Code 3757
Area code 3757 is a geographic National Destination Code (NDC) assigned to the northeastern Argentine province of Misiones. It serves the city of Puerto Iguazú and its surrounding localities, including the tri-border area with Brazil and Paraguay. This region is internationally renowned for the Iguazú Falls (Cataratas del Iguazú), a UNESCO World Heritage site, and is a major hub for tourism and cross-border commerce.
Geographic Coverage and Administrative Jurisdiction
The code 3757 covers the northern part of Misiones Province, specifically the department of Iguazú. Key towns and areas within this NDC include Puerto Iguazú, Puerto Esperanza, Wanda (famous for its mines), and Colonia Victoria. The region is bordered by the Iguazú River to the north (separating Argentina from Brazil) and the Paraná River to the west (separating Argentina from Paraguay). The administrative center is Puerto Iguazú, which hosts the Argentine side of the Iguazú Falls National Park.
Dialing Formats and Instructions
For local calls within the same area code (3757), subscribers can dial the 7-digit subscriber number directly (e.g., 420000). For calls from other Argentine provinces or from abroad, the full national or international format is required.
- National dialing (within Argentina): Dial 0 (trunk prefix) + 3757 + subscriber number. Example: 0 3757 420000.
- International dialing (from outside Argentina): Dial the international access code (e.g., 00 from most countries) + 54 (Argentina country code) + 3757 + subscriber number. Example: +54 3757 420000.
Callers from Brazil or Paraguay may need to use their country's specific international dialing prefixes to reach Argentina. For instance, from Brazil, dial 00 54 3757 420000 (using the Brazilian operator code if required).
Overlay and Numbering Considerations
As of the latest ITU-T E.164 national numbering plan, area code 3757 does not have an overlay. Subscribers within the same NDC can dial 7-digit numbers without including the area code. However, due to the growth of mobile and VoIP services, it is essential to always include the area code when dialing from a mobile phone, as many mobile numbers are non-geographic and require the full national number.
Practical Tips for Callers
When calling a landline in Puerto Iguazú from abroad, ensure you have the correct subscriber number (7 digits). If you are unsure, verify with the recipient. For travelers, local SIM cards and VoIP services are widely available, but always check the dialing format to avoid misdials. The Argentine telephone system is regulated by ENACOM, and number portability is available for both fixed and mobile services, so the geographic association of a number may not always reflect the physical location of the line.