Area Code 3433 – Paraná, Entre Ríos
The phone area code for Paraná, Entre Ríos is 3433 (international format +543433). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3433
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Paraná, Entre Ríos
Overview of Area Code 3433
Area code 3433 is a geographic National Destination Code (NDC) assigned to the city of Paraná, the capital of the Entre Ríos Province in northeastern Argentina. This code is part of the Argentine national numbering plan, which follows ITU-T E.164 recommendations. The region served by 3433 includes Paraná and its immediate metropolitan area, encompassing localities such as San Benito, Colonia Avellaneda, and Sauce Montrull. The city is a major administrative and commercial hub, with a population exceeding 250,000 in the urban agglomeration.
Dialing Formats
When calling a fixed-line number in Paraná from within Argentina, the national trunk prefix 0 is used, followed by the area code and the subscriber number. The complete national format is: 0-3433-XXXXXXX (where X denotes the 7-digit local number). For example, a local number such as 456-7890 would be dialed as 03433 456-7890 from other Argentine cities.
For international callers, the Argentine country code +54 is used, and the leading 0 of the national prefix is omitted. The international format is: +54-3433-XXXXXXX. Thus, the same example would be dialed as +54 3433 456-7890 from abroad.
Local Calling and Overlays
Within Paraná, local calls are made by dialing only the 7-digit subscriber number, without the area code. However, due to the expansion of telecommunication services, an overlay plan may be implemented in the future to introduce additional area codes. As of now, 3433 remains the sole geographic code for Paraná, and no overlay is active. Callers should always verify the number length and format with their service provider to avoid misdialing.
Regulatory and Technical Notes
The Argentine communications regulator, ENACOM, oversees the assignment and management of area codes. Fixed-line numbers under 3433 are primarily used by residential and business subscribers connected to the PSTN. With the growth of VoIP and mobile services, some numbers may be ported to alternative technologies, but the geographic association remains for routing and emergency services (e.g., 911). For accurate billing and routing, it is essential to use the correct prefix when placing calls.