Area Code 31 – Concepcion
The phone area code for Concepcion is 31 (international format +59531). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Concepcion
Overview of Paraguay Area Code 31
Area code 31 is a geographic National Destination Code (NDC) assigned to the city of Concepción and its surrounding metropolitan area in Paraguay. This code is part of the national numbering plan under the administration of the Comisión Nacional de Telecomunicaciones (CONATEL), following ITU-T E.164 recommendations. The region is located in the northern part of the country, bordering Brazil, and serves as a commercial and administrative hub for the Concepción Department.
Geographic Coverage and Dialing Formats
The area code 31 covers the urban and rural zones of Concepción, including nearby districts such as Belén, Horqueta, and Loreto. Subscriber numbers within this code are typically seven digits long, resulting in a complete national significant number (NSN) of nine digits when combined with the area code (e.g., 31 123 456). For local calls within the same area code, callers can dial the seven-digit subscriber number directly, omitting the area code. However, for calls originating from other regions of Paraguay, the full national format (0 31 123 456) is required, with the leading '0' indicating a trunk prefix. International callers must use the country code +595, followed by the area code without the leading '0', and the subscriber number: +595 31 123 456.
Caller Instructions and Numbering Considerations
When dialing from abroad, always replace the trunk prefix '0' with the international access code of your country (e.g., 00 or +), then dial 595 (Paraguay's country code), followed by 31 and the local number. For example, to reach a Concepción landline from the United States, you would dial 011 595 31 123 456. It is important to note that Paraguay has not implemented overlay codes in this region, so the area code remains unique to the geographic area. As with all fixed-line services, calls to this code are routed over the PSTN and may be subject to varying tariffs depending on the operator and the caller's location. For businesses or individuals frequently contacting Concepción, it is advisable to store numbers in international format (+59531...) to ensure compatibility with mobile and VoIP platforms.