Area Code 0523 – Piacenza
The phone area code for Piacenza is 0523 (international format +390523). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 0523
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Piacenza
Geographic Coverage and Administrative Jurisdiction
The Italian national destination code (NDC) 0523 is a geographic prefix assigned under the ITU-T E.164 numbering plan to the province of Piacenza, located in the Emilia-Romagna region of northern Italy. This code serves the municipality of Piacenza and its surrounding administrative area, including towns such as Fiorenzuola d'Arda, Castel San Giovanni, Bobbio, and Pontenure. The numbering area corresponds to the former telephone district of Piacenza, which is coterminous with the province boundaries for fixed-line services.
Dialing Formats and Number Structure
When calling a fixed-line subscriber in Piacenza from within Italy, the national significant number (NSN) comprises the trunk prefix 0, the NDC 523, and a subscriber number of 6 to 7 digits. The complete national format is 0523 XXXXXX (or 0523 XXXXXXX for longer numbers). For international callers, the leading zero is omitted, and the number is dialed as +39 523 XXXXXX (or +39 523 XXXXXXX). For example, a local number in Piacenza might be dialed as 0523 456789 domestically and +39 523 456789 from abroad.
Local and International Call Instructions
Within Italy, all geographic numbers must be dialed in full, including the leading 0, even when calling from a phone located in the same area code. This is a mandatory requirement of the Italian numbering plan; there is no local abbreviated dialing for fixed-to-fixed calls. For callers outside Italy, the international access prefix (e.g., 00 from most European countries, or 011 from North America) is followed by the Italian country code 39, then the NDC without the leading zero, and finally the subscriber number. No additional area code or city code is required.
Overlay and Numbering Considerations
As of the current numbering plan, there is no overlay code for Piacenza; the 0523 prefix remains exclusive to the province. However, number portability allows subscribers to retain their geographic numbers when switching fixed-line operators, which means that a number with the 0523 prefix may not necessarily be physically located in Piacenza. For emergency services and directory assistance, callers should use the national emergency numbers (112, 113, 115) or directory inquiries (e.g., 1254), which are independent of the geographic prefix.
Practical Usage for Businesses and Residents
For businesses operating in Piacenza, having a local geographic number enhances trust and local presence. When publishing contact details, always include the full national or international format to avoid confusion. For VoIP or virtual PBX services, ensure that the service provider supports geographic number allocation in Italy and that the number is correctly routed via the PSTN. Remember that calls to 0523 numbers from mobile phones or other fixed lines within Italy are charged according to the caller's tariff plan, typically as a national landline call.