Area Code 0731 – Ancona
The phone area code for Ancona is 0731 (international format +390731). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 0731
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Ancona
Geographic Coverage and Administrative Jurisdiction
The Italian area code 0731 is a Geographic National Destination Code (NDC) assigned to the province of Ancona, in the Marche region of central Italy. It serves the city of Ancona, the regional capital, and its immediate hinterland, including municipalities such as Osimo, Camerano, Offagna, and Polverigi. The code is administered under the national numbering plan supervised by AGCOM (Autorità per le Garanzie nelle Comunicazioni) and follows the ITU-T E.164 standard for international dialing.
Dialing Formats and Caller Instructions
Within Italy, calls to numbers in the 0731 area require the full 10-digit number, including the leading zero. For example, a local call to a fixed line in Ancona is dialed as 0731 123456. When calling from abroad, the international prefix (00 or +) is used, followed by the Italian country code 39, and then the number without the leading zero. Thus, the same number becomes +39 731 123456.
It is important to note that Italian fixed-line numbers are not portable across different geographic areas; the prefix 0731 is strictly tied to the Ancona exchange area. Since the 1990s, no area code overlay has been implemented in this region, and the 10-digit dialing format is mandatory for all calls, including local ones.
Numbering Structure and Technical Details
Subscriber numbers within the 0731 area are typically 6 to 7 digits long, following the NDC. The complete national significant number (NSN) is 10 digits, including the leading zero. For international calls, the NSN is 9 to 10 digits (excluding the leading zero). The prefix is exclusively assigned to fixed-line PSTN and VoIP services that are registered to a physical address in the Ancona area. Mobile numbers in Italy use separate non-geographic prefixes (e.g., 3xx) and are not affected by this code.
Practical Guidance for Callers
- Local callers (within Italy): Dial the full number including the 0, e.g., 0731 123456.
- International callers: Dial your country's exit code, then 39, then the number without the leading 0, e.g., +39 731 123456.
- VoIP users: Ensure your provider supports geographic numbering and that the number is correctly formatted with the +39 country code.
For businesses and residents in Ancona, the 0731 prefix is an integral part of their identity, often used in marketing and customer communications. When contacting Italian public services or companies, always verify the correct number to avoid misdialing, as area codes are strictly enforced.