Italy Address Generator

How an Italian address is written

Poste Italiane’s layout puts the street first with the civic number after the name, usually separated by a comma: Via dei Tigli, 14. The last line contains the five-digit CAP, the comune and the two-letter province code (sigla): 40125 Bologna BO. Apartment details — staircase (Scala B) and flat number (Interno 7 or int. 7) — go on their own line or after the civic number. In smaller places a frazione (hamlet) name may appear on a line above the CAP line.

The street type is part of the name and is normally written in full: Via, Viale, Piazza, Corso, Largo, Vicolo. Civic numbers can carry a slash or letter (14/B), and Genoa and Florence use separate red numbering for shops (14r).

CAP structure

The Codice di Avviamento Postale has five digits. The first two identify the province area and the third the distribution type: in a provincial capital the CAP usually ends in 100 (85100 Potenza), and larger cities have one code per zone (00118–00199 for Rome, 20121–20162 for Milan). Smaller comuni each have their own CAP, so a comune and its CAP are close to one-to-one outside the big cities.

• Rome and Cagliari start with 0 (00185, 09124); keep the CAP as text.
• Validate with ^\d{5}$. San Marino and Vatican City use Italian-format CAPs (47890, 00120) but are separate countries.

Regions and province codes

Italy has 20 regions, five of them with special autonomy (Sicilia, Sardegna, Valle d’Aosta, Trentino-Alto Adige, Friuli-Venezia Giulia). Regions are not written on addresses; the province sigla is. The siglas are two letters, often the first letters of the capital (MI Milano, TO Torino, RM Roma), and a province drop-down needs a little over 100 entries. Italian also has accents and apostrophes in place names (L'Aquila, Forlì, Valle d'Aosta) that must be stored correctly.

Testing tips for Italian address forms

• Provide a separate field for the province sigla; it is expected on the CAP line and is required by many couriers.
• Accept civic numbers with slashes and letters (14/B, 3A) and do not force them to integers.
• Test long street names like Viale delle Magnolie together with Scala B, Interno 12; some label printers truncate at 35 characters.
• Check that the apostrophe in L'Aquila does not break SQL, CSV or JSON export.

What makes these addresses fictional

Comuni, province siglas, regions and CAP ranges are real; street names are built from generic words (trees, flowers, Fontana, Mulino) with random civic numbers, so any match with a real address is coincidental. Use the data only in test and development systems.

Regions of Italy

The generator uses the 20 first-level regions below, with the codes used in addresses. Cities are picked from 23 places spread across the country, each with postcodes from its own range.

Example Italy test addresses

Validation pattern used for the CAP: ^\d{5}$. It checks the format only — whether a code is actually in use is known only to the postal operator.

Phone numbers in Italy test data

Italian landlines start with 0 and keep it after +39 (06 for Rome, 02 for Milan); mobiles start with 3. No official fictional range is published that we know of, so the generator leaves the phone blank rather than invent numbers that could belong to someone.

Sources

• Postal codes in Italy
• ISO 3166-2:IT

Postcode ranges, region lists and address conventions checked against these sources in October 2026. Street names in the generator are synthetic.

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