ANNCSU
Archivio Nazionale dei Numeri Civici delle Strade Urbane (national register of street numbers and urban streets)
Italy's official list of streets and street numbers, kept by Istat and the Revenue Agency and updated by each Comune.
ANNCSU brings together the streets and street numbers of every Italian municipality in a single register. It is managed by Istat (the Italian National Institute of Statistics) and the Revenue Agency (Agenzia delle Entrate); each Comune, the local council, enters and updates its own streets and numbers.
The register is published as open data under the CC BY 4.0 licence and is updated every month. For each street number it gives the street, the number, any suffix (for example 7/A) and, where the Comune has entered them, the geographic coordinates. As of September 2026 about a third of Italy's street numbers do not yet have coordinates.
The report uses ANNCSU to recognise the address you type and find the exact position of the building, without sending the address to external services.
Official source: www.anncsu.gov.it
Related entries
Check an address
Enter the address: the report summarises risks, local prices, population, services and transport, with the source for every figure.
For example: Via Dante 7, Milan.