Italy Complete Address Format Guide
Italian CAP postal codes contain five digits. Leading zeroes are significant, especially for Rome and other areas, so string storage is required. Italian fixed-line area codes retain the leading zero even in international format. Mobile numbers usually begin 3 and do not use that geographic zero rule. Given name precedes family name in normal display. Accents and apostrophes are valid, and multi-word surnames should be preserved without guessing which token is primary.
Standard format
Giulia Rossi / Lorenzo Romano โ street โ NNNNN
Example
00100 ยท +39 06 6982
Implementation and validation notes
Italian CAP postal codes contain five digits. Leading zeroes are significant, especially for Rome and other areas, so string storage is required. Italian fixed-line area codes retain the leading zero even in international format. Mobile numbers usually begin 3 and do not use that geographic zero rule. Given name precedes family name in normal display. Accents and apostrophes are valid, and multi-word surnames should be preserved without guessing which token is primary.
Validate required state, character set, length, and syntax on the client, then repeat validation on the server. Preserve the original input and normalize into a separate field; never truncate local scripts, compound names, or leading zeroes to fit a single Western assumption.
This guide describes common formats rather than an official registry and cannot enumerate every exception. Generated output is for testing only, not delivery, calling, identity verification, or real account activity.
Postal code
NNNNN
Italian CAP postal codes contain five digits. Leading zeroes are significant, especially for Rome and other areas, so string storage is required.
Phone
+39 area/subscriber
Italian fixed-line area codes retain the leading zero even in international format. Mobile numbers usually begin 3 and do not use that geographic zero rule.
Names
Giulia Rossi / Lorenzo Romano
Given name precedes family name in normal display. Accents and apostrophes are valid, and multi-word surnames should be preserved without guessing which token is primary.
Related resources
Frequently asked questions
What is the standard Italy address format?
A common representation is Giulia Rossi / Lorenzo Romano โ street โ NNNNN, for example 00100 ยท +39 06 6982. Italian CAP postal codes contain five digits. Leading zeroes are significant, especially for Rome and other areas, so string storage is required. Italian fixed-line area codes retain the leading zero even in international format. Mobile numbers usually begin 3 and do not use that geographic zero rule. Given name precedes family name in normal display. Accents and apostrophes are valid, and multi-word surnames should be preserved without guessing which token is primary.
How should Italy address test data be stored?
Store the original value as a string so leading zeroes, spaces, hyphens, accents, and local scripts are preserved. Use a separate normalized field for search.
Does correct formatting prove the data is real?
No. Syntax validation cannot prove an address is deliverable, a number is assigned, or a name belongs to a real person.