Italy has one important exception that trips people up: you usually keep the leading 0 in the area code, even with +39. Use the examples below to format the number correctly and avoid failed faxes.
+390 in area codes when dialing internationally06 1234 5678 → +39 06 1234 567802 1234 5678 → +39 02 1234 5678Codes: International Country Codes
0 in Italian area codesNo—Italy is a common exception. Italian area codes usually keep the leading 0 even in international format (+39).
Italy’s country code is +39.
The #1 mistake is removing the leading 0. Also verify the number and retry during Italian business hours if the line is busy.