<P> Italy uses an open numbering plan in which the length of subscriber telephone numbers varies from six to eleven digits . The dialing procedures for callers mandate that the full telephone number is always dialed, including the area code, which is called prefix (prefisso in Italian). </P> <P> When communicating phone numbers it is usual to group the digits, but there are no fixed rules for grouping . The same phone number is likely to be written or pronounced differently by different people . Several symbols can be used to group digits; spaces are common, but dots and hyphens are often seen as well . </P> <P> The minimum number length is 3 digits and the maximum is 12 . </P> <P> Landline numbers start with the digit 0 and are 6 to 11 digits long, although they are rarely shorter than 9 . They are composed of a variable length prefix followed by a variable length subscriber number . </P>

How many digits are in an italian phone number
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