Geographic landline numbers start with the digit 0, while mobile telephone numbers start with 3. Four types of emergency services use three-digit telephone numbers in the group 11X, including 112 for the Carabinieri. Other initial digits denote other services, such as toll-free numbers.
All telephone numbers are 9 digits long (initial 0 plus eight numbers). The first one, two, or three digits after the zero are the area code. The possible formats are: (0x) xxx xx xx, (0xx) xxx xxx, and (0xxx) xx xxx. Originally, there was only one provider of landline telephony, Telekom Slovenije.