Area Code +39-0789-(09...099999) located in Olbia, Olbia-Tempio (OL), more detail is as below. Place International Dialing Code : 39 International Prefix : 00 National Destination Code : 0789 Subscriber Number From : 09 Subscriber Number To : 099999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : BT Italia S.p.A. Click here to buy Italy Area Code Database Other Information Language Code : it (Italian) Country Number : 380 (Italy) Country Code : IT (Italy) Region Code : OL Region Name : Olbia-Tempio City : Olbia Timezone : Europe/Rome Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 6 Latitude : 40.9200 Longitude : 9.4900 ‹ previous : +39-0789-(08...089999) next › : +39-0789-(168...168999) Dialling Instructions For trunk calls: - 0789 09 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 39 0789 09 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 09 ~ 099999 (Count: 99,991) Example: +39-0789-000009 / 0039-0789-000009 (0789-000009 / -0789-000009) +39-0789-000010 / 0039-0789-000010 (0789-000010 / -0789-000010) +39-0789-000011 / 0039-0789-000011 (0789-000011 / -0789-000011) +39-0789-000012 / 0039-0789-000012 (0789-000012 / -0789-000012) +39-0789-000013 / 0039-0789-000013 (0789-000013 / -0789-000013) ...+39-0789-xxxxxx / 0039-0789-xxxxxx (0789-xxxxxx / -0789-xxxxxx) ...+39-0789-099995 / 0039-0789-099995 (0789-099995 / -0789-099995) +39-0789-099996 / 0039-0789-099996 (0789-099996 / -0789-099996) +39-0789-099997 / 0039-0789-099997 (0789-099997 / -0789-099997) +39-0789-099998 / 0039-0789-099998 (0789-099998 / -0789-099998) +39-0789-099999 / 0039-0789-099999 (0789-099999 / -0789-099999)