Area Code +39-031-(637...6379999) located in Erba, Como (CO), more detail is as below. Place International Dialing Code : 39 International Prefix : 00 National Destination Code : 031 Subscriber Number From : 637 Subscriber Number To : 6379999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Telecom 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 : CO Region Name : Como City : Erba Timezone : Europe/Rome Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 6 Latitude : 45.8100 Longitude : 9.2200 ‹ previous : +39-031-(636...6369999) next › : +39-031-(638...6389999) Dialling Instructions For trunk calls: - 031 637 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 39 031 637 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 637 ~ 6379999 (Count: 6,379,363) Example: +39-031-0000637 / 0039-031-0000637 (031-0000637 / -031-0000637) +39-031-0000638 / 0039-031-0000638 (031-0000638 / -031-0000638) +39-031-0000639 / 0039-031-0000639 (031-0000639 / -031-0000639) +39-031-0000640 / 0039-031-0000640 (031-0000640 / -031-0000640) +39-031-0000641 / 0039-031-0000641 (031-0000641 / -031-0000641) ...+39-031-xxxxxxx / 0039-031-xxxxxxx (031-xxxxxxx / -031-xxxxxxx) ...+39-031-6379995 / 0039-031-6379995 (031-6379995 / -031-6379995) +39-031-6379996 / 0039-031-6379996 (031-6379996 / -031-6379996) +39-031-6379997 / 0039-031-6379997 (031-6379997 / -031-6379997) +39-031-6379998 / 0039-031-6379998 (031-6379998 / -031-6379998) +39-031-6379999 / 0039-031-6379999 (031-6379999 / -031-6379999)