Area Code +39-031-(663...6639999) located in Asso, Como (CO), more detail is as below. Place International Dialing Code : 39 International Prefix : 00 National Destination Code : 031 Subscriber Number From : 663 Subscriber Number To : 6639999 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 : Wind Telecomunicazioni 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 : Asso Timezone : Europe/Rome Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 6 Latitude : 45.8600 Longitude : 9.2700 ‹ previous : +39-031-(662...6629999) next › : +39-031-(664...6649999) Dialling Instructions For trunk calls: - 031 663 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 39 031 663 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 663 ~ 6639999 (Count: 6,639,337) Example: +39-031-0000663 / 0039-031-0000663 (031-0000663 / -031-0000663) +39-031-0000664 / 0039-031-0000664 (031-0000664 / -031-0000664) +39-031-0000665 / 0039-031-0000665 (031-0000665 / -031-0000665) +39-031-0000666 / 0039-031-0000666 (031-0000666 / -031-0000666) +39-031-0000667 / 0039-031-0000667 (031-0000667 / -031-0000667) ...+39-031-xxxxxxx / 0039-031-xxxxxxx (031-xxxxxxx / -031-xxxxxxx) ...+39-031-6639995 / 0039-031-6639995 (031-6639995 / -031-6639995) +39-031-6639996 / 0039-031-6639996 (031-6639996 / -031-6639996) +39-031-6639997 / 0039-031-6639997 (031-6639997 / -031-6639997) +39-031-6639998 / 0039-031-6639998 (031-6639998 / -031-6639998) +39-031-6639999 / 0039-031-6639999 (031-6639999 / -031-6639999)