Area Code +423-660-(600000...699999) located in International Mobile Services, Liechtenstein, more detail is as below. Place International Dialing Code : 423 International Prefix : 00 National Destination Code : 660 Subscriber Number From : 600000 Subscriber Number To : 699999 National Destination Code Length : 3 Uses National Destination Code : No National Significant Number Length : 9 Number Type : M (Mobile, Cellular) Carrier Name : Telecom Liechtenstein AG Click here to buy Liechtenstein Area Code Database Other Information Language Code : de (German) Country Number : 438 (Liechtenstein) Country Code : LI (Liechtenstein) Region Name : Liechtenstein City : International Mobile Services Timezone : Europe/Vaduz Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 47.1400 Longitude : 9.5200 ‹ previous : +423-660-(500000...599999) next › : +423-662-(600000...699999) Dialling Instructions For trunk calls: - 660 600000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 423 660 600000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 600000 ~ 699999 (Count: 100,000) Example: +423-660-600000 / 00423-660-600000 (660-600000 / -660-600000) +423-660-600001 / 00423-660-600001 (660-600001 / -660-600001) +423-660-600002 / 00423-660-600002 (660-600002 / -660-600002) +423-660-600003 / 00423-660-600003 (660-600003 / -660-600003) +423-660-600004 / 00423-660-600004 (660-600004 / -660-600004) ...+423-660-xxxxxx / 00423-660-xxxxxx (660-xxxxxx / -660-xxxxxx) ...+423-660-699995 / 00423-660-699995 (660-699995 / -660-699995) +423-660-699996 / 00423-660-699996 (660-699996 / -660-699996) +423-660-699997 / 00423-660-699997 (660-699997 / -660-699997) +423-660-699998 / 00423-660-699998 (660-699998 / -660-699998) +423-660-699999 / 00423-660-699999 (660-699999 / -660-699999)