Area Code +1-603-(8353000...8353999) located in Alstead, New Hampshire (NH), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 603 Subscriber Number From : 8353000 Subscriber Number To : 8353999 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 : LEVEL 3 COMM - NH Click here to buy United States Area Code Database Other Information Language Code : en (English) Country Number : 840 (United States) Country Code : US (United States) Region Code : NH Region Name : New Hampshire City : Alstead Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 43.1500 Longitude : -72.3600 ‹ previous : +1-603-(8352000...8352999) next › : +1-603-(8354000...8354999) Dialling Instructions For trunk calls: 0 603 8353000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 603 8353000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8353000 ~ 8353999 (Count: 1,000) Example: +1-603-8353000 / 0111-603-8353000 (1603-8353000 / 1-603-8353000) +1-603-8353001 / 0111-603-8353001 (1603-8353001 / 1-603-8353001) +1-603-8353002 / 0111-603-8353002 (1603-8353002 / 1-603-8353002) +1-603-8353003 / 0111-603-8353003 (1603-8353003 / 1-603-8353003) +1-603-8353004 / 0111-603-8353004 (1603-8353004 / 1-603-8353004) ...+1-603-xxxxxxx / 0111-603-xxxxxxx (1603-xxxxxxx / 1-603-xxxxxxx) ...+1-603-8353995 / 0111-603-8353995 (1603-8353995 / 1-603-8353995) +1-603-8353996 / 0111-603-8353996 (1603-8353996 / 1-603-8353996) +1-603-8353997 / 0111-603-8353997 (1603-8353997 / 1-603-8353997) +1-603-8353998 / 0111-603-8353998 (1603-8353998 / 1-603-8353998) +1-603-8353999 / 0111-603-8353999 (1603-8353999 / 1-603-8353999)