Area Code +1-603-(8350000...8350999) 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 : 8350000 Subscriber Number To : 8350999 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 : OTEL TELEKOM INC 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-(8348000...8348999) next › : +1-603-(8351000...8351999) Dialling Instructions For trunk calls: 0 603 8350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 603 8350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8350000 ~ 8350999 (Count: 1,000) Example: +1-603-8350000 / 0111-603-8350000 (1603-8350000 / 1-603-8350000) +1-603-8350001 / 0111-603-8350001 (1603-8350001 / 1-603-8350001) +1-603-8350002 / 0111-603-8350002 (1603-8350002 / 1-603-8350002) +1-603-8350003 / 0111-603-8350003 (1603-8350003 / 1-603-8350003) +1-603-8350004 / 0111-603-8350004 (1603-8350004 / 1-603-8350004) ...+1-603-xxxxxxx / 0111-603-xxxxxxx (1603-xxxxxxx / 1-603-xxxxxxx) ...+1-603-8350995 / 0111-603-8350995 (1603-8350995 / 1-603-8350995) +1-603-8350996 / 0111-603-8350996 (1603-8350996 / 1-603-8350996) +1-603-8350997 / 0111-603-8350997 (1603-8350997 / 1-603-8350997) +1-603-8350998 / 0111-603-8350998 (1603-8350998 / 1-603-8350998) +1-603-8350999 / 0111-603-8350999 (1603-8350999 / 1-603-8350999)