Area Code +1-603-(5888000...5888999) located in Antrim, 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 : 5888000 Subscriber Number To : 5888999 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 : CONTOOCOOK VLY TEL 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 : Antrim Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 43.0300 Longitude : -71.9400 ‹ previous : +1-603-(5887000...5887999) next › : +1-603-(5889000...5889999) Dialling Instructions For trunk calls: 0 603 5888000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 603 5888000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5888000 ~ 5888999 (Count: 1,000) Example: +1-603-5888000 / 0111-603-5888000 (1603-5888000 / 1-603-5888000) +1-603-5888001 / 0111-603-5888001 (1603-5888001 / 1-603-5888001) +1-603-5888002 / 0111-603-5888002 (1603-5888002 / 1-603-5888002) +1-603-5888003 / 0111-603-5888003 (1603-5888003 / 1-603-5888003) +1-603-5888004 / 0111-603-5888004 (1603-5888004 / 1-603-5888004) ...+1-603-xxxxxxx / 0111-603-xxxxxxx (1603-xxxxxxx / 1-603-xxxxxxx) ...+1-603-5888995 / 0111-603-5888995 (1603-5888995 / 1-603-5888995) +1-603-5888996 / 0111-603-5888996 (1603-5888996 / 1-603-5888996) +1-603-5888997 / 0111-603-5888997 (1603-5888997 / 1-603-5888997) +1-603-5888998 / 0111-603-5888998 (1603-5888998 / 1-603-5888998) +1-603-5888999 / 0111-603-5888999 (1603-5888999 / 1-603-5888999)