Area Code +1-603-(5883000...5883999) 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 : 5883000 Subscriber Number To : 5883999 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-(5882000...5882999) next › : +1-603-(5884000...5884999) Dialling Instructions For trunk calls: 0 603 5883000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 603 5883000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5883000 ~ 5883999 (Count: 1,000) Example: +1-603-5883000 / 0111-603-5883000 (1603-5883000 / 1-603-5883000) +1-603-5883001 / 0111-603-5883001 (1603-5883001 / 1-603-5883001) +1-603-5883002 / 0111-603-5883002 (1603-5883002 / 1-603-5883002) +1-603-5883003 / 0111-603-5883003 (1603-5883003 / 1-603-5883003) +1-603-5883004 / 0111-603-5883004 (1603-5883004 / 1-603-5883004) ...+1-603-xxxxxxx / 0111-603-xxxxxxx (1603-xxxxxxx / 1-603-xxxxxxx) ...+1-603-5883995 / 0111-603-5883995 (1603-5883995 / 1-603-5883995) +1-603-5883996 / 0111-603-5883996 (1603-5883996 / 1-603-5883996) +1-603-5883997 / 0111-603-5883997 (1603-5883997 / 1-603-5883997) +1-603-5883998 / 0111-603-5883998 (1603-5883998 / 1-603-5883998) +1-603-5883999 / 0111-603-5883999 (1603-5883999 / 1-603-5883999)