Area Code +1-603-(5881000...5881999) 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 : 5881000 Subscriber Number To : 5881999 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-(5880000...5880999) next › : +1-603-(5882000...5882999) Dialling Instructions For trunk calls: 0 603 5881000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 603 5881000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5881000 ~ 5881999 (Count: 1,000) Example: +1-603-5881000 / 0111-603-5881000 (1603-5881000 / 1-603-5881000) +1-603-5881001 / 0111-603-5881001 (1603-5881001 / 1-603-5881001) +1-603-5881002 / 0111-603-5881002 (1603-5881002 / 1-603-5881002) +1-603-5881003 / 0111-603-5881003 (1603-5881003 / 1-603-5881003) +1-603-5881004 / 0111-603-5881004 (1603-5881004 / 1-603-5881004) ...+1-603-xxxxxxx / 0111-603-xxxxxxx (1603-xxxxxxx / 1-603-xxxxxxx) ...+1-603-5881995 / 0111-603-5881995 (1603-5881995 / 1-603-5881995) +1-603-5881996 / 0111-603-5881996 (1603-5881996 / 1-603-5881996) +1-603-5881997 / 0111-603-5881997 (1603-5881997 / 1-603-5881997) +1-603-5881998 / 0111-603-5881998 (1603-5881998 / 1-603-5881998) +1-603-5881999 / 0111-603-5881999 (1603-5881999 / 1-603-5881999)