Area Code +1-831-(2197000...2197999) located in Aptos, California (CA), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 831 Subscriber Number From : 2197000 Subscriber Number To : 2197999 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 : XO CALIFORNIA INC. 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 : CA Region Name : California City : Aptos Timezone : America/Los_Angeles Coordinated Universal Time : -08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 36.9800 Longitude : -121.9000 ‹ previous : +1-831-(2196000...2196999) next › : +1-831-(2198000...2198999) Dialling Instructions For trunk calls: 0 831 2197000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 831 2197000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2197000 ~ 2197999 (Count: 1,000) Example: +1-831-2197000 / 0111-831-2197000 (1831-2197000 / 1-831-2197000) +1-831-2197001 / 0111-831-2197001 (1831-2197001 / 1-831-2197001) +1-831-2197002 / 0111-831-2197002 (1831-2197002 / 1-831-2197002) +1-831-2197003 / 0111-831-2197003 (1831-2197003 / 1-831-2197003) +1-831-2197004 / 0111-831-2197004 (1831-2197004 / 1-831-2197004) ...+1-831-xxxxxxx / 0111-831-xxxxxxx (1831-xxxxxxx / 1-831-xxxxxxx) ...+1-831-2197995 / 0111-831-2197995 (1831-2197995 / 1-831-2197995) +1-831-2197996 / 0111-831-2197996 (1831-2197996 / 1-831-2197996) +1-831-2197997 / 0111-831-2197997 (1831-2197997 / 1-831-2197997) +1-831-2197998 / 0111-831-2197998 (1831-2197998 / 1-831-2197998) +1-831-2197999 / 0111-831-2197999 (1831-2197999 / 1-831-2197999)