Area Code +33-231-(310000...319999) located in Lisieux, CALVADOS (14), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 231 Subscriber Number From : 310000 Subscriber Number To : 319999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : FRANCE TELECOM Click here to buy France Area Code Database Other Information Language Code : fr (French) Country Number : 250 (France) Country Code : FR (France) Region Code : 14 Region Name : CALVADOS City : Lisieux Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 49.1500 Longitude : 0.2300 ‹ previous : +33-231-(300000...309999) next › : +33-231-(320000...329999) Dialling Instructions For trunk calls: 0 231 310000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 231 310000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 310000 ~ 319999 (Count: 10,000) Example: +33-231-310000 / 0033-231-310000 (0231-310000 / 0-231-310000) +33-231-310001 / 0033-231-310001 (0231-310001 / 0-231-310001) +33-231-310002 / 0033-231-310002 (0231-310002 / 0-231-310002) +33-231-310003 / 0033-231-310003 (0231-310003 / 0-231-310003) +33-231-310004 / 0033-231-310004 (0231-310004 / 0-231-310004) ...+33-231-xxxxxx / 0033-231-xxxxxx (0231-xxxxxx / 0-231-xxxxxx) ...+33-231-319995 / 0033-231-319995 (0231-319995 / 0-231-319995) +33-231-319996 / 0033-231-319996 (0231-319996 / 0-231-319996) +33-231-319997 / 0033-231-319997 (0231-319997 / 0-231-319997) +33-231-319998 / 0033-231-319998 (0231-319998 / 0-231-319998) +33-231-319999 / 0033-231-319999 (0231-319999 / 0-231-319999)