Area Code +33-310-(830000...839999) located in Chalons-En-Champagne, MARNE (51), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 310 Subscriber Number From : 830000 Subscriber Number To : 839999 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 : VERIZON France Click here to buy France Area Code Database Other Information Language Code : fr (French) Country Number : 250 (France) Country Code : FR (France) Region Code : 51 Region Name : MARNE City : Chalons-En-Champagne Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.9600 Longitude : 4.3600 ‹ previous : +33-310-(820000...829999) next › : +33-310-(840000...849999) Dialling Instructions For trunk calls: 0 310 830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 310 830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 830000 ~ 839999 (Count: 10,000) Example: +33-310-830000 / 0033-310-830000 (0310-830000 / 0-310-830000) +33-310-830001 / 0033-310-830001 (0310-830001 / 0-310-830001) +33-310-830002 / 0033-310-830002 (0310-830002 / 0-310-830002) +33-310-830003 / 0033-310-830003 (0310-830003 / 0-310-830003) +33-310-830004 / 0033-310-830004 (0310-830004 / 0-310-830004) ...+33-310-xxxxxx / 0033-310-xxxxxx (0310-xxxxxx / 0-310-xxxxxx) ...+33-310-839995 / 0033-310-839995 (0310-839995 / 0-310-839995) +33-310-839996 / 0033-310-839996 (0310-839996 / 0-310-839996) +33-310-839997 / 0033-310-839997 (0310-839997 / 0-310-839997) +33-310-839998 / 0033-310-839998 (0310-839998 / 0-310-839998) +33-310-839999 / 0033-310-839999 (0310-839999 / 0-310-839999)