Area Code +33-370-(770000...779999) located in Besancon, DOUBS (25), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 370 Subscriber Number From : 770000 Subscriber Number To : 779999 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 : COMPLETEL Click here to buy France Area Code Database Other Information Language Code : fr (French) Country Number : 250 (France) Country Code : FR (France) Region Code : 25 Region Name : DOUBS City : Besancon Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 47.2400 Longitude : 6.0200 ‹ previous : +33-370-(760000...769999) next › : +33-370-(780000...789999) Dialling Instructions For trunk calls: 0 370 770000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 370 770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 770000 ~ 779999 (Count: 10,000) Example: +33-370-770000 / 0033-370-770000 (0370-770000 / 0-370-770000) +33-370-770001 / 0033-370-770001 (0370-770001 / 0-370-770001) +33-370-770002 / 0033-370-770002 (0370-770002 / 0-370-770002) +33-370-770003 / 0033-370-770003 (0370-770003 / 0-370-770003) +33-370-770004 / 0033-370-770004 (0370-770004 / 0-370-770004) ...+33-370-xxxxxx / 0033-370-xxxxxx (0370-xxxxxx / 0-370-xxxxxx) ...+33-370-779995 / 0033-370-779995 (0370-779995 / 0-370-779995) +33-370-779996 / 0033-370-779996 (0370-779996 / 0-370-779996) +33-370-779997 / 0033-370-779997 (0370-779997 / 0-370-779997) +33-370-779998 / 0033-370-779998 (0370-779998 / 0-370-779998) +33-370-779999 / 0033-370-779999 (0370-779999 / 0-370-779999)