Area Code +33-257-(540000...549999) located in Rennes, ILLE ET VILAINE (35), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 257 Subscriber Number From : 540000 Subscriber Number To : 549999 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 : THECALLR Click here to buy France Area Code Database Other Information Language Code : fr (French) Country Number : 250 (France) Country Code : FR (France) Region Code : 35 Region Name : ILLE ET VILAINE City : Rennes Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 48.1100 Longitude : -1.6800 ‹ previous : +33-257-(530000...539999) next › : +33-257-(550000...559999) Dialling Instructions For trunk calls: 0 257 540000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 257 540000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 540000 ~ 549999 (Count: 10,000) Example: +33-257-540000 / 0033-257-540000 (0257-540000 / 0-257-540000) +33-257-540001 / 0033-257-540001 (0257-540001 / 0-257-540001) +33-257-540002 / 0033-257-540002 (0257-540002 / 0-257-540002) +33-257-540003 / 0033-257-540003 (0257-540003 / 0-257-540003) +33-257-540004 / 0033-257-540004 (0257-540004 / 0-257-540004) ...+33-257-xxxxxx / 0033-257-xxxxxx (0257-xxxxxx / 0-257-xxxxxx) ...+33-257-549995 / 0033-257-549995 (0257-549995 / 0-257-549995) +33-257-549996 / 0033-257-549996 (0257-549996 / 0-257-549996) +33-257-549997 / 0033-257-549997 (0257-549997 / 0-257-549997) +33-257-549998 / 0033-257-549998 (0257-549998 / 0-257-549998) +33-257-549999 / 0033-257-549999 (0257-549999 / 0-257-549999)