Area Code +33-457-(870000...879999) located in Voiron, ISERE (38), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 457 Subscriber Number From : 870000 Subscriber Number To : 879999 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 : FREE Click here to buy France Area Code Database Other Information Language Code : fr (French) Country Number : 250 (France) Country Code : FR (France) Region Code : 38 Region Name : ISERE City : Voiron Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 45.3600 Longitude : 5.5900 ‹ previous : +33-457-(860000...869999) next › : +33-457-(880000...889999) Dialling Instructions For trunk calls: 0 457 870000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 457 870000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 870000 ~ 879999 (Count: 10,000) Example: +33-457-870000 / 0033-457-870000 (0457-870000 / 0-457-870000) +33-457-870001 / 0033-457-870001 (0457-870001 / 0-457-870001) +33-457-870002 / 0033-457-870002 (0457-870002 / 0-457-870002) +33-457-870003 / 0033-457-870003 (0457-870003 / 0-457-870003) +33-457-870004 / 0033-457-870004 (0457-870004 / 0-457-870004) ...+33-457-xxxxxx / 0033-457-xxxxxx (0457-xxxxxx / 0-457-xxxxxx) ...+33-457-879995 / 0033-457-879995 (0457-879995 / 0-457-879995) +33-457-879996 / 0033-457-879996 (0457-879996 / 0-457-879996) +33-457-879997 / 0033-457-879997 (0457-879997 / 0-457-879997) +33-457-879998 / 0033-457-879998 (0457-879998 / 0-457-879998) +33-457-879999 / 0033-457-879999 (0457-879999 / 0-457-879999)