Area Code +33-457-(580000...589999) located in Grenoble, 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 : 580000 Subscriber Number To : 589999 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 : 38 Region Name : ISERE City : Grenoble Timezone : Europe/Paris Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 45.1900 Longitude : 5.7200 ‹ previous : +33-457-(570000...579999) next › : +33-457-(590000...599999) Dialling Instructions For trunk calls: 0 457 580000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 457 580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 580000 ~ 589999 (Count: 10,000) Example: +33-457-580000 / 0033-457-580000 (0457-580000 / 0-457-580000) +33-457-580001 / 0033-457-580001 (0457-580001 / 0-457-580001) +33-457-580002 / 0033-457-580002 (0457-580002 / 0-457-580002) +33-457-580003 / 0033-457-580003 (0457-580003 / 0-457-580003) +33-457-580004 / 0033-457-580004 (0457-580004 / 0-457-580004) ...+33-457-xxxxxx / 0033-457-xxxxxx (0457-xxxxxx / 0-457-xxxxxx) ...+33-457-589995 / 0033-457-589995 (0457-589995 / 0-457-589995) +33-457-589996 / 0033-457-589996 (0457-589996 / 0-457-589996) +33-457-589997 / 0033-457-589997 (0457-589997 / 0-457-589997) +33-457-589998 / 0033-457-589998 (0457-589998 / 0-457-589998) +33-457-589999 / 0033-457-589999 (0457-589999 / 0-457-589999)