Area Code +33-456-(610000...619999) located in Grenoble, ISERE (38), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 456 Subscriber Number From : 610000 Subscriber Number To : 619999 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 : COLT TECHNOLOGY SERVICES 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 : +33-456-(600000...609999) next › : +33-456-(620000...629999) Dialling Instructions For trunk calls: 0 456 610000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 456 610000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 610000 ~ 619999 (Count: 10,000) Example: +33-456-610000 / 0033-456-610000 (0456-610000 / 0-456-610000) +33-456-610001 / 0033-456-610001 (0456-610001 / 0-456-610001) +33-456-610002 / 0033-456-610002 (0456-610002 / 0-456-610002) +33-456-610003 / 0033-456-610003 (0456-610003 / 0-456-610003) +33-456-610004 / 0033-456-610004 (0456-610004 / 0-456-610004) ...+33-456-xxxxxx / 0033-456-xxxxxx (0456-xxxxxx / 0-456-xxxxxx) ...+33-456-619995 / 0033-456-619995 (0456-619995 / 0-456-619995) +33-456-619996 / 0033-456-619996 (0456-619996 / 0-456-619996) +33-456-619997 / 0033-456-619997 (0456-619997 / 0-456-619997) +33-456-619998 / 0033-456-619998 (0456-619998 / 0-456-619998) +33-456-619999 / 0033-456-619999 (0456-619999 / 0-456-619999)