Area Code +33-438-(780000...789999) located in Grenoble, ISERE (38), more detail is as below. Place International Dialing Code : 33 International Prefix : 00 National Prefix : 0 National Destination Code : 438 Subscriber Number From : 780000 Subscriber Number To : 789999 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 : FRANCE TELECOM 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 : +33-438-(750000...759999) next › : +33-438-(860000...869999) Dialling Instructions For trunk calls: 0 438 780000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 438 780000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 780000 ~ 789999 (Count: 10,000) Example: +33-438-780000 / 0033-438-780000 (0438-780000 / 0-438-780000) +33-438-780001 / 0033-438-780001 (0438-780001 / 0-438-780001) +33-438-780002 / 0033-438-780002 (0438-780002 / 0-438-780002) +33-438-780003 / 0033-438-780003 (0438-780003 / 0-438-780003) +33-438-780004 / 0033-438-780004 (0438-780004 / 0-438-780004) ...+33-438-xxxxxx / 0033-438-xxxxxx (0438-xxxxxx / 0-438-xxxxxx) ...+33-438-789995 / 0033-438-789995 (0438-789995 / 0-438-789995) +33-438-789996 / 0033-438-789996 (0438-789996 / 0-438-789996) +33-438-789997 / 0033-438-789997 (0438-789997 / 0-438-789997) +33-438-789998 / 0033-438-789998 (0438-789998 / 0-438-789998) +33-438-789999 / 0033-438-789999 (0438-789999 / 0-438-789999)