Area Code +33-438-(420000...429999) 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 : 420000 Subscriber Number To : 429999 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-(400000...409999) next › : +33-438-(490000...499999) Dialling Instructions For trunk calls: 0 438 420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 33 438 420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 420000 ~ 429999 (Count: 10,000) Example: +33-438-420000 / 0033-438-420000 (0438-420000 / 0-438-420000) +33-438-420001 / 0033-438-420001 (0438-420001 / 0-438-420001) +33-438-420002 / 0033-438-420002 (0438-420002 / 0-438-420002) +33-438-420003 / 0033-438-420003 (0438-420003 / 0-438-420003) +33-438-420004 / 0033-438-420004 (0438-420004 / 0-438-420004) ...+33-438-xxxxxx / 0033-438-xxxxxx (0438-xxxxxx / 0-438-xxxxxx) ...+33-438-429995 / 0033-438-429995 (0438-429995 / 0-438-429995) +33-438-429996 / 0033-438-429996 (0438-429996 / 0-438-429996) +33-438-429997 / 0033-438-429997 (0438-429997 / 0-438-429997) +33-438-429998 / 0033-438-429998 (0438-429998 / 0-438-429998) +33-438-429999 / 0033-438-429999 (0438-429999 / 0-438-429999)