Area Code +352-23-(780000...789999) located in Mondorf-les-Bains/Bascharage/Noerdange/Remich, Luxembourg, more detail is as below. Place International Dialing Code : 352 International Prefix : 00 National Destination Code : 23 Subscriber Number From : 780000 Subscriber Number To : 789999 National Destination Code Length : 2 Uses National Destination Code : No National Significant Number Length : 8 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Entreprise des Postes et Télécommunications Click here to buy Luxembourg Area Code Database Other Information Language Code : fr (French) Country Number : 442 (Luxembourg) Country Code : LU (Luxembourg) Region Name : Luxembourg City : Mondorf-les-Bains/Bascharage/Noerdange/Remich Timezone : Europe/Luxembourg Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 49.6000 Longitude : 6.1500 ‹ previous : +352-23-(770000...779999) next › : +352-23-(790000...799999) Dialling Instructions For trunk calls: - 23 780000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 352 23 780000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 780000 ~ 789999 (Count: 10,000) Example: +352-23-780000 / 00352-23-780000 (23-780000 / -23-780000) +352-23-780001 / 00352-23-780001 (23-780001 / -23-780001) +352-23-780002 / 00352-23-780002 (23-780002 / -23-780002) +352-23-780003 / 00352-23-780003 (23-780003 / -23-780003) +352-23-780004 / 00352-23-780004 (23-780004 / -23-780004) ...+352-23-xxxxxx / 00352-23-xxxxxx (23-xxxxxx / -23-xxxxxx) ...+352-23-789995 / 00352-23-789995 (23-789995 / -23-789995) +352-23-789996 / 00352-23-789996 (23-789996 / -23-789996) +352-23-789997 / 00352-23-789997 (23-789997 / -23-789997) +352-23-789998 / 00352-23-789998 (23-789998 / -23-789998) +352-23-789999 / 00352-23-789999 (23-789999 / -23-789999)