Area Code +352-23-(500000...509999) 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 : 500000 Subscriber Number To : 509999 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-(490000...499999) next › : +352-23-(510000...519999) Dialling Instructions For trunk calls: - 23 500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 352 23 500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 500000 ~ 509999 (Count: 10,000) Example: +352-23-500000 / 00352-23-500000 (23-500000 / -23-500000) +352-23-500001 / 00352-23-500001 (23-500001 / -23-500001) +352-23-500002 / 00352-23-500002 (23-500002 / -23-500002) +352-23-500003 / 00352-23-500003 (23-500003 / -23-500003) +352-23-500004 / 00352-23-500004 (23-500004 / -23-500004) ...+352-23-xxxxxx / 00352-23-xxxxxx (23-xxxxxx / -23-xxxxxx) ...+352-23-509995 / 00352-23-509995 (23-509995 / -23-509995) +352-23-509996 / 00352-23-509996 (23-509996 / -23-509996) +352-23-509997 / 00352-23-509997 (23-509997 / -23-509997) +352-23-509998 / 00352-23-509998 (23-509998 / -23-509998) +352-23-509999 / 00352-23-509999 (23-509999 / -23-509999)