Area Code +352-23-(990000...999999) 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 : 990000 Subscriber Number To : 999999 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-(970000...979999) next › : +352-24-(100000...199999) Dialling Instructions For trunk calls: - 23 990000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 352 23 990000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 990000 ~ 999999 (Count: 10,000) Example: +352-23-990000 / 00352-23-990000 (23-990000 / -23-990000) +352-23-990001 / 00352-23-990001 (23-990001 / -23-990001) +352-23-990002 / 00352-23-990002 (23-990002 / -23-990002) +352-23-990003 / 00352-23-990003 (23-990003 / -23-990003) +352-23-990004 / 00352-23-990004 (23-990004 / -23-990004) ...+352-23-xxxxxx / 00352-23-xxxxxx (23-xxxxxx / -23-xxxxxx) ...+352-23-999995 / 00352-23-999995 (23-999995 / -23-999995) +352-23-999996 / 00352-23-999996 (23-999996 / -23-999996) +352-23-999997 / 00352-23-999997 (23-999997 / -23-999997) +352-23-999998 / 00352-23-999998 (23-999998 / -23-999998) +352-23-999999 / 00352-23-999999 (23-999999 / -23-999999)