Area Code +352-23-(400000...409999) 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 : 400000 Subscriber Number To : 409999 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-(390000...399999) next › : +352-23-(420000...429999) Dialling Instructions For trunk calls: - 23 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 352 23 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 409999 (Count: 10,000) Example: +352-23-400000 / 00352-23-400000 (23-400000 / -23-400000) +352-23-400001 / 00352-23-400001 (23-400001 / -23-400001) +352-23-400002 / 00352-23-400002 (23-400002 / -23-400002) +352-23-400003 / 00352-23-400003 (23-400003 / -23-400003) +352-23-400004 / 00352-23-400004 (23-400004 / -23-400004) ...+352-23-xxxxxx / 00352-23-xxxxxx (23-xxxxxx / -23-xxxxxx) ...+352-23-409995 / 00352-23-409995 (23-409995 / -23-409995) +352-23-409996 / 00352-23-409996 (23-409996 / -23-409996) +352-23-409997 / 00352-23-409997 (23-409997 / -23-409997) +352-23-409998 / 00352-23-409998 (23-409998 / -23-409998) +352-23-409999 / 00352-23-409999 (23-409999 / -23-409999)