Area Code +352-23-(640000...649999) 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 : 640000 Subscriber Number To : 649999 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-(630000...639999) next › : +352-23-(650000...659999) Dialling Instructions For trunk calls: - 23 640000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 352 23 640000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 640000 ~ 649999 (Count: 10,000) Example: +352-23-640000 / 00352-23-640000 (23-640000 / -23-640000) +352-23-640001 / 00352-23-640001 (23-640001 / -23-640001) +352-23-640002 / 00352-23-640002 (23-640002 / -23-640002) +352-23-640003 / 00352-23-640003 (23-640003 / -23-640003) +352-23-640004 / 00352-23-640004 (23-640004 / -23-640004) ...+352-23-xxxxxx / 00352-23-xxxxxx (23-xxxxxx / -23-xxxxxx) ...+352-23-649995 / 00352-23-649995 (23-649995 / -23-649995) +352-23-649996 / 00352-23-649996 (23-649996 / -23-649996) +352-23-649997 / 00352-23-649997 (23-649997 / -23-649997) +352-23-649998 / 00352-23-649998 (23-649998 / -23-649998) +352-23-649999 / 00352-23-649999 (23-649999 / -23-649999)