Area Code 92 – Clervaux/Fischbach/Hosingen

Overview of Luxembourg Area Code 92

Area code 92 is a geographic National Destination Code (NDC) within the Luxembourgish public switched telephone network (PSTN), allocated under the national numbering plan administered by the Institut Luxembourgeois de Régulation (ILR). It serves the northern region of the Grand Duchy, specifically the communes of Clervaux, Fischbach, and Hosingen, along with their surrounding localities. This area is characterized by the Ardennes landscape and forms part of the administrative district of Diekirch.

Geographic Coverage and Dialing Formats

The code covers the town of Clervaux, known for its medieval castle and the Family of Man photographic exhibition, as well as the smaller communes of Fischbach and Hosingen. Subscribers within this region have seven-digit local numbers that begin with the digit '2' after the area code, resulting in a complete national significant number (NSN) of nine digits when the leading '0' is included for domestic calls.

Domestic dialing (within Luxembourg): To call a fixed-line number in the Clervaux area from another part of Luxembourg, you must dial the trunk prefix '0' followed by the area code and the subscriber number. For example, if the local number is 92 12 34 56, you would dial 0 92 12 34 56.

International dialing (from abroad): Callers from outside Luxembourg need to dial their international access code (e.g., '00' from most European countries, '011' from North America), followed by Luxembourg's country code +352, then the area code without the leading '0', and the subscriber number. For the same example, you would dial +352 92 12 34 56.

Overlay and Numbering Considerations

Luxembourg does not use overlay area codes; each geographic region has a unique NDC. The country's small size means that all geographic codes are two digits, and the total number of digits for a fixed-line number is always nine (including the leading '0' for domestic dialing). Since 2005, Luxembourg has implemented number portability, allowing subscribers to retain their numbers when changing operators, but geographic numbers remain associated with their original location for routing purposes.

For callers, it is essential to include the area code even when dialing from a mobile phone within Luxembourg, as the national numbering plan requires full NSN dialing for all calls. International callers should note that Luxembourg does not use a separate trunk prefix for international calls; the '+' notation is universally accepted.