Area Code 2421 – Weicherdange

Geographic Overview and Administrative Jurisdiction

The +352 2421 numbering range is a geographic allocation within the Luxembourg national numbering plan, specifically designated for the locality of Weicherdange (Luxembourgish: Wäicherdang), a small village situated in the commune of Clervaux, in the northern part of the Grand Duchy. This area falls under the administrative jurisdiction of the Diekirch district and is part of the canton of Clervaux. The prefix serves the village and its immediate rural surroundings, including nearby hamlets and agricultural zones. As with all geographic codes in Luxembourg, the allocation is managed by the Institut Luxembourgeois de Régulation (ILR), the national regulatory authority for telecommunications.

Dialing Formats and Caller Instructions

Luxembourg employs a closed dialing plan, meaning that the full national significant number (NSN) must always be dialed, both for local and international calls. The NSN for numbers in the Weicherdange area is 8 digits in length, beginning with the prefix 2421. Therefore, a typical local number appears as 2421 XXXX (where XXXX is the subscriber's unique line number).

• Local callers (within Luxembourg): Dial the 8-digit NSN directly, e.g., 2421 1234. No trunk prefix (such as '0') is used in Luxembourg.
• International callers: Dial the international access prefix (00 or +), followed by the country code 352, and then the 8-digit NSN. For example, from the United States, you would dial 011 352 2421 1234; from most European countries, 00 352 2421 1234.

It is important to note that there are no area code overlays in Luxembourg; each geographic locality has a unique prefix, and the 8-digit format is uniform nationwide. The +352 2421 range is exclusively for fixed-line PSTN services, and it is not used for mobile or VoIP numbers.

Primary Cities and Coverage

Weicherdange is a small rural community, and the 2421 prefix primarily serves residential and small business customers in the village and its immediate vicinity. The closest major town is Clervaux, which is approximately 5 kilometers to the southeast. While Clervaux itself has its own geographic prefix (e.g., +352 92), the 2421 range covers the more sparsely populated areas to the north, near the border with Belgium. The region is known for its scenic Ardennes landscape and historical sites, including the nearby Clervaux Castle.

Technical Considerations

As part of the Luxembourg PSTN, numbers in the 2421 range are fully integrated into the national network and support standard telephony services, including ISDN and ADSL/VDSL where available. Callers from abroad should be aware that Luxembourg has no separate trunk prefix, so omitting the leading '0' is not an issue—there is none. However, when dialing from a mobile phone, it is recommended to use the +352 format to ensure proper international routing. For any service issues, subscribers should contact their local service provider, as the ILR ensures number portability across operators, meaning that a number with the 2421 prefix may be served by any licensed fixed-line operator.