Area Code 50 – Bascharage/Petange/Rodange

Geographic Coverage and Administrative Jurisdiction

The +352 50 prefix is a geographic area code within the Luxembourg national numbering plan, serving the southwestern region of the Grand Duchy. Specifically, it covers the communes of Bascharage (now part of Käerjeng), Pétange, and Rodange, along with surrounding localities in the canton of Capellen and the canton of Esch-sur-Alzette. These areas form a contiguous urban and suburban zone near the Belgian border, characterized by residential communities and light industrial activity.

Administratively, the prefix falls under the jurisdiction of the Institut Luxembourgeois de Régulation (ILR), the national regulatory authority for telecommunications. The ILR allocates geographic numbering resources according to the ITU-T E.164 recommendation, ensuring that each national destination code (NDC) corresponds to a defined geographic area.

Dialing Formats and Number Structure

Within Luxembourg, calls to numbers beginning with 50 are dialed using the national format: the prefix is followed by a subscriber number of varying length. Historically, subscriber numbers in this region may consist of 4 to 6 digits, resulting in total national significant numbers (NSN) of 5 to 7 digits. For example, a local number might appear as 50 12 34 when dialed domestically.

For international callers, the correct format is +352 50 12 34 (or +352501234 without spaces). The leading '0' is not used in Luxembourg's international dialing; the country code +352 is followed directly by the national significant number. This format is essential for routing calls from abroad, as the international prefix (00 or +) and country code replace any domestic trunk prefix.

Caller Instructions

• Local callers (within Luxembourg): Dial the subscriber number directly, including the 50 prefix. For example, to reach a number in Bascharage, dial 50 12 34.
• International callers: Dial the international access code (e.g., 00 from most European countries, or + from mobile phones), followed by Luxembourg's country code 352, then the 50 prefix and subscriber number. For instance, from the United States, dial 011 352 50 12 34.

There are no known overlay codes in this area; the 50 prefix is exclusively assigned to the geographic region described. However, as Luxembourg has implemented number portability, a subscriber may retain their 50 number even if they relocate within the country, though this is less common for geographic numbers.

This prefix is part of the public switched telephone network (PSTN) and is also accessible via VoIP services that support geographic numbering. When calling from abroad, ensure that your service provider permits calls to Luxembourg and that you have the correct international dialing format to avoid routing errors.