Area Code 80 – Diekirch

Geographic Overview

The +352 80 prefix is a geographic area code assigned to the Diekirch region in Luxembourg. Diekirch, located in the north of the Grand Duchy, is the capital of the canton of Diekirch and serves as a major administrative and commercial center for the Éislek (Oesling) area. The code covers the city of Diekirch itself and several surrounding towns and communes, including Bettendorf, Erpeldange-sur-Sûre, and portions of the broader Diekirch District. As part of Luxembourg's national numbering plan, this prefix is used for fixed-line PSTN services, connecting businesses, public institutions, and residential subscribers within this defined geographic area.

Dialing Formats

When placing a call from within Luxembourg to a number using the +352 80 prefix, callers must dial the national significant number (NSN), which is 80 followed by the subscriber's local number. The total NSN length for Luxembourg is typically 9 digits, so a local number after the 80 prefix usually consists of 7 digits. For example, a local call would be dialed as 80 XX XX XX. No trunk prefix (such as '0') is used in Luxembourg; the international calling code +352 is always required for calls originating from outside the country. To call a Diekirch number from abroad, dial the international access prefix (e.g., 00 from most European countries, 011 from North America), followed by 352, then 80 and the subscriber's number: +352 80 XX XX XX.

Local and International Caller Instructions

For local callers within Luxembourg, simply dial the 9-digit NSN, omitting any leading zeros. For example, to reach a business in Diekirch, dial 80 XX XX XX. For international callers, ensure you use the correct exit code for your country, then dial +352 80 XX XX XX. Note that Luxembourg does not use area codes with a leading '0', so the number format is consistent for both domestic and international dialing.

Overlay and Numbering Considerations

Luxembourg's small geographic size and advanced telecommunications infrastructure mean that geographic prefixes like 80 are not subject to overlay codes or area code splits. The country's numbering plan is managed by the Institut Luxembourgeois de Régulation (ILR), which ensures that geographic numbers remain associated with specific regions for routing purposes. However, with the rise of VoIP and number portability, a number with the 80 prefix may not necessarily be physically located in Diekirch; it could be routed to a service provider anywhere in the country or even abroad. Despite this, the prefix retains its geographic designation for regulatory and statistical purposes.