Area Code 246 – Luxembourg
The phone area code for Luxembourg is 246 (international format +352246). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Luxembourg
Geographic Significance and Coverage
The +352 246 prefix is a geographic National Destination Code (NDC) assigned to the Luxembourg City metropolitan area, the capital and largest urban center of the Grand Duchy of Luxembourg. This code covers the central administrative districts, including the historic old town, the Kirchberg plateau (home to EU institutions), the Gare district, and surrounding residential neighborhoods. As a geographic allocation, the prefix identifies fixed-line services physically connected to the local PSTN infrastructure within this specific jurisdiction.
Dialing Formats and Procedures
Luxembourg employs a closed dialing plan, meaning the full national significant number (NSN) is always used domestically, even for local calls. The NSN for numbers under this prefix is 9 digits long, beginning with '246' followed by a 6-digit subscriber number (e.g., 246 123 456).
- Domestic calls (within Luxembourg): Dial the full NSN: 246 123 456. No trunk prefix '0' is used.
- International calls from abroad: Dial the international access code (00 or +), then the country code 352, followed by the NSN: +352 246 123 456.
- Local calls: Even if calling from another +352 246 number, you must still dial all 9 digits.
Regulatory and Technical Considerations
The Institut Luxembourgeois de Régulation (ILR) oversees numbering assignments. Geographic numbers like +352 246 are primarily used for fixed-line services, but they may also be used by VoIP providers that register a physical presence in the area. Number portability allows subscribers to retain their +352 246 number when switching providers, but geographic portability is restricted: the number must remain associated with the original geographic region. Callers should note that while most numbers are landlines, some may be routed over IP networks, but this does not affect dialing procedures.
Practical Guidance for Callers
For international callers, always replace the leading '0' (if any) with the country code. Since Luxembourg uses a closed plan, there is no local area code to drop when calling internationally. For example, a Luxembourg City business number might appear as +352 246 789 012. When dialing from a mobile phone, simply use the '+' sign followed by the full number. Ensure you have the correct number of digits; omitting a digit will result in a failed call.