Area Code 2775 – Grevenmacher-sur-Moselle

Geographic Overview

The +352 2775 prefix is a geographic number range allocated within the Luxembourgish national numbering plan, specifically serving the Grevenmacher-sur-Moselle area. Grevenmacher is a commune and town in eastern Luxembourg, situated along the Moselle River, and is the capital of the Grevenmacher canton. This region is known for its wine production and picturesque riverside setting. The prefix is assigned to fixed-line services, typically provided by the national incumbent or alternative local operators, and is used for both residential and business numbers.

Dialing Formats

Luxembourg uses a closed dialing plan, meaning that the full national number must always be dialed, even for local calls. The national significant number (NSN) for geographic numbers is 9 digits long, beginning with the prefix '2775' followed by a 5-digit subscriber number. To call a number in Grevenmacher from within Luxembourg, you dial the full number: 2775 12345 (example). From abroad, you dial the international access code (00 or +), then the Luxembourg country code 352, followed by the full national number without any leading zero: +352 2775 12345.

Regulatory and Technical Aspects

Geographic numbers in Luxembourg are administered by the Institut Luxembourgeois de Régulation (ILR) in accordance with ITU-T E.164 recommendations. The prefix 2775 is part of the national numbering plan, and its use is not tied to a specific operator, as number portability allows subscribers to retain their number when switching providers. The service is delivered over the PSTN or VoIP, but the number remains geographically associated with the Grevenmacher exchange area.

Caller Instructions

For local callers, simply dial the 9-digit number. For international callers, always include the +352 country code and omit any trunk prefix. Note that Luxembourg does not use trunk prefixes like '0' for domestic calls. When calling from a mobile phone, the same rules apply. It is important to verify the subscriber number length, as some older numbers may have fewer digits, but the current standard is 9 digits for geographic numbers.

Overlay and Future Considerations

Currently, there is no overlay code for the Grevenmacher area; the 2775 prefix is unique to this region. However, with the ongoing migration to IP-based telephony, geographic significance may diminish over time, but the numbering plan remains in place to ensure routing and emergency services accuracy. Users should always store numbers in international format (+352 2775 ...) to avoid dialing errors when traveling.