Area Code 58 – Differdange
The phone area code for Differdange is 58 (international format +35258). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Differdange
Geographic Overview
The +352 58 numbering range is a geographic allocation within the Luxembourg national numbering plan, specifically serving the commune of Differdange and its surrounding localities in the canton of Esch-sur-Alzette, in the southwest of the Grand Duchy. Differdange is the third-largest city in Luxembourg and a key industrial and commercial hub, historically centered on steel production. The prefix 58 is used for fixed-line PSTN and VoIP services provided by licensed operators within this designated area.
Dialing Formats and Usage
Within Luxembourg, calls to a +352 58 number are placed using the national format: 58 XX XX XX (eight digits in total, including the leading 58). No trunk prefix (such as '0') is used in Luxembourg; callers simply dial the eight-digit subscriber number. Internationally, callers must use the country code and drop any leading zeros (which do not exist in the national format). Thus, a typical international dialing sequence would be: +352 58 XX XX XX.
For example, a local call to a business in Differdange might be dialed as 58 12 34 56, while a caller from abroad would dial +352 58 12 34 56. The same number is used for both local and international calls; there is no separate local dialing format.
Regulatory and Technical Notes
Luxembourg's numbering plan is administered by the Institut Luxembourgeois de Régulation (ILR). Geographic numbers are portable among fixed-line operators, meaning a subscriber may retain their 58 number when switching service providers. However, the number remains associated with the geographic area of Differdange for routing and emergency services purposes. VoIP services may also be assigned numbers from this range, but the geographic association is retained for regulatory compliance.
Callers from outside Luxembourg should be aware that international dialing charges apply, and the exact cost depends on their home country's tariff. Within Luxembourg, calls to 58 numbers are typically included in national calling plans or charged at standard fixed-line rates.
For emergency services, the European emergency number 112 is used, and calls are routed based on the caller's location, not the number's geographic prefix.