Area Code 44 – Zurich
The phone area code for Zurich is 44 (international format +4144). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 44
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Zurich
Geographic Coverage and Administrative Jurisdiction
The Swiss area code +41 44 is the National Destination Code (NDC) for the canton of Zurich, the economic and cultural heart of Switzerland. This geographic prefix serves the city of Zurich and its surrounding metropolitan area, including districts such as Winterthur, Uster, Dübendorf, and Horgen. The code is administered under the Swiss Federal Office of Communications (OFCOM) and is allocated to fixed-line PSTN and VoIP services registered within this region. As a geographic code, it is tied to the physical location of the subscriber's line, although VoIP providers may allow registration outside the area under certain conditions.
Dialing Formats and Caller Instructions
For local callers within Switzerland, the number is dialed in national format as 044 XXX XX XX, omitting the country code and replacing the leading '+41' with the trunk prefix '0'. For international callers, the full E.164 format is used: +41 44 XXX XX XX. When dialing from abroad, the leading '0' is dropped, and the plus sign or the international access code (e.g., 00 from most European countries) is used. For example, a Zurich-based business line might be dialed as +41 44 123 45 67 from outside Switzerland.
It is important to note that within Switzerland, all geographic numbers have a fixed length of nine digits after the trunk prefix, including the NDC. The area code 44 is not an overlay; it is the sole geographic code for the Zurich region, and there are no plans for an overlay code as the current numbering capacity is sufficient.
Technical Considerations and Number Portability
Subscribers in the Zurich region can retain their +41 44 numbers when switching between fixed-line operators, thanks to local number portability regulations. However, number portability does not change the geographic association of the code; a +41 44 number remains identifiable as a Zurich-based line even if the service is provided by a national operator. For VoIP services, the geographic code may be used for non-geographic purposes, but this is subject to OFCOM guidelines, and emergency services (112/117/118) rely on location data that may be affected by VoIP routing.
Callers should be aware that calls to +41 44 numbers are typically charged at domestic rates when dialed from within Switzerland, but international tariffs apply when dialing from abroad. For businesses, having a +41 44 number can enhance local trust and accessibility, as it signals a physical presence in the Zurich area.