Area Code 56 – Baden
The phone area code for Baden is 56 (international format +4156). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 56
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Baden
Geographic Coverage and Administrative Jurisdiction
The Swiss area code +41 56 is a geographic National Destination Code (NDC) allocated to the canton of Aargau, specifically serving the region around the city of Baden. This code covers a significant portion of the canton, including the districts of Baden, Bremgarten, and parts of Zurzach and Brugg. Major towns within this numbering area include Baden, Wettingen, Brugg, Mellingen, and Spreitenbach. The area is part of the greater Zurich metropolitan region, with many residents commuting to Zurich for work.
Dialing Formats and Usage
When dialing a number within the +41 56 area, both local and international callers must follow the standard Swiss dialing procedures. For calls originating from within Switzerland, the trunk prefix 0 is used before the area code. Thus, a local call to a fixed line in Baden would be dialed as 056 XXX XX XX. For international callers, the country code +41 is used, followed by the area code without the leading zero: +41 56 XXX XX XX. It is important to note that Swiss fixed-line numbers are always 9 digits long when dialed in international format, including the area code.
For example, a typical number in the Baden area might be +41 56 123 45 67. When calling from abroad, you would dial your international access code (e.g., 00 from most European countries, 011 from North America), then 41, then 56, and then the 7-digit subscriber number.
Numbering Plan and Overlay Considerations
Switzerland's numbering plan is closed, meaning that the area code is always required even for local calls. There is no overlay in this region; the +41 56 code is exclusively assigned to the Baden area. However, due to the high density of businesses and the proximity to Zurich, some numbers may be used by companies that have moved their operations but retained their original numbers, thanks to number portability. This means that a +41 56 number might not always physically terminate in the Baden area, but it remains a geographic indicator of the original allocation.
Caller Instructions
For local callers within the +41 56 area, dialing another local number requires the full national format: 056 followed by the 7-digit subscriber number. For callers from other parts of Switzerland, the same format applies. For international callers, always replace the leading zero with +41. It is also worth noting that calls to Swiss fixed-line numbers are typically included in flat-rate packages from Swiss telecom providers, but international rates may apply for callers from abroad.