Area Code 5572 – Dornbirn
The phone area code for Dornbirn is 5572 (international format +435572). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 5572
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Dornbirn
Geographic Overview
Austrian area code +43 5572 is the National Destination Code (NDC) for the city of Dornbirn, located in the westernmost state of Vorarlberg. Dornbirn is one of Austria's principal economic hubs in the Rhine Valley, bordering Switzerland and Germany. The code serves the Dornbirn political district, which includes the city itself and surrounding municipalities such as Hohenems, Lustenau, and smaller villages. As a geographic code, it is allocated to fixed-line PSTN and VoIP services, with numbers typically used by businesses, public institutions, and households within this defined area.
Dialing Formats
When dialing a Dornbirn number from within Austria, you must use the trunk prefix 0 followed by the area code and the subscriber's local number. For example, a local Dornbirn number might be 05572 12345. From outside Austria, callers should omit the leading 0 and use the international prefix, resulting in +43 5572 12345. The subscriber number length after the area code typically ranges from 4 to 7 digits, depending on the service provider and the specific allocation.
Caller Instructions
Local callers within the Dornbirn area can often dial the subscriber number without the area code, but for clarity and to avoid misdials, it is recommended to use the full national format. International callers should replace the leading zero with the +43 country code, and if dialing from a mobile phone, they can simply use the + symbol. For calls from countries with different emergency or directory services, always ensure you are using the correct international exit code (e.g., 00 from most European countries, 011 from North America).
Overlay and Numbering Considerations
As of the latest ITU-T E.164 and Austrian Regulatory Authority (RTR) updates, there is no overlay code for Dornbirn; the 05572 code is exclusive to the geographic region. However, number portability allows subscribers to retain their Dornbirn numbers even if they move to a different service provider, including VoIP operators. This means that a number with the 05572 prefix may not always be physically located in Dornbirn, but it remains associated with the geographic area for routing and administrative purposes. Businesses using this code should ensure their contact details clearly state the local dialing format to avoid confusion for customers calling from abroad.