Area Code 991 – Deggendorf
The phone area code for Deggendorf is 991 (international format +49991). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 991
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Deggendorf
Overview of Area Code 0991
Area code 0991 is a geographic National Destination Code (NDC) within the German telephone numbering plan, assigned to the city of Deggendorf and its surrounding administrative district in the state of Bavaria. Deggendorf serves as the district capital (Kreisstadt) of the Landkreis Deggendorf and is located in the Danube valley, approximately 50 kilometers east of Regensburg. The code covers the urban core of Deggendorf as well as several adjacent municipalities and villages that fall within the local dialing area, including but not limited to Metten, Grafling, and Plattling (though Plattling has its own code, 09931, for some areas).
Dialing Formats and Usage
When dialing within Germany, callers must use the national trunk prefix 0 before the area code. Thus, a local number in Deggendorf is dialed as 0991 followed by the subscriber's 5- to 7-digit local number, resulting in a total national significant number (NSN) length of 8 to 10 digits (excluding the leading trunk prefix). For example, a typical local number might be 0991 123456.
For international callers, the German country code +49 replaces the leading zero. Therefore, the same number would be dialed as +49 991 123456. It is important to note that the area code is not separated by a space when dialing; the formatting shown here is for readability only.
Geographic Coverage and Administrative Jurisdiction
The 0991 area code is administered by the German Federal Network Agency (Bundesnetzagentur) and is classified as a geographic code, meaning it is tied to a specific physical location. The coverage area includes the city of Deggendorf itself, along with the municipalities of Metten, Offenberg, and parts of the surrounding rural district. The region is part of the administrative district of Lower Bavaria (Niederbayern) and is known for its proximity to the Bavarian Forest and the Danube River.
Overlay and Numbering Considerations
As of the current numbering plan, there is no overlay code for 0991; the area code is unique to this region. However, number portability allows subscribers to retain their 0991 numbers when moving to other service providers, including VoIP or mobile operators, which may result in a call to a 0991 number being routed to a location outside the geographic area. Conversely, a number with a different area code may be ported into the Deggendorf region, but the original code remains unchanged.
Caller Instructions
Local callers within the 0991 area can often dial just the local subscriber number without the area code, depending on their specific telephone exchange configuration. However, for clarity and to avoid misdialing, it is recommended to always use the full national format. For callers from other German regions, dial 0991 followed by the subscriber number. For callers from abroad, dial +49 991 followed by the subscriber number, omitting the leading zero.
Emergency services (112) and other short codes remain accessible regardless of the area code. For any number-related inquiries, the Federal Network Agency provides official documentation.