Area Code 2428 – Niederzier
The phone area code for Niederzier is 2428 (international format +492428). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2428
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Niederzier
Geographic Overview
The German area code 02428 is a geographic National Destination Code (NDC) assigned to the town of Niederzier and its surrounding localities in the state of North Rhine-Westphalia (Nordrhein-Westfalen). Niederzier is situated in the Düren district (Kreis Düren), approximately 10 kilometers east of the city of Düren and about 20 kilometers northeast of Aachen. The code covers the main town of Niederzier as well as its constituent districts, including Oberzier, Hambach, Ellen, and Krauthausen. These areas are part of the Rhenish lignite mining region, though many former mining sites have been converted into recreational areas.
Dialing Formats
For callers within Germany, the national trunk prefix 0 is dialed before the area code. Thus, a local call to a Niederzier landline requires dialing 02428 followed by the subscriber's 5- to 7-digit local number. For example, a typical number might be 02428 123456. When calling from abroad, the international access code (00 or +) is used, followed by Germany's country code 49, then the area code without the leading zero. The same number would be dialed as +49 2428 123456.
Local vs. International Calls
Local calls within the Niederzier area code region are charged at local rates, while calls from other German regions are subject to national long-distance tariffs. For international callers, standard international rates apply. It is important to note that the 02428 area code is exclusively for fixed-line (PSTN/ISDN) services; mobile numbers in Germany are assigned separate non-geographic codes (e.g., 015x, 016x, 017x).
Overlay and Numbering
As of the latest ITU-T E.164 allocations, there is no overlay code for 02428; the area code is unique to Niederzier and does not require additional digit dialing. Subscriber numbers within this code typically range from 5 to 7 digits, allowing for a sufficient pool of numbers for the local population. The regulatory authority, Bundesnetzagentur, manages the allocation of these numbers to local carriers.
Practical Guidance
For businesses or individuals in Niederzier, it is essential to display numbers in international format (+49 2428 ...) on websites and global directories to facilitate calls from overseas. When dialing from a mobile phone within Germany, the same national format (02428 ...) is used. For any assistance with number portability or specific carrier routing, users should contact their service provider. Understanding these dialing conventions ensures seamless connectivity with this historic Rhineland community.