Area Code 2406 – Herzogenrath
The phone area code for Herzogenrath is 2406 (international format +492406). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2406
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Herzogenrath
Geographic Overview
The German area code 02406 is a geographic National Destination Code (NDC) assigned to the city of Herzogenrath and its surrounding districts in the western part of North Rhine-Westphalia, directly bordering the Netherlands. This region is part of the Aachen urban area and includes the districts of Kohlscheid, Merkstein, and the town center of Herzogenrath itself. The code is administered under the German regulatory framework (Bundesnetzagentur) and is used for fixed-line PSTN and VoIP services.
Dialing Formats
When calling a Herzogenrath number from within Germany, you must use the national trunk prefix 0 followed by the area code and the subscriber number. For example, a local number might be dialed as 02406 123456. From outside Germany, callers should use the international access prefix (e.g., 00 or +), followed by the German country code 49, the area code without the leading zero, and the subscriber number: +49 2406 123456. The subscriber numbers typically have 5 to 7 digits, resulting in a total length of 10 to 12 digits including the country code, conforming to ITU-T E.164 standards.
Geographic Coverage and Overlays
The 02406 code serves a well-defined geographic area that is not overlaid by other area codes. However, due to its proximity to the Dutch border, cross-border calling is common. For calls from the Netherlands to Herzogenrath, dial 00 49 2406 followed by the subscriber number. For calls from Herzogenrath to Dutch numbers, dial the Dutch international prefix and country code. No special overlay considerations apply, but number portability allows subscribers to retain their numbers when switching providers, even if they move outside the geographic area, which can lead to non-local numbers being used locally.
Practical Guidance for Callers
For local callers within Herzogenrath, it is possible to dial the subscriber number without the area code in some cases, but it is always safer to include the full national format to avoid misdialing. Businesses and residents should ensure that their contact information lists the number in international format (+49 2406 ...) to facilitate calls from abroad. For VoIP users, the same dialing rules apply, but they should verify that their service provider supports geographic number routing. Emergency services (112) and other short codes are not affected by the area code.