Area Code 2056 – Heiligenhaus
The phone area code for Heiligenhaus is 2056 (international format +492056). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2056
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Heiligenhaus
Geographic Overview
The +49 2056 area code is a geographic National Destination Code (NDC) assigned to the city of Heiligenhaus, located in the state of North Rhine-Westphalia (Nordrhein-Westfalen) in western Germany. Heiligenhaus is part of the Mettmann district (Kreis Mettmann) and lies within the densely populated Rhine-Ruhr metropolitan region. The code covers the city area itself and its immediate administrative boundaries, including the districts of Hetterscheidt, Isenbügel, and the central town area. Adjacent cities such as Velbert (02051), Ratingen (02102), and Essen (0201) have their own distinct codes.
Dialing Formats
When calling a Heiligenhaus landline 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 123456 would be dialed as 02056 123456. From abroad, the international access code (00 or +) is used, followed by Germany's country code 49, the area code without the leading zero, and the subscriber number: +49 2056 123456. The subscriber numbers in this area typically have between 4 and 7 digits, making the total length of the national significant number (NSN) between 9 and 10 digits, consistent with Germany's numbering plan.
Caller Instructions
For local callers within the 02056 area, it is still necessary to dial the full area code even for calls to the same city, as Germany does not use local dialing without the area code for landline-to-landline calls. Mobile callers, regardless of their location, must always include the area code. For international callers, the plus sign (+) is recommended for mobile phones, while landline users should use the International Access Code (IAC) of their country (e.g., 011 from North America, 00 from most European countries).
Numbering and Overlays
There are no overlay codes in this region; 02056 is the sole geographic code for Heiligenhaus. However, number portability allows subscribers to retain their 02056 numbers when moving to other providers, including VoIP and mobile services. This means that a call to a 02056 number may be routed to a non-geographic network, but the caller is not affected. The Federal Network Agency (Bundesnetzagentur) administers the allocation of these codes, ensuring that the geographic assignment does not necessarily reflect the physical location of the called device.