Area Code 157 – Mobile Network
The phone area code for Mobile Network is 157 (international format +49157). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 157
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Overview of German Mobile Prefix +49 157
The +49 157 prefix is a non-geographic mobile identifier within the German national numbering plan, administered by the Federal Network Agency (Bundesnetzagentur). Unlike geographic area codes tied to specific cities or regions, 157 numbers are allocated to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) across Germany. This means the prefix does not indicate the caller's physical location; rather, it signifies that the subscriber is using a mobile service, which may be accessed from anywhere in the country or even abroad via roaming.
Technical Format and Dialing
German mobile numbers, including those starting with 157, follow the E.164 international standard. The full international format is +49 157XXXXXXXXX, where '49' is the country calling code for Germany, '157' is the mobile prefix, and the remaining eight digits (XXXXXXXXX) constitute the subscriber number. In total, the national significant number (NSN) is 11 digits, including the leading '0' used for domestic dialing. For local calls within Germany, you would dial 0157XXXXXXXXX. For calls from abroad, you drop the leading '0' and dial +49 157XXXXXXXXX.
Service Providers and Number Portability
Historically, the 157 prefix was associated with specific operators, such as E-Plus and later its successor networks. However, due to mobile number portability (MNP), a 157 number may now be hosted on any German mobile network. This means that the prefix alone does not reliably indicate the current network operator. To determine the actual network, one would need to query a number portability database or use a service like Prefixyr.com for up-to-date carrier information.
Usage and Considerations
157 numbers are used for voice calls, SMS, and mobile data services. They are fully integrated into the German PSTN and are reachable from all national and international networks. When calling a 157 number from abroad, standard international tariffs apply, and the call is routed to the German mobile network. For businesses, 157 numbers can be used for customer contact, but they are not toll-free; the caller pays standard mobile rates. For SMS and MMS, the same numbering rules apply, and messages can be sent to 157 numbers from any compatible device.
Roaming and International Access
When a German mobile subscriber with a 157 number travels abroad, they can use their number for roaming services, subject to their operator's roaming agreements. International callers should note that dialing a 157 number from outside Germany requires the correct international prefix (e.g., '00' from most European countries, '011' from North America) followed by 49 and the number without the leading '0'. Always ensure you have the correct country and mobile codes to avoid misdialing.