Area Code 175 – Mobile Network
The phone area code for Mobile Network is 175 (international format +49175). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 175
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Overview of Germany’s +49 175 Mobile Prefix
The +49 175 prefix is a non-geographic mobile code assigned within Germany’s national numbering plan, as defined under ITU-T E.164. It is operated by Telefónica Germany (O2) and is used for mobile services, including voice, SMS, and data. Unlike geographic area codes, 175 does not correspond to a specific city or region; it is a national destination code for mobile communications. Subscribers with a 175 number can be located anywhere in Germany, and the number is not tied to a fixed address.
Number Structure and Dialing Formats
A German mobile number with the 175 prefix follows the structure: country code +49, followed by the national significant number (NSN) of 10 or 11 digits. For 175 numbers, the NSN typically consists of the prefix (175) plus a 7-digit subscriber number, resulting in a total of 10 digits after the country code (e.g., +49 175 1234567). When dialing domestically, callers use the trunk prefix 0, so the number is dialed as 0175 1234567. For international callers, the leading 0 is omitted, and the number is dialed as +49 175 1234567.
Mobile Network Operator and Porting
The 175 prefix is assigned to Telefónica Germany, which operates the O2 network. However, due to mobile number portability (MNP), a subscriber may have switched to another provider while retaining their 175 number. Therefore, the prefix does not guarantee the current network operator. When contacting a 175 number, the call is routed based on the number’s current home network, not the original allocation.
Usage and Services
175 numbers are used for standard mobile services, including voice calls, SMS, MMS, and mobile data. They are also used for machine-to-machine (M2M) communications in some cases. The numbers are not restricted to any geographic area, making them suitable for nationwide use. For businesses, 175 numbers can be used as customer contact points, but they are not toll-free; callers are charged according to their own mobile or fixed tariff, and the called party may incur charges for incoming calls depending on their plan.
Dialing Instructions for Local and Foreign Callers
For callers within Germany, dial the full national number: 0175 1234567. For callers from outside Germany, dial the international access code (e.g., 00 from most European countries, 011 from North America), then 49, then 175 1234567. Do not include the leading 0. Example: from the UK, dial 00 49 175 1234567; from the US, dial 011 49 175 1234567.
Regulatory and Technical Notes
The German Federal Network Agency (Bundesnetzagentur) oversees the allocation of numbering resources. The 175 prefix is part of the mobile services range from 015x to 017x. Since 2010, new mobile numbers may also be assigned with prefixes like 015, 016, and 017, but 175 remains a legacy prefix. There are no overlay plans for mobile prefixes; they are non-geographic and not subject to local area code changes.