# Nummernindex

> Understanding phone numbers: area codes and number ranges, spotting spam and one-ring calls, premium-rate costs, blocking numbers and reporting abuse.

- [German Area Codes: How to Read Any Landline Number](https://nummernindex.de/en/number-ranges/german-area-codes/): German area codes are two to five digits long and cover about 5,200 local network areas. Inside Germany you dial a 0 first, from abroad you replace that 0 with +49. Codes starting with 01 are mobile or special-rate ranges, not places. An area code shows where a number was assigned, not where the caller is right now.
- [German Mobile Number Prefixes: 015, 016, 017 Explained](https://nummernindex.de/en/number-ranges/german-mobile-prefixes/): German mobile numbers begin with 015, 016 or 017, written +49 15x, +49 16x or +49 17x from abroad. Each prefix block was originally assigned to one network: 0151 and 0171 to Telekom, 0152 and 0172 to Vodafone, 0176 and 0157 to Telefónica (O2). Because numbers can be ported, the prefix does not prove which network a number uses today.
- [German Premium-Rate Numbers: 0180, 0900, 0137 Costs](https://nummernindex.de/en/number-ranges/german-premium-rate-numbers/): German special-rate prices are fixed by the regulator and are the same from landlines and mobiles. 0180 numbers cost 3.9 to 14 cents a minute or 6 to 20 cents a call. 0137 costs 14 cents to €1 a call. On 0900 numbers the digit after 0900 sets the price, from €0.49 to €2.99 a minute. 0800 is free.
- [Germany Country Code +49: How to Dial and Write Numbers](https://nummernindex.de/en/number-ranges/germany-country-code-49/): Germany's country code is 49. Dial +49 from a mobile, 00 49 from most of Europe or 011 49 from the US and Canada, then the German number without its leading 0. So 030 1234567 in Berlin becomes +49 30 1234567. The common format +49 (0)30 is a hint for readers; never dial the bracketed 0.
- [One-Ring Scam in Germany: Why Calling Back Costs You](https://nummernindex.de/en/spam-and-fraud/one-ring-scam-germany/): A one-ring scam, also called Wangiri or ping call, is a call from an unknown, usually foreign number that rings once and hangs up so you call back. The callback goes to an expensive number, often with recorded messages that keep you on the line. Do not call back, block the number and report it with date, time and displayed number.
- [Caller ID Spoofing in Germany: Fake Numbers on Your Screen](https://nummernindex.de/en/spam-and-fraud/caller-id-spoofing-germany/): Caller ID spoofing means a caller makes your phone display a number that is not theirs. Since December 2022 German networks must drop calls showing 110, 112 or premium numbers and hide German numbers on calls arriving from abroad. Spoofing still happens, so never trust a displayed number alone. Hang up and call back on a number you looked up yourself.
- [Fake Police Call Scam in Germany: How to Spot It](https://nummernindex.de/en/spam-and-fraud/fake-police-call-scam/): In Germany, fraudsters call pretending to be police officers, Europol or a relative after an accident, and demand cash, gold or bank transfers. German police never ask for money on the phone and never collect or store valuables. Hang up immediately, call the person or authority on a number you already know, and dial 110 if anything feels wrong.
- [Missed Call From a German Number: Who Called and Is It Safe?](https://nummernindex.de/en/spam-and-fraud/missed-call-german-number/): Look at the digits after +49 first. 30, 40, 89 or similar two- to five-digit codes are landlines, 15x, 16x and 17x are mobiles, 180, 137 and 900 are special-rate services. Landline and mobile callbacks cost your normal rate, special numbers can be expensive. Germany has no public register of number owners, so without a voicemail you rarely learn who called.
- [Third-Party Billing Block in Germany: Drittanbietersperre](https://nummernindex.de/en/blocking-and-reporting/third-party-billing-block/): In Germany, a third-party billing block (Drittanbietersperre) stops other companies from charging subscriptions, app purchases or tickets to your mobile bill. Under section 61(2) of the Telecommunications Act your provider must set it up free of charge when you ask. Request it in the app, portal or by phone, and dispute unknown charges within eight weeks.
- [Block Spam Calls on iPhone, Android and German Landlines](https://nummernindex.de/en/blocking-and-reporting/block-spam-calls/): On iPhone, open Settings, Apps, Phone and set Call Screening to Ask Reason for Calling or Silence, then turn on Unknown Callers and Spam. In Phone by Google, tap a call in your history and choose Block/report spam. On a German landline, block numbers in your router or ask your provider. Filters for unknown callers beat blocking single numbers.
- [Report Scam Calls in Germany: The Bundesnetzagentur Guide](https://nummernindex.de/en/blocking-and-reporting/report-scam-calls-germany/): In Germany, scam and spam calls are reported to the Bundesnetzagentur through its online forms, one for each type of problem, such as one-ring calls, spoofed numbers or marketing calls without consent. Have the date, time, displayed number and a clear description ready. Crimes such as fraud or threats go to the police on 110 or through online police reporting.
- [Trace Anonymous Calls in Germany: The Fangschaltung](https://nummernindex.de/en/blocking-and-reporting/trace-anonymous-calls/): In Germany, you can have anonymous threatening or harassing calls traced with a Fangschaltung. You apply in writing to your own phone provider, which must then tell you which lines future calls come from, even with a hidden number. It only covers calls after your application and, according to the regulator, it is not free. Threats and stalking should also be reported to the police.

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