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Do not answer these numbers in June

Calls from unknown numbers are a common occurrence. These are often spam calls with a less than serious background. atechbook lists the numbers that are currently causing the most trouble.

The companies and call centers behind the spam phone numbers call at every conceivable time of day and night. Usually even several times in quick succession. The reason: computers often take over the calls, frequently testing a number until they get a response at the other end. As a result, callers who accept a call from such an unknown number often hear a crackling and hissing noise on the line before they are connected to an employee – if at all.

The callers are often based in call centers and have only one mission: to request data from the person called and to lure them into flimsy sweepstakes or dubious contracts. In the worst case, such a call can be really expensive for the recipient. Advertising calls of this kind are however legally forbidden, if the called person did not permit them explicitly. Of course, the companies and call centers know this, too. They therefore regularly change the phone numbers they use to call in order to divert attention from themselves and avoid trouble. Sometimes they change the complete phone number, sometimes only the back digits.

For this reason, the list of spam numbers active in a given period is also constantly changing. It is a good thing that many sufferers report spam numbers to the Federal Network Agency. The agency has the option of imposing penalties or even blocking phone numbers. In any case, it creates a list of numbers that are currently particularly active.

Also interesting: How can I check whether my number is listed in the phone book?

These spam phone numbers are currently particularly active

The app operator “Clever Dialer” also takes a similar approach. Users can use the app to enter phone numbers that are bothering them and block them if they wish. Based on the data, Clever Dialer compiles a monthly list of spam phone numbers that are currently causing the most trouble.

Clever Dialer categorizes advertising calls, sweepstakes and cost traps accordingly. In the past few weeks, the following telephone numbers have been the most frequently complained about by callers in Germany:

Telephone number Area code Kind of the call
040254671238 +49 (Germany) Other
03016637169 +49 (Germany) Cost trap
06920436149 +49 (Germany) Other
01632489481 +49 (Germany) Raffle
069870012292 +49 (Germany) Cost trap
030439729067 +49 (Germany) Other
015217828228 +49 (Germany) Cost trap
030439729068 +49 (Germany) Other
061194583283 +49 (Germany) Others
041819474991 +49 (Germany) Others

Status: June 2022

The new number in 1st place this month is 040254671238, which scammers use to sign new energy contracts. In 2nd place, on the other hand, is an old acquaintance. At 03016637169 from Berlin, callers are lured with an alleged prize in an Aldi sweepstake.

The top spam number from previous months – 06920436149 – is also still in the top 3, although it is no longer at the top. It has topped the list of the most annoying spam numbers without interruption since February. Affected parties sometimes report more than a dozen calls a day from this number, with callers citing, among other things, advertising for fake contracts as the reason for the call.

Users should also beware of 030439729067. For this spam number, only the last digit has been changed, previously it was listed as 030439729066, 030439729064, 030439729063 or 030439729062. If you had already blocked the number, the small change in the final digit will not recognize it as such and you will have to enter it again.

Block spam calls

Fortunately, however, consumers can do something about phone spam. If they have staying power, they can simply ignore calls from unknown numbers. Even better, however, is to use the Internet to determine their origin. To do this, they enter a spam phone number that appears repeatedly on their phone into the search bar of their browser. This often reveals who is behind the calls.

If the number is questionable, it can be blocked easily and free of charge via most routers and smartphones. There is a small catch: unfortunately, blocking only works for a specific phone number. If companies change their spam numbers, they have to be added to the list of blocked lines.

Via landline

Many routers from Netgear, D-Link, the Fritzboxes from AVM and others offer the option of blocking phone numbers in the menu under the “Phone” or “Landline” tab. Calls from these connections are then no longer put through to the phone. The phone will simply stop ringing and the subscriber will no longer be bothered.

On Android smartphones

Android phone owners can also block spam phone numbers via their Google account. To do this, they open their smartphone’s phone app and click on the icon with the three dots in the upper right corner. Under “Spam” or “Block”, all unwanted numbers can now be entered here. If you like, you can even ignore all unknown numbers. Then the phone will only put through calls from contacts stored in the address book.

On the iPhone

Of course, blocking certain phone numbers also works on Apple’s iPhone. To do this, users go to their call log and select the corresponding call. Click on the button for more information, then a new page opens with the command “Block caller” displayed at the bottom.

Read more: How to mute unknown calls on iPhone.

If companies call from a blocked number, they can still leave a voicemail message, but the called party will not receive any notification about it. They will also not know that they have been blocked by the recipient.


  • Clever Dialer


  • Telephoning