License Key for the tellows Community Block List (Call Blocker)

The call blocker is not available for purchase anymore. The keys are still working for already purchased devices.

The tellows Call Blocker blocks unwanted callers - saving time, money and your sanity.

By the tellows Score (evaluation of the telephone numbers) everyone can configure and decide which calls they would like to see be blocked. For example, calls with a medium-negative (score of 7) can be left as the default, and therefore any caller with a rating of 7 or more will be blocked or alternatively you can adjust it to block callers with a very poor rating (a minimum of 8 or 9). The relevant phone numbers are checked and updated daily. Due to the large volume of activity in the tellows community, information regarding dubious numbers are being received frequently and no longer active telephone numbers are removed automatically.

In stock
€19.95
Incl. 19% VAT

Over 8 million monthly users worldwide

Over 150.000 ratings for phone numbers per month

Easy payment via PayPal or bank transfer

Solutions for private and commercial usage


After payment is received the blacklists are immediately available in the download area




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Call Blocker License Key
The tellows Call Blocker blocks unwanted callers - saving time, money and your sanity.

By the tellows Score (evaluation of the telephone numbers) everyone can configure and decide which calls they would like to see be blocked. For example, calls with a medium-negative (score of 7) can be left as the default, and therefore any caller with a rating of 7 or more will be blocked or you can adjust it to block callers with a very poor rating (a minimum of 8 or 9). The relevant phone numbers are checked and updated daily. Due to the large volume of activity in the tellows community, information regarding dubious numbers are being received frequently and no longer active telephone numbers are removed automatically. Over 1.3 million users per month make it possible for the largest community of telephone numbers to offer you the most successful spam filter directly to your phone. Due to the success of the Block Lists for the FritzBox and the all round positive feedback we received, we were led to the idea to innovate the Call Blocker with the tellows Block List. Thus, unwanted calls can now be blocked over almost all telephone connections.

How do I get the License Key?

After purchase you can download the access data to the License Key via your download area in the tellows shop. To do this, click on the link in the download area of ​​your user account. A new page opens with your access data. There you will find a 10-digit API-Key which is your License Key. You can insert and save this key within your callblocker webinterface.
Attention We recommend opening the download link to your access data via Mozilla Firefox or Internet Explorer. Google Chrome may not be able to read the file extension correctly. If this is the case, you can open the file by changing the file extension to ".html".

Advantages of the License Key

  • Most up-to-date and most extensive block list of phone numbers, including information about all rated phone numbers (i.e. Comments, phone number owner, call reason, keywords, search queries etc.)
  • The use of the tellows Score for evaluating the Block List entries (with the ability to block numbers with a particular tellows Score)
  • Ratings can be accessed via the apps (both iPhone and Android), the website and the Block List downloads.
Note: according to the 13th German Civil Code (BGB), tellows UG provides offers exclusively to final-end consumers. The Score Lists for commercial purposes or any other commercial aims is hereby prohibited. Should you wish to use the tellows Score Lists for commercial purposes, please contact us.
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Delivery timeimmediately from time of receipt
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