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Protect your home from unwanted calls! Choose between the blacklist integration into your telephone system or Fritz!Box router or use the API key to get access to the full tellows database with easy implementation.

Business

Don't waste your valuable time with spam calls. Spam protection designed for the daily business! With the tellows API key you can integrate the blacklist into your PBX - suitable for all your needs (up to 30 connections).

Partner Products

Our partner products promise optimal protection for your telephone system. With the API key you get access to the tellows database and decide whether unreliable calls should be identified or blocked.



Telephone Number Blacklist (CSV)
Country-specific blacklist for your PBX


tellows scorelists csv
Get the tellows blacklists for untrustworthy phone numbers:

  • - download the current blacklist with phone numbers rated by the community
  • - import negatively rated phone numbers
  • - block or filter nuisance callers
  • - integration in any telecommunication system

Our Bestseller
The Fritz!Box Scorelists


tellows Fritzbox Liste Deutschland
The spam filter for your Fritz!Box
Saves time, money and nerves!

  • - Contains the tellows community phone numbers currently classified as untrustworthy
  • - Detection of unwanted callers during ringing
  • - Enable call blocking in order not to receive annoying calls in the first place
  • - Automatic database update via CardDAV server!
About tellows
tellows logo

tellows provides a forum for the rating of telephone numbers and uses the collective knowledge of the community to develop solutions against unwanted calls. tellows is represented in more than 50 countries and pursues the mission to combat telephone spam worldwide.

Visit tellows.co.uk
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tellows UG
Eschenring 6
04828 Bennewitz
Germany

© 2020 tellows UG