Your phone is ringing and you don't know who is calling?

tellows provides information to identify trustworthy or potential risk calls - thanks to our worldwide community.

tellows - find out who called with the phone number reverse search & caller protection


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We categorise calls by type (debt collection, serious number, sweepstakes, etc.) and give the number in question a tellows score, which indicates whether a number is trustworthy or suspicious, helping you to decide whether or not to take the call.

Latest from our blog

    We've all had to deal with the same thing. Your phone is ringing and the display shows an unknown number you haven't seen before. So you're asking yourself whether to answer it or not!? Who is calling? You are certainly not the first one to ask these questions. For this reason, tellows developed a database which will help you with your decision about answering or ignoring the phone call. This will definitely save you time and energy. Yet, there is more to it. In addition to a risk rating, tellows provides an approximate location of the number calling. This helps you to find out the origin of the phone call. For additional information visit our Tellows Blog.

    Recently added comments

    1. unknown has been reported with number ‎+4915792456992 as Sweepstakes, lottery

      12/15/23, 1:46 PM

      "Ihr Gewinn"

      1 Rating for +4915792456992 (simquadrat)
    2. Investigator Marisa reported number ‎053640057 as unknown

      10/30/23, 12:35 PM

      1 Rating for 053640057 (Gorica/Koper/Postojna)
    3. unknown has been reported with number ‎+393883881872 as Debt collection company

      10/26/23, 5:01 PM

      1 Rating for +393883881872 (Wind (cellulare))
    4. Android reported number ‎041697554 as unknown

      10/12/23, 3:17 PM via Android App

      1 Rating for 041697554 (Mobitel)
    5. Android reported number ‎018281722 as unknown

      10/12/23, 3:15 PM via Android App

      1 Rating for 018281722 (Ljubljana)

    Where does the information on telephone numbers come from?

    The tellows community allows you to comment any telephone number. We analyze and classify the calls according to the type of call. The core of tellows is the so-called tellows score. A thought-out algorithm that classifies any number in relation to its risk level. This in turn makes it easier for you to decide whether it is safe to answer the call or not. In order to gather as much information as possible about all the numbers in question, we need your help! With the help of your comments about the numbers and your risk rating you certainly help us to enrich our phone number database.

    Comments on the most frequently searched phone numbers

    1. iPhone reported unknown with the number ‎0819793001 as Telemarketer

      5/8/17, 3:38 PM

      Telecom italia per propinare prodotti

      1 Rating for 0819793001 (VoIP)
    2. iPhone reported number ‎+4923423234342 as Aggressive advertising

      7/16/20, 10:58 AM via iPhone App


      1032 Ratings for +4923423234342 (Bochum)
    3. captain black reported number ‎+448439801205 as unknown

      6/18/15, 7:55 PM


      26 Ratings for +448439801205 (premium rate service)
    4. Milan reported unknown with the number ‎03427111983 as Trustworthy number

      9/15/16, 5:19 PM

      ottime promozini Vodafone

      1 Rating for 03427111983 (Kranj)
    5. Aleksander reported number ‎018888402 as CIC

      2/14/13, 3:47 PM

      Dont know who is calling

      2 Ratings for 018888402 ()

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