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API requests

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. Does this situation ring a bell? Unknown callers pester you all day long and you wonder if answering the call would be waste of your valueable time? Hence the question, who calls me? Unsolicited calls are a menace around the world, they operate in the twilight of the barely legal - if at all. tellows intents to provide a system to categorize the caller according to its nature and, thereby, warning you about possible dangers to you nerves and purse.

    Recently added comments

    1. Eble house 9 has been reported with number ‎07031535826 as Ping Call

      8/10/24, 11:03 AM via Nize

      1 Rating for 07031535826 (MTN Nigeria Communications Limite)
    2. Android reported Tony MTN with the number ‎08032032103 as Trustworthy number

      8/8/24, 10:21 PM via Android App

      1 Rating for 08032032103 (MTN Nigeria Communications Limited)
    3. The number ‎07087380007 has been assigned to unknown

      8/6/24, 2:27 PM via Nize

      1 Rating for 07087380007 (Airtel Nigeria )
    4. The number ‎09019899706 has been assigned to unknown

      7/15/24, 6:31 PM via Nize

      1 Rating for 09019899706 (Cellular Mobile)
    5. unknown has been reported with number ‎08069001927 as Harassment calls

      6/27/24, 2:02 PM via Nize

      1 Rating for 08069001927 (MTN Nigeria Communications Limited)

    Where does the information on telephone numbers come from?

    The categorization and rating of number is defined by you! The foundation of the rating system is the tellows score. It is based on a complex algorithm that combines your rating your comment in order to provide an indicator of the numbers trustworthiness or the risk involved. Only with your help can the tellows information on dubious numbers grow. Help us help you.

    Comments on the most frequently searched phone numbers

    1. iPhone reported number ‎023423234342 as Trustworthy number

      4/7/19, 2:04 PM via iPhone App

      5 Ratings for 023423234342 (Ibadan)
    2. Alex reported unknown with the number ‎06916561 as Harassment calls

      12/12/13, 10:21 AM

      I have heard this number calls on a land line and hangs up after i to 3 rings
      If you ring back the line is dead etc
      You then receive a call on a cell which if you ring back is charged for the call but the line is dead or blocked

      1 Rating for 06916561 (Zaria)
    3. Fed up reported Don't know with the number ‎08033002 as Harassment calls

      1/22/14, 7:10 PM

      Calls twice a day when I answer they hang up, I am in Italy ...possibly sky..

      1 Rating for 08033002 (MTN Nigeria Communications Limited)
    4. Kjetil reported Haugesund Dialog AS with the number ‎55614180 as Cost trap

      8/12/13, 5:31 PM

      Har gjort litt research og funnet ut hvem som står bak: Salget gjøres av Haugesund Dialog AS, Org nr 999 312 10. De er oppført med flere forskjellige nummer men daglig leder er Steffen Espelid og han er registrert med følgende nummer: 417 82 483, 991 61 963. Styreleder er Arild Steinsland men før skattelistene for 2012 slippes finner jeg ikke telefonnummeret hans.

      4 Ratings for 55614180 ()
    5. Anonymous reported Eventim with the number ‎04213666560 as Trustworthy number

      5/15/14, 5:32 PM

      Normal call from Eventim - ticket service company

      1 Rating for 04213666560 (Enugu)

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