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 – the free reverse search about phone numbers


Find details about reported phone numbers from over 7 million monthly users in 50 countries and participate by becoming a part of tellows community.

Member Area

Edit ratings, create your own blacklist and discover more features by becoming a tellows registered user for free.

News & Media

Get information about the current scam methods and how to prevent them in our blog, magazine and press and follow us on Twitter, Facebook and Instagram.


Download the tellows App for Android and iPhone to activate spam protection on the Go.


The landline solutions for your home and company are available in the tellows shop.


The tellows API offers a variety of solutions. Be our business partner and get access to our database.

Ratings from community
Registered users
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. 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. The number ‎020915352 has been assigned to markedsføring

      10/19/21 11:13 AM via Nize

      1 Rating for 020915352 (Mobiltelefon)
    2. The number ‎60190413 has been assigned to Kropsterapi v/Pernille Slots

      9/15/21 5:05 PM

      1 Rating for 60190413 ()
    3. Kkk reported unknown with the number ‎+447860015064 as SMS spam

      9/2/21 4:06 AM via iPhone App

      6 Ratings for +447860015064 (mobil phone number)
    4. has been reported with number ‎026775999 as Trustworthy number

      8/20/21 10:24 AM via Nize

      1 Rating for 026775999 (Mobiltelefon)
    5. Ford Vestergaard Odense has been reported with number ‎041104981 as Trustworthy number

      8/18/21 1:07 PM via Nize

      1 Rating for 041104981 (Mobiltelefon)

    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. The number ‎020915352 has been assigned to markedsføring

      10/19/21 11:13 AM via Nize

      1 Rating for 020915352 (Mobiltelefon)

    Often searched companies

    AudioNova Hørecenter in Adelgade 25 g
    Hearing aid store
    Antik-Ole in Grønstræde 7
    Antique store
    TNG Engineering ApS in Stationsvej 23
    Business management consultant
    P C Ibsens Sønners Legat in Callisensvej 2
    Røntgenklinikken Nørrevold ved Nørreport in Nørregade 40
    Malermester Finn Nielsen in Maglevænget 69
    Thisted Forsikring in Thyparken 16
    Insurance agency
    Advisor-Revision in Århusgade 88
    Grenens Maskinstation in Grenvejen 2
    Golden Hairstudio I/S in Borgergade 9
    Hair salon