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


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


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

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.

Member Area

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


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. Does your phone ring as relentlessly at dawn as it does at noon and dusk? The displayed number of the caller is unknown to you yet this very number calls several times a day? Are nuisance calls and telemarketers harassing you while you keep wondering Who is calling? Unsurprisingly there are thousands of others suffering the same agony of unsolicited calls. Therefore, has committed itself to provide a platform for all those whose nerves are grinded down by the continious ring of the their phones. Tellows aims at the distribution of knowledge and information on dangerous spam and scam numbers. Therewith, people will know who calls and know whether it is wise to answer the phone or leave it be. Furthermore, tellows offers two features to assist in the identification of the numbers: the tellows-score and maps marking the approximate location of the caller. Join our international community that is currently operating in over 45 countries download the tellows app today for your iPhone or Android to protect yourself against unwanted calls.

    Recently added comments

    1. The number ‎09550810941 has been assigned to unknown

      8/19/22 11:25 AM via Nize

      1 Rating for 09550810941 (Vodafone Essar Mobile Services Ltd.)
    2. Anuj reported ROBBERS with the number ‎912250044720 as Harassment calls

      8/18/22 4:10 PM

      Careful, do not deal

      2 Ratings for 912250044720 (Unitech Wireless (East) Pvt. Ltd.)
    3. ROBBERS has been reported with number ‎912250044720 as Harassment calls

      8/16/22 7:30 PM

      BEWARE, looters!

      2 Ratings for 912250044720 (Unitech Wireless (East) Pvt. Ltd.)
    4. iPhone reported unknown with the number ‎8505828546 as Trustworthy number

      8/16/22 10:32 AM via iPhone App


      1 Rating for 8505828546 (Idea Cellular Ltd.)
    5. iPhone reported unknown with the number ‎8760123357 as Telemarketer

      8/16/22 8:45 AM via iPhone App

      1 Rating for 8760123357 (Aircel Ltd.)

    Where does the information on telephone numbers come from?

    Every information on a number is the sum of all the experience the tellows users share via comments and by rating the number according to its danger. The combination of the rating and the categorisation in the comments feeds a complex algorithm that ultimately generates the tellows-score, hence, indicating the trustworthiness of each number. However, the vast bulk of information on dangerous spam and scam numbers requires you and your willingness to share you experience and knowledge in order to help people and warn them before they suffer the inconvinience of being spammed and scammed.

    Comments on the most frequently searched phone numbers

    1. Nothing to specify reported Frauds with the number ‎02250044720 as Harassment calls

      8/4/22 3:23 PM

      Harassment calls

      4 Ratings for 02250044720 (Mumbai)
    2. Anuj reported Fraud with the number ‎918068249254 as Harassment calls

      8/15/22 5:58 PM

      BEWARE, thieves

      4 Ratings for 918068249254 (BSNL)
    3. Hmhmh has been reported with number ‎07645072339 as Trustworthy number

      7/30/22 9:55 PM via Nize

      Rakesh Kumar

      3 Ratings for 07645072339 (Karanjia)
    4. The number ‎07428334722 has been assigned to 7428334722

      7/24/22 10:43 PM via Nize


      3 Ratings for 07428334722 (Vodafone Essar Mobile Services Ltd.)
    5. mendar divasi has been reported with number ‎09664126708 as Trustworthy number

      7/24/22 8:12 PM via Nize

      mender divas i

      3 Ratings for 09664126708 (Vodafone Essar Mobile Services Ltd.)

    Often searched companies

    Holiday Inn Express & Suites Bengaluru Omr, an IHG Hotel in Sy No. 49
    Fairfield by Marriott Bengaluru Outer Ring Road in Outer Ring Road
    Fairfield by Marriott Coimbatore in Airport Road 469/2b
    The Westin Sohna Resort & Spa in Vatika Com
    Meeting planning service
    ITC Kohenur, a Luxury Collection Hotel, Hyderabad in Plot No.5 survey no. 83/1
    Radisson Blu MBD Hotel Noida in Sector 18 l-2
    Scotch & Soda in Phoenix Market City Pune
    Clothing store
    Accenture in Ibc knowledge park towers a & b
    Business management consultant
    Radisson Kufri in 0km Milestone
    Anita massage & spa service noida in 02

    We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. Individual settings can be changed in the Privacy Policy. We do not support the Do Not Track browser option (CalOPPA). Further Information