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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 rings 24/7 and shows no sign of stopping, but if ever you should pick up, all you hear is the incessant yabbering of a telemarketer or nothing at all. You're infuriated by the anonymous calls jamming your phone line. Is there some way of finding out who is on the other end? Do you pick up or leave it ringing? Who is calling?
    Sound familiar? There are thousands of people asking the same question every day. In response to this universal problem, tellows functions as an online database of telephone numbers associated with spam and scam activity reported by you, our users. By sharing your experiences with unknown numbers, you'll be providing vital warning information to other users unsure about whether or not to trust a certain caller. The more information is shared, the bigger the database grows and thus the chance of finding out who's at the end of that anonymous call becomes higher and higher. Thanks to the tellows app you can identify unknown callers on your iPhone and Android! Whilst you are at it, take a look at our various other useful tools in our tellows shop today.
    Here at, not only can we provide up-to-date information on regional nuisance-call trends and currently active numbers with the heatmap, we also pinpoint the origin of your call and display it on a map by identifying the prefix.
    Used by over 200,000 people daily, tellows provides its services to people in over 47 countries, but is geared specifically towards those residing in North America. Want to hear more? We have some light reading material that might be of interest to you. Check out our tellows blog for news on the latest scams, tellows products and updates in telecoms regulations that affect you or grab a copy of our free tellows magazine,which came together after our many years of experience on the subject of telephone terror and scams. This not only includes important background information about phone fraud but the methodology behind it.

    New unwanted phone numbers

    On tellows, thousands of phone numbers are reported by the community every day. Here you can find phone numbers that were reported for the first time and were classified as unwanted.
    1. mioara miok has been reported with number ‎2484211846 as Cost trap

      3/22/23, 11:49 AM

      Fake Amazon Purchase Warning. I've got calls like that before. They usually state some Apple product...

      2 Ratings for 2484211846 (Marysville)
    2. fake service Canada is scammer has been reported with number ‎4163851280 as Harassment calls

      3/22/23, 1:00 PM

      pretending that social insurance number has been suspended no such thing,pretending that social insu...

      2 Ratings for 4163851280 (Toronto)
    3. Delcie reported T-Mobile Voicemail Services with the number ‎+8618056377243 as Harassment calls

      3/22/23, 5:45 PM

      I am continually receiving calls from 18056377243 and similar numbers....

      1 Rating for +8618056377243 (中国电信 China Telecom)
    4. national trooper association has been reported with number ‎8037973122 as Telemarketer

      3/22/23, 4:44 PM

      ? could be real, but 2 - 3 times a week is just too much!...

      1 Rating for 8037973122 (South Carolina)
    5. no sound...robo call has been reported with number ‎9144917971 as Harassment calls

      3/22/23, 7:00 PM


      1 Rating for 9144917971 (Poughkeepsie)
    6. Pierina reported number ‎+14372925225 as unknown

      3/22/23, 7:00 PM

      They call but they say nothing...

      1 Rating for +14372925225 (SMS Service)
    7. Rafael Pérez has been reported with number ‎12407130431 as Harassment calls

      3/22/23, 2:13 PM


      1 Rating for 12407130431 ()
    8. The number ‎9728331393 has been assigned to Bosco Auto Group

      3/22/23, 6:33 PM


      1 Rating for 9728331393 (Dallas)
    9. unknown has been reported with number ‎+584120986641 as Aggressive advertising

      3/22/23, 11:31 AM


      1 Rating for +584120986641 (Digitel)
    10. unknown has been reported with number ‎3092409813 as Telemarketer

      3/22/23, 9:09 PM


      1 Rating for 3092409813 (Illinois)

    Recently added comments

    1. Kile N reported CRA (Possibly Spoofed) with the number ‎18006615991 as Debt collection company

      3/20/23, 10:46 AM

      Called me a few minutes ago. No idea who this caller is. No idea.

      3 Ratings for 18006615991 (Toll-Free USA-Canada)
    2. Delcie reported T-Mobile Voicemail Services with the number ‎+8618056377243 as Harassment calls

      3/22/23, 5:45 PM via Android App

      I am continually receiving calls from 18056377243 and similar numbers.

      1 Rating for +8618056377243 (中国电信 China Telecom)
    3. iPhone reported unknown with the number ‎2311040443 as Trustworthy number

      3/22/23, 10:34 PM via iPhone App

      1 Rating for 2311040443 (Michigan)
    4. unknown has been reported with number ‎3092409813 as Telemarketer

      3/22/23, 9:09 PM

      1 Rating for 3092409813 (Illinois)
    5. Android reported number ‎8664293671 as unknown

      3/22/23, 8:40 PM via Android App

      2 Ratings for 8664293671 (Toll-free telephone number)

    Where does the information on telephone numbers come from?

    Huge amounts of data are entered into tellows sites worldwide each day - further comments on existing numbers as well as entirely new number profiles from first-time searches - all thanks to our users. User contributions are key to tellows' central function: the tellows score. Each time information on a number is given, the information is put through a complex algorithm to generate a trustworthiness rating, on a scale of 1-9. The respective score is clearly displayed at the top of the profile page for each number, making identifying an unknown caller possible in a matter of seconds and saving you not only time, but the frustration of dealing with annoying sales calls.

    Comments on the most frequently searched phone numbers

    1. iPhone reported number ‎+9794240034 as unknown

      3/20/23, 4:48 PM via iPhone App

      1328 Ratings for +9794240034 (tellows)
    2. The number ‎+17655964502 has been assigned to desconocido

      3/16/23, 7:08 AM

      Robo WhatsApp Delincuentes

      6 Ratings for +17655964502 (Indiana)
    3. The number ‎8322106593 has been assigned to unknown

      3/11/23, 3:41 PM via Spam Block

      49 Ratings for 8322106593 (Texas)
    4. Home warranty SCAM has been reported with number ‎8134500819 as Cost trap

      3/7/23, 2:52 PM

      Home warranty robocall cost trap SCAM

      5 Ratings for 8134500819 (Florida)
    5. Microsoft Support SCAMMER has been reported with number ‎8669270237 as Cost trap

      2/27/23, 10:39 PM

      Microsoft Support SCAM sent from [email protected] We have located and reviewed your account and found out Something is going wrong. We need to talk over the phone. Please call us at +1 (866) 927-0237 for immediate assistance. Microsoft Support Team William Smith Toll-Free: +1 (866) 927-0237

      4 Ratings for 8669270237 (Toll-free telephone number)

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