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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. Anona reported Punjabi guy stalker with the number ‎+642040092999 as Harassment calls

      9/23/23, 8:53 PM

      This guy has been stalking X workers in Auckland. When he's unsuccessful he then escalates to making...

      1 Rating for +642040092999 (Sure (Guernsey) New Zealand Limited)
    2. The number ‎+393930983022 has been assigned to unknown

      9/23/23, 9:33 AM

      chiamano alle 11.30AM di sabato ma non si sa chi sia...

      1 Rating for +393930983022 (Tre (cellulare))
    3. The number ‎3142026426 has been assigned to unknown

      9/23/23, 4:35 PM


      1 Rating for 3142026426 (Missouri)
    4. The number ‎2602793001 has been assigned to unknown

      9/23/23, 1:55 PM


      1 Rating for 2602793001 (Indiana)

    Recently added comments

    1. The number ‎2292523288 has been assigned to unknown

      9/24/23, 3:12 AM via Nize

      1 Rating for 2292523288 (Georgia)
    2. Investigator ELJH reported Tachi with the number ‎+573227549291 as Trustworthy number

      9/24/23, 12:41 AM

      quiero mas información de este telefono

      1 Rating for +573227549291 (Claro)
    3. The number ‎6465943974 has been assigned to Annalee Smilkle

      9/23/23, 10:51 PM

      Something about work at home job offer that i didn't apply for

      2 Ratings for 6465943974 (New York)
    4. Anona reported Punjabi guy stalker with the number ‎+642040092999 as Harassment calls

      9/23/23, 8:53 PM

      This guy has been stalking X workers in Auckland. When he's unsuccessful he then escalates to making threats.

      Has been reported to police, this is just FYI

      1 Rating for +642040092999 (Sure (Guernsey) New Zealand Limited)
    5. My Dr. Kenneth Horwitz has been reported with number ‎7147728282 as Trustworthy number

      9/23/23, 5:14 PM via Nize

      1 Rating for 7147728282 (Anaheim)

    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 ‎+9794240044 as unknown

      9/11/23, 11:44 AM via iPhone App

      856 Ratings for +9794240044 (tellows)
    2. Fl Realtor reported Predator with the number ‎5629165402 as Harassment calls

      9/13/23, 6:05 PM

      What this guy is doing is sick!! We need to make reports to the police as well as report him to the state sexual predator of your state. They cannot ignore all the reports from everyone, he does the same thing over and over and he is so sure he won't get caught because we are not doing enough either to make sure he gets caught. I had the cops come To my house today and the nice police officer filled out the report and he said he will make sure it shows in their data, and the more people report him the better because different districts can start connecting the dots and hopefully find him.

      34 Ratings for 5629165402 (Artesia)
    3. Investigator (Persona anónima) reported Daviel with the number ‎+56939020225 as Trustworthy number

      8/30/23, 12:25 AM

      Sin texto

      3 Ratings for +56939020225 (Móvil)
    4. unknown has been reported with number ‎4017355515 as Aggressive advertising

      8/25/23, 1:12 PM via Nize

      3 Ratings for 4017355515 (Rhode Island)
    5. The number ‎4052949780 has been assigned to Recruitment fraud

      8/25/23, 1:08 PM via Nize

      4 Ratings for 4052949780 (Noble)

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