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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

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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 rattles furiously as it's bombarded with nuisance call after nuisance call and you have no way of knowing who's calling. Will it be over enthused telemarketers or, perhaps even more annoying, a swift click and the dialing-tone drone? Should you take the call or ignore it? Who's on the other end?
    Rest assured that you're not alone. In a world where cold callers can sometimes seem to hold a global monopoly over phone lines, tellows aims to provide a solution. We function as a vast online database of phone number profiles, generated thanks to feedback and reviews from our online community. Providing an online platform where users can share their experiences of these kinds of calls and flag up numbers responsible for junk calls means that information on suspicious numbers becomes readily available, helping other members of the tellows community to anticipate potential risk calls. Join the international community that is currently operating in 47 countries with more than 200,000 users on a daily basis and download the new tellows app today for your iPhone or android. And whilst you are at it, take a look at our various other useful tools available for purchase in our tellows shop.
    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.
    We ontop feature the pinpoint location your call originated from and display it on a map, using the dialling code. Learn more about international dialling codes.
    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 in the UK or simply 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. A must read for all phone consumers.

    Recently added comments

    1. BAZ1999 reported number 01413679919 as Harassment calls

      I hung up and I blocked this number. Scammer! They called me and they said that I had an accident. ambulance chaser. accident scam. I'm thinking to call the police.

      01413679919 (Glasgow) - View details and comments - 1
    2. Felix reported Marbles with the number 01268297678 as Telemarketer

      They call from Marbles credit card. I had many calls from this number (01268297678) but I haven't got Marbles credit card, so I don't know if it is a call centre.

      01268297678 (Basildon) - View details and comments - 1
    3. Annie reported NHS Scotland with the number 08006783393 as trustworthy number

      NHS called to confirm I had post I had applied for. This was number that came up on my phone.

      08006783393 (free-call service) - View details and comments - 102
    4. The number +442038078726 has been reported as Telemarketer

      aggressively trying to sell day trading platform

      +442038078726 (London) - View details and comments - 3
    5. IAS Limited has been reported with number 01392409550 as trustworthy number

      01392409550 (Exeter) - View details and comments - 1

    Where does the information on telephone numbers come from?

    tellows provides a platform where those who receive frequent spam and scam phonecalls can share their knowledge on a particular caller by commenting on the phone number's profile. Profiles are generated automatically if a number is being searched for the first time. We categorise calls by type (debt collection, 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. This risk rating is generated by a complex algorithm that incorporates data such as user ratings and search statistics. Want to find out more about how the tellows score works?
    The bulk of the information on the site comes from user reviews and our database is constantly expanding and becoming more detailed thanks to information from you, our online community. By providing information on a number, you can help innumerable other people to anticipate and avoid a malicious call.

    Comments on the most frequently searched phone numbers

    1. Eve reported CPR Marketing with the number 01736757230 as trustworthy number

      CPR helped me locate missing investments by informing who to contact. I had an IFA come during my lunch break to kick start some research on my investments, returned 3 weeks later and thoroughly impressed with the whole process. Many thanks to Esme for her help.

      01736757230 (Penzance) - View details and comments - 48
    2. Z. reported number +442080894623 as Survey

      Called me with mentioning my email. They claim to have received my nr from myself, but that would never happen.
      Blocked it

      +442080894623 (London) - View details and comments - 18
    3. Lynd4B reported HMRC with the number 03002001223 as Harassment calls

      robotic voice with threat re fraud

      03002001223 () - View details and comments - 11
    4. RodP reported Pro-star Galaxy Services with the number 01733138313 as Telemarketer

      Calling with incorrect information about a work place accident. I have asked twice to be removed from their database. I am so sick of pointless insurance calls.

      01733138313 (Peterborough) - View details and comments - 15


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