Who is calling?

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 tellows.co.uk, 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. Tom reported Private with the number 01793532555 as trustworthy number

      IMSM Call regarding our ISO9001

      01793532555 (Swindon) - View details and comments - 13
    2. The number 01144470245 has been reported as trustworthy number

      Phone identified as potential spam call

      01144470245 (Sheffield) - View details and comments - 1
    3. L1HWR reported HYC with the number 01618505451 as Harassment calls

      Sick of these people ringing my phone do not know where they got their information from. Despite me blocking they come through on another line. Do not trust and when you tell them you don’t want to speak to them they get threatening.

      01618505451 (Manchester) - View details and comments - 49
    4. Anon reported Merit Recruitment with the number 01256471508 as Telemarketer

      Called and then hang up when answered. Regular unwanted caller.

      01256471508 (Basingstoke) - 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. squama reported Vitality health with the number 01202356636 as Aggressive advertising

      I ask some info and they wont stop calling me

      01202356636 (Bournemouth) - View details and comments - 18
    2. Mandamc reported number 01138198111 as Telemarketer

      Called me 5 times since yesterday. Hung up when I finally answered so now blocked.

      01138198111 (Leeds) - View details and comments - 12
    3. Claimed to be HRMC has been reported with number 03002003432 as Cost trap

      03002003432 don't answer don't press 1 they say it HRMC from the tax office if you don't continue you will be served a warrant for your tax probably get a big bill just for answering

      03002003432 () - View details and comments - 8
    4. Gigi reported HMRC with the number 01285706688 as Harassment calls

      Scam number pretending to be HMRC officer Claire Williams

      01285706688 (Cirencester) - View details and comments - 11

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