1. What information does Telspy offer?

Have you received a call from an unknown number? Are you looking for information about the most-searched phone numbers in your country? On the Telspy website you can find statistics about the current most active numbers alongside further details about the callers: Telspy aggregates data from a variety of sources and offers information about search traffic and the possible owners of these numbers. At a glance you can tell if the number is trustworthy or not, discover its owner and origin and find out how many ratings it has on tellows and Telspy. You can also rate the caller and thus help others to assess the number more accurately. Using the search statistics, you can find out how active the phone number has been in recent weeks. Additionally, Telspy offers further information about the number such as the location of the caller and the call type.

2. What types of caller are there?


If you were contacted by a number that you didn’t recognise, it could be about something important. However, it is certainly also possible that it is a telemarketer who would like to sell something to you. Not every call under this category is suspicious.

Advice: You should be wary, but you can pick up the call. Take note of whether the caller introduces themselves with their name and that of the company as well as their reason for calling. If it turns out to be a nuisance call you can simply end the conversation and tell the caller that you are not interested.

Trustworthy number

A trustworthy number could for example be an acquaintance or a business partner whose number you don’t have saved in your contacts. These types of call are often made by your own insurance provider or bank, wanting to arrange an appointment, or by a customer service department wanting to tell you about a new offer or a change in your contract. Trustworthy numbers, in short, will not annoy or pester you.

Advice: You can answer these calls without a second thought if you know the caller or are sure who you are speaking to. However, if you are unsure if the caller or the company is trustworthy, you should search for the number on Telspy to get further information or to warn other users about the caller.

Sweepstakes, lottery

Have you received a call from a sweepstake or competition company? Competitions are very popular and there are opportunities everywhere to take part. However, they are not always trustworthy and you should be especially wary of calls of this type. As a rule, winners of competitions are not contacted by telephone. During these kinds of calls, people are regularly told that they have recently taken part in an online competition. In order to receive their winnings, they must first subscribe to a magazine or pay a fee in advance of the payment. Through this method, scammers try to get hold of your bank details.

Advice: To claim your winnings, you never have to pay a fee. If you actually had taken part in a competition, ask for the details to be sent to you via email. If not, you should end the call.

Debt collection company

Many firms can come under this category, for example internet portals, email service companies and telecom providers. The caller informs you that you have outstanding costs on your contract which you must pay as soon as possible. In reality in most cases there is no contractual basis for the demands.

Advice: If you receive a call from a debt collection company, you should be told precisely what the debt is for. This way you should easily be able to recognise if it is a fraudulent call. Whether a real debt collection agency or a fraud, you do not have to put up with disruptive or abusive calls. In this case you can report the calls to the police or Action Fraud.

Aggressive advertising

Advertising calls can contain trustworthy offers. However, to receive such calls you should have previously agreed to them. Unsolicited marketing calls are unpleasant and a waste of time for most people and in many cases they are not permitted. If someone carries out marketing calls without any permission, then they are not allowed. Of course, it can happen that the caller introduces an interesting product, but you certainly shouldn’t make a purchase over the phone without informing yourself about the product or company beforehand.

Advice: If the marketing call is tempting, request for a written offer to be sent to you and do not hastily agree to any contract over the phone. Often, you are not aware of the terms and conditions or the company turns out to be different to what they claimed. It is also not easy to cancel such contracts. Online you can find many experience based reports about companies who advertise their products over the phone.


Have you been contacted by a polling company? Telephone surveys are a common way of carrying out market research and opinion polling. These calls are permitted even if they are not of interest to everyone. Usually the caller only asks a few short questions over the phone about topics such as politics and consumer habits.

Advice: If you no longer wish to be contacted by the polling agency, make sure that you express this on the phone. It has also often been reported that some supposed surveys about product habits turn into an agreement to a purchase. You should report these kinds of calls to the police.

Harassment calls

This term refers to many different types of annoying calls such as cold calls, aggressive calls and silent calls. In most cases the person or company calls you many times from the same phone number. An example of this is the so called "Tech Support Scam", where the caller claims to be from a computer manufacturing company such as Microsoft in order to find out your personal details. By repeatedly calling, the fraudster attempts to persuade you to believe their story and share your details.

Advice: If a telephone number annoys you constantly you can simply block the number. You can also use certain apps to block callers. In order to prevent this possible fraud, you should search for further information about the number before revealing any of your details.

Cost trap

This type of call is not trustworthy. A scammer will use dubious methods to try to steal money from you. The company could pretend to be from a competition company, or to be selling subscriptions or office products such as coffee machines and printers. The caller, however, does not give you the full details about the products, nor about the contract involved. Suddenly, you may subsequently receive bills for purchases that you had not made.

There are other types of call which come under this category, for example the grandchild trick, where the caller pretends to be a family member in order to persuade you to give them your cash. Other examples are calls where the caller pretends to be a police officer, lawyer or a notary. Such callers take advantage of vulnerabilities and inform those on the other end of the line that they must transfer money to pay for a court case or in order to receive prize money.

Advice: Never arrange a contract over the phone and don’t hand over any sensitive information! As a rule, the authorities will never contact you by telephone – they would always send you information by post. Ask lots of questions to determine the identity of the caller. If in doubt, end the call straight away and inform the relevant authorities.


The term telemarketer refers to calls originating from call centres, where the caller attempts to sell their products or carry out surveys. Although this type of call is not usually dangerous, some callers do not behave in a trustworthy manner. Such callers try to pressure you into buying their products and services.

Advice: If you receive an unexpected call from a telemarketer, you can always send the company a written request to opt-out. Alternatively, you can report the number to the police or Action Fraud if you find it particularly disruptive.

Ping and automated calls

Over the years, ping calls have been reported more and more regularly. Although we are warned about them by the media, these calls continue. Ping calls refer to a call that only rings once, meaning that there is no opportunity for you to realistically answer the phone. Such fraudsters hope that you will call the number back. In most cases these calls originate from abroad, meaning that you will incur high costs if you ring back. You may even be kept on hold in order for the scammer to generate the highest possible call costs.

Advice: Have you received a ping call? If it was an unrecognised number that originated from abroad it is advisable that you do not call back, especially if you do not know anyone who lives abroad. In this way you can avoid possible associated costs.

3. How can I protect myself?

In the age of GDPR, you would think that nuisance calls are no longer an issue. However, that would indeed be wishful thinking. Pre GDPR, it was much more acceptable for companies to pass your data onto other firms. It was legal for companies to share data via an ‘opt-out’ rather than an ‘opt-in’ method. However it is still common practise for many companies to access private data. Third parties continue to access our personal information in one way or another, and realistically this will never completely stop.

If you receive an unexpected call, be wary and ask yourself the following questions:

Who is calling and why?
Did the caller introduce themselves with their name and that of their company? Ask for this information! Should you have been expecting the call, you should still make sure that the caller immediately introduces themselves along with the reason for their call. The caller should give you this precise information before asking you any questions. If the caller asks for your personal or bank details you should end the call immediately without passing on this information. A caller who already does business with you would already have this information and would not ask for it again.

If the caller gives a reason for the caller that you do not find relevant or do not recognise (such as “you took part in X competition”), you should ask to receive further information in writing so that you can properly examine the details given. Do not agree to any contracts or confirm any personal details over the phone, even if it is correct. If it is an unsolicited marketing call you should ask the caller to remove you from their records.

Does the number call repeatedly?
If the number of calls is increasing and they are a nuisance, you should block the number. Using certain Android and iOS apps, you can set up Caller ID as well as call blocking for annoying numbers. Most routers and landline phones also offer this option. If you believe that the caller is a fraudster or is making illegal calls, you should also report the number to Action Fraud or the police.

4. Where can I find further information?

Share Your Knowledge
Participate in blogs and forums! A lot of people have the same problem and some may have already found a solution. Do not hesitate to ask for advice! On the tellows website you can find information and discussion about known fraudulent numbers and you can find this information during or after the call.

Report them
Although it may seem as if the authorities take no action, you should always report any suspected fraudster. Organisations such as Action Fraud in the UK offer simple ways of reporting crimes or attempted crimes (sometimes it’s as easy as online form). When reporting scammers is this easy, there is no excuse!

Use Online Phone Directories
Through this, you can identify the perpetrators. Maybe you missed the call? An online directory can help you figure out if it was legitimate or a scam. Our very own Telspy website can help you to identify your fraudster.

5. I gave away my details, what do I do now?

If you agreed to a contract
Whether intended or not, if, after the phone call, you receive a contract that you do not want, you can cancel it within the cancellation window. Most free offers eventually automatically become payable subscriptions. Pay attention to the small print and look online to find further information about the company as well as customer reviews and experiences. Make sure that you cancel within the cancellation window and send your deregistration request in writing.

If money is stolen after you shared your bank details
There are no guarantees in this case. If a third party steals money from your account, there is a small chance that you will get this money back. Primarily, it depends on if the money is still in the account it was sent to. Often, scammers transfer the money twice in quick succession, as once it has left the destination account, banks can do very little about it. Banks will go to reasonable effort to recover stolen money, but if you are partially at fault (by giving away your details), then they are under no obligation to help.

If you transferred money
In this case the chance of recovering your money is slim to none. Nowadays on banking apps and even in branch, banks are very careful to make sure you do not make the transfer if you are unsure why you are paying, what you are paying for, or if you are being threatened. This means that this transaction is your responsibility alone. Although it is true that banks would try to get your money back, it is very unlikely that you would see it again. A feature introduced for your protection is the option to ‘pay later’. If you are unsure or feel threatened, you could arrange this kind of payment and subsequently cancel it before the damage is done. Of course, though, the best option is not to make the payment at all. Read more about the bank transfer scam here.