In 2025, spam phone calls continue to be a significant nuisance for mobile users across the UK. With the rise of fraudulent schemes, unsolicited sales calls, and scam attempts, it has become crucial for consumers to remain vigilant and avoid falling victim to these scams. Among the many numbers that have been reported as spam, a few stand out as being particularly persistent. This article highlights the top reported spam phone numbers in the UK for 2025, providing insight into the nature of these calls and the risks associated with them.
Overview of Spam Calls in the UK
Spam calls refer to unsolicited phone calls made for various purposes, including fraudulent schemes, marketing campaigns, or even attempts to steal personal information. These calls are typically made by automated systems, known as robocalls, or by live agents working on behalf of organizations or individuals with dubious intentions. In recent years, there has been a significant increase in the volume of these calls, with scammers using increasingly sophisticated methods to make them appear legitimate.
The UK government, alongside regulatory bodies like the Information Commissioner’s Office (ICO), has been working to reduce the impact of spam calls. However, despite efforts to curb the problem, many numbers continue to make their way through to consumers, causing distress and financial loss. Here, we will take a look at some of the most reported spam numbers in the UK for 2025.
The Most Reported Spam Numbers
1. 1204935816
The number 1204935816 has been frequently flagged by UK consumers due to its association with fraudulent activity. The callers often pose as representatives from government departments, claiming that there are issues with tax records or outstanding fines that require immediate attention. These types of calls typically aim to scare the recipient into providing personal details or making payments over the phone.
2. 1438382070
Number 1438382070 has been reported in connection with aggressive telemarketing tactics. Callers from this number often claim to be offering insurance, loans, or other financial services at discounted rates. However, these deals are often too good to be true, and in many cases, consumers are pressured into providing sensitive information that can later be used for identity theft or other malicious purposes.
3. 1887224460
The number 1887224460 is another frequent offender in the UK’s spam call list. Callers from this number are known to impersonate well-known companies, offering fake technical support for various devices like smartphones, computers, and home appliances. These calls often begin with a prerecorded message, followed by an agent attempting to convince the recipient that their device is infected with a virus or malware, leading them to pay for unnecessary services.
4. 2843729360
2843729360 is commonly reported as part of scam campaigns aimed at consumers who have recently applied for loans or credit. Callers from this number claim to be representatives from the applicant’s bank or a financial institution and attempt to gain access to banking details. These calls are highly deceptive and often lead to significant financial loss if the recipient does not recognize the warning signs of a scam.
5. 7520619034
The number 7520619034 is known for making unsolicited calls under the guise of offering promotions or discounts on household items and services. Often, these calls target older individuals who may be more vulnerable to misleading offers. Scammers may ask for payment details to “secure” a prize or discount, which often turns out to be a scam.
6. 1615241776
1615241776 has been flagged for being part of a phishing scheme. Callers from this number often claim to be from well-known retailers, offering refunds or special deals. They request personal information such as credit card details or bank account numbers in exchange for the “refund.” These types of calls are designed to trick individuals into giving up their financial information.
7. 1743817282
1743817282 is often associated with fraudulent debt collection efforts. Callers from this number claim that the recipient owes money to various companies, and they may threaten legal action or other punitive measures if payment is not made immediately. The goal is to pressure the recipient into making a payment or providing sensitive information, such as bank account numbers.
8. 1942901396
1942901396 is often reported as part of a spam call campaign targeting consumers with fake lottery or prize winnings. Callers claim that the recipient has won a large sum of money but must first pay fees or taxes before receiving the “prize.” These scams are designed to exploit individuals’ desire to win money, and victims may be asked to wire money or provide bank account details.
9. 3301240404
3301240404 has been reported as a number involved in fraudulent debt relief schemes. The callers typically claim that they can help reduce or eliminate the recipient’s debts, often asking for upfront fees or personal financial information in the process. These scams are particularly harmful as they prey on individuals already facing financial difficulties.
10. 3316303321
Lastly, 3316303321 is another common spam number in the UK. It is associated with fraudulent loan or credit card services, where callers promise low-interest rates or guaranteed approval. However, the callers often require sensitive personal details or upfront payments before proceeding with any service, which turns out to be a scam.
Table: Top Reported Spam Numbers in UK (2025)
| Phone Number | Reported Scam Type | Common Tactics |
| 1204935816 | Tax fraud, fines, government scams | Claims of tax issues, demands for immediate payment |
| 1438382070 | Telemarketing, insurance offers | Offers for fake insurance or loans, pressuring for personal info |
| 1887224460 | Technical support scams | Fake technical support for devices, requests for payment details |
| 2843729360 | Loan and credit fraud | Pretends to be a bank or financial institution, asks for banking info |
| 7520619034 | Promotional offers, household item scams | Fake discounts on products, asks for payment info or credit card |
| 1615241776 | Phishing, retailer scams | Fake offers or refunds, requests for credit card details |
| 1743817282 | Debt collection fraud | Claims of outstanding debt, threats of legal action |
| 1942901396 | Lottery or prize scams | Claims of prize winnings, demands for fees to claim prize |
| 3301240404 | Debt relief scams | Offers to reduce or eliminate debt, asks for personal financial info |
| 3316303321 | Loan and credit card scams | Fake loan offers, asks for upfront payments or personal details |
The Risks of Spam Calls
Spam calls are more than just an inconvenience. They pose significant risks to individuals and their financial security. Here are a few key reasons why it is essential to remain cautious when dealing with unknown numbers:
- Financial Loss: Many spam calls are designed to trick individuals into making payments or providing sensitive financial details. Once scammers have access to this information, they can use it to steal money or commit identity theft.
- Emotional Stress: The constant barrage of spam calls can cause significant emotional distress, especially for vulnerable individuals who may fall for these scams.
- Loss of Personal Data: Fraudulent calls that ask for personal information, such as Social Security numbers, credit card details, or passwords, can lead to identity theft and financial fraud.
- Legal Consequences: In some cases, scammers may threaten legal action or other punitive measures if the recipient does not comply with their demands, creating unnecessary fear and stress.
How to Protect Yourself from Spam Calls
There are several steps that individuals can take to protect themselves from spam calls:
- Block Unknown Numbers: Many smartphones offer the option to block calls from unknown or suspicious numbers. Use this feature to stop unwanted calls from getting through.
- Report Spam Calls: If you receive a suspicious call, report it to the relevant authorities, such as the ICO in the UK, to help prevent others from becoming victims.
- Be Cautious with Personal Information: Never share personal or financial information over the phone, especially with unsolicited callers. If a call seems suspicious, hang up and verify the caller’s identity using official contact details.
- Use Call-Blocking Apps: There are numerous apps available that can automatically block known spam numbers. Consider installing one of these apps for added protection.
Conclusion
Spam phone calls remain a pervasive issue in the UK, with scammers continually finding new ways to trick consumers into providing sensitive information. By staying informed and aware of the top reported spam numbers in 2025, individuals can better protect themselves from falling victim to these fraudulent schemes. Always exercise caution when answering unknown numbers, and take steps to block and report suspicious calls to help reduce the impact of spam calls in the future.
By following these safety tips and staying vigilant, you can safeguard your personal and financial information against the growing threat of spam calls.
Also Read This: Top Scam Numbers in UK to Watch (2025)
