Spam calls have become an unfortunate part of our daily lives, and as technology advances, so do the tactics of spammers and scammers. In the UK 7537149396 , millions of people receive unwanted calls daily from unknown or suspicious numbers. These calls range from automated sales pitches to more malicious scam attempts, all designed to exploit unsuspecting victims. Identifying and reporting these numbers is crucial in fighting back against this widespread issue.
In 2025, several phone numbers have been repeatedly flagged by concerned UK residents for their association with spam, scams, and other forms of nuisance calling. In this article, we will dive into the details of the top reported spam phone numbers in the UK, providing useful information on what these numbers might be linked to and how to protect yourself from falling victim to their schemes.
Quick Overview of Spam Calls
Spam calls are a growing concern for UK residents. According to data from TrueCaller, over 40% of phone calls received by UK residents in 2025 are considered spam. These unwanted calls can include telemarketers, scam artists, and robocalls that are difficult to block manually. Many of these calls originate from international or unfamiliar area codes, making it even more challenging for people to identify potential threats. Understanding which numbers are associated with spam can help users protect themselves from these disruptions.
List of Top Reported Spam Numbers in the UK
Here are some of the most frequently reported spam numbers in the UK in 2025:
| Phone Number | Location | Reported Issues | Common Type of Call |
| 03316307343 | France | Unsolicited sales, scam calls | Automated sales pitches, scams |
| 02033410108 | London | Fake investments, scam | Fraudulent investment schemes |
| 07537149396 | UK | Robocalls, unsolicited marketing | Automated voice messages |
| 03303413752 | UK | Debt collection scam | Debt-related scams |
| 02038083197 | London | Prize draws, phishing | Fake lottery prize scams |
| 01202158180 | UK | Health insurance scam | Fraudulent health insurance offers |
| 01204891727 | UK | PPI refund scam | Misleading PPI refund calls |
| 02034752480 | London | Tax-related scams | Fake tax office calls |
| 03316306615 | France | Debt collection scam | Fraudulent debt recovery |
| 01218231410 | UK | Charity scams | Fake charity donation requests |
1. 03316307343 – France
This number has been flagged numerous times for unsolicited sales calls and potential scam activity. Many reports indicate that the calls are automated sales pitches for products or services that may not exist. Some reports also suggest that this number is linked to fraudulent business operations targeting unsuspecting consumers.
Key Issues:
- Unsolicited sales calls
- Scams related to fake services or products
- Calls are often automated, making it difficult to identify a real person
What to Do:
- Do not engage with the call.
- Block the number immediately to avoid future interruptions.
- Report the number to TrueCaller or any other spam reporting service.
2. 02033410108 – London
Another frequently reported number, 02033410108, is often associated with fake investment schemes and fraud. Callers from this number typically pitch “too-good-to-be-true” investment opportunities that promise high returns. These scams often target elderly or vulnerable individuals who might be less familiar with digital scams.
Key Issues:
- Fraudulent investment opportunities
- Fake financial advice
- Attempts to lure people into high-risk schemes
What to Do:
- Never invest money or share personal information over the phone.
- Hang up and block the number.
- Consider reporting the number to the UK’s National Fraud Intelligence Bureau (NFIB).
3. 07537149396 – UK
This UK-based number has been identified as a source of robocalls and unsolicited marketing attempts. Automated voice messages typically try to sell various products or services, often related to health, insurance, or loans. While some robocalls are legal, many of them border on harassment and can be misleading.
Key Issues:
- Automated voice messages
- Unsolicited marketing
- Frequent interruptions
What to Do:
- Do not respond to automated calls.
- Use call-blocking apps or services to filter these types of calls.
- Report the number to Ofcom if you feel harassed.
4. 03303413752 – UK
This number is commonly linked to debt collection scams. Fraudsters may claim that you owe money for unpaid bills or loans, pressuring you into paying immediately. Many victims have reported receiving threatening calls or text messages from this number, demanding urgent payment to avoid legal action.
Key Issues:
- Debt collection scams
- Threatening language and pressure tactics
- Fake or illegitimate debt recovery agencies
What to Do:
- Do not provide any payment information.
- Contact your actual creditors or financial institutions to verify any outstanding debts.
- Report the number to Action Fraud.
5. 02038083197 – London
This number is frequently used in scams related to fake prize draws or lottery wins. Callers from this number may tell you that you’ve won a large sum of money or a luxury prize, but in order to claim it, you need to provide personal details or pay upfront fees. This is a classic scam technique.
Key Issues:
- Fake lottery or prize draw wins
- Phishing for personal information
- Request for upfront fees
What to Do:
- Do not give any personal information or send money.
- Hang up immediately.
- Report the scam to Action Fraud and block the number.
6. 01202158180 – UK
Another common number that has been flagged for scam activity is 01202158180. Callers from this number often pitch fraudulent health insurance plans, claiming that you need to purchase immediate coverage to avoid high medical bills. These calls are typically designed to exploit people’s fear of high medical costs.
Key Issues:
- Fraudulent health insurance offers
- Attempts to pressure you into buying unnecessary coverage
- Misleading information about insurance policies
What to Do:
- Never agree to insurance deals over the phone.
- Verify the legitimacy of any insurance company before providing details.
- Report the number to Ofcom if you believe it is a scam.
7. 01204891727 – UK
This number is commonly linked to Payment Protection Insurance (PPI) refund scams. Callers claim that they can help you claim compensation for a PPI policy that you’ve supposedly purchased. In reality, these calls are often an attempt to charge you a fee or steal your personal information.
Key Issues:
- PPI refund scams
- Misleading claims about compensation
- Attempts to collect personal information
What to Do:
- Ignore any calls related to PPI refunds.
- Check your PPI status with a trusted financial institution rather than through unsolicited calls.
- Block and report the number immediately.
8. 02034752480 – London
This number has been reported for scam calls related to fake tax investigations. The caller might claim to be from HM Revenue & Customs (HMRC) and threaten legal action if you don’t pay an alleged outstanding tax debt. These calls are highly intimidating and are designed to get you to act quickly without verifying the claim.
Key Issues:
- Fake tax investigations
- Threatening language designed to panic recipients
- Fraudulent requests for tax payments
What to Do:
- HMRC will never contact you by phone for immediate payment.
- Always verify the legitimacy of tax-related claims directly with HMRC.
- Block the number and report it to Action Fraud.
9. 03316306615 – France
Similar to the first number, 03316306615 has been flagged for unsolicited sales calls. These calls often involve aggressive marketing tactics or scams promising lucrative business opportunities. The number has been marked as a consistent nuisance by UK residents.
Key Issues:
- Unsolicited sales calls
- Aggressive or deceptive marketing
- Automated or pre-recorded messages
What to Do:
- Do not respond to any sales pitches or requests for personal information.
- Block the number and report it to TrueCaller.
10. 01218231410 – UK
This number has been reported for scams related to fake charity donations. Callers from this number claim to be collecting money for well-known charities or emergency causes. However, the funds often go to fraudsters rather than the claimed charity.
Key Issues:
- Fake charity donation requests
- Misuse of well-known charity names
- Attempts to exploit people’s goodwill
What to Do:
- Do not donate money over the phone unless you are certain the charity is legitimate.
- Contact the charity directly to confirm if they are conducting any fundraising efforts.
- Report the number to Ofcom.
How to Protect Yourself From Spam Calls
Spam and scam calls are a persistent issue, but there are several steps you can take to protect yourself from falling victim:
- Use Call Blocking Apps: Apps like TrueCaller, Hiya, and Call Blocker can help filter out unwanted calls.
- Register with TPS: The Telephone Preference Service (TPS) allows you to opt out of unsolicited sales and marketing calls.
- Be Cautious with Personal Information: Never share your personal details, banking information, or passwords over the phone, especially with unknown callers.
- Report Suspicious Numbers: Report any suspicious calls to Action Fraud, Ofcom, or other relevant authorities.
- Hang Up Immediately: If you receive a call that feels suspicious or too pushy, hang up immediately.
Conclusion
Spam and scam calls are an ongoing issue in the UK, but by staying informed and vigilant, you can protect yourself from falling victim to these fraudulent activities. The phone numbers mentioned in this article are just a few of the many that are causing problems for UK residents in 2025. Always block and report any numbers that seem suspicious, and use call-blocking tools to help filter out unwanted calls.
By staying aware of these threats, you can make sure that you don’t fall prey to the tactics of scammers trying to exploit your trust.
Also Read This: 7701407206 Reported for Fraud in 2025
