In recent years, the issue of spam calls has become more prevalent, with a growing number of scam calls targeting individuals across the UK 1656337649 . These calls can range from harmless nuisance calls to more sinister phishing attempts, where scammers try to steal your personal information. 2025 has seen a sharp rise in reported spam numbers, many of which have been flagged by tools like TrueCaller, WhoCalledMe, and others.
In this article, we will explore some of the most frequently reported spam phone numbers in the UK, including a breakdown of the associated patterns and how you can protect yourself from these unsolicited calls.
Quick Overview of Spam Numbers in the UK
Spam calls can come from various sources, including telemarketers, fraudsters, and scammers impersonating official organizations. While some spam calls are simply annoying, others can be highly deceptive, leading to financial loss or identity theft. As technology advances, so do the tactics used by these scammers, making it crucial to stay informed about the latest spam numbers.
We will now focus on the following phone numbers, which have been reported as spam or scam calls in 2025:
- 1234247239
- 1388436857
- 3316309077
- 3301240410
- 1708956207
- 1204565865
- 2080444031
- 1656337649
- 1218241090
- 3316307811
Each of these numbers has garnered significant attention for their association with fraudulent or unwanted calls. Let’s explore them in more detail.
1234247239 – The Phantom Telemarketer
Location: Unknown
Reports: Multiple complaints about unsolicited calls.
The number 1234247239 has been reported by many users across the UK as a source of annoying telemarketing calls. While some reports mention that the calls were seemingly harmless, others have noted that the callers attempted to sell non-existent products or services. Many users believe these calls are part of a larger telemarketing scam aimed at misleading consumers into subscribing to unnecessary services.
How to Protect Yourself:
- If you receive a call from this number, avoid engaging with the caller. Hang up immediately.
- Use call-blocking services like TrueCaller or the UK’s Ofcom to block and report such numbers.
1388436857 – The Fake Bank Scammer
Location: Likely to be international
Reports: Frequently associated with phishing scams.
The number 1388436857 is notorious for being associated with phishing scams where the caller pretends to be a representative from a well-known bank. The scammer typically claims that there has been suspicious activity on the target’s account and asks for sensitive banking details such as PINs and passwords.
These calls have been particularly dangerous, with many victims reporting financial losses due to their trust in these scammers.
How to Protect Yourself:
- Never share personal banking information over the phone, especially if you did not initiate the call.
- Contact your bank directly through verified contact details if you suspect fraudulent activity.
- Report the number to the ICO (Information Commissioner’s Office).
3316309077 – The International Robocaller
Location: Likely to be outside the UK
Reports: Reports suggest this number uses an automated robocall system.
The number 3316309077 has been identified as a source of automated robocalls. These calls typically leave pre-recorded messages, often claiming that the receiver has won a prize or needs to pay a fee to claim a supposed reward. The aim of these calls is to deceive the receiver into calling back or pressing a button to get more information, which can lead to high charges or further scams.
How to Protect Yourself:
- Avoid calling back numbers you do not recognize.
- Report the robocall through WhoCalledMe to help prevent others from falling victim.
- Consider using the Telephone Preference Service (TPS) to reduce unsolicited calls.
3301240410 – The Charity Scam
Location: Unknown
Reports: Known for impersonating charity organizations.
This number, 3301240410, has gained attention for its association with fraudulent charity calls. Scammers using this number often claim to represent well-known charities and ask for donations. While some of these calls might be legitimate, many have been found to be scams designed to steal money from unsuspecting individuals.
How to Protect Yourself:
- Before donating to a charity, verify their legitimacy via their official website or third-party charity regulators.
- Be cautious when sharing your financial details over the phone.
1708956207 – The PPI (Payment Protection Insurance) Scammer
Location: Likely UK-based
Reports: Frequently associated with PPI claims.
The 1708956207 number has been flagged in numerous reports regarding Payment Protection Insurance (PPI) claims. The caller typically tries to convince the individual that they are owed money from a past PPI policy and promises to help them claim it for a fee. These claims are often fraudulent or misleading, leaving victims out of pocket.
How to Protect Yourself:
- Do not pay any upfront fees for PPI claims.
- Report any suspicious PPI calls to Ofcom or TrueCaller for further investigation.
1204565865 – The Tech Support Scam
Location: Likely international
Reports: Frequently impersonates tech support services.
The 1204565865 number is a known source of tech support scams. The caller often claims that your computer has been infected with malware or is in need of urgent repairs. In reality, the caller is trying to gain access to your personal computer or install malicious software.
How to Protect Yourself:
- Never grant remote access to anyone who calls you unsolicited.
- Use trusted antivirus software and always update your devices to protect against malware.
- Report the number to WhoCalledMe or TrueCaller.
2080444031 – The Debt Collection Scam
Location: Likely UK-based
Reports: Associated with fake debt collection attempts.
The 2080444031 number has been flagged by many individuals as part of a scam targeting those in debt. Scammers often pretend to be legitimate debt collection agencies, threatening individuals with legal action or blacklisting unless they pay up immediately.
How to Protect Yourself:
- If you are contacted by a supposed debt collector, verify their details independently.
- Do not provide any financial information unless you are certain the call is legitimate.
- Report the number to Ofcom and block it.
1656337649 – The Prize Giveaway Scam
Location: Likely international
Reports: Claims of winning a prize, requiring payment for release.
The number 1656337649 has been reported in numerous complaints as a prize giveaway scam. Victims are told they have won a large prize, but they must pay an upfront fee or provide their credit card details to claim it. Once the payment is made, the prize is never received.
How to Protect Yourself:
- Be cautious of any unsolicited calls claiming you have won a prize.
- Never pay money upfront for prizes you did not enter to win.
- Report any suspicious calls to WhoCalledMe or TrueCaller.
1218241090 – The Loan Scam
Location: Likely UK-based
Reports: Often claims to offer easy loans.
The 1218241090 number has been linked to a loan scam. Callers claim to offer instant loans with little to no credit checks, asking for upfront fees or personal details. These types of loans are often fraudulent, with the scammers disappearing after the money is paid.
How to Protect Yourself:
- Avoid sharing your personal details with anyone who offers loans over the phone.
- If you are looking for a loan, go through official, regulated financial institutions.
- Report the number to the ICO if you suspect it is a scam.
3316307811 – The Free Holiday Scam
Location: Likely international
Reports: Claims to offer free holidays in exchange for personal details.
The 3316307811 number has been frequently reported as part of a scam offering “free” holidays or vacations. In these cases, the scammers try to extract personal information under the guise of booking a free trip, only to use the information for other fraudulent activities.
How to Protect Yourself:
- Never share personal information with unsolicited callers offering “free” gifts or services.
- Verify any offers through official channels before providing details.
- Report suspicious calls to TrueCaller and block the number.
Table: Reported Spam Numbers in the UK (2025)
| Phone Number | Location | Type of Scam | Reports and Concerns | How to Protect Yourself |
| 1234247239 | Unknown | Telemarketing Scam | Multiple reports of unsolicited calls | Hang up immediately, use call-blocking services |
| 1388436857 | International | Phishing Scam (Bank Impersonation) | Requests for banking information | Never share personal banking details over the phone |
| 3316309077 | Likely International | Robocall Scam | Automated calls claiming prizes | Do not call back, use call-blocking apps |
| 3301240410 | Unknown | Charity Scam | Fraudulent donation requests | Verify charities before donating |
| 1708956207 | UK-Based | PPI Claim Scam | False claims about PPI refunds | Do not pay upfront fees for claims |
| 1204565865 | Likely International | Tech Support Scam | Claims of infected computers | Never give remote access to unknown callers |
| 2080444031 | UK-Based | Debt Collection Scam | Fake debt collection threats | Verify details of debt collectors, do not provide payments |
| 1656337649 | Likely International | Prize Giveaway Scam | Requests for payment to claim “prizes” | Do not pay for non-existent prizes |
| 1218241090 | UK-Based | Loan Scam | Offers of easy loans with upfront fees | Avoid sharing financial details with unsolicited callers |
| 3316307811 | Likely International | Free Holiday Scam | Requests for personal details to claim “free” holidays | Do not share personal information with unknown callers |
Conclusion
Spam calls continue to plague phone users across the UK, with scam numbers rapidly changing as fraudsters adapt to new tactics. Recognizing these common spam numbers and understanding the risks associated with them can help protect you from falling victim to scams.
Always remain cautious when receiving unsolicited calls, especially those that ask for personal, financial, or sensitive information. Using tools like TrueCaller, WhoCalledMe, and the Telephone Preference Service (TPS) can help block unwanted calls and report scam numbers effectively.
If you’ve encountered any of the numbers mentioned above, report them immediately to Ofcom, TrueCaller, or the ICO. Stay vigilant and protect your personal information from scammers.
Also Read This: Top Reported Spam Phone Numbers in the UK (2025)
