Spam calls have continued to plague phone users in the UK in 2025. From fake insurance claims to energy bill scams and investment fraud, scammers have been leveraging spoofed or disguised numbers to trick unsuspecting victims. This article lists the top reported spam phone numbers in the UK for 2025, with detailed explanations of what to look out for, examples of the types of scams, and how to report or block them.
Summary Table of Reported Spam Numbers
| Phone Number | Type of Scam | Common Complaint | Recommended Action |
| 01782 580403 | Insurance/Accident Scam | Cold calls pretending to be insurance agents | Block & Report |
| 0161 850 4320 | Energy Rebate Scam | Fake energy refund calls | Hang up & Report |
| 0208 058 7791 | Investment Fraud | High-risk fake investment opportunities | Ignore & Block |
| 0191 696 8300 | Tech Support Scam | Claims of computer viruses or Microsoft help | Do not engage |
| 0208 044 8944 | HMRC Tax Scam | Fake tax evasion threats | Report to HMRC |
| 0331 630 6277 | Bank Impersonation | Pretending to be from your bank | Verify separately |
| 0331 630 6599 | Broadband Scam | Claims of router issues or hacking | Contact provider |
| 0288 248 0140 | Missed Call Fraud | Rings once to get a call back | Don’t return call |
| 0203 912 7474 | Crypto Investment Scam | Fake crypto investment services | Avoid sharing info |
| 01656 337649 | Medical Scam | False NHS or health-related surveys | Hang up & block |
01782 580403 – Fake Insurance & Accident Claims
This number has been heavily reported in 2025 for making cold calls about car accidents that never happened. The caller often claims to represent an insurance company or a “legal compensation team” and pressures the recipient into providing personal details.
Example Complaint: “They called me saying I had a car crash 2 weeks ago, which is completely false.”
What to Do:
- Never confirm personal information.
- Hang up immediately.
- Block the number on your phone.
0161 850 4320 – Energy Rebate Scam
Callers from this Manchester-based number claim you are eligible for a government energy rebate. They ask for banking or meter details under the pretense of transferring money.
Example Complaint: “They said they were from British Gas and asked for my bank sort code!”
What to Do:
- Never give banking details over the phone.
- Confirm with your actual provider directly.
- Use apps like Truecaller to auto-block.
0208 058 7791 – Fraudulent Investment Opportunities
This London number is linked to fake financial investment schemes, including cryptocurrency startups and overseas property. These scammers use persuasive sales tactics, promising unusually high returns.
Example Complaint: “I was offered a chance to ‘triple’ my money within a month. Complete scam!”
What to Do:
- Be skeptical of “too good to be true” offers.
- Report the number to Action Fraud UK.
- Block and blacklist the number.
Check Recent Spamming Numbers:
01634535585 : : 040855989821 : : 01618200299 : : 07441902976 : : 01162018000
0191 696 8300 – Fake Tech Support Calls
Scammers using this number typically pretend to be from Microsoft or another tech company, claiming your computer is infected with a virus. They try to get remote access to your PC or ask you to install malware-laced software.
Example Complaint: “They told me my PC was being hacked and asked to take control of it!”
What to Do:
- Do not install or download anything they suggest.
- Hang up immediately.
- Report it to your phone network provider.
0208 044 8944 – HMRC Tax Scam
This number has been used in scary automated calls that warn the recipient of unpaid tax or legal action from HMRC. The voice message is robotic and demands that you “press 1” to speak to an agent.
Example Complaint: “I got a voicemail saying I was under arrest for tax evasion – complete nonsense!”
What to Do:
- HMRC will never call without written notice first.
- Do not engage.
- Report to HMRC’s phishing department.
0331 630 6277 – Bank Account Verification Scam
Scammers using this number pretend to be from your bank’s fraud department and say there was suspicious activity on your account. They ask you to confirm your account or security information.
Example Complaint: “They said they were from Barclays and needed me to confirm my PIN!”
What to Do:
- Hang up and call your bank directly using the number on your card.
- Do not share banking details.
- Report to your bank’s fraud team.
0331 630 6599 – Broadband Service Scam
This number is commonly linked to fake BT or Virgin Media broadband issues. The caller says your Wi-Fi has been compromised and offers to help “reset” it—by taking control of your router or asking for your login.
Example Complaint: “Said they were from BT Openreach and needed my router password.”
What to Do:
- Never share router login info.
- Contact your broadband provider directly if unsure.
- Block and report the number.
0288 248 0140 – Missed Call Scam
This Northern Ireland number is linked to one-ring call scams. It calls and immediately hangs up. If you call back, you are charged a premium rate or redirected to a scam line.
Example Complaint: “Called once and hung up. When I called back, it started playing weird music.”
What to Do:
- Don’t return unknown calls from unfamiliar area codes.
- Check the number online first.
- Block the number if it rings again.
0203 912 7474 – Crypto Investment Scams
Many reports show that this number offers fake crypto investment services, mimicking names like “CryptoTrust” or “London Digital Assets”. Victims are persuaded to invest money via shady platforms and are later ghosted.
Example Complaint: “They called about investing in ‘Bitcoin 360’—a total scam.”
What to Do:
- Do not transfer money to unknown firms.
- Always verify licenses via the FCA (Financial Conduct Authority).
- Report to Action Fraud.
01656 337649 – NHS/Health Survey Scam
Callers from this number pretend to conduct NHS surveys or offer free medical products. They may ask about your health status or offer a free “medical alert system” that requires a credit card for shipping.
Example Complaint: “Claimed to be from NHS offering free knee braces—wanted my card number.”
What to Do:
- NHS never asks for financial info via cold calls.
- Don’t give out health details to unsolicited callers.
- Block the number and inform NHS fraud hotline if needed.
How to Protect Yourself from Spam Calls
Here are some practical ways to stay safe from scam calls in the UK:
- ✅ Register with the Telephone Preference Service (TPS): It helps reduce unsolicited sales calls.
- 📱 Use Call Blocking Apps: Tools like Truecaller, Hiya, and built-in Android/iOS blockers are effective.
- 🧠 Never Share Sensitive Info: No matter how official the caller sounds.
- 📧 Report Suspicious Numbers: Use websites like WhoCalledMe.co.uk or report directly to your phone provider.
- 🚫 Don’t Call Back Unknown Numbers: Especially if they ring once and hang up.
Conclusion
Scam calls have evolved in sophistication and frequency. The numbers listed above are among the most reported spam phone numbers in the UK for 2025. They range from insurance and broadband scams to impersonations of HMRC and banks. Always stay vigilant, never give out personal or financial details over the phone, and use technology and common sense to stay protected.
Blocking and reporting these numbers helps everyone – including vulnerable individuals who might fall prey to these deceptive tactics.
Frequently Asked Questions (FAQs)
1. How can I tell if a phone call is a scam?
If the caller pressures you for personal, financial, or account information, or if it sounds too good to be true, it’s likely a scam.
2. Can I get fined for ignoring HMRC calls?
No, HMRC never calls without written communication first and never threatens arrest by phone.
3. What is the best app to block spam numbers in the UK?
Truecaller, Hiya, and Norton Mobile Security are among the best options for blocking scam calls.
4. Should I call back a missed call from an unknown number?
No. Especially if the call comes from an unfamiliar area code or rings once—this is likely a scam.
5. How do I report a spam number in the UK?
You can report spam calls to Action Fraud at actionfraud.police.uk or your network provider.
