With the rise of digital communication, phone scams and spam calls continue to be a persistent problem for consumers across the United Kingdom. Despite improved spam filtering and public awareness campaigns, fraudsters remain one step ahead, utilizing new techniques and phone numbers to deceive unsuspecting individuals.
In 2025, numerous UK residents have reported receiving spam calls from a set of recurring numbers. These numbers have been flagged for various fraudulent activities, ranging from fake HMRC scams to energy switching schemes, phishing attempts, and tech support fraud.
This article aims to inform readers about the top reported spam phone numbers in the UK for 2025, detailing the nature of the calls, tactics used by scammers, and what you should do if you receive a call from any of these numbers.
Summary Table: Top Spam Phone Numbers in the UK (2025)
| Phone Number | Type of Spam | Reported Tactics | Threat Level |
| 0161 464 0730 | Tech Support Scam | Claims your computer is infected | High |
| 0161 820 0299 | Energy Switch Fraud | Promises cheaper energy deals | Medium |
| 01782 401163 | HMRC Tax Scam | Threatens legal action | High |
| 020 8044 8719 | Bank Account Phishing | Fake security team from your bank | High |
| 020 8058 9329 | Crypto Investment Scam | Pushes bogus crypto opportunities | Medium |
| 01964 271004 | Amazon Prime Subscription Scam | Claims payment failed | High |
| 07400 009335 | Text Message Phishing | Sends suspicious links via SMS | Medium |
| 01904 463949 | Pension Scam | Offers “free” pension reviews | Medium |
| 020 4619 5786 | NHS/Medical Data Phishing | Asks for health info | Medium |
| 01202 022910 | Robocall – Insurance | Automated insurance reminders | Low |
0161 464 0730 — The Fake Tech Support Line
Location: Manchester
Reported As: Tech Support Scam
Typical Message: “Your computer has been infected with malware. We can help fix it remotely.”
Threat Level: High
This Manchester-based number has been reported extensively for impersonating Microsoft or other tech support services. Victims describe a caller with a foreign accent claiming their device has been compromised by hackers. They attempt to gain remote access via software like TeamViewer or AnyDesk. Once inside, they may lock the computer or request payment to remove nonexistent malware.
What to Do:
- Never allow remote access to your device unless you’re certain of the caller’s legitimacy.
- Report the number to Action Fraud.
- Install a reputable antivirus solution.
0161 820 0299 — Dodgy Energy Switching Services
Location: Manchester
Reported As: Energy Provider Scam
Typical Message: “We can reduce your energy bills by switching you to a better tariff.”
Threat Level: Medium
This number is associated with cold calls offering unsolicited energy deals. Many victims say the caller pressures them into sharing personal information or switching providers without providing proper verification.
Red Flags:
- The offer sounds too good to be true.
- The caller becomes pushy when questioned.
Advice:
Only switch energy providers through trusted channels or price comparison sites.
01782 401163 — HMRC Tax Evasion Threats
Location: Stoke-on-Trent
Reported As: HMRC Scam
Typical Message: “You owe back taxes. Legal action will be taken unless you call back.”
Threat Level: High
One of the most dangerous numbers on the list, 01782 401163 impersonates the HMRC. The scam uses fear tactics, threatening legal consequences unless the victim makes immediate payments via prepaid cards or bank transfers.
Protect Yourself:
- HMRC will never threaten arrest over the phone.
- Hang up and contact HMRC directly via their official number.
- Never share your National Insurance number or bank details.
020 8044 8719 — Fake Bank Security Team
Location: London
Reported As: Bank Account Scam
Typical Message: “There’s been suspicious activity on your account. We need to confirm your details.”
Threat Level: High
This number mimics your bank’s fraud department and tries to “verify” your identity, only to steal sensitive information. Several people lost money after unknowingly handing over card numbers and passwords.
Warning Signs:
- Caller asks for full passwords or PINs.
- Claims a “security transfer” must be done urgently.
Banks never ask for full passwords or move money to “safe” accounts.
020 8058 9329 — Crypto Investment Cons
Location: London
Reported As: Crypto Scam
Typical Message: “Invest £250 today and grow your money with our AI platform.”
Threat Level: Medium
Scammers here pose as investment advisors promoting cryptocurrency schemes. They often lure victims with flashy websites and fake testimonials. Once money is deposited, the company becomes unreachable.
Key Advice:
- Research thoroughly before investing.
- Check the FCA register for authorised firms.
- Don’t trust unsolicited investment calls.
01964 271004 — Amazon Subscription Phishing
Location: East Yorkshire
Reported As: Amazon Scam
Typical Message: “Your Amazon Prime subscription has expired. Press 1 to renew.”
Threat Level: High
Victims who engage are often redirected to an operator who tricks them into giving payment details. This scam has affected thousands across the UK.
Don’t Fall For It:
- Amazon doesn’t call for subscription renewals.
- Ignore any calls requesting payment via phone.
Check Recent Spamming Numbers:
1208530299: : 2030070316: : 2030340147: : 2870024945: : 2034752474
07400 009335 — Suspicious SMS Campaign
Location: Mobile Network
Reported As: Text Message Scam
Typical Message: “You have a missed delivery. Click here to reschedule.”
Threat Level: Medium
Often masked as a delivery company (like Royal Mail or DPD), this mobile number sends fraudulent SMS links. Clicking the link may install spyware or direct you to phishing pages.
Tips:
- Do not click on unknown links.
- Block and report the number to your network provider.
- Use apps like Truecaller to flag malicious numbers.
01904 463949 — Pension Review Trap
Location: York
Reported As: Pension Scam
Typical Message: “We’re offering a free pension review to help increase your retirement income.”
Threat Level: Medium
These scammers claim to be pension advisors, sometimes pretending to be from government-backed services. Their goal is to convince victims to transfer their pension to a high-risk or fake scheme.
Stay Safe:
- Never transfer your pension after a cold call.
- Contact The Pensions Advisory Service for genuine support.
- Be wary of promises of “guaranteed returns.”
020 4619 5786 — NHS Information Theft
Location: London
Reported As: Health Data Scam
Typical Message: “We’re updating your NHS profile. Please confirm your health history.”
Threat Level: Medium
Scammers impersonating NHS staff use this number to trick victims into sharing medical history, NHS numbers, or even payment details under the guise of appointment booking.
Precaution:
- NHS will never ask for payment over the phone.
- Verify calls by hanging up and contacting your local GP directly.
01202 022910 — Automated Insurance Robocalls
Location: Bournemouth
Reported As: Robocall – Insurance Reminder
Typical Message: “Your car insurance is due for renewal. Press 1 to continue.”
Threat Level: Low
This number uses automated messages to impersonate insurers. While not always malicious, the calls are unwanted and often misleading, pushing overpriced policies.
What to Know:
- Always confirm with your actual insurer.
- Register your number with the Telephone Preference Service (TPS) to block spam.
How to Protect Yourself from Spam Calls in 2025
Register with TPS
The Telephone Preference Service is a free tool that allows you to opt out of unsolicited sales and marketing calls.
Use Call-Blocking Apps
Apps like Hiya, Truecaller, and built-in call screening features on Android/iOS can automatically identify and block known spam numbers.
Don’t Trust Caller ID
Scammers often spoof legitimate-looking numbers. Always verify the identity of the caller independently.
Report to Authorities
If you receive a scam call, report it to:
- Action Fraud (www.actionfraud.police.uk)
- Ofcom (www.ofcom.org.uk)
- Your phone provider
Final Thoughts
The battle against spam calls is ongoing, and fraudsters are becoming more sophisticated with every passing year. The numbers listed in this article have been widely reported throughout the UK in 2025, and recognising them is a crucial step in protecting yourself and your loved ones.
Stay informed, stay sceptical, and always verify before you trust.
