In 2025, spam calls continue to be a significant issue across the UK. With advancements in call spoofing and automated dialing, spammers are more persistent than ever. Despite efforts by telecom providers and regulatory bodies like Ofcom to curb these unwanted intrusions, UK residents still report thousands of spam and scam calls every day.
From fake bank alerts and HMRC impersonators to energy-switching schemes and investment fraud, the tactics are wide-ranging and often convincingly deceptive. This article compiles some of the most frequently reported spam numbers in the UK as of 2025, based on user complaints, online forums, and watchdog data.
What Is a Spam Call?
A spam call is an unsolicited phone call often made for fraudulent, telemarketing, or malicious purposes. These calls can be:
- Robocalls: Automated messages trying to sell products or services.
- Scam calls: Attempting to steal personal or financial information.
- Phishing attempts: Impersonating government agencies or banks.
- Fake tech support: Claiming to be from Microsoft or BT to access your computer.
Table of Top Reported Spam Numbers (2025)
Below is a table summarizing the top reported spam numbers in the UK. Each entry includes the number, type of spam reported, and a brief description based on user feedback.
| Phone Number | Type of Spam | Description |
| 0330 124 0406 | HMRC Scam | Robocall claiming unpaid taxes; threatens legal action |
| 0330 174 0216 | Energy Sales | Aggressive energy switch telemarketing |
| 07874 425213 | Investment Scam | Fake cryptocurrency or investment scheme |
| 028 7002 4018 | Broadband Scam | Poses as BT/Openreach about internet issues |
| 028 7002 4625 | Parcel Scam | Claims undelivered package and requests payment or info |
| 0191 364 0223 | Bank Scam | Impersonates major UK banks; phishing for account info |
| 0116 201 8000 | NHS Survey Scam | Claims to be NHS; asks health questions, possibly harvesting data |
| 07441 902976 | Loan Scam | Promises fast cash or payday loans; asks for upfront fees |
| 0331 630 6175 | Fake Tech Support | Pretends to be from Microsoft; asks for remote access to your PC |
| 0121 824 0924 | Car Accident Claim | Cold calls about “recent accident” you were never in |
0330 124 0406 – HMRC Scam
This number has been widely reported for impersonating HMRC (Her Majesty’s Revenue and Customs). It typically features an automated message warning of unpaid taxes, threatening arrest or legal proceedings if immediate action isn’t taken.
Victims have reported being urged to “press 1” to speak with an advisor, only to be connected to a scammer who tries to extract National Insurance numbers and bank details.
Advice: HMRC will never threaten you over the phone or demand immediate payments via gift cards or wire transfers.
0330 174 0216 – Energy Provider Scam
Another number flagged repeatedly, this one is tied to aggressive sales calls promoting energy deals. While not always strictly fraudulent, these calls often violate TPS (Telephone Preference Service) rules and use pressure tactics.
Users say the caller often poses as a representative of your current energy provider and claims you are “due a rate review” or “eligible for a refund.”
Advice: Always verify directly with your energy provider before sharing details. You can block such calls via your mobile provider or third-party apps.
07874 425213 – Investment & Crypto Scam
With the rise of cryptocurrency investment, this mobile number is frequently used by fraudulent investment firms. Victims report being cold-called and pitched “guaranteed returns” on cryptocurrency or foreign exchange platforms.
Many of these calls start with a polite agent offering a “risk-free trial” followed by a request for an initial deposit, which is never returned.
Advice: Avoid unsolicited investment opportunities. Verify with the FCA (Financial Conduct Authority) before investing.
028 7002 4018 – Broadband Scam
This Northern Ireland-based number is commonly used in tech support scams. Callers impersonate BT, Sky, or Virgin Media, warning about a compromised broadband connection.
Users are urged to give remote access to their computers to “fix the issue.” Once in, scammers may install malware, steal personal data, or request payment for fake repairs.
Advice: Your ISP will never cold-call you asking for remote desktop access. Hang up immediately.
028 7002 4625 – Parcel Delivery Scam
Reported often around holiday seasons, this number is used to impersonate Royal Mail or DPD, claiming a parcel couldn’t be delivered due to unpaid postage.
The text or voice message provides a link or prompts the user to call back, often leading to phishing pages or a live scammer asking for card details.
Advice: Royal Mail will never ask for payment via phone call. Always use official websites for parcel tracking.
0191 364 0223 – Bank Phishing Scam
This number, originating from the North East, is part of a sophisticated bank impersonation scam. Victims receive calls claiming suspicious activity on their account.
The caller often knows your name and bank, adding legitimacy. They then attempt to guide you through fake “security procedures,” ultimately trying to steal your credentials or move money.
Advice: Banks never ask for full PINs or passwords over the phone. If in doubt, hang up and call your bank using the official number.
0116 201 8000 – NHS Survey Scam
This Leicester-based number has been reported for posing as part of the NHS or Public Health England, often under the guise of a “health survey” or “COVID follow-up.”
Callers ask personal health questions and may request your NHS number or other identifying info, which could be used for identity theft.
Advice: NHS staff will always identify themselves clearly and never ask for payment or full ID details.
07441 902976 – Payday Loan & Financial Scam
This mobile number is used to offer quick loans, even to those with bad credit. Victims are promised fast approval but asked to pay a “processing fee” or provide sensitive banking details.
The loan is never received, and further attempts to contact the number often go unanswered.
Advice: Legitimate lenders in the UK must be registered with the Financial Conduct Authority (FCA). Avoid any lender asking for upfront payments.
Check Recent Spamming Numbers:
1544329845: : 1258588702: : 1544329845: : 3330038533: : 7418374159
0331 630 6175 – Microsoft Tech Support Scam
In this variation of a classic scam, the caller impersonates Microsoft support, warning that your computer has been compromised by viruses or hackers.
They may instruct you to open system logs showing “errors” (which are normal) and then push for remote access software installation like AnyDesk or TeamViewer.
Once they have access, they may demand payment, install ransomware, or steal credentials.
Advice: Microsoft will never initiate unsolicited contact for tech support. Disconnect immediately if you receive this call.
0121 824 0924 – Fake Accident Compensation
This Birmingham-based number is used by scammers claiming you’re entitled to compensation for a recent car accident — even if you’ve never been in one.
These calls are often part of a broader “claims farming” operation, where data is gathered and sold to no-win-no-fee legal firms, or worse, to fraud rings.
Advice: Don’t confirm or deny any personal information. Just hang up.
What To Do If You Receive a Spam Call
- Don’t engage – Don’t press buttons, respond, or talk.
- Hang up immediately – Especially if the call seems suspicious.
- Don’t give out personal information – No matter how “official” the call sounds.
- Report the number – Use sites like WhoCalledMe, Truecaller, or Ofcom.
- Block the number – Most smartphones allow number blocking.
- Register with TPS – The Telephone Preference Service helps reduce marketing calls.
Rising Trend in Spoofed Numbers
One of the key issues in 2025 is the spoofing of real UK numbers. Scammers can now make it appear as if they’re calling from a local or trusted number. Sometimes, the number shown belongs to a real person or business completely unrelated to the call.
This makes it even more difficult to know what’s real, which is why voice phishing (vishing) is so successful today.
How You Can Protect Yourself
- Enable spam detection on your mobile provider (O2, Vodafone, EE, and Three all offer this).
- Install a reputable call-blocking app, like Hiya, Truecaller, or RoboKiller.
- Use two-factor authentication for sensitive accounts.
- Never trust caller ID—Always verify from a trusted source.
Final Thoughts
Spam and scam calls are not only a nuisance but also a genuine threat to personal and financial security. The numbers listed here have been widely reported and are part of a larger trend affecting people across the UK. By staying informed and vigilant, you can reduce your risk of falling victim to these increasingly convincing schemes.
Remember: When in doubt, hang up and verify independently.
