As technology becomes more integrated into our daily lives, so does the risk of being targeted by spam and scam phone calls. In 2025, the United Kingdom has seen a surge in complaints about certain phone numbers suspected of being linked to fraudulent schemes, aggressive sales tactics, or phishing attempts.
This article delves into the top reported spam phone numbers in the UK, based on user reports, call frequency, and patterns associated with suspicious activity. Below is a detailed table summarizing the most reported numbers, followed by a breakdown of each with insights, common complaints, and expert advice on how to stay safe.
Table: Top Reported Spam Phone Numbers in the UK (2025)
| Phone Number | Type of Spam Reported | Common Complaints | Report Volume | Action Recommended |
| 01258 588702 | HMRC Scam | Tax refund hoax, threatening legal action | High | Block & Report |
| 01544 329845 | Fake Tech Support | Microsoft impersonation | High | Do not engage |
| 0333 003 8533 | Energy Supplier Scam | Fake discounts, tariff switching fraud | Very High | Block, notify Ofgem |
| 07418 374159 | Cryptocurrency Investment Scam | Fake investment offers | Moderate | Block & report to FCA |
| 01208 530299 | Insurance Scam | Car accident claims, fake renewals | High | Verify before responding |
| 020 3007 0316 | International Parcel Scam | Fake customs charges | Very High | Do not pay, report to NCSC |
| 020 3034 0147 | Bank Impersonation | Account security hoax | High | Contact your bank directly |
| 028 7002 4945 | Robocalls | Silent calls, automated messages | High | Register TPS, block number |
| 020 3475 2474 | Loan Scam | “Pre-approved” fake loans | Moderate | Avoid sharing personal info |
| 01484 599876 | Job Offer Scam | Fake recruiters, identity theft attempts | Moderate | Research before replying |
1. 01258 588702 – HMRC Scam Call
Many individuals have reported this number posing as the HM Revenue and Customs (HMRC). Victims say they received automated messages or live calls threatening legal action or offering fake tax refunds.
Common Tactics:
- Claiming you’re owed a tax rebate.
- Threatening arrest over unpaid taxes.
- Requesting personal details to “verify your identity.”
Expert Advice:
The real HMRC never initiates contact through aggressive phone calls. Never share personal or bank details over the phone. Hang up and contact HMRC directly through official channels.
2. 01544 329845 – Fake Tech Support
This number is commonly associated with a scam impersonating Microsoft or other tech companies. The caller may claim that your computer has a virus and offer to “fix it remotely.”
Common Signs:
- Pressure to give remote access.
- Asking for a payment to “secure your system.”
- Unusual tech jargon to sound convincing.
Expert Advice:
Legitimate tech companies will not cold call you. Hang up and run antivirus software from a trusted source. Consider reporting to Action Fraud UK.
3. 0333 003 8533 – Energy Supplier Scam
A well-known scam in 2025, this number often claims to offer cheaper gas and electricity tariffs, often pretending to be associated with Ofgem or well-known UK providers.
Reported Tactics:
- Claiming your energy supplier has gone bust and you need to switch.
- Asking for direct debit information.
- Pressuring you to act “immediately.”
Expert Advice:
Do not switch energy suppliers over the phone. Always use the official Ofgem site or compare plans through reputable platforms like Uswitch.
4. 07418 374159 – Cryptocurrency Investment Scam
This mobile number has been linked to crypto investment fraud, targeting individuals interested in Bitcoin and digital assets.
Typical Characteristics:
- Promises of high returns with low risk.
- Unsolicited investment opportunities.
- Pressure to deposit money into a crypto wallet.
Expert Advice:
The Financial Conduct Authority (FCA) has repeatedly warned about such scams. Verify the legitimacy of any investment platform and avoid deals that sound too good to be true.
Check Recent Spamming Numbers:
2030070316 : : 0161 968 7065: : 1619687065: : 1614640730: : 1772342898
5. 01208 530299 – Insurance Scam
This number frequently calls claiming to be from your car insurance provider. Victims report being asked to confirm details of a non-existent accident or to renew policies at inflated prices.
Scam Indicators:
- Caller has vague or incorrect details about your car.
- Pushes you to “renew now to avoid policy lapse.”
- Requests card information over the phone.
Expert Advice:
Always verify your insurance status via your official provider’s app or website. Never give out policy or card numbers to unsolicited callers.
6. 020 3007 0316 – Parcel Scam / Customs Fee Fraud
This number has grown notorious in 2025, especially post-Brexit, as scammers target people expecting international deliveries.
Reported Behavior:
- Pretending to be from Royal Mail, FedEx, or DPD.
- Claiming there’s a “small fee” to release a package.
- Links to phishing websites for payment.
Expert Advice:
Track all deliveries using official tracking numbers. Do not follow text or call links requesting payments. Report fake delivery scams to the NCSC (National Cyber Security Centre).
7. 020 3034 0147 – Bank Impersonation
This number often pretends to be from Barclays, Lloyds, HSBC, or other UK banks. The caller claims that suspicious activity was noticed on your account and requests security verification.
Key Warning Signs:
- Urgent tone and threats to freeze your account.
- Requests for PINs or online banking credentials.
- Caller ID spoofing to appear legitimate.
Expert Advice:
Banks never ask for passwords or full PINs by phone. Hang up and call the bank directly using the number on the back of your card.
8. 028 7002 4945 – Robocalls / Silent Calls
Many UK residents report this number as frequently making silent calls or playing automated messages.
Likely Purpose:
- Checking if your number is active for future scams.
- Robocalls attempting to trick you into pressing a number for a callback.
Expert Advice:
Use apps like Truecaller or your mobile provider’s spam protection tools. Register your number with the Telephone Preference Service (TPS).
9. 020 3475 2474 – Loan Scam
This number often pretends to represent lenders offering “pre-approved loans” or debt relief schemes.
Scam Characteristics:
- No credit check required.
- Fee requested before funds are released.
- Targeting people searching for credit online.
Expert Advice:
Real lenders do not ask for upfront fees. Check with the Financial Services Register before dealing with any lender.
10. 01484 599876 – Fake Job Offers / Recruitment Scam
This number has been linked to scams involving fake job interviews, typically in tech or remote roles.
Red Flags:
- Job offers without interviews.
- Requests for passport/ID documents.
- Asking for money for “training kits” or background checks.
Expert Advice:
Only apply through verified recruitment agencies or employer websites. Never pay for a job placement or provide sensitive documents without vetting the source.
How to Protect Yourself from Spam Calls in 2025
With the rise of artificial intelligence and caller ID spoofing, protecting yourself from spam calls requires vigilance and the use of modern tools. Here are some best practices:
Register with the Telephone Preference Service (TPS)
This helps block legitimate marketing calls but won’t stop all scams.
Use Call-Blocking Apps
Apps like Hiya, Truecaller, and RoboKiller help filter and identify spam calls in real-time.
Report Suspicious Calls
Use Action Fraud (www.actionfraud.police.uk) and report scams to the Information Commissioner’s Office (ICO).
Don’t Share Personal Info
Never give out your bank details, passwords, or ID documents over the phone unless you’re 100% sure of the caller’s identity.
Final Thoughts
Scam phone calls are evolving quickly in the UK, especially in 2025 as digital communication becomes more advanced. The top reported numbers listed here represent only a portion of the threats. However, awareness, caution, and prompt reporting can help protect not only yourself but the wider community.
Stay alert, question unsolicited contact, and always verify information through official sources.
