Top Reported Spam Phone Numbers in the UK (2025)

Spam calls are a growing nuisance in the UK, with millions of people receiving unwanted calls every year. From fake tax scams to deceptive insurance offers, these calls can be disruptive and potentially dangerous if they lead to financial loss or identity theft. In this article, we’ll cover some of the most reported spam phone numbers in the UK for 2025, helping you stay alert and protect yourself from potential scams.

Quick Overview of the Top Spam Numbers

To help you quickly identify some of the most reported spam numbers in the UK, here’s a handy table summarizing the numbers we’ll cover in this article:

Phone Number	Common Complaint	Potential Risk
07418374634	Insurance scams	Financial loss
02032686663	HMRC tax scams	Identity theft
0151 317 8500	Energy switching	Unwanted charges
02080906677	Debt relief scams	Financial fraud
02038976533	Fake surveys	Data harvesting
0161 884 3145	Tech support fraud	Device compromise
02039616447	Investment scams	Financial loss
01915433407	Lottery scams	Personal data loss
01792722635	Robocalls	Privacy invasion
01223609721	PPI claims scams	Financial theft

07418374634 – Insurance Scam Calls

This number is often reported as being linked to aggressive insurance scam tactics. Callers typically pose as representatives from well-known insurance firms, pushing unnecessary or even fake policies. They might try to trick you into revealing personal details or making upfront payments for non-existent coverage.

02032686663 – HMRC Tax Scam Calls

One of the most notorious numbers on this list, 02032686663 is frequently associated with fake HMRC tax calls. Scammers using this number often threaten victims with legal action or arrest unless immediate payment is made. These calls can be extremely convincing, using realistic scripts and spoofed caller IDs to appear legitimate.

0151 317 8500 – Energy Switching Scams

Scammers behind this number often target households with fake energy switching offers, claiming they can drastically reduce your bills. In reality, these calls are often designed to collect personal information or sign you up for expensive, unwanted services.

02080906677 – Debt Relief Scam Calls

This number is commonly linked to fraudulent debt relief schemes. Callers often claim they can help reduce your debt but instead end up tricking you into signing contracts with hidden fees or handing over sensitive financial information.

02038976533 – Fake Survey Calls

Fake surveys are a common tactic for gathering personal information, and this number has been flagged repeatedly for this type of scam. Be cautious if you receive calls from this number, as the information you share could be used for identity theft or unwanted marketing.

0161 884 3145 – Tech Support Fraud

Tech support scams have become increasingly sophisticated, and this number is a frequent offender. Scammers often claim there’s a problem with your computer or internet connection, pressuring you into paying for fake support services or downloading malicious software.

02039616447 – Investment Scam Calls

Investment scams can be particularly damaging, and 02039616447 is known for aggressive pitches on fake or high-risk investment opportunities. These calls often promise huge returns with little risk, but the reality is often financial loss.

01915433407 – Lottery and Prize Scams

This number is commonly linked to lottery or prize scams, where callers claim you’ve won a substantial prize but require a “processing fee” or personal information to release the winnings. These scams can be particularly enticing but are almost always fraudulent.

01792722635 – Robocalls and Automated Messages

Automated robocalls from this number often push various scams, from fake charity solicitations to bogus product offers. These calls can be highly disruptive and are typically designed to extract personal information or payments.

01223609721 – PPI Claims Scams

Although the official PPI claim deadline has passed, some scammers continue to exploit this topic. This number is often associated with fake PPI claim offers, aiming to trick you into revealing bank details or making unnecessary payments.

How to Protect Yourself from Scam Calls

Here are some practical steps to stay safe from these and other spam calls:

Don’t Share Personal Information: Never share sensitive details over the phone unless you’re certain of the caller’s identity.
Use Call-Blocking Tools: Many smartphones have built-in spam detection, and apps like TrueCaller can further reduce unwanted calls.
Register with TPS: The Telephone Preference Service (TPS) helps reduce unsolicited sales and marketing calls.
Report Scams: Use services like WhoCalledMe or report to Ofcom if you suspect a scam.
Stay Informed: Regularly check sites like the ICO and Ofcom for updates on the latest scams.

Final Thoughts

While it’s impossible to eliminate scam calls entirely, being aware of the most common tactics and numbers can significantly reduce your risk. Always be cautious with unknown numbers and take steps to protect your personal information. If you suspect you’ve received a scam call, report it to the appropriate authorities to help protect others.

Frequently Asked Questions (FAQs)

Q1: What should I do if I receive a scam call?
A: Hang up immediately, avoid sharing personal information, and report the call to services like Ofcom or the ICO.

Q2: Can I block these numbers permanently?
A: Yes, most phones have built-in call blocking features, and apps like TrueCaller can help.

Q3: How do scammers get my phone number?
A: Scammers often buy phone lists from data brokers or use automated systems to generate numbers.

Q4: Are all unknown numbers dangerous?
A: No, but it’s wise to be cautious and verify unknown numbers before responding.

Q5: How can I report a scam number?
A: Use services like WhoCalledMe or report to the TPS, Ofcom, or ICO for proper action.