Top Reported Spam Phone Numbers in UK (2025)

Spam and scam calls have become a persistent annoyance for many in the UK, with fraudsters constantly adapting their tactics to trick unsuspecting individuals. In 2025, certain phone numbers have been reported more frequently than others, raising concerns about their legitimacy and potential risks. In this article, we’ll take a closer look at the most commonly reported spam numbers in the UK for 2025, along with guidance on how to protect yourself from these unwanted calls.

Quick Overview of the Most Reported Numbers

Here’s a quick summary of the most frequently reported spam numbers in the UK this year. Each number listed below has been associated with a variety of scam tactics, including fake delivery notifications, phishing attempts, and aggressive sales tactics:

 Detailed Reports on Each Number

3301240409 – Fake Delivery Scams

This number is often associated with fake delivery notification scams, where victims receive automated messages claiming they have an undelivered package. The message usually urges the recipient to click a link or call back to arrange redelivery, potentially leading to identity theft or financial loss.

7418374068 – Financial Fraud Calls

Calls from this number often involve aggressive tactics to obtain sensitive financial information. Scammers may pose as bank representatives or financial institutions, pressuring individuals into sharing their banking details under the guise of security verification.

1312873387 – Insurance Scams

Reports indicate that this number is linked to insurance-related scams, where callers falsely offer new insurance policies or threaten to cancel existing coverage unless immediate payment is made. These scams often rely on fear tactics to manipulate victims.

1225234277 – Tech Support Scams

This number is commonly associated with tech support scams, where callers pretend to be from well-known tech companies, warning users of supposed security breaches or malware infections. The goal is often to gain remote access to the victim’s device or steal personal data.

3301244031 – Bank Impersonation Scams

Scammers using this number often pretend to be bank representatives, alerting potential victims to fraudulent activity on their accounts. They may request sensitive account information or urge immediate action to ‘secure’ the account, leading to significant financial losses.

1704610003 – Prize and Lottery Scams

This number has been linked to prize and lottery scams, where callers promise large cash rewards or luxury prizes in exchange for a small upfront fee or personal information. These scams often exploit people’s excitement and desire for quick gains.

7418374627 – Investment Fraud

Known for investment-related scams, this number targets individuals seeking financial growth opportunities. The scammers often promise high returns with little risk, pushing victims to transfer money into fraudulent investment schemes.

2882480137 – Energy Supplier Scams

Calls from this number typically involve fake energy suppliers attempting to pressure victims into switching providers or sharing financial details under the guise of reducing energy bills.

1615202425 – Compensation Scams

Scammers using this number often target individuals claiming they are entitled to compensation for various reasons, such as accident claims or financial mis-sold products, demanding upfront fees to release the funds.

2036081936 – Subscription Renewal Scams

This number is frequently reported for subscription-related scams, where automated messages threaten to charge the recipient for a service renewal unless immediate action is taken. These scams are designed to create panic and prompt hasty financial decisions.

How to Protect Yourself from Spam Calls

Here are some essential tips to protect yourself from these and other spam calls:

• Register with the TPS – Ensure your number is listed on the Telephone Preference Service (TPS) to reduce unsolicited calls.
• Use Call Blocking Apps – Install trusted apps like TrueCaller or Hiya to identify and block known spam numbers.
• Report Suspicious Calls – Use services like Ofcom or the ICO to report persistent scam numbers.
• Avoid Sharing Personal Information – Never share your personal or financial details over the phone unless you are 100% certain of the caller’s identity.
• Hang Up and Verify – If you receive a suspicious call, hang up and contact the company or institution directly using their official number.

Reporting and Blocking Scam Numbers

If you receive a call from any of these numbers, consider reporting them to the appropriate authorities, including:

• Ofcom – For general telecom-related issues.
• ICO (Information Commissioner’s Office) – For data protection and privacy concerns.
• TPS (Telephone Preference Service) – To stop unwanted sales and marketing calls.

Taking these steps can help reduce the spread of phone scams and protect others from falling victim to these fraudulent schemes.

 Final Thoughts

As scam tactics become increasingly sophisticated, it’s more important than ever to stay vigilant and protect your personal information. By recognizing the warning signs of common phone scams and using the tools available to block and report these numbers, you can significantly reduce your risk of falling victim to these fraudulent schemes. Stay alert, and don’t let the scammers win! 

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Discover the top reported spam phone numbers in the UK for 2025, including 3301240409, 7418374068, 1312873387, 1225234277, 3301244031, 1704610003, 7418374627, 2882480137, 1615202425, and 2036081936. Learn how to identify and block these numbers to stay safe from scams and fraud.