Top Reported Spam Phone Numbers in the UK (2025)

In 2025, spam and scam phone calls continue to be a major nuisance for people across the UK. With the rise of sophisticated technology and automated systems, identifying and avoiding these annoying and potentially dangerous calls has become more challenging. In this article, we will highlight some of the top reported spam phone numbers in the UK this year. We will also discuss the nature of these calls, how to protect yourself, and what to do if you receive one of these suspicious calls.

 Why Spam Calls Are a Growing Problem

Spam calls are not just an annoyance; they can pose significant financial and privacy risks. Fraudsters often use tactics like impersonation, phishing, and social engineering to trick unsuspecting victims into revealing personal information or making payments. Despite efforts by regulatory bodies like Ofcom and the Information Commissioner’s Office (ICO) to curb these activities, scammers continue to find new ways to reach potential victims.

Common Types of Spam Calls

• Robocalls – Automated, pre-recorded messages targeting large numbers of people.
• Wangiri Calls – Missed call scams that trick you into calling back premium-rate numbers.
• Phishing Calls – Calls designed to steal your personal or financial information.
• Tech Support Scams – Fraudsters pretending to be from tech companies to gain remote access to your devices.
• Prize and Lottery Scams – Fake notifications of winnings to lure victims into paying “fees” to claim their prize.

 Top Reported Spam Phone Numbers in the UK (2025)

Below is a list of some of the most frequently reported spam phone numbers in the UK this year. These numbers have been flagged by users for making unwanted, suspicious, or potentially dangerous calls.

Detailed Breakdown of Each Number

01743 839873 – Persistent Robocalls

This number is notorious for delivering persistent robocalls and automated messages, often involving fake surveys or aggressive marketing campaigns. Many recipients have reported multiple calls within a short period, making it a prime suspect for robocall operations.

0161 660 1030 – Tech Support Scams

This Manchester-based number is frequently reported for tech support scams, where callers pose as representatives from well-known companies like Microsoft or Apple. They often warn of non-existent issues with your computer or network and push for remote access or expensive “fixes.”

01289 222041 – Prize Scam Tactics

If you receive a call from this Berwick-upon-Tweed number, beware of claims that you have won a prize or lottery. Scammers using this number often request processing fees or personal information to claim your supposed winnings.

01952 446550 – Wangiri Missed Call Scam

This Telford number is linked to Wangiri scams, where the caller hangs up quickly, hoping you will call back and incur premium charges.

01205 386545 – High-Pressure Investment Scams

This number is associated with high-pressure sales pitches for dubious investments, often targeting the elderly or inexperienced investors.

01389 493417 – Phishing for Financial Data

This Dumbarton-based number has been flagged for making calls requesting sensitive financial data, including bank account numbers and security codes.

07418 374545 – Fake Delivery Notifications

Scammers using this mobile number often claim to be from a courier service, tricking victims into revealing personal information or paying bogus delivery fees.

01700 663675 – IRS and Tax Threats

This number is known for threatening legal action for unpaid taxes, a common scam targeting vulnerable individuals.

01782 580403 – Debt Collection Harassment

Based in Stoke-on-Trent, this number is often used in fake debt collection schemes, attempting to scare recipients into paying non-existent debts.

0161 850 4320 – Identity Theft Attempts

This Manchester number has been reported for trying to collect personal and financial data under the guise of identity verification or account security checks.

 How to Protect Yourself from Spam Calls

• Use Call Blocking Apps – Tools like Truecaller, RoboKiller, and Hiya can help identify and block spam calls.
• Register with TPS – Adding your number to the Telephone Preference Service (TPS) can reduce unwanted sales calls.
• Report Suspicious Numbers – Use services like Ofcom, the ICO, or WhoCalledMe to report and track spam numbers.
• Never Share Personal Info – Be cautious about sharing sensitive details over the phone.
• Avoid Calling Back Unknown Numbers – Especially if the number seems suspicious or unfamiliar.

 Final Thoughts and Call to Action

Spam calls remain a significant problem in 2025, but staying informed and using the right tools can greatly reduce your risk. Always be cautious with unknown numbers and take action by reporting suspicious calls. Remember, your vigilance can help protect others from becoming victims as well.

If you’ve received calls from any of the numbers listed here or others not mentioned, consider blocking them and reporting the incidents to relevant authorities. Together, we can reduce the impact of these scams and keep our phone lines safe.

Meta Description:

Explore the top reported spam phone numbers in the UK for 2025, including 01743 839873, 0161 660 1030, 01289 222041, 01952 446550, 01205 386545, 01389 493417, 07418 374545, 01700 663675, 01782 580403, and 0161 850 4320. Learn about their common scams and how to stay protected.