Top Reported Spam Phone Numbers in the UK (2025)

Spam and scam phone calls continue to be a significant nuisance for UK residents in 2025, with many people reporting unwanted, fraudulent, or potentially dangerous calls. These calls often involve aggressive sales tactics, phishing attempts, or even outright scams designed to steal personal information or financial details. In this article, we’ll highlight the top reported spam phone numbers in the UK this year, helping you stay alert and protected. Let’s dive into the most frequently reported numbers and the common tactics they employ.

Quick Overview of Top Spam Numbers

To give you a snapshot of the most reported spam numbers in the UK, here is a table summarizing these numbers and their primary reported issues:

Understanding These Numbers and Their Tactics

1. 1738408739 – Aggressive Telemarketing

This number has been widely reported for its aggressive telemarketing tactics. Callers often use automated messages to pressure you into buying services or products you don’t need. These calls can be particularly annoying as they often come at inconvenient times, aiming to catch you off guard.

2. 1977788417 – Fake HMRC Tax Demands

Scammers using this number claim to be from HMRC, threatening legal action or arrest for unpaid taxes. They may ask you to provide sensitive information like your National Insurance number or bank details. Remember, HMRC will never demand this information over the phone.

3. 1274041023 – Fraudulent Insurance Offers

Reports indicate this number is linked to fraudulent insurance offers, promising lower premiums or quick payouts in exchange for upfront payments. These scams often target older adults or vulnerable individuals, making them particularly harmful.

4. 1792722617 – Investment Fraud

This number has been associated with suspicious investment schemes, promising high returns with little risk. These scams often rely on convincing sales pitches and fake success stories to lure in victims.

5. 1618201220 – Repeated Harassment Calls

Known for making frequent, silent calls, this number has been reported for harassment. It often uses automated systems that hang up after a few seconds, creating a sense of unease and inconvenience.

6. 3316309046 – Lottery and Prize Scams

Scammers using this number often claim you’ve won a prize or lottery, but request upfront fees or personal details to claim your winnings. Always be cautious with such calls, as legitimate prize organizations don’t ask for upfront payments.

7. 1918239030 – Phony Tech Support

Many reports indicate this number is used for fake tech support scams, where callers claim your computer is infected or compromised, urging you to provide remote access or payment for unnecessary software.

8. 1388224992 – Loan Approval Scams

This number is linked to loan approval scams, where callers promise easy approval for loans despite bad credit, only to disappear once upfront payments are made.

9. 1204935816 – Energy Rebate Scams

This number targets people with false promises of energy rebates or refunds, often demanding personal details or immediate payments.

10. 1438382070 – Survey and Personal Data Theft

Reports suggest this number is used for survey scams, where seemingly harmless questions are used to collect sensitive personal data for identity theft.

 How to Protect Yourself from These Scams

• Never share personal information like bank details, National Insurance numbers, or passwords over the phone.
• Use call-blocking apps like TrueCaller or Hiya to filter out known spam numbers.
• Register with the TPS (Telephone Preference Service) to reduce unwanted marketing calls.
• Report suspicious calls to Ofcom, the ICO (Information Commissioner’s Office), or Action Fraud.
• Be cautious of urgent or threatening language – legitimate companies won’t pressure you into immediate actions.

 Take Action – Stay Protected!

If you’ve received calls from any of these numbers, consider blocking them and reporting the incident to the appropriate authorities. Staying informed and cautious is the best defense against phone scams. Spread the word to help others avoid falling victim to these common tactics in 2025.

 Frequently Asked Questions

1. How can I identify a scam call?
Look out for aggressive language, unsolicited offers, or demands for personal information. Trust your instincts if something feels off.

2. Can I report these numbers to the authorities?
Yes, you can report spam calls to Ofcom, the ICO, or Action Fraud in the UK.

3. Are robocalls illegal in the UK?
Unsolicited robocalls for marketing purposes are illegal without prior consent in the UK.

4. How do I block spam numbers on my phone?
Most smartphones allow you to block numbers directly in the call settings, or you can use third-party apps for added protection.

5. Can scammers use real phone numbers?
Yes, scammers often use number spoofing to make it appear like calls are coming from legitimate or local numbers.

Meta Description:
Discover the top reported spam phone numbers in the UK for 2025, including 1738408739, 1977788417, 1274041023, 1792722617, 1618201220, 3316309046, 1918239030, 1388224992, 1204935816, and 1438382070. Learn how to identify and block these nuisance calls to stay safe from scams.