In the UK, spam calls continue to be a major nuisance, with scammers and telemarketers increasingly using sophisticated techniques to reach consumers. From unsolicited marketing calls to potential scams, these numbers can disrupt your daily life and put your personal data at risk. In 2025, these phone numbers have been frequently reported as sources of spam, causing concerns for many consumers.
In this article, we’ll explore the top reported spam phone numbers in the UK, what these numbers are commonly associated with, and how you can protect yourself. For each phone number, we’ll provide relevant details, and you’ll also find a handy table for quick reference.
Quick Overview of the Top Reported Spam Phone Numbers in the UK
Here’s a quick look at the most frequently reported spam phone numbers in the UK in 2025:
| Phone Number | Commonly Associated With | Frequency of Reports | Location |
| 07418374634 | Debt Collection & Scams | High | Nationwide |
| 02032686663 | Marketing Calls | High | London |
| 0151 317 8500 | Loan & Insurance Scams | Medium | Liverpool |
| 02080906677 | PPI Claims & Scams | High | London |
| 02038976533 | Cold Call Scams | High | London |
| 0161 884 3145 | Personal Loan Scams | Medium | Manchester |
| 02039616447 | Unsolicited Marketing | High | London |
| 01915433407 | Energy Switching Scams | Medium | Surrey |
| 01792722635 | Fake Investment Schemes | Low | Wales |
| 01223609721 | Fake Debt Collection | High | Cambridge |
1. 07418374634: Debt Collection & Scams
Overview
The number 07418374634 has been frequently reported by UK consumers for being associated with debt collection agencies and scam operations. Many individuals have reported receiving aggressive calls, often claiming that they owe money or have outstanding bills. These calls may sound official and urgent, trying to intimidate recipients into paying immediately or sharing personal information.
What People Are Saying
Many reports mention that the callers can be persistent, and they may use high-pressure tactics, such as threatening legal action or making false claims about outstanding debts. It’s important to recognize that legitimate debt collection agencies will follow strict procedures and will not demand payment over the phone or make threats.
How to Protect Yourself
If you receive a call from this number, do not engage with the caller. Always verify any debt collection claims by contacting the company directly using known contact details. Avoid sharing any personal information, including bank details, over the phone.
2. 02032686663: Marketing Calls
Overview
The 02032686663 number is commonly reported for being linked to unsolicited marketing calls, particularly from companies offering products or services you may not need. The callers may try to convince you to purchase insurance, energy plans, or other goods, often without your consent.
What People Are Saying
The majority of reports state that the callers can be persistent, offering too-good-to-be-true deals. Consumers have expressed frustration over receiving these calls, especially when they are registered with the Telephone Preference Service (TPS), which is supposed to block unwanted marketing calls.
How to Protect Yourself
If you’re receiving marketing calls from this number, consider reporting it to the Information Commissioner’s Office (ICO) or using services like TrueCaller to identify and block the caller. Make sure you’re on the TPS list, which legally restricts telemarketers from contacting you.
3. 0151 317 8500: Loan & Insurance Scams
Overview
The 0151 317 8500 number is frequently linked with scams involving fake loans and insurance offers. Callers from this number claim to offer financial products or services, often asking for an upfront fee or requiring sensitive information like bank details.
What People Are Saying
Many consumers report that the callers from this number are persistent and seem convincing, using professional-sounding language to mask their intentions. However, these services are usually fraudulent, with the callers disappearing once they have obtained the money or information they sought.
How to Protect Yourself
Always be cautious when dealing with unsolicited financial offers. Never share your financial information over the phone unless you’re sure of the caller’s identity. If it sounds too good to be true, it probably is. Block the number and report it to the relevant authorities, such as the FCA (Financial Conduct Authority).
4. 02080906677: PPI Claims & Scams
Overview
02080906677 is one of the most widely reported numbers, often associated with PPI (Payment Protection Insurance) claims and scams. These calls typically target individuals who may have had loans or credit cards in the past, offering to help them reclaim PPI they were not aware of.
What People Are Saying
While PPI claims were a legitimate issue in the past, many consumers report that the calls from this number are part of a scam, where callers charge large upfront fees and fail to deliver on promises. Some report receiving calls even after they have already claimed their PPI.
How to Protect Yourself
If you’ve already claimed PPI, there’s no need to respond to these calls. Be wary of any unsolicited offers for PPI claims and never pay upfront fees. If you’re unsure whether you have a claim, contact your bank or credit provider directly, rather than responding to these cold calls.
5. 02038976533: Cold Call Scams
Overview
The number 02038976533 is associated with cold-call scams, often targeting vulnerable individuals. These calls typically involve offers for fraudulent services, such as fake insurance or energy deals, and may attempt to extract personal information or payment.
What People Are Saying
Consumers have reported aggressive tactics, where the callers often push for immediate action. Many feel pressured to make decisions quickly, which could lead to them giving away sensitive information or falling for fraudulent schemes.
How to Protect Yourself
Always hang up if you receive a cold call offering unsolicited services. Do not share any information, and consider blocking the number. Registering with TPS can reduce the number of unwanted marketing calls.
6. 0161 884 3145: Personal Loan Scams
Overview
This phone number, 0161 884 3145, has been reported for being involved in personal loan scams. The callers claim to offer loans with incredibly low interest rates or flexible terms but often require an upfront fee before disbursing any funds.
What People Are Saying
Consumers have shared experiences where they were asked for payment before receiving the loan they were promised. Once the payment was made, the loan never materialized, and the number became unreachable.
How to Protect Yourself
If you’re looking for a loan, always go through trusted and regulated lenders. Avoid any unsolicited offers, especially those requiring payment upfront. It’s best to approach financial institutions directly rather than dealing with unknown callers.
7. 02039616447: Unsolicited Marketing
Overview
The 02039616447 number is another frequently reported number for unsolicited marketing calls. Callers often offer products or services in areas such as health insurance, investments, or energy tariffs.
What People Are Saying
Consumers are frustrated with the frequency of these calls, especially as they continue to receive them after opting out or registering with TPS. The calls often include vague or misleading information about the services being offered.
How to Protect Yourself
Blocking this number and reporting it to the ICO is a good first step. If you’re looking for services, such as insurance or energy deals, make sure to research providers directly rather than responding to unsolicited calls.
8. 01915433407: Energy Switching Scams
Overview
The 01915433407 number has been linked to scams involving energy switching, where the callers try to persuade consumers to change their energy providers. The callers often promise significant savings or “exclusive” deals.
What People Are Saying
Consumers report that the callers seem knowledgeable about energy tariffs and may even ask for personal details to complete the switch, which could lead to identity theft or signing up for unnecessary contracts.
How to Protect Yourself
If you’re considering switching energy providers, always go through a trusted comparison website or directly contact your current provider. Never share your personal details over the phone without verifying the caller’s identity.
9. 01792722635: Fake Investment Schemes
Overview
The 01792722635 number is linked to fake investment schemes, where callers entice individuals with promises of high returns or “insider” tips on investments.
What People Are Saying
Many victims have shared their stories of losing money to these scams. The callers may even provide fake testimonials or official-sounding documentation to convince you to invest in fraudulent schemes.
How to Protect Yourself
Always be cautious about unsolicited investment offers. Research thoroughly before making any investment decisions, and consult a professional financial advisor. If the offer sounds too good to be true, it likely is.
10. 01223609721: Fake Debt Collection
Overview
The 01223609721 number has been reported for being linked to fake debt collection activities. These calls typically involve threats or intimidation, claiming that you owe money and must pay immediately.
What People Are Saying
Consumers report receiving threatening calls from this number, even when they have no outstanding debts. These scams are designed to create panic and pressure individuals into paying money they don’t owe.
How to Protect Yourself
If you receive a call from this number, do not respond to the threats. Contact the alleged creditor directly using known contact information to verify any claims. You can also report these incidents to the ICO or Action Fraud.
Conclusion: Stay Alert and Protect Yourself
Spam and scam phone calls are a growing concern in the UK, with scammers using increasingly sophisticated methods to target individuals. By staying informed about the most reported spam numbers and taking proactive steps like blocking numbers and reporting fraudulent activity, you can protect yourself from falling victim to these scams.
If you receive calls from any of the numbers listed above, it’s important to stay calm and not engage with the caller. Always verify the caller’s identity through official channels, and consider using tools like TrueCaller or WhoCalledMe to help identify unknown callers.
Remember, your personal information is valuable, and scammers will use any means to try and exploit it. Stay vigilant and report suspicious calls to the relevant authorities to help protect yourself and others.
FAQs
1. How do I block spam calls on my phone?
- You can block numbers directly through your phone’s settings. Additionally, many smartphones come with built-in features to block spam calls or allow you to report them.
2. What should I do if I receive a scam call?
- Don’t engage with the caller. Hang up, and if necessary, report the number to organizations like the ICO or Action Fraud.
3. How can I reduce the number of marketing calls I receive?
- Register with the Telephone Preference Service (TPS) to reduce marketing calls. You can also use apps like TrueCaller to block unwanted calls.
4. Are these spam numbers dangerous?
- Yes, some spam numbers are associated with scams that can lead to identity theft or financial loss. Always verify the caller’s identity before sharing any information.
5. How do I know if a call is a scam or legitimate?
- Scams often involve high-pressure tactics, requests for money upfront, or offers that seem too good to be true. If you’re unsure, contact the company or organization directly using their verified contact details.
Meta Description:
Explore the top reported spam phone numbers in the UK for 2025, including 07418374634, 02032686663, 0151 317 8500, 02080906677, 02038976533, 0161 884 3145, 02039616447, 01915433407, 01792722635, and 01223609721. Learn about common scams, how to protect yourself, and stay informed with tools like TrueCaller, WhoCalledMe, and more.
