In recent years, the number of spam calls has significantly increased across the UK, targeting unsuspecting individuals and businesses alike. These calls can come in various forms, from unsolicited marketing offers to fraudulent schemes designed to trick people into revealing personal information. As we move into 2025, certain phone numbers have been flagged as frequent offenders by the UK public. This article delves into the top reported spam phone numbers, explaining the nature of the calls associated with each one, and providing advice on how to deal with them.
Table of Contents
- Introduction: The Growing Threat of Spam Calls
- The Most Reported Spam Numbers in 2025
- 01615274971
- 01702660930
- 03301248035
- 01423645008
- 07441107428
- 01615316278
- 01234237085
- 03332421450
- 01615316131
- 01214243333
- 01615274971
- How to Handle Spam Calls
- Conclusion: Protecting Yourself from Spam Calls
Introduction: The Growing Threat of Spam Calls
Spam phone calls have become an ongoing nuisance for many people in the UK. These calls, which often involve telemarketers, scammers, or fraudsters, are typically unsolicited and can waste a considerable amount of time and effort. In some cases, these calls are more than just an inconvenience—they can pose serious security risks, especially when they involve phishing or identity theft.
According to reports from major UK telecoms and consumer protection organizations, the number of spam calls has risen sharply over the last few years. With technological advancements, scammers have developed increasingly sophisticated ways of contacting potential victims. From automated robocalls to live operators with convincing scripts, these perpetrators are constantly evolving their tactics.
The following section will detail some of the most reported spam phone numbers in the UK in 2025, based on consumer complaints, reports, and call-blocking applications.
The Most Reported Spam Numbers in 2025
In this section, we will look at ten phone numbers that have been flagged as frequently associated with spam calls in the UK. We will break down the nature of the calls coming from these numbers, common complaints, and how to avoid falling victim to their schemes.
| Phone Number | Location | Common Complaints | Nature of Spam | Actions to Take |
| 01615274971 | Manchester | Silent Calls, Robocalls | Automated telemarketing | Block and report |
| 01702660930 | Southend-on-Sea | Financial Scams, Cold Calls | Fake investment opportunities | Hang up, report to authorities |
| 03301248035 | National | PPI Scams, Insurance Fraud | PPI or financial product scams | Do not engage, report to FCA |
| 01423645008 | Darlington | Fraudulent Claims | Personal data theft schemes | Block and report to Action Fraud |
| 07441107428 | London | Fake Debt Collection | Impersonating debt recovery agencies | Do not provide any details, report to your bank |
| 01615316278 | Manchester | Robocalls, Unsolicited Marketing | Automated sales calls | Block, report to Ofcom |
| 01234237085 | Oxford | Loan Scams | Offering fake loans | Avoid engaging, report to your bank |
| 03332421450 | National | Fraudulent Tech Support | Tech support scam calls | Hang up immediately, report to NCSC |
| 01615316131 | Manchester | Robocalls, Survey Scams | Fake survey scams | Block the number, report to Ofcom |
| 01214243333 | Birmingham | Insurance Scams | Fake car insurance offers | Ignore, report to the Insurance Fraud Bureau |
01615274971 – Manchester
This number has been linked to multiple reports of robocalls and silent calls. Robocalls are automated calls that are often made by telemarketers, offering everything from discounts on household items to health-related products. In many instances, people who answer this call find no one on the other end, or an automated message asking them to press a key to receive further details. These types of calls can be extremely frustrating, and they may continue if the recipient shows any interest or engages with the call.
If you receive a call from 01615274971, it’s recommended to hang up immediately. If you’re unsure whether it’s legitimate, you can check it against databases of known spam numbers or use a call-blocking app to protect yourself.
01702660930 – Southend-on-Sea
This number has been linked to several fraudulent financial scams. Victims have reported receiving unsolicited calls, often offering fake investment opportunities, financial advice, or debt management services. These scams often ask for sensitive financial information or require upfront payments in exchange for supposed gains. The callers typically sound professional and use convincing language to persuade people to take immediate action.
If you receive a call from 01702660930, avoid engaging with the caller. Hang up and report the number to consumer protection organizations, such as the Financial Conduct Authority (FCA), or the National Trading Standards Scams Team.
03301248035 – National
This number is commonly associated with PPI (Payment Protection Insurance) scams. Callers will claim that you’re entitled to compensation and ask for personal details such as your full name, address, and banking information. It’s essential to recognize that legitimate PPI claims agencies will not make unsolicited calls to you.
If you receive a call from this number, don’t share any personal information and report it to the Financial Conduct Authority (FCA) or the Financial Ombudsman Service (FOS).
01423645008 – Darlington
Calls from this number are often connected to fraudulent claims designed to steal personal data. These calls usually promise compensation for an accident or injury that you might not even be aware of. Scammers will try to gather information about your medical history, previous accidents, and personal data under the guise of helping you claim compensation.
It’s best to hang up immediately if you receive a call from this number. You can also report the number to Action Fraud, the UK’s national fraud and cybercrime reporting center.
07441107428 – London
Check Recent Spamming Numbers:
02080906677: : 03316301300: : 01204565837: : 01204961931: : 01218241090
This number is typically associated with fake debt collection calls. Scammers posing as debt recovery agents will call and claim that you owe money to a company or individual, demanding payment immediately. The callers may use aggressive tactics to pressure you into paying, or threaten legal action if you do not comply.
Never provide any information, especially personal or financial details, to callers from 07441107428. If you believe the call might be legitimate, contact the company or organization directly through official channels, not through the phone number provided in the call.
01615316278 – Manchester
Similar to other numbers in the region, 01615316278 is often used for robocalls. The calls typically involve automated recordings trying to sell a variety of products or services. If you answer, you may hear a message that asks you to press a number to receive more information or to opt-out of future calls.
Block the number immediately or add it to your call-blocking app. If the calls persist, you can report them to Ofcom.
01234237085 – Oxford
This number is associated with loan scams, where callers offer fake loan services and request personal information. These loans are often promoted as “easy” or “no credit check” loans, but they may come with hidden fees or even involve identity theft.
Never provide personal or banking details over the phone. If you receive a call from this number, block it and report it to your bank.
03332421450 – National
Fraudulent tech support calls often originate from numbers like 03332421450. The caller will claim to be from a well-known tech company, like Microsoft or Apple, and suggest that your computer has a virus or security issue. They may ask for remote access to your computer or request payment for a bogus repair service.
Hang up immediately if you receive a call from this number. Genuine tech companies will never cold-call customers for issues like this.
01615316131 – Manchester
Similar to other numbers from Manchester, 01615316131 is known for robocalls. These calls may involve fake surveys, prize draws, or other offers that ask for personal details. The scammer might promise a prize or a reward in exchange for completing a survey or providing contact information.
Do not engage with the caller and report the number to Ofcom.
01214243333 – Birmingham
This number has been reported for offering fake car insurance deals. Victims have shared stories of receiving calls offering seemingly too-good-to-be-true car insurance policies, only to find that the offers were fraudulent or involved hidden fees.
If you receive a call from this number, ignore it and report it to the Insurance Fraud Bureau.
How to Handle Spam Calls
While spam calls can be frustrating, there are several ways to protect yourself:
- Don’t engage: Never provide personal or financial details over the phone unless you are certain of the caller’s identity.
- Use call-blocking apps: Apps like Truecaller, Hiya, and RoboKiller can help block known spam numbers.
- Report suspicious calls: If you receive a spam call, report it to organizations such as Ofcom, Action Fraud, or the National Trading Standards Scams Team.
- Register with the Telephone Preference Service (TPS): TPS allows you to opt out of unsolicited marketing calls.
Conclusion: Protecting Yourself from Spam Calls
Spam phone calls are a growing problem, and it’s crucial to stay vigilant. By recognizing known scam numbers, using call-blocking services, and reporting fraudulent calls, you can protect yourself and others from falling victim to these schemes. As we continue into 2025, it’s likely that the problem will evolve, but staying informed and aware is the best defense against spam calls.
