In the digital age, receiving unsolicited or spam calls has become a growing issue. These calls can range from harmless marketing to aggressive scams designed to steal your personal information or money. In the UK, residents are constantly warned about the increasing number of spam phone numbers. In 2025, the situation seems to be escalating, with more individuals receiving unwanted calls daily. This article will provide detailed insights into some of the most reported spam phone numbers in the UK, including details about each one and tips on how to deal with them.
Quick Overview of Spam Calls in the UK
Spam calls are a significant problem in the UK, with thousands of reports each month about unsolicited calls. These calls often come from automated systems or telemarketing companies and may involve a variety of tactics, including sales pitches, fake surveys, or even more harmful scams like identity theft attempts.
The UK’s regulatory bodies, such as Ofcom and the Information Commissioner’s Office (ICO), have put several measures in place to protect consumers, including services like the Telephone Preference Service (TPS), which allows individuals to opt out of marketing calls. However, the effectiveness of these services can sometimes be limited, and many scam callers find ways to bypass these regulations.
Below is a list of some of the most frequently reported spam numbers in the UK for 2025, with detailed information about each number, the nature of the calls, and how you can protect yourself.
Top Reported Spam Phone Numbers In The UK (2025)
| Phone Number | Location | Reported Issue | Common Caller Type |
| 01977 788417 | Wakefield | Persistent nuisance calls from unknown sources | Potential scam or telemarketer |
| 02045792608 | London | Aggressive marketing calls | Robocall or sales pitch |
| 02039277564 | London | Claims to be from HMRC for unpaid taxes | Scam call (tax fraud) |
| 01865950244 | Oxfordshire | Fake bank fraud alert calls | Bank fraud scam |
| 08008620271 | Nationwide | Prize scam; fake giveaways | Scam (prize draw scam) |
| 02039676770 | London | Fraudulent charity donation requests | Charity scam |
| 03316303353 | Nationwide | Robocall pretending to be from a well-known company | Robocall / fraud |
| 03301244030 | Nationwide | Fake security system offers | Scam / fraudulent offer |
| 02037589440 | London | Claiming to offer insurance or debt consolidation | Insurance scam |
| 02070434505 | London | Fake PPI claim services | PPI scam |
01977 788417 – Persistent Nuisance Calls
The phone number 01977 788417 is one of the most frequently reported nuisance numbers in the UK. Originating from Wakefield, this number is linked to persistent calls that are often categorized as a form of cold-calling telemarketing. Many individuals have reported receiving unwanted calls multiple times a day, ranging from generic sales pitches to more aggressive marketing strategies.
While these calls may not always be scams, they are highly intrusive. The callers often try to pressure individuals into purchasing products or services that may not be needed. To protect yourself from such persistent nuisance calls, it’s recommended to register with the Telephone Preference Service (TPS) and report any aggressive behavior to the Information Commissioner’s Office (ICO).
02045792608 – Aggressive Marketing Calls
Another widely reported spam number is 02045792608. Based in London, this number is often associated with aggressive marketing tactics. These calls typically involve a recorded message or an automated system offering discounts or promotions for various products, services, or subscriptions.
One of the more concerning aspects of these calls is their ability to bypass mobile phone filters, meaning even people with well-configured call-blocking apps often fall victim. To avoid receiving calls from numbers like this, ensure your mobile phone’s spam filters are activated and report the number to the relevant authorities if the calls continue.
02039277564 – HMRC Scam Call
The number 02039277564 is commonly reported as a scam, where the caller claims to be from HM Revenue & Customs (HMRC). The call typically warns the recipient about unpaid taxes, suggesting that urgent action is required to avoid legal action or financial penalties.
In many cases, the caller may ask for sensitive personal information or even request immediate payment via bank transfer or gift cards. These types of scams are increasingly common, and it’s important to know that HMRC will never call to demand immediate payment over the phone. Always verify the legitimacy of such calls by contacting HMRC directly using a trusted number.
01865950244 – Fake Bank Fraud Alert
The number 01865950244, originating from Oxfordshire, has been reported in numerous cases where the caller claims to be from a well-known UK bank, warning about suspicious transactions on the victim’s account. This number is often associated with fraudulent bank scams.
Scammers will often ask for bank account details or request remote access to the victim’s computer under the guise of securing their account. If you receive such a call, do not provide any personal information or follow any instructions given by the caller. Always hang up and contact your bank directly through their official contact details.
08008620271 – Prize Scam Calls
Another frequently reported number is 08008620271, which is often linked to prize scam calls. These calls usually tell the recipient that they’ve won a large sum of money or a prize, but in order to claim it, they must first pay a small fee or provide sensitive information.
This type of scam plays on the excitement of receiving an unexpected prize, but it’s important to remember that legitimate prizes will never require payment upfront. If you receive such a call, hang up immediately and report it.
02039676770 – Charity Donation Scam
The number 02039676770 is linked to fraudulent charity donation requests. Callers will often pose as representatives of well-known charities, asking for donations to support causes such as cancer research or disaster relief. The scam often involves pressuring the recipient to donate immediately over the phone.
These types of scams can be emotionally manipulative, but it’s important to remain cautious. If you’re considering a donation, always check the charity’s legitimacy through trusted channels before giving any personal information or money.
03316303353 – Robocall Fraud
03316303353 is another widely reported robocall number in the UK. Robocalls are automated messages designed to deceive the recipient into responding or engaging with the caller. This particular number has been linked to fraudulent offers from supposed companies offering everything from loan approvals to energy deals.
To protect yourself from robocall fraud, always hang up on automated calls and report them to the relevant authorities. Installing call-blocking software or apps can also help reduce the number of robocalls you receive.
03301244030 – Fake Security System Offers
The number 03301244030 is associated with scammers offering fake home security systems. The callers often claim that they are from a well-known security company and offer discounts or free installations in exchange for immediate decisions or personal information.
Be cautious when receiving unsolicited offers for security products. Always research the company offering the deal and verify their legitimacy before agreeing to anything. It’s also a good idea to consult with trusted local security providers.
02037589440 – Insurance Scam Calls
02037589440 has been reported as a number used in insurance scam calls. The callers typically claim to offer car or home insurance at a lower price than what’s available in the market. They may even claim that your current insurance policy is about to expire and offer to renew it.
As with any unsolicited insurance offer, it’s essential to verify the legitimacy of the company before proceeding. If the offer sounds too good to be true, it probably is.
02070434505 – PPI Scam
Lastly, 02070434505 is often linked to PPI (Payment Protection Insurance) scams. These calls typically target individuals who may have been mis-sold PPI in the past and promise to help them claim compensation. However, these calls are often nothing more than an attempt to gather personal information.
If you’re looking to claim PPI compensation, always approach a regulated service and avoid unsolicited calls.
How to Protect Yourself from Spam Calls
Here are some practical tips for protecting yourself from spam and scam calls in the UK:
- Register with TPS: The Telephone Preference Service allows you to opt out of unsolicited marketing calls.
- Use Call Blocking Apps: Download apps such as TrueCaller or Hiya to automatically block known spam numbers.
- Don’t Engage: If you receive an unsolicited call, avoid engaging with the caller. Hang up immediately.
- Report Spam Calls: Report any spam or scam calls to Ofcom, ICO, or use the TrueCaller app to report numbers.
- Know the Scams: Familiarize yourself with common scams like prize draw fraud, PPI claims, or fake bank calls.
Conclusion
Spam calls are an unfortunate reality for many people in the UK, and 2025 has seen a rise in reported numbers. By staying vigilant and using tools like TPS, TrueCaller, and other call-blocking services, you can significantly reduce the impact of these nuisance calls. Always remember, if a call sounds suspicious, it’s better to hang up and verify the information before taking any action.
If you encounter any of the above numbers or similar spam calls, be sure to report them to the relevant authorities and take steps to protect your personal information.
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Discover the top reported spam phone numbers in the UK for 2025, including 01977 788417, 02045792608, 02039277564, 01865950244, 08008620271, 02039676770, 03316303353, 03301244030, 02037589440, and 02070434505. Learn how to identify and block nuisance calls for better phone security.
