In 2025, spam phone calls remain one of the most persistent and troublesome forms of harassment faced by UK residents. Despite growing efforts from telecom providers, authorities, and technology companies to reduce the frequency of these calls, scam calls continue to plague mobile and landline users alike. Fraudsters and telemarketers are constantly looking for ways to exploit unsuspecting individuals, often leading to serious consequences such as financial loss or identity theft.
Among the most common scams are fraudulent calls posing as legitimate companies, government organizations, or even charities. With this in mind, it becomes essential to stay informed about the top reported spam numbers so you can avoid falling victim to these harmful schemes.
This article provides a comprehensive overview of some of the most reported spam phone numbers in the UK for 2025, their potential origins, and tips on how to protect yourself from these nuisance calls.
Top Reported Spam Numbers in the UK (2025)
Here are some of the most frequently reported spam numbers that UK residents have encountered in 2025. The following table summarizes key information about each number, its common association, and general details based on user reports.
| Phone Number | Reported Issue | Likely Origin | User Experience |
| 02030340147 | Debt Collection, Scams | Unknown, Possibly Debt Collection | Persistent calls, threatening tone |
| 02870024945 | Investment Scams | Unknown, Likely a Scammer Network | Promises of high returns, aggressive tactics |
| 01484599876 | Fake Surveys, Marketing | Likely Telemarketing Company | Repeated calls, non-compliant with Do Not Call requests |
| 07418360549 | Lottery Scam, Prize Scams | Fraudulent Numbers | Claims of winning large sums of money, requires payment |
| 03316306175 | Insurance Scams | Fake Insurance Companies | Fake insurance offers, urgent threats |
| 01218240924 | Technical Support Scam | Fraudulent Tech Support | Claims to fix computer issues for a fee |
| 01224907656 | Bank Impersonation, Fraud | Fraudsters Impersonating Banks | Claims of suspicious activity on account |
| 01414891742 | Fake Charities, Donation Scams | Scam Charities | Requests for donations for fake causes |
| 03301242973 | Pension Scams, Financial Fraud | Unknown Scammers | Urgent pension plan updates, demands for personal details |
| 02038899910 | Fake Debt Recovery Services | Likely a Fraudulent Debt Company | Claims of owed debt, threatening language |
Detailed Analysis of Top Reported Spam Numbers
Let’s take a closer look at each of these numbers to understand the types of scams and frauds associated with them.
02030340147 – Debt Collection and Scams
The number 02030340147 has been reported for harassment related to debt collection scams. Scammers often impersonate legitimate debt recovery agencies and threaten legal action if debts are not paid immediately. The calls are designed to create urgency and panic, forcing the individual to make hasty decisions, often leading to the payment of non-existent debts. It is advisable to verify any debt collection calls by contacting the company directly using verified contact details.
02870024945 – Investment Scams
This number has been linked to various investment scams, where fraudsters attempt to lure individuals into “too-good-to-be-true” financial opportunities. These scams typically promise large returns in exchange for small investments, only for the individual to later realize that they have been defrauded. Scammers use high-pressure tactics to convince individuals that their investment will grow exponentially. Always be cautious about unsolicited investment offers.
01484599876 – Fake Surveys and Marketing
The number 01484599876 is frequently reported in connection with fake surveys or marketing calls. Scammers typically use these surveys as a means of harvesting personal information. Individuals who participate in these calls might unknowingly provide sensitive information, which could later be used for fraud. Despite regulations like the Telephone Preference Service (TPS), many telemarketers and scammers continue to disregard these rules. It’s best to avoid engaging with unsolicited survey calls.
07418360549 – Lottery Scam and Prize Scams
A common scam associated with the number 07418360549 involves informing individuals that they have won a lottery or prize but need to pay taxes or fees upfront to claim their winnings. The scam is often sophisticated, with convincing calls that may include fraudulent documentation to make the scam appear legitimate. It’s important to remember that legitimate lotteries or competitions do not require winners to pay any money upfront.
03316306175 – Insurance Scams
Insurance scams are one of the most common forms of fraud in the UK. The number 03316306175 is reported to be linked to fake insurance companies that attempt to sell fake insurance products. These calls typically involve promises of lower premiums, but ultimately result in the collection of personal data or fraudulent insurance policies that are never activated. Always verify the legitimacy of any insurance provider and refrain from sharing personal or payment details over the phone.
01218240924 – Technical Support Scam
Technical support scams have become more widespread, with fraudsters using numbers like 01218240924 to convince people that their computers are infected with viruses or malware. The caller then offers to fix the issue for a fee, often directing the victim to install malicious software that gives the scammer access to sensitive information. It’s essential to ignore unsolicited technical support calls and only use verified support services from trusted companies.
01224907656 – Bank Impersonation and Fraud
Check Recent Spamming Numbers:
02038597221: : 02034815524: : 0113 467 9062: : 02045722053: : +44 20 3912 7474
01224907656 has been flagged as a number linked to scammers impersonating bank representatives. These fraudulent calls often claim that there has been suspicious activity on the victim’s bank account and request sensitive details, such as account numbers, passwords, and security codes. Never share personal banking information over the phone, especially with unsolicited callers. Always call your bank’s customer service directly to verify any suspicious claims.
01414891742 – Fake Charities and Donation Scams
Calls from 01414891742 are associated with fake charity scams, where scammers claim to represent legitimate causes but are actually trying to steal donations. They often use emotional appeals or urgent pleas for help. It’s essential to verify any charity before making a donation. Contact the organization directly using the information on their official website to ensure your contribution goes to a legitimate cause.
03301242973 – Pension Scams and Financial Fraud
The number 03301242973 is frequently associated with pension scams, where fraudsters promise to help you unlock or invest your pension funds but require upfront fees or personal details. These scams can be especially dangerous for older adults who may be unaware of the fraud. Always consult a financial advisor or trusted institution before making any decisions regarding your pension.
02038899910 – Debt Recovery Scams
Finally, 02038899910 is known for scam calls that claim to be from debt recovery services. These calls may threaten legal action or claim that a debt is owed, but they are often fraudulent. Scammers typically use intimidation tactics to pressure people into paying debts that don’t exist. If you receive such a call, hang up immediately and contact your actual debt recovery company or financial institution to verify the situation.
How to Protect Yourself from Spam Calls
Spam calls can be frustrating and potentially dangerous if you fall victim to a scam. Here are some steps you can take to protect yourself from these nuisance calls:
Use Call Blocking Features
Most smartphones have built-in call-blocking features that can filter out suspected spam calls. You can also download third-party apps that help identify and block spam calls.
Register with the Telephone Preference Service (TPS)
By registering your number with the TPS, you can reduce the number of unsolicited marketing calls you receive. While this won’t stop all spam calls, it can help minimize them significantly.
Avoid Engaging with Unknown Callers
If you don’t recognize the number, let it go to voicemail. Scammers rarely leave voicemail messages, but legitimate callers will.
Report Scam Calls
If you receive a scam call, report it to the relevant authorities such as Action Fraud (the UK’s national fraud and cybercrime reporting center) or your mobile provider.
Never Share Personal Information
Never share sensitive details such as your bank account number, PIN, or passwords over the phone, especially if you did not initiate the call.
Conclusion
Spam calls continue to be a significant issue in the UK in 2025. Numbers like 02030340147, 02870024945, and 07418360549 have been repeatedly reported for fraudulent activities such as investment scams, debt collection, and lottery fraud. Staying informed about these numbers and recognizing the signs of a scam is crucial for protecting yourself from financial loss and other harmful consequences.
By using call-blocking tools, verifying the legitimacy of unknown callers, and reporting suspicious numbers, you can significantly reduce the risk of falling victim to these scams. Stay vigilant and always be cautious when dealing with unsolicited phone calls.
