
In today’s digital age, receiving unsolicited or spam phone calls has become a common issue faced by people across the globe. The UK is no exception to this problem, with many individuals reporting spam and scam calls on a daily basis. These calls can range from telemarketers trying to sell products or services to more serious threats like fraudulent schemes designed to steal personal or financial information.
This article delves into some of the most reported spam phone numbers in the UK as of 2025. We’ll discuss why these numbers are flagged as spam and provide details on the common tactics used by scammers. Additionally, we’ll offer advice on how to protect yourself from these unwanted calls.
03301749754
Overview:
The number 03301749754 is frequently reported as a nuisance caller. It has been linked to various spam activities, including unsolicited sales calls and scams related to PPI (Payment Protection Insurance) claims. Many users have flagged this number for promoting dubious financial services.
Why it’s flagged:
- The number often claims to be from companies offering financial services like insurance or loans, but these are typically phishing attempts.
- Callers may attempt to pressure individuals into sharing personal details.
- This number is often reported for using deceptive tactics to lure people into giving out sensitive information.
What to do:
If you receive a call from this number, do not engage with the caller. It is recommended to block the number and report it to the appropriate authorities such as the Information Commissioner’s Office (ICO).
01182286719

Overview:
The phone number 01182286719 has been flagged as one of the leading spam numbers across the UK. It has been reported for calling individuals and pretending to be from a well-known telecommunications company, offering deals on mobile contracts.
Why it’s flagged:
- The number is used by telemarketers to offer services that are often irrelevant or not as they seem.
- Some people have reported that the callers can be aggressive in nature, pressuring them to sign up for new contracts.
- In some cases, scammers have even claimed to be from the government or trusted companies to gain the victim’s trust.
What to do:
If you receive a call from this number, hang up immediately. Be cautious if they ask for any personal information or offer any services that seem too good to be true. It’s always safer to contact the company directly using official numbers found on their website.
02036701438

Overview:
Another frequently reported spam number in the UK is 02036701438. This number has been associated with fraudulent calls claiming to be from large organizations like banks or credit agencies.
Why it’s flagged:
- Calls from this number often involve scams where the caller attempts to gain access to personal banking information.
- The callers sometimes claim there has been suspicious activity on your account and ask you to verify personal details to “protect” your finances.
- Some individuals have reported receiving automated robocalls from this number, which can be extremely convincing.
What to do:
Avoid picking up the call or providing any information. If the caller claims to be from your bank or any other trusted institution, hang up and call the organization directly using the number found on their official website.
01217329501
Check Recent Spamming Numbers:
01634535585 : : 01134800357: : 01213927485: : 02871140108: : 07418360549
Overview:
The number 01217329501 is another known spam caller. It’s often associated with aggressive sales pitches and cold calls for a variety of products, such as insurance, credit cards, or loans.
Why it’s flagged:
- This number has been reported to use high-pressure tactics, making people feel obligated to engage with the caller.
- The nature of the sales calls is often misleading, and people have reported that they end up purchasing unnecessary products or services.
- Some users have also noted that this number calls repeatedly, which can be highly intrusive.
What to do:
If you receive a call from this number, it’s advisable to block the number. If the caller continues to contact you, consider reporting them to the Telephone Preference Service (TPS), which is a free service that helps reduce unsolicited marketing calls.
0800 652 0266
Overview:
The number 0800 652 0266 has been widely reported for being involved in fraudulent schemes, often associated with deceptive claims about refunds or fake prizes.
Why it’s flagged:
- The number is used in fraudulent schemes that claim the recipient has won a large sum of money or a prize. The callers will then ask for personal details or a payment for “administrative costs” to release the prize.
- Some reports have also indicated that the callers claim to represent government bodies or well-known organizations in an attempt to sound more trustworthy.
- Many victims of this scam end up losing money or having their personal information compromised.
What to do:
If you receive a call from this number, do not engage with the caller. It’s crucial not to provide any personal information or make any payments. You should report the number to the relevant authorities.
02080754322
Overview:
Another widely reported spam number in the UK is 02080754322. Similar to others, this number is often used for unsolicited calls offering various services, including loans, debt consolidation, or energy-saving solutions.
Why it’s flagged:
- The callers using this number often make misleading claims about the services they are offering.
- The number is linked to cold calls and sometimes attempts to get people to sign up for subscriptions or contracts without their full understanding.
- Some people have also reported that the calls are automated, which makes it difficult to determine the legitimacy of the message.
What to do:
If you suspect that a call from this number is spam, block the number immediately. Avoid any interaction and make sure to report it to the appropriate authorities to help prevent further harassment.
02045722127
Overview:
The phone number 02045722127 is commonly flagged for being part of scam operations that involve fraudulent financial services.
Why it’s flagged:
- The callers often claim to be from well-known financial institutions or government bodies offering unsolicited services like debt management or loans.
- This number has been linked to fraudulent schemes designed to steal sensitive financial information.
- Some individuals report receiving repeated calls from this number, which can be very stressful.
What to do:
Never provide sensitive financial details over the phone, especially if the call is unsolicited. Always verify the caller’s identity before engaging. Report the number to organizations like Action Fraud if you believe you’ve been targeted by a scam.
01483974485
Overview:
The number 01483974485 is another commonly reported spam number that engages in a variety of deceptive practices, ranging from cold calls offering services to more serious fraudulent attempts.
Why it’s flagged:
- This number has been reported for using misleading tactics, such as pretending to offer discounted products or services.
- The callers can often be aggressive, pressuring individuals to make quick decisions without providing enough time for careful consideration.
- The number has also been reported for phishing attempts designed to extract personal information.
What to do:
If you receive a call from this number, it’s best to block it and report it to a trusted spam reporting service. Never share personal or financial information with unknown callers.
+44 20 8058 0162
Overview:
The international number +44 20 8058 0162 is commonly reported for scam calls targeting UK residents. The calls usually involve offers for services that are too good to be true.
Why it’s flagged:
- Scammers use this number to offer fake loans, investments, or business opportunities.
- The callers may pressure victims into making hasty decisions and may not be reachable once money has been transferred.
- Some individuals have reported that the callers use high-pressure tactics to make people feel they are missing out on a limited-time opportunity.
What to do:
If you receive a call from an international number, be especially cautious. Do not engage in any conversation or share personal details. Consider reporting the number to the relevant authorities.
07520619042
Overview:
Finally, 07520619042 is another spam number that has been flagged for cold calling individuals with offers that seem too good to be true, such as free trials or exclusive deals.
Why it’s flagged:
- This number has been reported for attempting to sell services that many people later found to be fraudulent or of poor quality.
- The number often calls at inconvenient times, sometimes multiple times a day, making it incredibly annoying for the recipient.
- Some callers may even use threatening language or cause distress to victims in an attempt to get them to engage.
What to do:
Simply block the number and report it to the authorities. If you are unsure about the legitimacy of a service, always do your research and avoid giving out personal details over the phone.
Table of Top Reported Spam Numbers in the UK (2025)
Phone Number | Reported Issue | Common Scam Type |
03301749754 | Unsolicited financial services | PPI claims, phishing |
01182286719 | Aggressive sales calls | Telecommunications scams |
02036701438 | Fraudulent banking claims | Phishing, identity theft |
01217329501 | Persistent cold calling | Insurance, loans, high-pressure sales tactics |
0800 652 0266 | Fraudulent prize claims | Fake prizes, refunds |
02080754322 | Misleading service offers | Loans, debt consolidation, subscription traps |
02045722127 | Fraudulent financial services | Debt management, loan scams |
01483974485 | Misleading product offers | Discounted services, phishing |
+44 20 8058 0162 | Fake business opportunities | Loans, investments, quick money schemes |
07520619042 | Aggressive marketing tactics | Free trials, exclusive deals scams |
How to Protect Yourself From Spam Calls
- Don’t Answer Unknown Numbers: If you don’t recognize the number, let it go to voicemail. Scammers often don’t leave messages.
- Use Call Blocking Apps: Many apps can help block spam calls, filtering out known scam numbers.
- Sign Up for the Telephone Preference Service (TPS): This free service will help reduce unwanted marketing calls.
- Report Spam Calls: Reporting unwanted or scam calls to authorities can help raise awareness and prevent others from falling victim.
Conclusion
Spam calls in the UK are a serious issue, with many numbers being used for fraudulent schemes, unsolicited sales, or identity theft. By staying vigilant and using tools to block and report these numbers, you can protect yourself from falling victim to scams. Always be cautious when answering calls from unknown or suspicious numbers and remember that it’s better to be safe than sorry when it comes to sharing your personal information.