In 2025, spam phone calls continue to be a major nuisance for many individuals across the United Kingdom. These unsolicited calls often come from unknown or disguised numbers, causing confusion and frustration for the recipients. While some of these numbers are from legitimate businesses, many are from scammers or companies trying to sell products and services. In this article, we’ll explore the top reported spam phone numbers in the UK for 2025, helping you identify potential threats and avoid falling victim to scams.
We’ll cover each of these numbers in detail, discuss how they might affect you, and provide insights into how to handle these calls. You’ll also find helpful tools like TrueCaller, WhoCalledMe, and other resources to assist in identifying and blocking these numbers.
Top Reported Spam Numbers in the UK: Quick Overview
Here’s a table with a list of the top reported spam numbers in the UK for 2025. We’ll break down each of these numbers and explore the possible scams behind them.
| Phone Number | Description | Potential Scam Type | Caller Location |
| 01977 788417 | Often reported for nuisance calls | Cold Calls, Surveys | West Yorkshire |
| 02045792608 | Frequently reported for PPI calls | PPI Claims, Debt Solutions | London |
| 02039277564 | Associated with debt collection scams | Debt Collection, Loans | London |
| 01865950244 | Known for silent and hang-up calls | Telemarketing, Surveys | Oxfordshire |
| 08008620271 | Robocalls related to security services | Security System Scams | National |
| 02039676770 | Reported for aggressive telemarketing | Insurance Sales | London |
| 03316303353 | Commonly linked to fraudulent charges | Fake Charges, Bill Scams | Nationwide |
| 03301244030 | Known for phishing attempts | Bank Phishing, Scams | Nationwide |
| 02037589440 | Scams involving utility bills | Utility Bill Fraud, Surveys | London |
| 02070434505 | Claims to offer loans or financial help | Loan Offers, Fraud | London |
Check Recent Spamming Numbers:
01634535585 : : 040855989821 : : 01618200299 : : 07441902976 : : 01162018000
01977 788417: Nuisance Cold Calls and Surveys
Phone Number: 01977 788417
Location: West Yorkshire
Reported Issues: Many users have reported this number as a source of unwanted cold calls, typically involving surveys or promotional offers.
How to Deal with It
If you receive a call from 01977 788417, it’s best to hang up immediately. Don’t engage with the caller or provide any personal information. You can report the number to the Information Commissioner’s Office (ICO) or block the number through your phone’s settings. Using apps like TrueCaller can also help you identify and block this number in the future.
02045792608: PPI Claims and Debt Solutions
Phone Number: 02045792608
Location: London
Reported Issues: This number is commonly associated with calls about Payment Protection Insurance (PPI) claims, debt consolidation, or loan offers. The caller often pressures individuals to engage in services that might not even be legitimate.
How to Deal with It
If you’re not interested in PPI claims or debt solutions, hang up the call as soon as you can. These types of calls are a form of telemarketing and can lead to financial pitfalls if you agree to services without verifying their legitimacy. Block the number immediately and report it to relevant authorities, including Ofcom.
02039277564: Debt Collection and Loan Scams
Phone Number: 02039277564
Location: London
Reported Issues: This number has been linked to several reports of debt collection scams, with callers trying to pressure recipients into paying fake debts or agreeing to loans under questionable terms.
How to Deal with It
If you receive a call from this number claiming to be a debt collector, it’s important to verify the legitimacy of the call before taking any action. Never provide personal or financial information over the phone. If the caller cannot provide clear, verifiable information about the debt, you should report them to the authorities immediately.
01865950244: Silent Calls and Hang-ups
Phone Number: 01865950244
Location: Oxfordshire
Reported Issues: Known for silent calls, this number often rings and then disconnects before you can answer. This could be a form of telemarketing or even a scammer trying to see if they can get a response.
How to Deal with It
Silent calls are usually automated calls designed to identify active phone numbers. If you encounter this number, don’t call it back. Instead, block the number and consider reporting it to Ofcom if it happens repeatedly.
08008620271: Robocalls for Security System Scams
Phone Number: 08008620271
Location: National (appears on multiple regions)
Reported Issues: This 0800 number is often associated with robocalls offering home security systems or services. The callers may try to pressure you into buying unnecessary security equipment or signing up for overpriced services.
How to Deal with It
Don’t engage with the automated voice or press any buttons if prompted. If you receive a call from this number, hang up immediately. Block the number and report the incident to Action Fraud or Ofcom.
02039676770: Aggressive Telemarketing for Insurance Sales
Phone Number: 02039676770
Location: London
Reported Issues: Frequently reported for aggressive telemarketing, especially in connection with insurance sales. These callers often push individuals into making decisions on the spot.
How to Deal with It
If you receive a call offering insurance, be wary of high-pressure tactics. Take your time to research any offers before providing personal information. Block the number if you don’t want to receive further calls from this number, and report it to the ICO if it feels like harassment.
03316303353: Fraudulent Charges and Fake Billing
Phone Number: 03316303353
Location: Nationwide
Reported Issues: Calls from this number often involve fraudulent charges, where the caller claims you owe money or have been charged for services you didn’t sign up for.
How to Deal with It
Hang up immediately if you receive a call from this number. Never give out credit card or bank details over the phone unless you are certain the call is legitimate. Report the incident to Action Fraud and your bank.
03301244030: Bank Phishing Scams
Phone Number: 03301244030
Location: Nationwide
Reported Issues: This number is frequently reported for phishing attempts, where the caller pretends to be from your bank, asking for personal details or credit card information.
How to Deal with It
Never give out any personal information, including passwords or account numbers, over the phone. Legitimate banks will never ask for sensitive details via phone calls. Report the number to the ICO and Action Fraud if you believe you’ve received a phishing attempt.
02037589440: Utility Bill Fraud and Surveys
Phone Number: 02037589440
Location: London
Reported Issues: This number is linked to utility bill fraud, with callers offering to reduce your energy bills or claiming that you owe money for utilities you never used.
How to Deal with It
If you receive a call from this number, do not provide any personal or payment details. Contact your utility provider directly using their official contact information. Block the number and report it to Ofcom.
02070434505: Loan Offers and Financial Help Scams
Phone Number: 02070434505
Location: London
Reported Issues: Known for offering loans or financial help, this number is often reported for fraudulent loan offers. They may request upfront fees or provide loans with unfair terms.
How to Deal with It
Be cautious of unsolicited loan offers. Always research the lender and ensure they are regulated before proceeding with any loan agreement. Block the number immediately and report it to Action Fraud if you feel the offer is a scam.
How to Protect Yourself from Spam Calls
1. Use Call Blocking Apps
Apps like TrueCaller and WhoCalledMe are powerful tools that help identify spam calls and block them before they even reach your phone.
2. Register with the Telephone Preference Service (TPS)
The TPS is a free service that allows you to opt out of unsolicited marketing calls. By registering, you can reduce the number of cold calls you receive.
3. Don’t Engage with Scammers
If you receive a call from an unfamiliar number, especially one listed in this article, do not engage. Hanging up or blocking the number immediately is the best course of action.
4. Report Spam Calls
If you believe you’ve received a scam call, report it to Action Fraud, the ICO, or Ofcom. Reporting these calls helps authorities track down scammers and prevent others from falling victim.
Conclusion: Stay Vigilant Against Spam Calls
Spam and scam phone calls remain a persistent problem in the UK, affecting thousands of people every year. By being aware of these top reported spam phone numbers, you can protect yourself from falling prey to fraudulent schemes. Always take caution when answering unknown calls, and make use of resources like TrueCaller, TPS, and Ofcom to block and report suspicious numbers.
Stay safe, and if you think a call is suspicious, don’t hesitate to hang up, block the number, and report it.
