In today’s increasingly connected world, phone scams and spam calls have become a major nuisance for many people. These unsolicited calls can range from harmless sales pitches to more malicious attempts at identity theft and fraud. According to reports, the UK has witnessed a rising number of spam calls from various phone numbers, making it more important for consumers to stay vigilant.
This article will delve into some of the top reported spam phone numbers in the UK for 2025, along with a breakdown of what these numbers represent and why they are considered spam. We will also provide insights on how you can protect yourself from these annoying and potentially harmful calls.
What is Spam Calling?
Spam calling refers to unsolicited phone calls made by telemarketers, robocallers, fraudsters, and scammers. These calls are often made for marketing purposes or to steal personal information from the victim. While some spam calls are easy to spot, others can be more sophisticated, using techniques like spoofing legitimate phone numbers to trick people into answering.
In the UK, spam calls are regulated, but the issue persists due to the continuous growth of online platforms that allow telemarketers and scammers to reach people easily. As a result, many people report receiving multiple calls a day from unfamiliar numbers. To help protect individuals, several websites and apps now track spam numbers and provide valuable information on which numbers are generating complaints.
Top Reported Spam Numbers in the UK (2025)
Based on recent reports and user complaints, here are some of the top spam phone numbers currently circulating in the UK:
| Phone Number | Location/Area | Frequency of Reports | Reason for Spam Status |
| 01389 493417 | Dumbarton, Scotland | High | Often linked to scam calls and debt collectors. |
| 02871140108 | Londonderry, Northern Ireland | High | Frequently reported for being part of scam operations. |
| 03316304166 | Nationwide (UK-wide) | High | Used by scammers pretending to be from well-known banks. |
| 01484467072 | Huddersfield, Yorkshire | Moderate | Frequently used for unsolicited marketing calls. |
| 03308085392 | Nationwide (UK-wide) | High | Reported for fraudulent activity related to tech support scams. |
| 03316304215 | Nationwide (UK-wide) | Moderate | Linked to fake charity fundraising campaigns. |
| 01618508167 | Manchester, England | High | Frequently used for phishing attempts targeting individuals. |
| 01384981005 | Dudley, West Midlands | Moderate | Used by telemarketers for cold calling. |
| 01792722612 | Swansea, Wales | Moderate | Reports of fraudulent surveys and product scams. |
| +44 20 8058 9801 | London, England | High | Spoofed number often used in fraudulent lottery scams. |
01389 493417 – Dumbarton, Scotland
This number has been linked to multiple reports of scam calls, often involving fake debt collection agencies. Scammers using this number typically claim that the recipient owes money and demand immediate payment. Victims are often pressured into making hasty decisions to pay off debts they do not owe. It is recommended to ignore calls from this number or block it altogether.
02871140108 – Londonderry, Northern Ireland
The number 02871140108 is frequently reported as a spam number associated with scam calls. These calls are often linked to fraudulent activities, such as fake lottery winnings or claims of legal action.
The aim is to lure the victim into providing personal details or making payments. If you receive a call from this number, it’s best to avoid answering and report it to your service provider.
03316304166 – Nationwide (UK-wide)
The 03316304166 number is often reported as a spam number, with many people stating that they received calls from someone claiming to be from a bank or financial institution. These calls are part of phishing attempts where scammers try to steal personal banking details. It’s essential to never give personal information over the phone, especially when you’re not sure who is calling.
01484467072 – Huddersfield, Yorkshire
This number has been linked to unwanted telemarketing calls, many of which involve offers for insurance, loans, or other financial services. While these calls may not be directly malicious, they are still considered spam because they are unsolicited and unwanted. If you’re receiving regular calls from this number, consider blocking it or reporting it to your network provider.
03308085392 – Nationwide (UK-wide)
Check Recent Spamming Numbers:
02870024945: : 02038597221: : 01482293847: : 0113 467 9062: : 02045722053
Another number frequently reported in spam call complaints is 03308085392. This number is often associated with fraudulent tech support scams. Scammers claim to represent well-known tech companies like Microsoft or Apple and attempt to convince victims that their devices are compromised or infected with malware. They may try to sell fake software or ask for remote access to personal computers. Always be cautious when receiving unsolicited calls about tech support issues.
603316304215 – Nationwide (UK-wide)
This number is frequently reported as being associated with fake charity campaigns. Scammers often impersonate charitable organizations, asking for donations or personal details. Some of these scams are very convincing, and the scammers may even use emotional manipulation to persuade people to give money. If you’re ever uncertain about the legitimacy of a charity, it’s a good idea to independently research the organization before making a donation.
01618508167 – Manchester, England
This number is commonly used in phishing scams. Fraudsters use this number to call people, often pretending to be representatives from government departments, utility companies, or other trusted organizations. Their goal is to convince the victim to provide sensitive information, such as their National Insurance number, bank account details, or passwords. Always be cautious when you receive unsolicited calls asking for personal information.
01384981005 – Dudley, West Midlands
Reports show that this number is used by telemarketers for cold calling. They often offer various products and services, ranging from loans to home improvement services. While not inherently malicious, these calls are considered spam because they are unsolicited and can be quite frequent. If you’re receiving regular calls from this number, it’s advisable to block it and report it as spam.
01792722612 – Swansea, Wales
This number is often associated with fraudulent surveys and product scams. The scammers typically ask the victim to participate in a survey or offer free products, but in exchange, they require payment details or personal information. It’s important to never engage with unsolicited survey offers and to block any suspicious numbers immediately.
+44 20 8058 9801 – London, England
One of the most frequently reported spam numbers is +44 20 8058 9801. This number is often used by scammers claiming that the victim has won a lottery or prize. They attempt to convince the individual to pay a fee in order to claim the prize, which, in reality, does not exist. If you receive a call from this number, hang up immediately and do not provide any personal or financial details.
How to Protect Yourself from Spam Calls
Receiving spam calls can be incredibly frustrating, but there are several steps you can take to protect yourself:
- Do Not Answer Unfamiliar Numbers: If you receive a call from an unknown or suspicious number, it’s best not to answer. Let the call go to voicemail, and if it’s important, the caller will leave a message.
- Use Call Blocking Apps: Many smartphones have call-blocking features that allow you to block specific numbers or unknown callers. Additionally, there are various apps available that can help identify and block spam numbers.
- Register with the Telephone Preference Service (TPS): The TPS is a free service that allows you to opt out of unsolicited sales and marketing calls. Registering with TPS can reduce the number of unwanted calls you receive.
- Report Spam Calls: If you receive a spam call, report it to your service provider or a consumer protection agency. In the UK, you can report spam calls to the Information Commissioner’s Office (ICO).
- Be Cautious with Your Information: Never share personal or financial information over the phone, especially when you didn’t initiate the call. If you think a call might be legitimate, hang up and call the organization back using a verified phone number.
Conclusion
Spam calls are an ongoing issue, but with increased awareness and the use of technology, it’s becoming easier to block and report these annoying calls. The numbers listed in this article are some of the top reported spam numbers in the UK for 2025, and if you receive calls from any of them, it’s important to exercise caution.
By staying vigilant and utilizing tools to block or report spam calls, you can protect yourself from scammers and telemarketers trying to take advantage of your time and personal information.
