Spam calls have become a significant nuisance for mobile phone users across the UK. With the rise of unsolicited marketing, fraud attempts, and robocalls, many people are seeking ways to block or identify spam phone numbers. These unwanted calls come from various sources, such as telemarketing companies, scammers, or even fraudsters pretending to be legitimate entities. In 2025, the UK remains a prime target for these intrusive calls.
This article will explore the top reported spam phone numbers in the UK in 2025. By highlighting these specific numbers, we aim to help readers identify potential spam calls and take the necessary steps to avoid falling victim to scams or wasting time on unwanted telemarketing calls.
Below, we provide an overview of some of the most reported spam numbers in the UK, offering insights into their possible origins and the risks they pose to consumers. We’ll also provide a table summarizing each phone number’s area code and reported activity.
Table of Top Reported Spam Numbers in the UK (2025)
| Phone Number | Area Code | Reported Activity/Origin |
| 01412488234 | Glasgow | Likely telemarketing, suspected scam |
| 02080561256 | London | Suspected debt collection scam |
| 03303413407 | National | Telemarketing, unsolicited marketing |
| 01782401192 | Stoke-on-Trent | Suspicious caller, potential fraud |
| 01204565837 | Greater Manchester | Persistent unsolicited calls |
| 07418 368807 | Mobile Number | Fraud attempt, fake bank calls |
| 01212853695 | Birmingham | Telemarketing, unwanted calls |
| 01746554966 | Shropshire | Potential phishing scam |
| 03316302079 | National | Fake loan offers, fraud risk |
| 01618843145 | Manchester | Unsolicited marketing, potential scam |
01412488234 – Glasgow (Telemarketing/Scam Risk)
The number 01412488234 has been frequently reported by UK mobile phone users as a source of unwanted calls, with a high volume of complaints. The area code 0141 is based in Glasgow, Scotland. Although it’s not always clear who is behind these calls, many people have flagged this number as related to telemarketing or possible scam activities.
The nature of these calls often involves hard-sell tactics, offering products or services that seem too good to be true, or claiming that the recipient owes money. This number is suspected to be used by companies engaging in aggressive sales tactics or scammers pretending to offer financial assistance.
What you should do: If you receive a call from this number, it’s best to avoid engaging with the caller. Block the number and report it to the relevant authorities if you believe it was a scam.
02080561256 – London (Debt Collection Scam)
Another frequently reported spam number in 2025 is 02080561256, which originates from London, as indicated by the area code 020. Reports suggest that this number is often linked to potential scams where the caller claims to be from a debt collection agency. The call may threaten legal action or claim that you owe money, urging you to pay immediately.
Scammers use these tactics to create a sense of urgency and pressure victims into paying sums they don’t owe. They may even provide fake details of an alleged debt.
What you should do: If you receive a call from this number, do not disclose any personal information. Hang up immediately and contact the organization allegedly contacting you through official channels to verify the legitimacy of the claim.
03303413407 – National (Unsolicited Marketing)
The number 03303413407 is a widely reported number associated with unsolicited marketing campaigns. This number belongs to the national range (033) and is commonly used by companies across various industries, including energy, insurance, and telecommunication services, to promote products or services.
While some of these calls may be legitimate marketing attempts, many consumers have reported them as intrusive and unwanted. Some have even complained that the call centers behind these numbers are pushy, failing to respect their Do Not Disturb preferences.
What you should do: You can block the number directly from your phone or report the call to the Telephone Preference Service (TPS) if you are on their Do Not Call register.
01782401192 – Stoke-on-Trent (Suspicious Call)
The number 01782401192 is reported by many UK consumers as suspicious, with some believing it is linked to fraudulent activity. Originating from Stoke-on-Trent, this number is typically used by scammers trying to trick recipients into giving away sensitive information or making unapproved payments.
Reports have indicated that scammers often disguise themselves as financial institutions or government bodies. They may pretend to be offering assistance, such as fraud protection, or claim that you need to take immediate action regarding an alleged problem with your accounts.
What you should do: If you receive a call from this number, avoid sharing any personal details. Instead, report it to your bank or relevant authorities.
01204565837 – Greater Manchester (Persistent Unsolicited Calls)
The number 01204565837 is associated with persistent unsolicited marketing calls. Hailing from Greater Manchester, many UK residents have reported receiving frequent calls from this number offering various services like insurance, loans, or vacations.
Although not necessarily a scam, the persistence of these calls can be annoying, especially when you’ve already asked them to stop. If a number continues to harass you after you have requested not to be contacted, it may violate telemarketing regulations.
What you should do: You can opt to block the number or report the calls to the Information Commissioner’s Office (ICO).
07418 368807 – Mobile Number (Fraud Attempt)
The number 07418 368807 is a mobile number reported by many as a potential fraud attempt. Calls from this number often involve scammers claiming to represent your bank, attempting to access your account details or trick you into transferring money for a fake emergency.
Given that this number uses a mobile area code (074), it could belong to anyone. However, due to its frequent reports of fraudulent activities, it’s recommended that you remain cautious.
What you should do: Never respond to requests for personal or financial information. Block the number immediately and report it.
01212853695 – Birmingham (Telemarketing)
The number 01212853695 is frequently associated with telemarketing calls originating from Birmingham. These calls usually involve marketing campaigns from companies selling various products or services, including insurance, energy services, and loans.
Check Recent Spamming Numbers:
01615319571: : 01218241090: : 01289222041: : 03332421450: : 01162018000
While these calls may not necessarily be fraudulent, many consumers have expressed frustration over the persistent nature of the calls, as well as their failure to respect the wishes of those who have opted out.
What you should do: Add this number to your blocked list and file a complaint with the Telephone Preference Service if you wish to stop receiving such calls.
01746554966 – Shropshire (Phishing Scam)
The number 01746554966, originating from Shropshire, has been flagged as a potential phishing scam. Consumers have reported receiving calls from this number claiming to be from government bodies or banks, attempting to trick people into sharing private information, such as account numbers or passwords.
Phishing scams are a significant concern, as they can result in identity theft or financial loss. It’s crucial to stay vigilant when receiving unsolicited calls, especially those that request sensitive information.
What you should do: Hang up immediately if you receive a call from this number. Do not provide any personal information. You can also report the number to the National Fraud Intelligence Bureau (NFIB).
03316302079 – National (Fake Loan Offers)
03316302079 is often reported for offering fake loan services, an increasingly common type of scam. The number is associated with predatory lending practices, where the caller claims they can help you secure a loan, but first, they ask for an upfront payment or personal details.
These scams typically lead to financial loss, as the caller will either disappear after the payment is made or use the information for fraudulent purposes.
What you should do: Never pay any money upfront for a loan. If you suspect you’ve been targeted by this number, report it to Action Fraud.
01618843145 – Manchester (Unsolicited Marketing)
Lastly, the number 01618843145, based in Manchester, is another frequently reported number associated with unsolicited marketing. These calls are often linked to companies offering services like debt management or insurance, and many recipients have complained about the frequency and intrusiveness of these calls.
What you should do: Block the number and report it to the relevant authorities.
Conclusion
Spam calls continue to be a widespread issue in the UK, with thousands of people reporting such numbers each year. The numbers listed above represent some of the most reported spam phone numbers in 2025. Whether originating from telemarketers, scammers, or fraudsters, these calls can be disruptive and harmful.
If you receive a call from any of these numbers or similar ones, it’s crucial not to engage with the caller. Instead, block the number, report it to the appropriate authorities, and remain vigilant when dealing with unsolicited phone calls. Taking these steps can help reduce the chances of falling victim to a scam or unwanted sales tactics.
