Spam phone calls continue to be a significant nuisance and threat to people across the UK in 2025. From relentless sales pitches to sophisticated scams, many individuals find themselves dodging unsolicited calls on a daily basis. According to recent community reports and user-submitted data, certain numbers stand out as frequent offenders. In this article, we’ll explore the top reported spam numbers across the UK in 2025, detailing the nature of these calls, public feedback, and tips for protecting yourself.
Summary Table of Top Reported Spam Numbers (2025)
| Phone Number | Reported Type | Common Tactics | Area Code Location |
| 01615274971 | Scam / Fraud | Bank impersonation | Manchester |
| 01702660930 | Robocall / Survey | Automated messages | Southend-on-Sea |
| 03301248035 | Telemarketing | Energy switching sales | Non-geographic (UK-wide) |
| 01423645008 | Scam / Fraud | Tax refund phishing | Harrogate |
| 07441107428 | Mobile Scam | Missed call / Callback scam | UK Mobile (Vodafone) |
| 01615316278 | Scam / Bank Fraud | Claiming to be from HSBC | Manchester |
| 01234237085 | Tech Support Scam | Microsoft impersonators | Bedford |
| 03332421450 | Loan Scam | Fake loan offers | Non-geographic (UK-wide) |
| 01615316131 | Investment Scam | Cryptocurrency investment pitch | Manchester |
| 01214243333 | Insurance Scam | “Accident claim” follow-up | Birmingham |
In-Depth Reports on Top Spam Numbers
1. 01615274971 – Manchester (Scam / Fraud)
This number has been widely reported by users in 2025 as part of a fraudulent campaign impersonating UK banks, especially Barclays and NatWest. Victims reported receiving calls claiming suspicious transactions had occurred on their accounts and were then pressured to “verify” personal and banking information. Several individuals have flagged this number as particularly convincing due to the use of urgent language and spoofed caller ID.
Warning: Never provide banking details over the phone unless you initiated the call and are sure of the recipient.
2. 01702660930 – Southend-on-Sea (Robocall / Survey)
This number has been linked with a wave of automated calls pretending to conduct government or health-related surveys. Users note that the call usually begins with a robotic voice asking questions about COVID-19 status or offering “health coverage upgrades.” These surveys often end with a request for personal details or a prompt to speak with an agent.
Advice: Hang up immediately if you’re asked to press a number to continue or give private details.
3. 03301248035 – UK-wide (Telemarketing / Energy Switching)
0330 numbers are non-geographic and can be used across the UK, making them popular with scammers and telemarketers. This specific number has been reported as part of an aggressive energy switching campaign. Callers claim to work with Ofgem or energy comparison services and push users to switch providers under the guise of “new regulation compliance.”
Note: Ofgem does not call customers directly. Always verify such claims independently.
4. 01423645008 – Harrogate (Scam / Tax Refund Phishing)
This number has become notorious for targeting individuals with fake tax rebate notifications. Victims are informed they are owed a refund and are then asked to provide bank details or log in to a fake HMRC portal. Reports indicate the calls spike around tax season, exploiting public confusion.
Recommendation: Contact HMRC directly using official channels if you receive a suspicious tax-related call.
Check Recent Spamming Numbers:
1258588702Â : : 1544329845: : 3330038533: : 7418374159: : 1208530299
5. 07441107428 – Mobile Number (Missed Call Scam)
07441107428 has been flagged in missed call scams. Users receive a short ring, often during the night or early morning, prompting curiosity. Calling back results in a high-rate charge or connects to an overseas call center that attempts to extract information.
Tip: Avoid calling back numbers you don’t recognize, especially if they only ring once.
6. 01615316278 – Manchester (Banking Scam / HSBC Impersonation)
Another Manchester-based scam number, this one primarily mimics HSBC security alerts. Victims are told their account is at risk and are walked through transferring their money to a “safe account.” The fraudsters use professional-sounding scripts and often spoof the official HSBC phone number in caller ID.
Protect Yourself: Banks never ask you to transfer money to another account for safety. Hang up and call your bank directly.
7. 01234237085 – Bedford (Tech Support Scam)
This number is tied to a long-running tech support scam. Callers claim to be from Microsoft or “Windows Technical Department” and report that the user’s computer has been hacked or infected with a virus. They try to gain remote access, install malware, or trick victims into paying for fake services.
Important: Microsoft will never make unsolicited tech support calls.
8. 03332421450 – UK-wide (Loan / Debt Scam)
Reported as part of a loan scam, callers from this number offer “pre-approved” loans even to people with bad credit. They request upfront processing fees or ask for personal identification before any loan is disbursed. Victims often never receive the promised money and struggle to get a refund.
Reminder: Legitimate lenders never require upfront fees. Check the FCA register to verify any lender.
9. 01615316131 – Manchester (Investment Scam / Crypto Fraud)
In 2025, cryptocurrency scams remain rampant, and this number is associated with fraudulent investment schemes. Callers typically pitch “exclusive” Bitcoin or Ethereum investment opportunities, promising high returns in a short time. The conversation often involves sending money via cryptocurrency wallets or transfers.
Red Flag: If it sounds too good to be true, it probably is. Avoid all unsolicited investment offers.
10. 01214243333 – Birmingham (Insurance / Accident Scam)
This Birmingham number is commonly linked with “we’ve been informed you were in an accident” calls. These insurance scam calls attempt to elicit details of real or fabricated road traffic incidents, likely as part of a fake claim or to sell your information to a third party.
Advice: Don’t confirm or deny accident involvement. Just hang up.
How to Deal With Spam and Scam Calls
If you’ve received a call from any of the numbers listed above—or any suspicious number—consider the following steps:
1. Don’t Engage
- Avoid speaking with the caller.
- Do not press any buttons or follow prompts.
- Hang up immediately.
2. Block the Number
- Use your phone’s built-in spam blocking features.
- Consider apps like Truecaller, Hiya, or your mobile provider’s own spam-blocking services.
3. Report the Call
- Use the ICO’s nuisance calls reporting tool or report to Ofcom.
- Share your experience on forums like WhoCalledMe or Scambook to warn others.
4. Stay Informed
- Watch out for evolving scam tactics.
- Sign up for alerts from UK Action Fraud or your mobile provider.
Statistics: Spam Trends in 2025
Recent data from telecom watchdogs shows that:
- Over 33 million spam calls were made in the UK each month in 2025.
- 48% of reported calls involved financial scams.
- The use of VoIP and caller ID spoofing has surged, making it harder to distinguish fake from real calls.
- Mobile numbers like 07441107428 are now increasingly used for missed call fraud and callback traps.
Final Thoughts
Staying vigilant in today’s digital communication age is more important than ever. While regulatory bodies continue to crack down on illegal call centers and scammers, many still slip through the cracks. By spreading awareness and staying cautious, you help protect not only yourself but also your community.
The numbers listed above represent just a sample of the most reported cases. New numbers emerge every day. If you encounter any suspicious or unwanted calls, make it a habit to report them and block the source.
