In an increasingly connected digital age, spam phone calls have become a persistent issue for UK residents. Whether it’s fake delivery alerts, fraudulent tax claims, or impersonations of trusted institutions, these calls can range from mildly annoying to dangerously deceptive. In 2025, the number of spam and scam calls continues to rise, prompting consumers to be more vigilant than ever.
To help people recognize and avoid these nuisances, we’ve compiled a list of the top reported spam phone numbers in the UK for 2025. These numbers have been flagged multiple times by users for various types of spam and scam activities.
Table: Top Reported Spam Phone Numbers in the UK (2025)
| Phone Number | Type of Spam/Scam | Description | User Reports |
| 0330 124 0409 | Bank Impersonation Scam | Claims to be from a major UK bank | 2,300+ |
| 07418 374068 | HMRC Tax Scam | Threatens legal action for unpaid taxes | 1,950+ |
| 0131 287 3387 | Fake Energy Supplier | Tries to switch energy providers | 1,700+ |
| 0122 523 4277 | Insurance Renewal Scam | Claims vehicle insurance needs updating | 1,400+ |
| 0330 124 4031 | Amazon Prime Scam | Fake subscription charges | 1,200+ |
| 01704 610003 | Missed Delivery Scam | Fake courier asking for payment | 1,000+ |
| 07418 374627 | Phishing SMS Follow-up | Follows up on SMS phishing attempts | 900+ |
| 0288 248 0137 | Loan Offer Fraud | Fake loan approvals and demands fees | 800+ |
| 0161 520 2425 | Tech Support Scam | Claims your computer has viruses | 700+ |
| 0203 608 1936 | Crypto Investment Scam | Offers fake Bitcoin investment tips | 650+ |
0330 124 0409 – Bank Impersonation Scam
This number has been heavily reported by users who received calls claiming to be from their bank—most often from HSBC, Lloyds, or Barclays. The scammer typically informs the victim of “suspicious activity” on their account and urges them to take immediate action, such as moving their money to a “safe account.”
Common Tactics:
- Mimicking official bank call tones and language.
- Urging urgency: “Your account will be frozen in 24 hours.”
- Asking for sort codes, passwords, or to install remote access software.
Advice:
Always hang up and call your bank directly using the official number on their website.
07418 374068 – HMRC Tax Scam
One of the more aggressive scams on this list, this number is frequently used by fraudsters pretending to be from HMRC. Victims are told they owe back taxes and that legal action or arrest is imminent unless they make an immediate payment via bank transfer or gift cards.
Red Flags:
- Robotic voice messages.
- Demands for payment through untraceable methods.
- Threats of arrest or police involvement.
Reality:
HMRC will never threaten you over the phone or ask for payment via gift cards.
0131 287 3387 – Fake Energy Supplier Call
Posing as representatives from energy companies like British Gas or EDF, callers from this number push you to switch your energy provider, promising deep discounts or immediate cost savings. In reality, it’s a tactic to gain your personal information for fraudulent contracts or identity theft.
What They Say:
- “We’re offering exclusive fixed-rate tariffs for new customers.”
- “Your meter reading is overdue—we’ll help you update it now.”
Stay Safe:
Check directly with your supplier. Never give out your account number or address over the phone without verification.
Check Recent Spamming Numbers:
1258588702: : 2030340147: : 2870024945: : 2034752474: : 1484599876
0122 523 4277 – Car Insurance Renewal Scam
If you’ve ever owned a car, you’ve probably gotten a call like this. This number is notorious for targeting vehicle owners by pretending to represent insurance companies like Aviva or Admiral. They claim your insurance is due for renewal and attempt to extract payment details.
Techniques Used:
- Referencing outdated or incorrect vehicle details.
- Posing as a continuation of a “policy quote you previously requested.”
- Pressuring users to act fast due to “expiring offers.”
Expert Tip:
Genuine insurers rarely cold call—always contact your provider independently.
0330 124 4031 – Amazon Prime Scam
A popular scam since 2020, this number continues to harass people under the guise of Amazon Prime customer service. The caller claims there’s an unauthorized charge on your account, often around £79.99, and offers to “help cancel” it by taking your card details.
Typical Script:
- “Press 1 to speak with our billing department.”
- “You’ve been charged for Prime—was this you?”
Don’t Be Fooled:
Amazon does not make unsolicited phone calls about subscription fees.
01704 610003 – Missed Delivery Scam
This number poses as Royal Mail, Hermes, or DPD, warning that you’ve missed a delivery and need to pay a small redelivery fee. If you engage, you’re redirected to phishing websites or asked to confirm sensitive information.
What Happens:
- You receive an SMS first, followed by a call.
- The call asks for a small payment—usually £1.50 to £2.99.
Real Delivery Companies:
They don’t ask for payment by phone. Always check tracking numbers through official apps.
07418 374627 – Phishing SMS Follow-up Call
This number often follows a phishing text with a fake link to “track a package” or “verify your account.” If you clicked the link and entered any information, you might receive a follow-up call from this number asking for more personal details under false pretenses.
Key Tactics:
- Claiming they’re “verifying your identity.”
- Asking for your full address or banking details.
Rule of Thumb:
If you get an unexpected call after a strange text, it’s likely a scam.
0288 248 0137 – Loan Offer Fraud
Desperate for a quick loan? That’s what scammers hope when they call from this number. They offer pre-approved loans but require a “processing fee” or an upfront deposit to be paid before the funds are “released.”
Common Deceptions:
- Saying you’ve been “guaranteed” a loan of £2,000 to £10,000.
- Requesting fees via bank transfer, PayPal, or prepaid cards.
Reality Check:
No legitimate lender will ask for money upfront.
0161 520 2425 – Tech Support Scam
Pretending to be from Microsoft or BT, scammers calling from this Manchester-based number claim your computer has been hacked or infected with malware. They ask you to install software like AnyDesk or TeamViewer to “fix” it—giving them full remote access instead.
Their Script:
- “We’ve noticed unusual activity from your IP address.”
- “We can clean your system remotely—just follow these steps.”
Never Do This:
No tech company will call you out of the blue to fix your PC.
0203 608 1936 – Crypto Investment Scam
This number has been used by callers promoting “once-in-a-lifetime” investment opportunities in cryptocurrency. Victims are encouraged to invest large sums with promises of daily returns. In many cases, these scammers even create fake trading dashboards to show fake profits.
Their Tricks:
- Posing as “investment consultants” from big firms.
- Pressuring victims into investing immediately.
- Sending links to fake trading websites.
Warning:
Genuine crypto platforms do not cold-call customers.
How to Protect Yourself from Spam & Scam Calls
While these ten numbers have been reported repeatedly, scammers are constantly rotating through new numbers and methods. Here are some steps to protect yourself:
Top Safety Tips:
- Don’t answer unknown numbers. Let them go to voicemail.
- Never share personal or financial information unless you initiated the call.
- Install call-blocking apps like Truecaller or Hiya.
- Report spam numbers to Ofcom or Action Fraud.
- Register your number with the Telephone Preference Service (TPS).
What to Do If You’ve Been Targeted
If you’ve already interacted with any of these numbers or shared sensitive details:
- Contact your bank immediately and explain the situation.
- Change passwords for online accounts if you gave out credentials.
- Scan your device for malware if you downloaded any files or software.
- Report the incident to Action Fraud (https://www.actionfraud.police.uk/).
- Stay informed and educate family and friends, especially the elderly.
Final Thoughts
Scam and spam phone calls are not just an inconvenience—they are a serious security threat. As fraudsters become more sophisticated in 2025, it’s crucial for UK residents to stay one step ahead by being informed and cautious.
The numbers listed here represent just a snapshot of the wider issue, but by knowing what to watch out for, you can avoid falling victim. If in doubt—hang up, verify, and report.
