In the digital age, unwanted calls and scam attempts have become more sophisticated—and unfortunately, more frequent. While spam and scam calls have been a global nuisance for years, 2025 has seen a surge in UK residents reporting suspicious numbers. These calls range from aggressive sales tactics to convincing impersonation scams.
In this article, we’ll look at some of the most reported spam phone numbers in the UK this year, based on public complaint data and user feedback. We’ll also explain what kind of scams are linked to each number and offer tips on how to protect yourself.
Table: Top Spam Phone Numbers Reported in the UK (2025)
| Phone Number | Type of Spam/Scam | Description |
| 01623 205017 | Amazon/Parcel Scam | Claims to be from Amazon or about a parcel |
| 02038 597221 | Investment Scam | Fake investment opportunities |
| 02030 055852 | HMRC/Tax Scam | Pretends to be HMRC threatening arrest |
| 02080 584107 | Energy Bill Scam | Fake energy refunds or bill threats |
| 01216 303064 | Bank Fraud Alert Scam | Claims to be from your bank fraud department |
| 01904 904162 | Insurance Scam | Unsolicited car accident or PPI claims |
| 03301 240411 | Crypto Investment Scam | Promises high returns from crypto |
| 01234 247239 | Tech Support Scam | Pretends to fix viruses on your computer |
| 01388 436857 | Prize/Competition Scam | Fake lottery or prize win |
| 03316 309077 | Survey/Marketing Scam | Pushy surveys that ask for personal info |
| 0161 884 1854 | Broadband Scam | Claims your internet will be cut off |
Detailed Breakdown of the Most Reported UK Spam Numbers
Let’s explore each number in more detail, based on hundreds of user reports and patterns commonly associated with each scam type.
1. 01623 205017 – Amazon or Parcel Delivery Scam
Many users have reported receiving calls from this number claiming to be from Amazon or a parcel delivery company. The automated voice typically warns of a problem with a recent order or missed delivery.
- Tactics: The caller may ask you to “press 1” to connect to an agent. Once you do, you’re often transferred to someone impersonating Amazon staff who tries to obtain your account or card details.
- Advice: Hang up immediately. If unsure, log into your actual Amazon account to check for alerts.
2. 02038 597221 – Fake Investment Opportunities
This number has been flagged numerous times for offering fraudulent investment schemes, often relating to cryptocurrency, stocks, or foreign exchange trading.
- Tactics: The scammer may pose as a financial advisor promising high returns or exclusive investment opportunities. They usually ask for a deposit to “activate your account.”
- Advice: Always verify with the FCA (Financial Conduct Authority) before investing. Reputable companies won’t cold call.
3. 02030 055852 – HMRC Tax Scam
Perhaps one of the most dangerous scams, calls from this number claim to be from HMRC and often threaten legal action or arrest due to “unpaid taxes.”
- Tactics: Victims are pressured to pay immediately via bank transfer, gift cards, or cryptocurrency. Some calls use automated messages to increase fear.
- Advice: HMRC does not threaten arrest over the phone. Report such calls to Action Fraud.
4. 02080 584107 – Energy Company Impersonation
This number is associated with scammers pretending to be from energy providers, offering “refunds” or claiming your bill is overdue.
- Tactics: They may ask for your bank details to “process a refund” or insist that your service will be cut off unless payment is made.
- Advice: Never give out your financial information. Contact your energy company directly using official channels.
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5. 01216 303064 – Bank Fraud Alert Scam
Many people have received fake alerts from this number, pretending to be from bank fraud departments.
- Tactics: You’ll be told that there is suspicious activity on your account. The scammer might ask you to move money to a “safe account.”
- Advice: Your bank will never ask you to move money elsewhere. Hang up and call your bank directly.
6. 01904 904162 – Fake Insurance or PPI Claims
Calls from this number often involve someone claiming you’re owed compensation for a car accident or PPI refund.
- Tactics: The scammer might already have some of your details to sound convincing. They will push you to confirm personal or banking info.
- Advice: Be skeptical of any “unexpected refund” claims, especially if you’ve never initiated a request.
7. 03301 240411 – Cryptocurrency Investment Scam
This number is linked to a cryptocurrency trading scam, where callers claim to be advisors helping you invest in Bitcoin or other digital assets.
- Tactics: They’ll ask for an initial investment and encourage you to use shady platforms that they control. Some even show fake dashboards.
- Advice: Only trade through licensed exchanges and never respond to cold calls about investments.
8. 01234 247239 – Tech Support Fraud
Numerous reports link this number to fake technical support teams, often impersonating Microsoft or your internet provider.
- Tactics: You’ll be told your computer has a virus or that your connection is compromised. They’ll then request remote access.
- Advice: Never allow remote access unless you’ve initiated the support call yourself.
9. 01388 436857 – Prize or Competition Scam
This number is part of a classic “you’ve won a prize” scam.
- Tactics: The caller claims you’ve won a contest or lottery and asks for a “processing fee” or personal details to claim it.
- Advice: Legitimate prizes don’t require payment upfront. If it sounds too good to be true, it is.
10. 03316 309077 – Survey and Marketing Scam
This number often starts with an innocent survey or poll, but quickly turns invasive.
- Tactics: The survey questions may seem harmless, but gradually gather sensitive information. Some report follow-up calls from high-pressure sales teams.
- Advice: Don’t give personal or financial info in unsolicited surveys. If unsure, hang up.
11. 0161 884 1854 – Broadband Disconnection Threat
This scam involves someone claiming your internet will be disconnected due to security issues or unpaid bills.
- Tactics: Posing as providers like BT, Sky, or Virgin, they ask you to verify your account or make a payment to avoid service loss.
- Advice: Internet providers will notify you in writing before disconnection. Always confirm with your provider directly.
Why Are Spam Calls Increasing in 2025?
Several factors contribute to the rise in spam and scam calls:
- Spoofing Technology: Scammers can fake UK phone numbers to appear local and trustworthy.
- Data Breaches: Personal data leaks make it easier for scammers to target individuals more convincingly.
- Cost-Efficient for Scammers: Automated robocalls are cheap to deploy at scale.
- Social Engineering: Scammers adapt quickly, using current events (tax season, energy crisis, etc.) to tailor their messages.
How to Protect Yourself from Scam Calls
Here are some practical steps to avoid falling victim to these scams:
1. Use a Call Blocking App
Apps like Truecaller, Hiya, and RoboKiller can identify and block spam numbers automatically.
2. Register with TPS
Add your number to the Telephone Preference Service (TPS) to reduce legitimate telemarketing calls: www.tpsonline.org.uk
3. Never Share Personal Info Over the Phone
If someone calls you unexpectedly asking for sensitive information, hang up.
4. Report Suspicious Calls
Use Action Fraud (www.actionfraud.police.uk) or call 0300 123 2040 to report scams.
5. Educate Friends and Family
Older people are common targets. Make sure your loved ones know about current scams.
Summary
Spam and scam calls continue to evolve in the UK, and 2025 has shown just how bold and convincing these scammers can be. From fake HMRC threats to investment traps, their tactics are growing increasingly sophisticated. By staying informed about the top reported numbers like those listed in this article, and taking preventative steps, you can protect yourself and your community.
Have you received a suspicious call lately? Don’t keep it to yourself—report it, warn others, and help stop these scammers in their tracks.
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