Top Reported Spam Phone Numbers In UK (2025)

Spam calls continue to be a significant issue for phone users, particularly in the UK. In 2025, scam calls, cold calls, and other unwanted communications remain a major concern for many, often resulting in frustration and privacy breaches. If you’ve received calls from unfamiliar numbers, there’s a high chance they are associated with spam or scam activities. Identifying and blocking these numbers promptly can help you protect your personal information and avoid falling victim to fraud.

In this article, we will discuss some of the most frequently reported spam phone numbers in the UK for 2025, including details on the calls they typically make, how to identify them, and what you can do to protect yourself. We’ve included a table with key information for each of the numbers and provided helpful tips on how to handle spam calls.

Quick Overview of Spam Calls in the UK

Spam phone numbers in the UK primarily involve fraudulent activities, such as phishing, identity theft, unsolicited marketing, and scams promising unrealistically high returns. Many of these calls appear to be from legitimate businesses or even government bodies, making it difficult to distinguish between spam and real communication. However, there are often subtle signs—such as unfamiliar area codes, long-winded automated messages, or requests for personal details—that can signal a scam call.

Here’s a quick look at the most common types of spam calls:

Phishing Calls: Calls pretending to be from banks, government agencies, or companies you do business with, asking for sensitive information like passwords or account numbers.
Cold Calls: Unsolicited calls from businesses offering services, often in violation of Do Not Call lists.
Debt Collection Scams: Fraudsters pretending to be debt collection agencies, threatening legal action unless immediate payment is made.

Below, we’ve identified and provided more details about several spam phone numbers that have been frequently reported by UK residents in 2025.

Table of Reported Spam Numbers in the UK (2025)

Phone Number	Area Code	Type of Spam	Common Scam Activity	Reported By
01743839873	Shropshire	Robocall	Fraudulent insurance offers	WhoCalledMe
01616601030	Manchester	Cold Call	Unsolicited marketing	TrueCaller
01289222041	Lancashire	Phishing Call	Bank fraud attempts	Ofcom
01952446550	Lancashire	Robocall	Fake charity donations	TPS
01205386545	Essex	Debt Collection	False claims of overdue payments	ICO
01389493417	Worcestershire	Phishing Call	Scam related to tax refunds	WhoCalledMe
07418374545	Mobile	SMS Spam	Spam text messages offering loans	Ofcom
01700663675	Wrexham	Robocall	Claims of prize winnings	TrueCaller
01782580403	Stoke-on-Trent	Cold Call	Unsolicited marketing offers	WhoCalledMe
01618504320	Manchester	Scam Call	Fake technical support services	TPS

01743839873: Fraudulent Insurance Offers

The number 01743839873 is often reported for making fraudulent insurance offers. These calls typically claim to offer discounted car or home insurance, but they’re nothing more than a scam to gather personal details for identity theft. These types of scams are notorious for using aggressive tactics, such as pressuring you to act quickly or threatening that you’ll lose an amazing deal if you don’t provide your information immediately.

Key Points:

Area Code: Shropshire
Scam Type: Fraudulent insurance offers
Reported By: WhoCalledMe

What to Do:

If you receive a call from this number, do not engage with the caller. Hang up immediately, and consider reporting the number to local authorities or a phone-blocking service. You can also block the number on your phone to avoid future calls.

01616601030: Unsolicited Marketing Calls

Another commonly reported spam number is 01616601030, which is associated with unsolicited marketing calls. This number often belongs to telemarketing firms that ignore the UK’s privacy laws, including those that mandate that you can opt out of receiving such calls. These marketing calls are persistent, intrusive, and often come during inconvenient hours, making them a significant annoyance for many people.

Key Points:

Area Code: Manchester
Scam Type: Cold calls for marketing
Reported By: TrueCaller

What to Do:

If you’re not interested in the product or service being pitched, simply hang up. You can also register with the Telephone Preference Service (TPS), a free service that allows you to opt out of unsolicited marketing calls.

01289222041: Bank Fraud Attempts

The number 01289222041 has been flagged for bank fraud attempts. Scammers often use numbers like this to pose as representatives of banks, claiming that your account has been compromised or that there is a problem with your account. They may ask for sensitive information such as your bank details, PIN, or login credentials.

Key Points:

Area Code: Lancashire
Scam Type: Phishing (bank fraud)
Reported By: Ofcom

What to Do:

Always be cautious when receiving unsolicited calls asking for sensitive information. Hang up immediately if the caller asks for personal details and contact your bank directly using the official contact details from their website.

01952446550: Fake Charity Donations

If you receive a call from 01952446550, it’s important to be cautious as it’s a number linked to fake charity donations. Scammers may pretend to represent well-known charities, asking for donations over the phone. These calls may sound convincing, but the goal is to steal your money under the guise of helping a cause.

Key Points:

Area Code: Lancashire
Scam Type: Fake charity donations
Reported By: TPS

What to Do:

Do not give out any personal information or donate over the phone. If you wish to donate to a charity, contact them directly through their official website or a known fundraising platform.

01205386545: Debt Collection Scam

The number 01205386545 is often used in debt collection scams. The caller might claim that you owe money and threaten legal action if you do not pay immediately. These scammers often prey on people’s fears, creating a sense of urgency to pressure them into handing over their money or personal details.

Key Points:

Area Code: Essex
Scam Type: Debt collection scam
Reported By: ICO

What to Do:

Never give out payment details or personal information over the phone unless you are absolutely sure of the caller’s legitimacy. If you believe you don’t owe any money, hang up and contact your debt provider directly.

01389493417: Tax Refund Scam

The number 01389493417 is linked to tax refund scams, where callers claim to offer refunds on taxes that you allegedly overpaid. They might ask for your bank account details or other personal information to process the refund, which, in reality, is a scam to steal your money or identity.

Key Points:

Area Code: Worcestershire
Scam Type: Tax refund scam
Reported By: WhoCalledMe

What to Do:

If you receive such a call, hang up immediately. HMRC will never contact you by phone to offer tax refunds. Report the incident to the HMRC and consider blocking the number.

07418374545: SMS Spam Offering Loans

07418374545 is another commonly reported number linked to SMS spam. These spam messages often promise easy loans or financial assistance but are nothing more than a scam designed to collect your financial information or charge hidden fees. These types of scams can often target vulnerable individuals who are desperate for quick cash.

Key Points:

Area Code: Mobile
Scam Type: SMS loan spam
Reported By: Ofcom

What to Do:

Do not respond to unsolicited text messages offering loans or financial services. If the message contains a link, do not click on it. Report the number to your mobile service provider.

01700663675: Prize Winning Scam

The number 01700663675 is associated with a common scam that tells recipients they’ve won a prize, typically a large sum of money or a luxury item. However, the scammer will ask for a fee to process the prize or personal information to claim it.

Key Points:

Area Code: Wrexham
Scam Type: Prize-winning scam
Reported By: TrueCaller

What to Do:

If you receive such a call, remember that legitimate prize competitions don’t require you to pay anything upfront. Hang up immediately and report the call to the relevant authorities.

01782580403: Unsolicited Marketing Offers

The number 01782580403 is often used for unsolicited marketing calls offering a wide range of services, from energy deals to insurance. These calls are typically not requested by the person receiving them, and many people find them intrusive and annoying.

Key Points:

Area Code: Stoke-on-Trent
Scam Type: Unsolicited marketing
Reported By: WhoCalledMe

What to Do:

You can block the number directly on your phone or report it to the Telephone Preference Service (TPS) if you’re registered with them. They can help stop future marketing calls.

01618504320: Fake Technical Support Scam

01618504320 is associated with a fake technical support scam. Scammers may claim to be from companies like Microsoft, offering to fix supposed issues with your computer. They often ask for remote access to your device, and in some cases, will ask for payment for non-existent repairs.

Key Points:

Area Code: Manchester
Scam Type: Fake technical support scam
Reported By: TPS

What to Do:

Do not give control of your computer to anyone you do not trust. If you suspect a technical support scam, report it to the Action Fraud website.

Conclusion: Protecting Yourself from Spam Calls

Spam phone numbers are a growing problem in the UK, but by staying vigilant, reporting suspicious numbers, and using call-blocking services, you can protect yourself from scams and fraud. If you receive calls from any of the numbers mentioned in this article, it’s crucial to hang up immediately and report the number to the relevant authorities.

Take action today by blocking these numbers and registering with the Telephone Preference Service (TPS) to reduce the likelihood of receiving unsolicited calls in the future. Always remember, if it sounds too good to be true, it probably is!