In the digital age, mobile phones have become an integral part of our lives, allowing us to communicate instantly with anyone around the world. However, this convenience comes with its own set of challenges, and one of the most frustrating issues many UK residents face is unsolicited spam calls. These spam calls often come from unknown or suspicious phone numbers, and while some are harmless, many are attempts to scam or trick individuals into revealing personal information.
Spam calls are typically made by telemarketers, fraudsters, or automated robocalls, and they can lead to significant inconvenience and financial loss if not handled properly. In the UK, telecom regulators and consumer protection groups work diligently to combat this issue, but these calls continue to persist in large numbers.
In this article, we will explore some of the most frequently reported spam phone numbers in the UK for 2025. We will dive into details about these numbers, the nature of the calls they make, and tips on how to handle such unsolicited communications.
Why Are Spam Calls a Growing Problem in the UK?
Spam calls, also known as nuisance calls, have been on the rise in the UK for several years, and they show no signs of slowing down. These calls can be related to a variety of services, ranging from fake prize wins to fraudulent attempts to steal money or personal information. According to a report from the UK’s Information Commissioner’s Office (ICO), more than 50% of mobile phone users have received spam calls at least once, with many people receiving them regularly.
One of the main reasons for the increase in spam calls is the rise of robocalling technology, which allows scammers to place thousands of calls per minute with minimal effort. These automated systems dial random numbers, and when the call is answered, a recorded message plays, attempting to deceive the recipient into taking action, such as providing sensitive personal details or transferring money.
The UK government and telecom companies have implemented various measures to reduce the number of spam calls, such as blocking international and unfamiliar numbers and encouraging users to report spam calls. However, despite these efforts, spam calls remain a major nuisance.
Let’s take a closer look at some of the most frequently reported spam phone numbers in the UK, as of 2025.
Top Reported Spam Numbers in the UK (2025)
| Phone Number | Nature of the Calls | Frequency of Reports | Notes |
| 01480 710048 | Likely a marketing or debt collection call | High | Often reported as unsolicited and persistent |
| 03316301300 | Robocall, possibly related to phishing or fake offers | Very High | Users report aggressive sales tactics |
| 03001312110 | Financial services scam or fake government agency call | High | Commonly used for fake tax or government-related scams |
| 03316303320 | Robocall or survey-related spam | Moderate | Often attempting to sell products or services |
| 0345 300 4454 | Unsolicited sales call, possibly a financial product | High | Calls sometimes masquerade as official or bank-related |
| 01615202018 | Potential scam, could be debt collection or marketing | Moderate | Calls often go unanswered if picked up |
| 02036080245 | Robocall for an unsolicited survey or promotional offer | High | Frequently reported for pushing financial products |
| 03301591234 | Likely a marketing call or fraudulent attempt | High | Users report repetitive calls and nuisance behavior |
| 02038960349 | Fake service offers or scam attempts | Moderate | Often linked to fraudulent tech support offers |
| 0121 652 0182 | Debt collection or insurance sales | Moderate | Regularly flagged as a scam or nuisance number |
01480 710048
The phone number 01480 710048 has gained notoriety in recent years due to its frequent reports of spam calls. It is commonly associated with unsolicited marketing calls or debt collection agencies, though the exact nature of the calls remains unclear in some instances.
People have reported receiving calls from this number even when they haven’t been in contact with any companies offering related services. It’s often described as an aggressive telemarketing call, with the caller either trying to push a product or service or demanding immediate action, such as providing personal details or financial information.
How to Handle:
- Do not answer if you are not expecting a call from this number.
- If you answer and the call seems suspicious, hang up immediately.
- Block the number and report it to your phone provider.
03316301300
03316301300 is a frequently reported number that’s believed to be involved in robocalling, often with phishing or fraudulent purposes. The calls made from this number are typically automated, and the messages often mention “urgent matters” or “important information” that requires the recipient’s immediate attention.
Many reports indicate that this number is used for fake offers or scams where the caller requests sensitive information. These types of calls can be particularly dangerous, as they are designed to appear legitimate, which can trick people into providing personal details.
How to Handle:
- Do not engage with any automated messages.
- If the call claims to be from an official organization, hang up and call the official number listed on their website to verify.
- Report the number to the relevant authorities.
03001312110
03001312110 is associated with financial services fraud or fake government agency calls, which are common types of spam in the UK. People often report receiving messages claiming to be from the HM Revenue and Customs (HMRC) or other government-related services, asking for payments or offering assistance with tax-related matters.
Such calls often involve a high level of urgency, with threats of legal action or arrest if the recipient does not respond or make a payment.
How to Handle:
- Always verify with the actual agency before responding.
- Hang up and call the legitimate customer service number for the respective organization to check if they made contact with you.
- Report the number if you receive a suspicious call.
03316303320
Check Recent Spamming Numbers:
03332421450: : 01482680397: :
: :
: : 01289222041
This number is another frequent culprit in robocalls, often related to surveys or spam related to promotions. While not always malicious, the calls from 03316303320 are often persistent and aggressive, trying to sell a wide range of products or services. These could range from insurance products to fake surveys that ask for personal information in exchange for a prize or gift card.
How to Handle:
- Block the number if you’re repeatedly contacted.
- Avoid providing any personal information, even if they offer a prize or discount.
- If it’s a legitimate survey, ask how they got your number and if they have your consent to call.
0345 300 4454
The number 0345 300 4454 is another commonly reported spam number, often associated with unsolicited calls trying to sell financial products or services. Many users report that the calls pretend to be from banks or financial institutions, and when people answer, they are offered loans, credit cards, or insurance products.
These calls may seem official, but they are often aimed at gathering personal data or selling unnecessary financial products to vulnerable people.
How to Handle:
- Do not disclose any personal or financial information.
- Hang up and verify the caller by contacting your bank or financial institution directly.
- Report it to your provider or the relevant authority.
01615202018
Calls from 01615202018 are believed to be related to debt collection agencies or marketing firms. While some calls are automated, others involve a human caller attempting to convince you to settle debts or sign up for various services.
Reports often mention that these calls can be intimidating, with callers pushing for immediate action. The number is also sometimes used for marketing campaigns related to insurance or financial services.
How to Handle:
- Do not engage with the caller unless you are sure of the legitimacy.
- If you owe no debt or are not interested in the service, block the number.
- Report the number to the authorities.
02036080245
02036080245 is another number frequently reported for robocalls related to unsolicited surveys or promotional offers. Many users have mentioned that the calls are aimed at selling a wide variety of products, including financial services, insurance, and more.
Calls from this number often come in quick succession, and recipients are urged to act fast, which is a common tactic used in scam calls.
How to Handle:
- Block the number as soon as possible.
- If the call claims to be from an official company, call their customer service directly to verify.
- Report it to your telecom provider.
03301591234
This number is another one associated with persistent marketing calls or scams. People have reported that it frequently calls to promote fake services or attempts to convince individuals to provide sensitive personal information. It is often linked to fraudulent activities such as fake insurance offers or prize scams.
How to Handle:
- Avoid picking up the call if you don’t recognize the number.
- Block the number if it continues to call after you’ve declined their offers.
- Always report the number to help protect others.
02038960349
02038960349 is regularly flagged as a spam number linked to fraudulent service offers. Many complaints suggest that the calls involve fake tech support, promising to fix issues with your computer or offering discounts on software that you don’t need.
How to Handle:
- Hang up immediately if you are contacted.
- Never provide access to your devices or share payment details.
- Report it to your telecom provider.
0121 652 0182
0121 652 0182 is often associated with calls regarding insurance sales or debt collection. These calls tend to pressure individuals into providing personal details or making decisions quickly without time to think, which is a classic sign of a scam attempt.
How to Handle:
- Block the number and report it to the authorities if it continues.
- Do not engage in the conversation if you feel uncomfortable.
Conclusion
Spam phone calls are a pervasive issue in the UK, and as we move further into 2025, they continue to be a significant source of annoyance for many mobile phone users. Whether they are robocalls, marketing calls, or fraudulent attempts, they can lead to emotional stress and financial losses if not properly managed.
By being aware of common spam numbers like the ones listed above and following best practices for handling unsolicited calls, UK residents can better protect themselves from falling victim to scams. Always remain cautious when answering calls from unknown or suspicious numbers, and don’t hesitate to report any spam calls you receive to your mobile provider or relevant authorities. Stay vigilant, and together, we can reduce the impact of these nuisance calls on our daily lives.
