Millions of scam calls from abroad to be blocked under new crackdown

29 July 2024, 10:24

A common tactic used by criminals to defraud victims is to imitate or ‘spoof’ phone numbers from a trusted person (PA)
Scam calls crackdown. Picture: PA

Phone companies will now have to identify and block calls from abroad which falsely display a UK telephone number as a ‘presentation number’.

Millions more scam calls from abroad, which use spoofed UK landline numbers, are to be blocked under a new crackdown.

Phone companies will now have to identify and block calls from abroad which falsely display a UK telephone number as a “presentation number” under strengthened guidance from Ofcom.

A common tactic used by criminals to defraud victims is to imitate or “spoof” phone numbers from a trusted person, organisation, or government department, so their calls are more likely to be answered.

Fraudsters based abroad often spoof UK numbers, knowing people are more likely to answer them than if an unknown international number is displayed.

Ofcom said evidence suggested that the new blocking measures would have a significant impact on protecting the public from scam calls.

BT had already prevented up to one million calls per day from entering its network within the first month of implementing the measures on a voluntary basis, and Ofcom said its guidance would ensure it became standard practice across the industry.

The regulator is also seeking views on the effectiveness, costs, risks and timescales of different technical solutions to tackle scam calls from abroad which spoof UK mobile numbers.

Its current rules do not require operators to block all calls from abroad with +447 numbers in order to ensure that genuine calls from UK callers roaming abroad get through.

Ofcom’s latest research shows many consumers are still receiving suspicious calls and texts, but there are signs of a decline, it said.

In 2024, just under half of UK landline users (48%) said they had received a suspicious call in the last three months, down from 56% in 2021.

Mobile users also reported a decrease in receiving suspicious calls, from 45% to 39% over the same period.

Mobile users are most likely to receive a suspicious text message, although this has also fallen from 74% in 2021 to 56% in 2024.

Lindsey Fussell, Ofcom’s group director for networks and communications, said: “Criminals who defraud people by exploiting phone networks cause huge distress and financial harm to their victims.

“While there’s encouraging signs that scam calls and texts are declining, they remain widespread and we’re keeping our foot to the throttle to find new and innovative ways to tackle the problem.

“Under our strengthened industry guidance, millions more scam calls from abroad which use spoofed UK landline numbers will be blocked, with similar plans underway for calls which spoof UK mobile numbers.

“We’re also challenging the industry and other interested parties to provide evidence on the best solutions to tackle mobile messaging scams.”

By Press Association

More Technology News

See more More Technology News

Children with multiple long-term health issues undergo severe emotional stress at the same time as they are trying to cope with the physical challenges of their conditions, a study has found (Dominic

Children’s social media activity ‘highlights stress of living with health issue’

Scientists at Sheffield Hallam university have developed a new technique which they describe as a "powerful double weapon" to prevent cancer patients losing their hair during chemotherapy.

New technique hailed as ‘powerful double weapon’ against chemotherapy hair loss

Elon Musk

Elon Musk says his new AI model ‘better than PhD level in everything’

President of France Emmanuel Macron with Sir Keir Starmer

UK and France agree ‘Entente Technologique’ to help protect infrastructure

SHANGHAI, CHINA - JUNE 18, 2025 - The Nvidia logo displayed on a smartphone in Shanghai, China on June 18, 2025. (Photo by CFOTO/Sipa USA)

Nvidia becomes world’s most valuable listed company at $4trn

Surgical Robot

Robot performs realistic surgery ‘with 100% accuracy’

Peter Kyle outside the BBC smiling

Government makes deal with Google to provide free tech for UK public services

Former Wimbledon line judge Pauline Eyre

Wimbledon technology change ‘has turned officials into glorified butlers’

The Grok X AI logo is displayed on a mobile phone with Grok seen in the background

Elon Musk's Grok chatbot forced to delete a slew of posts after praising Adolf Hitler

Linda Yaccarino, chief executive officer (CEO) of X Corp. attends the ceremony for the signing of S.146, The TAKE IT DOWN Act at the White House in Washington, DC.

X CEO quits just two years after she was hired by Elon Musk

Exhibitor Meta showcasing the Ray-Ban Meta AI glasses at the annual British Educational Training and Technology conference at ExCeL London

Meta opens Cambridge lab as part of AI glasses expansion

Palantir NHS contract

Doctors against Palantir’s NHS software put ‘ideology over patient interest’

A woman looking stressed

More than half of people who acted on social media financial advice ‘lost money’

CyberUK conference

Learn from ‘our Scandinavian neighbours’ about crises and war, ministers urged

Marks and Spencer cyber attack

M&S cyber attackers may have worked with Asia-based DragonForce, MPs hear

The research team was led by scientists at the Smithsonian's National Museum of Natural History in Washington DC.

Scientists discover 200 million year-old flying reptile species