Protectyourbubble.com found the top 20 UK mobile phone theft hotspots by comparing the number of theft claims to a national average.
The figures revealed that people in Brighton are 4.4 times more likely to have their phones stolen while those in Manchester are 3.8 times more likely.
Mobile phone owners in Leicester and Belfast are three and a half times more at risk of falling foul of thieves, while Londoners are 3.4 times more likely to be victims.
Claims data from Protectyourbubble.com also reveals that women should be especially cautious as females (53%) are more likely than men (47%) to have their mobiles stolen.
Police figures suggest that as many as 300,000 phones are stolen each year from across the UK as a whole.
However, Protectyourbubble.com believes that 63% of people are carrying uninsured mobile phones, and are less likely to report them if they are stolen. As such the actual number of phones stolen could be much higher.
Indeed, with 92% of Britons owning a mobile phone, mobile theft remains one of the most reported crimes in the country.
Stephen Ebbett, director of Protectyourbubble.com, said: “Mobile phones are easy pickings for thieves who know that people talking or messaging are distracted and unaware of what’s going on around them. A big concern is that claims from people who have had phones snatched by thieves who have mounted the pavement on bicycles and motorcycles are growing.
“Being a victim of mobile phone crime can be distressing, inconvenient and the phone expensive to replace, particularly smartphones which can cost upwards of £400. Many expensive handsets come ‘free’ with monthly contracts, so people may not be aware of their true value. But when they try to buy a replacement they soon realise the true cost of them."