Are you living in one of London's mobile blackspots?

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We all know the feeling - you go to use your phone only to find there's no signal. On the train - or at home, it's a bigger problem in London than you might imagine.

According to new research, a third of Londoners are plagued by blackspots.

After spending 6 weeks collecting and analysing data from inside London homes Global Wireless Solutions found:

  • 35% of Londoners have some kind of mobile blackspot in their home

  • 29% told pollsters they 'regularly' have issues making and/or receiving mobile calls from home

  • More than 40% of the Londoners polled by GWS for its survey said that mobile data connectivity issues had 'definitely contributed' to their decision to switch operators

You can also find a version of the map online here.