You have no doubt seen it, and each time you do, you're being put in more danger.
Figures collated by a car insurance company found that thousands of people still make calls from behind the wheel - something which can have deadly consequences.
You can see the full report from Dan Ashby below.
More top news
Officers were called to an address in Shildon in the early hours of Saturday morning and also to two other addresses in Darlington.
Ethan Mountain is accused of stabbing Joan Hoggett while she was working at the One Stop Shop on Sea Road in Sunderland on September 5.
A man has been charged with attempted murder after a robbery at a shop in North Ormesby on Friday December 14.