British Prime Minister Boris Johnson’s phone number has been online since 2006, the BBC reports.

The song is under a press statement Johnson wrote as a Member of Parliament fifteen years ago.

According to the broadcaster, the prime minister has not changed his number since then. AFP news agency tried that phone number Friday morning, and it now seems to be no longer working.

Former security adviser Peter Ricketts told the BBC it is “essential for a minister to get a new number”.

“Foreign powers or criminals may now have the prime minister’s phone number.”