Police in Lancashire received more than 20,000 hoax calls in the last three years.
Figures show that officers deployed to 53 per cent of the calls.
However they only arrested 39 people.
In 2010 they received 7,211 calls, in 2011 this had reduced to 7,204 and last year this had dropped again to 6,129.
One of the hoax calls from 2012 happened at around 11.30pm one summer night when a man phoned the police reporting that he and his friend were being assaulted by a group of male strangers and that he was bleeding badly from the head. When the officers attended they found out from witnesses that the heavily intoxicated caller had fallen causing a cut to his cheek.
In another incident the police received a call from a vulnerable man claiming a man had been at his home requesting sexual favours and would not leave. When officers attended they found the man was intoxicated and had fabricated the allegation to cause trouble for the other male.
Of those arrested four were given caution, five were charged and bailed, 12 were given fines.
A spokesman for Lancashire Police said: “The 999 service exists for people to report emergency incidents to the emergency services, for the police it could be a crime in progress or where life or serious injury is at risk.
“People using this service for any other reason is simply unacceptable. While our operators are dealing with these types of calls, people in genuine need of emergency help may be trying to get through.
“At best, these irresponsible calls are wasting valuable time but at the very worst, they could cost lives.”