Smoke billows from a rooftop. Two cars collide. A loved one loses consciousness. A prowler finds an unlocked door. When these and other emergencies strike, dialing 9-1-1 is the first step toward help. Since 1987, Denco Area 9-1-1 District has been hard at work implementing and refining the technologies, protocols, training programs, and community outreach initiatives that equip 9-1-1 telecommunicators to direct first responders to the scene — swiftly and skillfully — throughout Denton County and the city of Carrollton. Our staff works behind the scenes in support of 11 communication centers known as public safety answering points, or PSAPs, along with more than 50 public service agencies.