9-1-1 is the emergency number that most people in the U.S. and some international countries use to seek help in police, fire, or medical emergencies. When you call 9-1-1, your call is directed to the appropriate 9-1-1 public-safety answering point (PSAP) based on your location. Trained personnel at the PSAP then send the necessary emergency assistance.
For Las Vegas and Clark County, the LVMPD Police Dispatch is the primary PSAP for 9-1-1 calls. Medical and fire calls are transferred to the Las Vegas City Fire Department Dispatch center, while Metro Dispatch handles police events within the LVMPD jurisdiction. Other cities like Henderson, North Las Vegas, Mesquite, and Boulder City have their own police departments, so if you call 9-1-1 from these cities, your call will be routed to the respective department's dispatch center.