9-1-1 was a phone number used to summon firefighters, police, or paramedics to the scene of an emergency in North America.
In 2022, this phone number was printed on the side of ambulances called to the Lake Ontario Bridge, which had been destroyed in an explosion. (SNW: "Tomorrow and Tomorrow and Tomorrow")
In 2024, this phone number was printed on Los Angeles Police Department police vehicles. (PIC: "Watcher")