9-1-1

For the terrorist attacks, see September 11, 2001 attacks.

"Emergency 911" displayed on the side of a police car, saying that 9-1-1 is the number to dial if an emergency happens.

9-1-1 or 911 (a lot of times said as "nine-one-one" or "nine-eleven") is the emergency telephone number for the United States, Canada, and Argentina. This number can only be used for real emergencies. In other words, you use it when you are in serious trouble. The use of the number when there is no emergency may end in a criminal charge.

Related pages

• 1-1-2
• 9-9-9
• 000 Emergency