Before 911, the phone numbers for police, fire and EMS dispatchers were all individualized, and varied from region to region. Needless to say, this caused several problems- emergency phone numbers were difficult to memorize, and the same number would not work in another region. This is why the 911 system was implemented.
No, 911 is a special case. You just dial 911, even if you dial area+number or 1+area+number for other local calls.
Dial 911.
Dial 911
Call 911 before you start CPR.
Dial 911
If in USA dial 911 If in India dial 100
911
You would dial 911 for an emergency.
911
Canada uses 911 as its emergency number.
Feb 1968!
Dialing 911 automatically routes you to an emergency service center near your current location.