Many people will call 911 today, more than 20,000 people will have called the number. Most calls are pranked or not of a real emergency and are made by children.
1 Additional Answer
It is reported that there are more than 800,000 calls a year which is about 2,191 calls per day. Unfortunately 80,000 of them a year (220 a day) are calls that they shouldn't be receiving. You can find more information here: www2.nbc17.com