If a child gives out his/her phone number, someone can now look it up to find out where he/she lives. The safety issues are obvious, and alarming.
Note that you can have your phone number removed or blocked. I tried my number and it came up along with the mapquest and directions straight to our house. I did fill out the removal form for myself, and encourage all of you to do the same.
In order to test whether your phone number is mapped, go to Google, http://www.google.com/ Type your phone number in the search bar (i.e. 555-555-1212) and hit enter. If you want to BLOCK Google from divulging your private information; simply click on your telephone number and then click on the Removal Form. Removal takes 48-hours
And It's Raining 300 Men. ;)