EDIT:

You may get an e-mail stating this, but after further research, it turns out that you DON'T need to register your cell#....

A typical e-mail will state:
Important FYI
Cell phone numbers going public today.

REMINDER....all cell phone numbers are being released to telemarketing companies today and you will start to receive sale calls.

....YOU WILL BE CHARGED FOR THESE CALLS

To prevent this, call the following number from your cell phone:
888-382-1222.

It is the National DO NOT CALL list. It will only take a minute of your time
It blocks your number for five (5) years. You must call from the cell phone number you want to have blocked. You cannot call from a different phone number.

__________________