If there has ever been a time where your phone has been dead and want to text your friend but did not know how, then this article is for you. Also if you get an email that you find funny and want to forward it to someone but do not know their email address, you can forward the email to that users phone. All of this is 100% free to do and standard text messaging rates do apply.
All you need to know is the number of the person to receive the text message and the respective carrier they have. Below is a list of the major carriers in the United States.
AT&T 10 digit email@example.com
Boost Mobil 10 digit firstname.lastname@example.org
Verizon 10 digit email@example.com
US Cellular 10 digit firstname.lastname@example.org
T-Mobile 10 digit email@example.com
Virgin Mobile USA 10 digit firstname.lastname@example.org
Sprint 10 digit email@example.com
Alltel 10 digit firstname.lastname@example.org
These are all the major US cell phone carriers that were listed above. If you have a carrier that is smaller or lesser known, a more extensive list can be found HERE. Remember to plug your phone in and you will never need to do this, but it is always a handy trick to remember.