As we all become more and more dependent on our cellphones, it is important to know how to protect your phone number from strangers and spammers who might have come across your number and use it for telemarketing purposes. You can always use the settings on your phone to block calls but better yet, take a look at these suggestions from Kim Komando in her post on USA Today to keep your phone number under wraps. For example, there are apps that will provide you with a disposable number to keep your privacy when selling something online, or to avoid giving your number to someone whose background or credibility you want to check out first. You can do the same thing to keep your privacy while texting using a free-texting app like TextFree or TextPlus.