You can most likely port your number. We are able to port the vast majority of numbers in the US and Canada.
Please fill out our Porting Request with the number(s) you are interested in porting and we'll run a check and get back to you with a definite answer.
If you live outside the US or Canada I'm afraid we will not be able to port your number at this time, and you will not receive a response from us. But you can always submit a request, as we are keeping track of the countries we do not yet offer porting to.