Hi there 516.... I do have a 3$ pay as you plan as well. I called T-mobile customer care earlier I asked them if how long they will be able to keep my number after I exhausted my money on my account . I do have still 90 days of not paying on it. I hope it will works for you. .
*edited personal info - Marissa
Hey there and thanks for coming to support. The best way to insure that you keep your number, is to keep your account current. I suggest taking a look at the terms at the bottom of our Prepaid plans page for more information.