I broke my old phone and want to purchase another through this company can I transfer my current plan to a new phone? And how would I do this?
That depend on which model your old phone is. If it is one of the “legacy” phone then no, because all of the now phones go on the new plans which you can review by clicking on Plans at the top of this page. When you activate the new phone do so as a replacement for your broken phone. The broken phone will be deactivated and the number will transfer to the new phone.