It is not possible. It can only be used on the Sprint or Boost networks.
no
There are many things that the company Sprint sells. The best things that Sprint sells would be things like cell phones, cell phone services, and cell phone accessories.
Yes, Sprint offers a prepaid cell phone plan, it's called Boost Mobile. You can find out more on Sprint.com. yes sprint offers prepaid phone.
No, you cannot unlock a car door with a cell phone.
Sprint
Yes, in most cases, you do need a special code to unlock a locked cell phone. This code is known as the "unlock code" or "SIM network unlock PIN." This code is typically provided by the cell phone carrier that locked the phone or a third-party unlocking service. It is necessary to input this code to remove the carrier restrictions and allow the phone to be used with other carriers' SIM cards.
You can shop for and purchase Sprint cell phone and accessories directly from Sprint at http://www.sprint.com/. Some other sites that offer Sprint cell phone and accessories include http://www.bestbuy.com/, and http://www.amazon.com/
An unlocked cell phone means that it can be used with any carrier. It does not have to have a contract; however, it can have a phone line on it. (any phone line, not just at&t, verizon, & sprint)
your cell phone service
The most affordable US Sprint cell phone plan is the pay as you go. This is the most affordable because it means a light user is not paying for time they are not going to use and still has the cell phone access they need,
The best smart phone on the Sprint cell phone plan is subjective. It depends on what you are looking for in a cell smart phone. The palm pixi, LG Rumor Touch and The Samsung Seek are all great smart phones available through Sprint.