One of the most well-known Lifeline providers is Assurance Wireless, which operates on T-Mobile’s network. They will give a free android phone to the needy along with free monthly minutes and unlimited text and megabytes of data.

Another major provider is SafeLink Wireless (a TracFone brand) — which operates on several different networks (including Verizon and T-Mobile). In addition to free phones, SafeLink provides up to unlimited talk, text, and data.

Q Link Wireless is another major player, providing a no-cost smartphone and limitless talk, text, and data (though with some throttling after a certain allowance). It operates on T-Mobile's network for wide coverage. Likewise, enTouch Wireless offers customers who qualify with a free phone and service each month with talk, text, and data.

Other Lifeline providers, including Life Wireless and StandUp Wireless, also provide free phones in specific states, as well as monthly service plans. The actual model of phone varies — it's usually a basic Android device that can send calls and messages and browse the internet.