A:AnswerI use mine on PureTalk, which is another AT&T-based MVNO, so it should work on Cricket, too. (Although I've also seen claims that this device will NOT work with AT&T, so YMMV.)
A:AnswerProbably, especially if your Consumer Cellular service uses T-Mobile cell towers. AT&T has "whitelisted" a lot of GSM-unlocked phones made outside of the USA, so I've heard conflicting information on whether or not this phone will work on AT&T-based MVNOs. Check with Consumer Cellular directly to confirm that this phone will work with your current Consumer Cellular sim card.
A:AnswerThis device can be used with most GSM provider that allows unlocked devices. However, we always recommend double checking with the service provider.