SIM Card help

[ghostrider5666]

I bought a Pantech UML290 4G Air Card from my friend and was wondering can I use my same Sim from my droid charge in the air card too?

 

[anon(94115)]

I am not sure, I know you can move cards between phones (or at least you used to be able to) but not sure about moving things between different devices. I would be careful though. If you are grandfathered in on the unlimited data you might mess that up if it fails.