Can I use a T-Mobile sim card with a no contract AT&T's cellphone?

W

Wang

New member
I have a BlackBerry Bold 9700 which bought it from Amazon and it's no contract , but the thing is I still have the word "AT&T" on the bottom of the blackberry. (even though it's no contract!)

Now I wanna change at&t sim card to T-Mobile sim card,

So Anybody could tell me it's gonna work on t-mobile sim card , or it only gonna take at&t sim card?
 
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