What towers does Straight Talk use

Does my Straight Talk phone run on Verizon, AT&T, or Sprint? 

This is easy to figure out. Currently all phone’s who’s model number ends in “C” is a CMDA phone which means Verizon. If your model number ends in “G” it’s on AT&T. Currently (as of Jan 2012), all Andriod powered phones from Straight Talk run on Sprint.

Model number ends in:

C = Verizon
G= AT&T
Android Phone: Sprint

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