Does straight talk iPhone 4 run off of Verizon towers?

I'm gonna buy an iPhone 4 threw straight talk and I was wondering what towers they run off of and do they get good signal

Straight talk doesn't sell iPhones, so the only way to use one is to get one unlocked and install a straight talk SIM card, which will let it work through T-Mobile.

Yes, Straight Talk does now sell iPhones. With a $25 per month financing. The micro sim card for Iphones uses AT&T towers.

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