Will my AT&T iPhone LOCKED work for h2o?

This is my second time asking this question! And I have not gotten the answers that I'm looking for.

I have a AT&T iPhone 4.It is running IOS 6.It is not unlocked to other phone companies. I know that I have to unlock it to use simple mobile. But what about h2o do I have to unlock it? Or can I just pop the sim card in & call it a day?

H2O wireless is an AT&T MVNO (Mobile Virtual Network Operator). They use AT&T's tower for their service. Since your phone is an AT&T iPhone, it will work on H2O's network, all you have to do is just pop in the SIM (you don't need to unlock it first), and go to the website in the source to configure your data.

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