A:Answer According to the internet, "h2o Wireless is an MVNO (mobile virtual network operator), their cell phone service is powered by the national AT&T 4G LTE network". Since I am an AT&T subscriber, and my phone works fine on the AT&T 4G LTE network, I'm assuming the phone will work with h2o. However, I suggest that you ask this question to Motorola and h20 to get a definitive answer; I understand that it's not just the network, but also the bands and frequencies that must match for both carrier and phone. Also, check for coverage -- does h2o's coverage extend throughout the entire AT&T network or just to a portion of it?