I have a cell phone Company I love I do not want a contract phone with any other company, but, my company doest have a contract with carnival and my phone only works on land not at sea.I would like to know from experience will a prepaid phone work at sea if it obviously has a large balance on it. I am looking for an answer from some one with experience with this , not a response telling me to contact the company.I don't want to contact the company.That's why I'm asking you