The University of Phoenix is currently regarded as the world's most business network of universities, 28 states in the United States to recognize its qualifications, it was founded in 1976, in 1989 became the first batch of schools recognized to provide online degree education in the United States, through the distribution of 15 universities across the United States, 126 campuses, teaching centers, the rapid development of distance learning, to date, there are more than 150,000 students, is the largest private university in the United States. It is the largest private university in the United States in terms of student enrollment.