Abstract Nowadays, communication devices are widespread exponentially. People use some of these devices in daily life like as using mobile to access for shopping from Internet and pay by credit cards or student email their homework to their teacher. In other words, Internet network plays significant roles in people’s life. Therefore, some features such as access to Internet from everywhere, connection bandwidth and minimum necessary devices to connect and use network are important in make better satisfaction of people. In this article, a master plan of infrastructure is suggested that city which built base on this infrastructure, people in city can connect to Data center from anywhere with simple and usual tools like PDA, Notebook and also cell phones and also superior manager can use the information to make proper decisions and as a result they can offer a fast and appropriate sort of management. In this instruction, people can easily connect to Metropolitan Area Network (MAN) then use IT subsystems like Ecommerce, E-learning, E-health and others and enjoy from IT subsystem advantages in city. In this design, there are some important factors that we must attend to them because they affect the result, some of them such as speared of access point to MAN, independent from especial hardware requirement, Network Bandwidth and simple using structure for people. So, in the result, the useful information of people is saved in Data center and people or organization can reach these data easily and use people data in time.