What Does Metropolitan Area Network (MAN) Mean?
A metropolitan area network (MAN) is similar to a local area network (LAN) but spans an entire city or campus, or some other municipal or organizational territory. MANs are formed by connecting multiple LANs. Thus, MANs are larger than LANs, but smaller than wide area networks (WAN) that cover dispersed geographical areas, sometimes directly connecting users around the world.
Techopedia Explains Metropolitan Area Network (MAN)
A MAN is ideal for many kinds of network users because it is a medium-size network. MANs are used to build networks with high data connection speeds for cities and towns.