The IP address start from 192.0.0.0 to 184.108.40.206, and the mask address is 255.255.255. Class D: multicast networks The IP address start from 220.127.116.11 to 18.104.22.168. Class E: reserved for future use. ... In this scheme, there are no classes, but the addresses are still granted in blocks In classless addressing, when an entity, small. Importance of Addressing and Naming Schemes. It is important to develop addressing and naming schemes in any network that anticipates growth. Having an inadequate amount of server or host IP addresses, for example, can result in a costly reconfiguration of the network. A comprehensive naming scheme facilitates easier asset control measures, as.