There is a small technical cost and minimal administrative cost associated with deployment of the new address assignment plan. The administrative cost is basically that of convincing the NIC, the IANA, and the network service providers to agree to this plan, which is not expected to be too difficult. In addition, administrative cost for the central numbering authorities (the NIC and the IANA) will be greatly decreased by the deployment of this plan. To take advantage of aggregation of routing information, however, it is necessary that the capability to represent routes as arbitrary network and mask fields (as opposed to the current class A/B/C distinction) be added to the common Internet inter-domain routing protocol(s). Thus, the technical cost is in the implementation of classless interdomain routing protocols.