Can more IPv4 addresses be added to the available pool?
No. The way IPv4 addresses are formulated (for example 10.142.131.235) allows for a maximum of 232, or just over four billion, unique IPv4 addresses. To account for the massive expansion in Internet-enabled services and devices, a new system of addressing had to be introduced to ensure enough unique IP addresses were available. The [Internet Engineering Task Force (IETF)] developed the new protocol, IPv6, which allows for 2128, or roughly 340 trillion, trillion, trillion unique IP addresses. Back to top.