are u asking about the inavailability of IP address after some time?
in IPV4 there is a possibility. si IPV6 is also introduced.
but due to subnetting, the addresses in IPV4 are still not expired.
but conceptually, it is possible.
yes. it is IPV6. where we will be using 16 octets, instead of 4 octets used in IPV4
for more information visit www.ipv6.org
and h**p://www.viagenie.qc.ca/en/ipv6forum.pdf#search=%22ipv6%2Bpdf%22
with IPV6 it will be possible to have as many ip adreseses so as to accomodate an ip device on every square metre of earth . so no question of them running out