What options do administrators currently have to slow the depletion of IPv4 addresses available?

Administrators can implement Network Address Translation (NAT) to allow multiple devices on a local network to share a single public IPv4 address, thereby conserving address space. Additionally, they can utilize Classless Inter-Domain Routing (CIDR) to allocate IP addresses more efficiently. Another option is to encourage the transition to IPv6, which offers a vastly larger address space. Finally, they can reclaim unused or underutilized IPv4 addresses through better inventory management and address reassignment.