What the highest ipv4 host address that a machine can be assigned?

The highest IPv4 host address that a machine can be assigned is 255.255.255.255, which is the broadcast address for the entire IPv4 address space. However, in practical networking scenariOS, the highest usable address in a subnet is typically one less than the subnet's broadcast address, which is determined by the subnet mask. For example, in a /24 subnet (255.255.255.0), the highest usable host address would be 192.168.1.254.