CIDR, or supernetting ... that has your specified number of hosts and corresponding supernet (like a subnet mask). A supernetted address will look like any other TCP/IP address in dotted decimal ...

You can easily convert a subnet mask into a wildcard mask ... see the online CIDR/VLSM supernetting calculator. David Davis (CCIE #9369, CWNA, MCSE, CISSP, Linux+, CEH) has been in the IT industry ...

For example, your ISP may assign the company 98.139.183.24/29, which is CIDR notation for a range of eight IP addresses from 98.139.183.24 to 908.139.183.31 with a subnet mask of 255.255.255.248.