Hunting today for a site that would spew a range of IPs when given a CIDR number, and decided
IP Address Guide was pretty close to what I needed, and it had several other useful tools, particularly for those of us having to debug firewall and proxy problems without access to said firewalls or proxies. It even had a little embedded script, like this:
1Enter CIDR range or IP2Press the button “CIDR”
Woot?