IP tracking software

Does anyone know of or use a web-based ip address tracking software?
Basically we want to track our 10.X.X.X addresses as to what’s been used and who’s antennas have which ones. Also it will be used for our installers to be able to get another block or at least just see what they can use next.

Suggestions?

We use IPPlan and find it great - easy to set up and use.
http://sourceforge.net/projects/iptrack/

I agree. IPPlan has been excellent.

IPPlan is no doubt a great tool.