IPSpace allows a group of people to maintain records of IPv4
network address allocations using a simple Web interface. It
support classes network allocations and performs netmask and
address checking.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.