An IP address search engine concept

This idea came into existence a year or two ago. However, some friends thought that IP address search was too old and there was no need to do it again, so they put this idea aside. But after a year or two, I still cannot find a good IP address database. I think this idea is worth a try. it is not a waste to write such a program. Now IP address allocation EN "" http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> An IP address search engine concept _ PHP _ China Network Management Alliance bitsCN.com