About the RADb

The RADb is a public registry of routing information for networks in the Internet. Hundreds of organizations that operate networks -- including ISPs, universities, and business enterprises -- publicly publish, or register, their routing policy and route announcements in the RADb to facilitate the operation of the Internet. Organizations throughout the world use the information in the RADb to troubleshoot routing problems, automatically configure backbone routers, generate access lists, and perform network planning.

Any organization worldwide may register in the RADb for a fee of $250 per year and any Internet user may query the RADb for free. Currently, the RADb receives about 150,000 queries per day from over 7,000 unique hosts. More than 1,800 organizations have registered their routing information in the RADb, with new organizations registering every day.