High Quality Content by WIKIPEDIA articles! Routing Assets Database (RADb, also expanded as Routing Arbiter Database), run by Merit Network, is a lookup database designed to make fundamental information about networks available. The RADb is a public registry of routing information for networks in the Internet. It was developed in the early 1990s as part of the NSF-funded Routing Arbiter Project. The acronym is frequently seen written in all caps (RADB) but its proper usage is the following mixed case (RADb).