STL-RIX in PeeringDB
PeeringDB is the primary mechanism for IXP participants to discover which other networks are available to peer in a given facility. STL-RIX has an innovative structure, consisting of two inter-connected IXPs within the same facilities, Midwest-IX St Louis and Smart City Internet Exchange. To reduce confusion we have a single entry in PeeringDB that covers both sides of STL-RIX, which you can find here: https://www.peeringdb.com/ix/1519. As you can see from visiting that page, several networks are already connected. We are also in progress of connecting more networks, so expect to see that list growing in the coming days and weeks!