This metric shows the total number of different ASNs of neighboring ISPs that can be considered peers of the given ISP. Peers are BGP neighbors that provide transit services to each other and to their CCs (Customer Cones). A Customer Cone is a set of Customers, Customers of Customers, and so on. Local is a special filter. When applying it on the specified metric, only ISPs from the specified region will be considered. Region membership is determined by the country code in the IRR data of the ASNs under consideration.