Routing in 2016 remained stable, with IPv4 growing at around 54,000 new routing prefixes and 3,450 new ASNs per year. IPv6 growth was slower, with around 6,000 new routing prefixes and 1,700 new ASNs per year. While IPv4 addresses are exhausted, routing continues to grow through the increased use of more specific prefixes and the recycling of older addresses. BGP routing tables and updates remained mostly stable and predictable in both IPv4 and IPv6.