I don't think. Even DNS operators (root and TLD) are normally using /24 for their anycast nodes - and DNS reachability is *critical* for internet operation.
Also other services - like CDNs for Google, Facebook etc are using /24 - and yes, those *large* service providers are fragmenting their prefixes and increasing size of DFZ. In the past, /24 was *normally* used for PI allocations even in RIPE NCC region, and they're still active... If someone filters prefixes due to limited HW resources in his own equipmnet, he *always* has default route pointing to someone with full (unfiltered) BGP view, where final routing decision is made. It's a must, running network filtering /24 without default route pointing out to upstream is technical suicide. - Daniel On 09/24/2017 12:09 PM, Servereasy wrote: > as it could cause visibility/performance issues as lot of ISPs are filtering > /24s.
