Great tech questions. Right now, in our beta/test network, we're receiving DIA service to a remote server location and that's it. No peering, no CDNs. Our next steps are to increase the bandwidth of our DIA, since that's more cost effective at our current scale than we'd benefit by peering. The step after that is to swap that DIA for transport and then colocate in DTLA to find peers. CDN caches often require a minimum number of customers on network, something like 5000 for Netflix, if I recall, so we'll have to grow before we can take advantage of caching.
A Netflix cache appliance isn't dependent on the number of customers, it's on dependent on the amount of traffic from Netflix. You don't need 5000 Netflix customers, you need 5 Gbps of peak traffic to qualify.
However that isn't your only option. You can just peer with Netflix, they have an open peering policy.
The issue with peering with Netflix is that Netflix only peers in certain locations, so you need to buy transport to the exchange where Netflix is present.
