There is a simple reason why hyperscale app providers now drive global data traffic and build and own their own networks: a handful of firms generate most of the demand. In 2021 just six firms generated 57 percent of global traffic.
These days, voice demand is paltry in relation to content bandwidth--largely video--that flows between hyperscale application provider data centers and internet points of presence where local internet service provider traffic pours onto the backbones.
In other words, if you know the locations of the hyperscale app provider data centers, you also know the locations between which most data flows over WANs.
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