If you look at CAIDA ASRANK, very few of the top-20 ranked ASes in the world, as ranked by diversity of peering, number of BGP adjacencies, etc also own/fully control the dark fiber their inter-city router-to-router links are operating on. They leave that to specialists like Zayo.

Telia has POPs all up and down the US west coast but it's certainly not their fiber connecting them together.