If you buy dark fiber, and then light it up to connect server farms (which are spread across the country/world) and peer with other telecom networks, the world would generally view you as a network service provider.
Now if you wirelessly connect your HQ in say Mountain View, California to a citywide wireless network in city of Mountain View, you would be in the last mile service provider business. And if your name happens to be Google, we shall call this network of dark fiber + wireless combo as GoogleNet.
Except Google executive Chris Sacca says Google’s dark fiber buys “are misunderstood.” Okay, perhaps he has a point, but…. Read this story, though you might have heard/read some of it before all right here., and make up your own mind. Previous GoogleNet coverage.