Why doesn’t Verizon serve Wabash, Miami, Cass, Carroll, and Fulton counties?

Why doesn’t Verizon have service in Wabash, Miami, Cass, Carroll, and Fulton counties?

In the late ‘80s and early ‘90s the FCC began to divvy up the cellular frequencies in the rural areas.  At the time Verizon did not exist.  The winning company in the area was U.S. Cellular a TDS Company.  As time progressed and other frequencies were offered, companies were combined and Verizon was formed, Verizon was effectively shut out of owning any of the frequencies it needed to provide service in those counties.  As most people know in the area, Verizon customers are served via a roaming agreement with U.S. Cellular (now owned by Sprint).