My view. Here is the core problem and that's why the likes of KDN is different from others. ( I ain't favouring them, just facts speak ).
 
A list of providers, but has any build long distance fiber networks. Some I've never heard of while others most likely simple layout : Drop a few base stations on open bands in metros and connect clients aka wireless extended.
 
http://www.cck.go.ke/licensed_operators_and_service_providers/
 
Here's even something better. Local loop operators. ( which loops are being offered ? )
 
http://www.cck.go.ke/licensed_operators_and_service_providers/
 
Here's something to ponder. Ever wondered how for example motorola canopy is being used to deliver services in building and estate scenarios? You maybe in for a shock, from a network perspective. Broadband is " a shared LAN ".  :-)