Here is a list of the remaining clusters in Chicagoland area if they are still sticking to this format that was laid out some time ago...
As you can see they are jumping back and forth all over Chicagoland area...
The remaining clusters to be deployed:
June Clusters
? Schaumburg/Elk Grove Village
? Aurora
? Valparaiso/Portage/Michigan City, Indiana
? Crown Point, Indiana/Chicago Heights, Illinois
? Gurnee
? McHenry/Woodstock
? St. Charles/DeKalb
? Freeport
? Ottawa/Peru/LaSalle/Princeton I-80 Corridor
July Clusters
? Rockford/Harvard
? Palatine/Arlington Heights
? South Chicago
? Tinley Park/Orland Park
? Cicero/Berwyn/Brookfield
? Oak Park/Maywood
? Wheaton/West Chicago
? Crystal Lake
? Whiting/East Chicago, Indiana
August Clusters
? Streamwood/Elgin (east of the river)
? Glenview/Niles
? Harwood Heights/Northwest Chicago (city)
Septemeber Clusters
? The Loop/Downtown Chicago
? Remainder of Urban Chicago
? Oak Lawn
? Des Plaines/O'Hare
? Northbrook/Glenview/Wheeling
? Highland Park/Deerfield
? Lake Forest/Mundelein
? Plainfield/Homer Glen
? Gary, Indiana
Each triangle/color represents a different cluster.. They say there is over 1100 clusters in Chicagoland area to cover making it one of the biggest in the US to upgrade.
Click to view quoted image