So Contractor numbers in Pasco are only 6 digits.
So far this is what I have found, no research to see if these are sprint sites. (edited to make more legible)
UCI CONSTRUCTION SRVCS, LLC 31336 ST JOE RD 11-08-2012
UCI CONSTRUCTION SRVCS, LLC 8716 PUMP STATION RD 08-29-2012
UCI CONSTRUCTION SERVICES, LLC 28555 STATE ROAD 54 07-25-2012
UCI CONSTRUCTION SERVICES, LLC 8324 CORPORATE WAY 07-25-2012