1. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises: receiving one or more list requests within a timeframe; identifying one or more slice name ranges associated with the one or more list requests to produce active address ranges, wherein the identifying includes extracting start and stop slice name ranges from the one or more list requests to produce sub-ranges, aggregating the sub-ranges to produce aggregated sub-ranges, and sorting the aggregated sub-ranges to produce the active address ranges; determining a scan address range based on the active address ranges utilizing a range selection approach; generating a pillar width number of list requests for an associated set of distributed storage and task (DST) execution units based on the scan address range; and sending the pillar width number of list requests to the associated set of DST execution units.