The 1996 results of Operation Senior Sentinel demonstrate the importance of the coordinated approach to enforcement. By the end of the year, the operation had led to the arrest and prosecution of more than 800 individuals charged with federal crimes for telemarketing, including mail and wire fraud and conspiracy to commit fraud. At least 161 of these people were convicted and sentenced to an average of 30 months in prison; at least 80 more have been convicted and are awaiting sentencing.

Federal officials in Nevada, where most of the defendants were located, report a significant downturn in the number of active boiler rooms since Senior Sentinel, as well as a "significant decrease in the complaints to local law enforcement from telemarketing victims."(9) According to Justice Department officials, law enforcement offices in Southern California and upstate New York (Buffalo) also report that prize promotion schemes and recovery rooms are on the wane following Senior Sentinel's hits on their bases of operation.