From Consumer Wiki
Consumers may report fraudulent use of lost or stolen checks to their own bank as well as the following two entities:
This office requires the check writer's drivers license number and account numbers on checks. The office is open 7 days per week, 24 hours per day.
Telecheck Services, Inc. 5251 Westheimer Houston, TX 77056 (800) 366-2425
(800) 710-9898 Fraud, identity theft, and forgery
Report fraudulent use of checks. This office is open 365 days per year:
National Processing Company (NPC)