An aged lead is a prospect who initially showed interest in a product or service but has not yet converted into a customer. These leads typically range from 15 to 365 days old, meaning they inquired weeks or months ago. While they may not be as engaged as fresh leads, aged leads can still be valuable, as their need for the service may still exist. They also provide a cost-effective way for agents to practice their sales approach, refine their pitch, and gain familiarity with the sales process while still having the potential to convert into clients.