The most frequently asked questions by customers, dispatchers or dispatch managers is “Where is Semi Trailer number ...ABC...?”. This happens when there is no reliable semi trailer tracking systems is in place. semi trailer tracking systems is a system that can be used to track your Semi Trailers in real time. Real time means when your dispatcher thinks about a Semi Trailer then he/she knows where it is right now. Efficient Semi Trailer tracking is not possible without state-of-the-art GPS Tracking Devices and an intelligent semi trailer tracking software. There are thousands of types of GPS tracking devices and softwares available in the market. It is a tedious homework to choose the best one.