There are plenty of benefits to reverse cell phone lookup and cell phone reverse services. First of all, it prevents you from leaking sensitive financial information to shady companies who pretends that they are from some big, reliable organizations. These shady companies would have people trying to extract contact information through databases or some other channels. They would then make calls to the contacts and attempt to market their services or secure important financial information from you.
Usually, they would use cell phones to avoid being traced by you. However, with reverse cell phone look-up services, you can get hold of the physical address of these callers, the names of the caller and other information. This would help you in determining the background of the callers and whether they are who they portray themselves to be. If they turn out to be companies you are not affiliated with in any manner, you know that they have no business calling you.
You can then turn down their calls in the future. This helps you to screen out unethical callers while not missing the important calls from financial companies that really need to get hold of you for some important updates.