A great byproduct of using the caller ID spoofing technology is the ability to look up the owner of a phone number. For instance if you use one of the caller id spoofing services, and enter in the number you want to be displayed (the number you want to know who owns) without a name, 9 out of 10 times it will display the real owners name. This usually works most of the time if you are in the same area as the number in question, but it will work sometimes even if it’s not.
Although not the intended usage of fake caller ID, it is a great product and is used by private investigators as a fast, easy, and inexpensive method of obtaining ownership information of a phone number. Check it out for yourself!