UnknownCaller.info is a reverse lookup website for when people are trying to find out more about a unwanted caller that is dialing your home, cell, work or other telephone numbers. Its an online application or website that many people feel that is useful when they are curious as to who is calling them. The free reverse call database that is available is user-built by people like you. It allows for users to both lookup then learn more about unwanted callers and finally post a complaint or at least additional information about the message or what the person said, as well as anything other that is pertinent so people like yourself can find out more about who these people are.
The do not call database run by the FCC has been a great thing to help reduce the ever increasing number of telemarketer, scam calls, and other types of telephone callers that are bothering people today. Thankfully, some of these have been on the decrease but for many people not quite fast enough. We've seen some type of increase in messages from groups that are actually outside the United States -- this could be due to the ease of use of long distance calls and also because they are less expensive (or free) than they used to be.