Don't you just wish there was a way to look up a phone number and find out who it belongs to? As long as you have the area code and the seven digit number, you should be able to locate any number's owner, if you know where to look.
Most times the information is insufficient when you are trying to find out who is calling your spouse. Great news, there is lots of great services online, the best one is on the top of this page, try it out. They claim that people prefer the speed of the digital age.
Reverse phone directory is very useful if you want to trace prank or threatening calls. The problem with using Yahoo and Google however is it could take you an entire day or longer to find the information you are searching for, so it is often best to subscribe to the cell phone lookup services online to get your information quicker. These services put a lot of effort and time into gathering information to update their databases.
Like what was mentioned earlier, free directories will only give you landline numbers and not mobile phone numbers. You get detailed information, which makes it worth the cost.