If you've been reading my blog, then you know of my disdain for anonymous phone calls.
Reverse Phone Lookup through
50 State Phone Lookup is free and allows you to research listed and unlisted numbers including those of mobile phones. This is an important feature because such a large percentage of the U.S. population uses mobile phones these days. This site is definitely bookmark-worthy.
Thank you to 50 State Phone Lookup for sponsoring this post.