Nobody likes pestering phone calls.  And they can come in many forms.  They can range from the calls of telemarketers just as you have sat down to dinner, the calls of bill collectors, prank callers, or even harassing phone callers.  None of these calls are welcome or wanted.
But there is some good news about these types of calls.  They don't have to be tolerated.  There is always a way to identify them and take the proper steps to permanently put a stop to them.  The method you use to go about doing this will depend on the type of call received.  If the calls are coming in from listed landline or business numbers, your fastest and easiest route for dealing with these calls is to use a public phone directory.
These directories are free to use and you will be able to quickly identify the caller.  Now, if the calls plaguing you are coming in from a wireless number, you will no longer be able to make use of these free public directories simply because their services are limited to providing information on telephone numbers that are a matter of public domain.
Public domain is something that wireless numbers are not.  This information will only be located in a phone directory that has first purchased the personal details of wireless numbers from the original owners of this information.  And you can probably guess who are the original owners.  They are the companies we all make our payments to every month to keep our wireless service active

The great thing about these directories, aside from the fact that wireless searches will cost a little bit of money, is that they carry information for every sort of telephone number that exists these days.  You won't find fax numbers, pager numbers, VoIP numbers, or the hard to identify unlisted numbers using any other kind of directory.  So, if you would like to have one single resource for the ability to trace any kind of telephone number, these directories definitely deliver.
Any time you need to find someone by cell phone number or any other kind of telephone number, you can run a free initial search and obtain a risk-free report with any number of the good directories that offer this service on the Internet.  If you look hard enough, you will find more than a few that offer searchers a money back guarantee for every report you buy.