You are getting constantly harassed by prank callers. You are getting unwanted phone calls from an unknown phone number. You may even be suspecting that your spouse is cheating on you. Whatever the case may be, running a phone number reverse lookup can help you find the identity of the person behind the phone calls.

You can run your own phone number reverse lookup without hiring an expensive private investigator using a few free and easy techniques.

1.Call Them- If you are bold enough, you can call the number yourself or have someone else you trust call the phone number. Remember, your purpose in calling the number is to identify the person behind the call, so it may not be wise to reveal your own identity outright.

2.Google- Another easy thing you can do is to type the phone number into a search engine like Google, MSN, or Yahoo. I have done this on a few occasions with success. The phone numbers that I typed in turn out to be telemarketer numbers. Surprisingly, many people come online with the very same numbers and receive the same vague phone calls.

3.Free Phone Directory- You can also use an online phone directory like the whitepages. This is basically an online version of your typical phone book. It will help you find listed home phone numbers or landline numbers but not much else. Not very useful for cell phone numbers.

4.Cell Phone Directory- If you are certain the phone number comes from a cell phone user, you can subscribe to a cell phone directory. I would not advise that you use a paid cell phone directory because they are often poorly updated.

5.Phone Number Reverse Lookup- This is your best option if you want a quick and reliable reverse phone number lookup. You type in the phone number and you get an instant report showing you the name, address, carrier, and other details regarding the user.

Be very wary of any online service that claims they are a free reverse phone lookup. There are a lot of scams on the internet. The last thing you want to do is to falsely accusing someone.

I would suggest that you go through the first three options. If you just want to skip to a service that identifies both landlines and cell phones, then go for the phone number reverse lookup. Mobile technology is progressing to a point where you can easily and reliably identify abuse in communication.