Have you been receiving irritating prank calls? If not, you might have received non-sense messages. But what is more irritating is that, you don’t know who the sender is. Well, I think you might just end up having a bad day, with a little scratching to do on your head for such confusion as to who owns that phone number.The best thing to do is record, save or simply write in a piece of paper the phone number. After which, you must take note the first two to four digits in the mentioned number. These first numbers that you would see are the calling code. It is in here where you can determine the possible location of the phone number owner. With such, you can guess the possible areas where the culprit might be. It would even save you a lot of effort. Determining the location is one way to limit the number of suspected individuals.Right next the country calling code is the possible telecommunications company. Some companies would have specified digits that would be present in the phone number. There are usually four numbers that the telecommunications company usually carries. Determining both the location and the telecommunications company that the number is in would aid you in narrowing the number of culprits.Finally, you can visit several sites in the Internet that would have such service. You would be able to know the name of the culprit through reverse lookup. Companies such as AT&T would offer this kind of free service. Just place the number and then you will be able to know the information of the owner. Yellow pages would be useful in determining the unknown number. With such, you are now able to determine who in the world is the culprit.There are still other websites that offer reverse lookup. Just always remember that you would be able to search carefully and always check the information that you would receive. With such, you can now file complaints about that phone number, and teach that person a good lesson.