How to Look Up Cellular Phone Numbers

By Karen LoBello

Since cell phones have become so widely used, some people have chosen to abandon their land line phones in favor of cellular phones. Cell phone numbers are not listed in the traditional phone books. Perhaps you want to look up an individual's cell phone number. Maybe you have received an anonymous call and want to find out who was at the other end. Locating cell phone numbers can be tricky, as they are protected by privacy laws. There are various avenues to explore when you want to look up a cellular phone number, including the Internet.

Step 1

Click "Start," "Internet Explorer." Navigate to an online profile for the person you're searching for, such as on Facebook or MySpace. Some people post their cellular phone numbers in their profiles. Although this information isn't generally accessible to the public, those who are designated "friends" do have the right of entry. If you are not a friend, you can put in a "friend request." If it's accepted, you will gain admittance to the information posted on the person's profile.

Step 2

Visit the online National Cell Phone Registry. Type in the first and last name of the individual. You will be given locations and ages of persons with that name. Click on "View details" of the closest match and you are given the option of ordering the individual's records. As of December 2010, you will pay about $15 for an instant record check on one person. At one time, the type of information found on this site was available only to police officers and certified private investigators. In addition to addresses and phone numbers, you can also perform background checks.

Step 3

Use an online service such as Reverse Phone Detective if you want to do a reverse phone look-up. Once at the website, you enter a phone number and are given the city and state of the cell number's origin. If you pay a fee, you will receive detailed information regarding the number. As of December 2010, this service costs about $40 for unlimited access for one year. You'll pay about $15 to receive information on a single phone number.

Step 4

Hire a private investigator. It may seem a bit drastic, but PI's have access to records not available to the general public. They know how to ask the right questions, and they can access information easily. Private investigators search databases not open to the public, such as tax, DMV, court and real estate records and business licenses.