This wikiHow teaches you how to find out information about a phone number for free. You can use any combination of a reverse-search service, Wolfram Alpha, Facebook, and Google to look up the phone number. Keep in mind that most mobile numbers' information can be fairly restricted, meaning that you'll usually only be able to find out where the number was registered and what carrier the number uses.

Method 1 of 4:
Using WhitePages

  1. 1
    Open WhitePages. Go to https://www.whitepages.com/ in your computer's web browser.
  2. 2
    Click the REVERSE PHONE tab. It's above the text box in the middle of the page.
  3. 3
    Enter a phone number. Type the phone number you want to look up into the text box in the middle of the page.
  4. 4
    Click the "Search"
    Image titled Macspotlight.png
    icon.
    It's to the right of the text box. Doing so searches the WhitePages directory for a matching person.
  5. 5
    Review the results. While WhitePages won't give you the person's name for free, you should see the first letter of their first and last name as well as their current city and state.
    • You may also see a "Spam" rating that determines whether the number is personal (low-risk) or a potential spam number.
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Method 2 of 4:
Using Wolfram Alpha

  1. 1
    Open the Wolfram Alpha website. Go to https://www.wolframalpha.com/ in your browser. Wolfram Alpha is a computational knowledge site that can pull information from multiple different sources to solve a problem.
  2. 2
    Click the search bar. It's near the top of the page.
  3. 3
    Enter the phone number. Type in the ten-digit phone number for which you want to search, making sure to use the (123) 456-7890 format (making sure to keep a space between "(123)" and "456") rather than typing in 1234567890 format.
  4. 4
    Press Enter. Doing so will search for your number.
  5. 5
    Review the results. Wolfram Alpha will display information such as the phone number's original location (city and state), detailed demographic information about that location, and the phone number's carrier if it's a mobile phone.
    • This service is helpful if you want as much information as possible about the phone number's region.
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Method 3 of 4:
Using Google

  1. 1
    Open Google. Go to https://www.google.com/ in your browser. If you use Chrome, you can just search in the address bar at the top of the window instead.
    • Using Google to find a phone number only works if you're looking up the number of a relatively well-known company. Don't use Google for personal numbers.
  2. 2
    Click the search bar. It's in the middle of the page.
    • Skip this step on Chrome.
  3. 3
    Enter the phone number. Type in the ten-digit phone number, making sure to use parentheses and a dash where appropriate. The phone number should be in (123) 456-7890 format.
  4. 4
    Press Enter. This will search for your number.
  5. 5
    Review the results. Depending on the number, you'll either see the business to which the number is registered or a list of services claiming to have information on the number.
    • If you see a list of services here, you can select one to review its information; however, be wary of sites that ask you to enter any personal information in order to see the results.
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Method 4 of 4:
Using Facebook

  1. 1
    Open Facebook. Go to https://www.facebook.com/ in your browser (desktop), or tap the Facebook app icon that resembles a white "f" on a dark-blue background (mobile).
    • If you aren't signed into Facebook, enter your email address (or phone number) and password before proceeding.
    • This method will help you figure out which number is tied to a person's account, but the number must be registered to the person's account for it to work, and the person's account settings must allow people to look them up via phone number.
  2. 2
    Select the search bar. Click or tap the "Search" text box at the top of the page.
  3. 3
    Enter the phone number. Type in the ten-digit number for which you want to search, then either press Enter (desktop) or tap Search (mobile).
  4. 4
    Review the results. You should only see a maximum of one account appear, though you may also see posts referencing the number. If the person to whom the phone number belongs has it registered to their account, this is who you'll see.
    • If you don't see any results, the person to whom the number is registered either hasn't added the number to Facebook yet or hasn't allowed the number to be searched.
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Community Q&A

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  • Question
    Can you look up cell phone numbers for free?
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    To get search phone numbers for free, you need to use a combination of sites and services to avoid fees. You could try the National Cellular Directory to begin with. Or, you can try one or any combination of the four ways suggested in the steps above to see if any of them work for you. Sometimes it is best to use a few services to be sure you get the result you’re after, as their reliability and "free" search abilities can change over time.
  • Question
    Can you Google search a phone number?
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    Google doesn’t provide a specific service for searching phone numbers. However, if the phone number has been provided publicly, such as for a business, hotline, charity, government department, etc., then a standard Google search should return the number as part of the website information (sometimes displayed in a side box as part of the search return). Just be aware that your search may be complicated by overseas numbers and use of the same set of numbers in ways that have nothing to do with phone numbers.
  • Question
    How do I get my phone number?
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    A phone number is assigned to you on the SIM card you purchase for a cell phone/smartphone––for help with finding it, see How to Get Your Mobile Number from Your SIM, which will help you find it on a variety of phones or via the telecommunications carrier. And the telecommunications authorities who install a landline will assign you a landline number; contact your carrier by email or cell phone if you don’t know what number they’ve assigned your landline phone.
  • Question
    How do I find information on a person?
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    wikiHow Staff Editor
    Staff Answer
    There are various ways you can find information about a person. For example, you can do online searches (general and specific), you can check public records and you can search social media. If you have money to pay for someone else to do the searching for you, you could also hire a private investigator. All of these methods, and more, can be found in detail in the wikiHow: How to Find Information on People.
Unanswered Questions
  • How do I find out the mobile number's detail?
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      Tips

      • There are plenty of free services that can find basic phone information; as such, you shouldn't have to enter your email address or create an account to find out free information about a phone number.

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      About This Article

      JL
      Written by:
      Jack Lloyd
      Tech Specialist
      This article was written by Jack Lloyd. Jack Lloyd is a Technology Writer and Editor for wikiHow. He has over two years of experience writing and editing technology-related articles. He is technology enthusiast and an English teacher. This article has been viewed 463,717 times.
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      Co-authors: 11
      Updated: January 2, 2019
      Views: 463,717
      Categories: Telephone Numbers
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