Conduct telephone directory searches.  Find out addresses, telephone numbers.  Find out if a phone number is a cellular number.  Do reverse searches: find out who belongs to an address or phone number. Not just for private eyes!

Welcome to the home page of Spies Online, which contains a myriad of investigative resources for private investigators, including a PI Directory.  Whether you are a private detective or an amateur sleuth  looking to find someone or conduct a free people search, you will see why private eyes choose to use the investigative resources at Spies Online. Home  The Spies Online Forum is not just for private investigators.  Discuss investigative resources, private investigation, computer security and privacy, and legal issues. Forum  Send free electronic postcards here.  Our electronic postcards are not just for private investigators. Postcards  The Spies Online PI Directory from Spies Online has listings of private investigators worldwide. Spies Online PI Directory  Our e-mail discussion group is not just for private investigators.  We discuss private investigation, investigative resources, computer security and privacy, and legal issues. E-mail Discussion Group  Spies Online's PI Bookstore is not just for private eyes.  While we recommend books on private investigation, investigative resources and computer security and privacy, you are free to order any kind of books that you like. PI Bookstore  Our FAQ/TOS and privacy policy should be reviewed before exploring the investigative resources on this site.  Private investigators and everyone: please read our rules before using this site. FAQ/TOS

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Spies Online contains a wealth of investigative resources for the private investigator and amateur sleuth alike.  For those who want to learn the art of private investigation, forget about software programs promising to turn you into an online spy. Spies Online will show you how to find someone and conduct a free people search, in some instances.
Looking for someone or something?  Spies Online has a wealth of investigative resources available for private investigators and amateur sleuths alike.

Telephone Searches and Tools

  • AnyWho
    This directory service is provided by AT&T.

  • Argali
    You can download and use this ad-supported telephone directory service for free. Private investigators love it!

  • Bigfoot Directories
    Lots of directories here.

    From the site: "This tool dials a phone number and a computer voice reads off the text. The receiving phone number shows up as the CallerID field. You can set the time to any point in the future, or you can leave the time to now and it will call immediately."

  • Company And Telephone Directories
    RBA Information Services provides this nice worldwide directory compiled by Karen Blakeman.

  • Craig's Number
    Ever need a quick temporary call back # and want to remain fairly anonymous? Check this out.

  • Directory Assistanceplus
    This site offers some very useful searches and reverse searches.

    You can search by web or phone. To search by phone, dial 1-800-FREE411 when looking for a number; the call is free. Why not save money?

    If you're tired of getting nothing but a computer when you make a phone call and really need to talk to a human, you'll love this database.

  • Google Text Messaging Service
    Now you can use Google to send text messages. All you have to do is enter a cell phone number and a service provider. Then just enter your message and click send. From Google's FAQ on this: "When you send a message using Google Send to Phone, Google will receive and log the IP address [?] and one or more cookies from the computer you are using, as well as information about the mobile phone you are sending to, including the phone's telephone number and carrier. In addition, we might also log the text of the message you send, in order to investigate and correct technical problems with the service."

  • Infobel International Directory
    This directory has information and services for over 184 countries.

  • Infospace
    Here's another popular online directory.

  • Ithaca College: How Can You Find Anything on the World Wide Web?
    This page has links to many phone directories and hints on how to use them.

  • oh, don't forget...
    This service may be used to send yourself (or anyone) a reminder text message.

  • Reverse Phone Directory
    You'll love this directory. Find out to whom a phone number belongs. Put in someone's street name, city, state and zip code and find out all of their nearby neighbors. Some of the other directories have these features, too, but the name of this site is so easy to remember!

  • Search Bug
    Use this telephone directory to search for people or companies by name, address or telephone number; there are also many other searches.

  • Searchbug's Landline Or Cellular Search
    From Searchbug: "Verify if a phone number is a cellular/mobile number or a landline number. The tool also reports telco carrier and location name/code. Works for US only. Enter Area Code and the first 3 digits (Prefix) of the number you would like to check."

  • Skipsmasher
    Here's the place where pros get hard-to-find numbers and information.

  • SuperPages
    This free online directory service is provided by Verizon.

  • Switchboard
    Here's another digital directory.

  • WhitePages
    In spite of its name, this site provides free telephone directory searches for persons or businesses.

  • WhoWhere
    Lycos provides this source for free telephone directory searches.

  • Yellow Book
    Here's yet another source for free, online telephone directory searches.

  • The Payphone Project
    This is an online source for payphone information.

  • Unlisted Phone Numbers
    For a fee, get them here.

  • MelissaData's Find Info. About A Phone Number
    Enter a 10-digit phone number and find out the city, state, zip, time zone, county name and more. Enter a 7-digit number, and find out a list of possible area codes, cities and states. Enter a 6-digit area code and prefix and the location will be displayed. Enter a 3-digit area code for a list of the primary cities served by the area code. Enter a city name for a list of possible area codes and prefix combinations. Click here for even more interesting lookups.

  • (MS)ISDN Number Analysis
    Analyze any telphone number in the world, and learn the origin of the phone service! This utility is useful, for example, in pinpointing a location when you have a number but not an address. It provides the name of the city or town but not the street address of the owner. For best results, enter the number in international format (explained on the search page).

  • Phone Validator
    Here you may enter a phone number and find out if it is a cell phone or a landline. It also gives you information about the phone company and phone location.

  • Spoofcard
    This site offers caller ID spoofing and voice changing services. Be sure to check out applicable laws in your area before utilizing such a service.

  • Spooftel
    This site offers a service where you can call someone and make it look like you are calling from a different phone number. Be aware that there may be laws governing the use of such services, and you should find out what they are in your area.

  • Telespoof
    Here's another caller ID spoofing service that purports to allow "business professionals to remain anonymous when calling from anywhere in the world, to anywhere in the world." Again, be aware of applicable laws in your area before using such a service.


Know of a site that belongs on this list? Contact Spies Online.

  Disclaimer: Spies Online Web Author will not be responsible for the use of any of the information on this page or any consequences resulting from using that information. You must read and accept our complete Terms Of Service (TOS) before using this site. Copyright 1998 - 2016 by Spies Online. All Rights Reserved. Last Updated: Thursday, 02-Jun-2011 21:05:02 PDT