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  2. How to Do a Free Reverse Phone Lookup & the 8 Best ... - AOL

    www.aol.com/finance/free-reverse-phone-lookup-8...

    Spy Dialer is a free reverse phone lookup service that accesses public databases of registered phone numbers to help users find information on cell phone and landline numbers and emails.

  3. Reverse telephone directory - Wikipedia

    en.wikipedia.org/wiki/Reverse_telephone_directory

    An unpublished number is also excluded from directory assistance services, such as 411. Landline telephone companies often charge a monthly fee for this service. As cellular phones become more popular, there have been plans to release cell phone numbers into public 411 and reverse number directories via a separate Wireless telephone directory ...

  4. Telephone number mapping - Wikipedia

    en.wikipedia.org/wiki/Telephone_number_mapping

    Internationally, telephone numbers are systematically organized by the E.164 standard, while the Internet uses the Domain Name System (DNS) for linking domain names to IP addresses and other resource information. Telephone number mapping systems provide facilities to determine applicable Internet communications servers responsible for servicing ...

  5. Telephone directory - Wikipedia

    en.wikipedia.org/wiki/Telephone_directory

    Subscriber names are generally listed in alphabetical order, together with their postal or street address and telephone number.In principle every subscriber in the geographical coverage area is listed, but subscribers may request the exclusion of their number from the directory, often for a fee; their number is then said to be "unlisted" (US and Canada), "ex-directory" (British English), or ...

  6. The history of the American phone book - AOL

    www.aol.com/history-american-phone-book...

    As phone lines became more popular—between 1942 and 1962, the number of phones in the U.S. grew 230% to 76 million—telephone companies realized they would run out of phone numbers.

  7. Reverse lookup - Wikipedia

    en.wikipedia.org/wiki/Reverse_lookup

    Reverse lookup is a procedure of using a value to retrieve a unique key in an associative array. [1] Applications of reverse lookup include reverse DNS lookup, which provides the domain name associated with a particular IP address, [2] reverse telephone directory, which provides the name of the entity associated with a particular telephone ...