Reverse lookup

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

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] and a reverse telephone directory, which provides the name of the entity associated with a particular telephone number.[3]

See also[edit]


  1. ^ Downey, Allen (2012), Think Python, O'Reilly Media, p. 125, ISBN 9781449330729 .
  2. ^ Sheresh, Beth; Sheresh, Doug (2001), Understanding Directory Services, Sams Publishing, p. 237, ISBN 9780672323058 .
  3. ^ Lane, Carole A. (2002), Naked in Cyberspace: How to Find Personal Information Online, Information Today, Inc., p. 144, ISBN 9780910965507 .