locator

/L OW1 K EY0 T ER0/
noun
  1. 1

    One who, or that which, locates.

    โ€œI found the opening times for my local branch using the Web site's store locator.โ€

  2. 2

    One who locates, or is entitled to locate, land or a mining claim.

  3. 3

    (travel industry) The unique alphanumeric reference given to each travel booking.

Source: https://en.wiktionary.org/wiki/locator