For more information on the history of Pager, Beeper and Calculator Codes:
Look Alike Cipher: This is the full 26-letter system that uses visual tricks with numbers for every letter. It became a dominant method for long, complex messages sent to pagers, called "pages" (1990's version of texting). [See the Full Pager Code Key]
Beeper Codes: Need a super-fast message? These are simple, standardized three-digit messages used as quick status updates (e.g., 143 for "I love you"). [View the Beeper Code Dictionary]
Calculator Method: Possibly the original code for pagers, limited but still useful, and meant to be read upside down (e.g., 07734 for "hELLO") [See the Calculator Method]
