: Traditional publishers moved online with sites like Whitepages.com and Yellowpages.com.
: Mobile users expected their numbers to be private, viewing their cell phones as personal devices rather than public utilities. cell phone directory
: Directories eventually split into residential "White Pages" (listed alphabetically) and business "Yellow Pages" (listed by category). : Traditional publishers moved online with sites like
Before the mobile era, telephone directories were a household staple: these efforts failed due to:
: Published in 1878 in New Haven, CT, it was a single cardboard sheet with 50 names but no numbers, as calls were connected via operators.
As mobile phones gained popularity in the 1990s and early 2000s, there were attempts by wireless carriers to create a "411" style directory for cell numbers. However, these efforts failed due to: