When did Hollywood movies begin using 555 for every phone number prefix?
because no matter what area code you use, any phone number starting with 555 will take you to the phone company information line. That way, they don’t run into problems by accidently picking someone’s real phone number and having millions of people call them because they saw it in a movie or tv show. It started in 1973, the same year the 555 directory assistance system began.
