To summarize that well padded video, New York switched to digit dialing in the early 70s, but some New Yorkers considered their phone numbers to be a status sym

To summarize that well padded video, New York switched to digit dialing in the early 70s, but some New Yorkers considered their phone numbers to be a status symbol because the phone number identified which neighborhood you lived in. Some kept using them up until the 80s. Seinfeld is set in the 90s, but is based on the time Larry David and Jerry Seinfeld lived in the city a decade earlier. So the show contains anachronisms like Elaine giving out her phone number in a format that had finished dying out years before the show was set.