Was going to post the same thing. People forget that prior to cell phone number portability between carriers in late 2003, you basically got a new phone number when you moved or changed carriers. Hence much more of the “new phone, who dis?”

Now the comic is more like “where you lived in 2005 or when you first got a cell phone”.

Now that I have kids it’s an interesting signaling mechanism seeing which parents have local area codes and which ones have them from other parts of the country.