I live in Greeley, CO... I can't tell you any Denver area area codes, guess I'm a s***** Broncos fan. I'm originally from Bridgeport, CT... can't tell you the area code there. Certainly couldn't tell you a Boston area code. I lived in Ocala, FL for a year, I can't even tell you the Ocala area codes at this point... certainly not Orlando, Tampa, Jacksonville, Gainesville, etc. etc. I mean, especially in an age where nobody actually remembers phone numbers off of the top of their heads.
So I'm not sure I follow your point. Nobody's going to deny there's a lot of Red Sox fans who weren't before 2004, and we don't like them anymore than anybody else does -- but the Rays entire fanbase consists of these very same types of people.