[chikitabanana]

probably a transplant.

For those interested: _Generally_, Bay Area natives will refer to highways as "280", "101", maybe even "Highway X".

SoCal natives (and many others) will, _generally_ say: "the 101", "the 280", etc.

[CalRobert]

I was genuinely curious, haven't lived in the bay since 2011 and it seemed like it could be shifting. When I lived in the central coast it was a clear shibboleth when meeting people.