Route 128 is in Massachusetts. (The term isn't really used any more because it doesn't correspond to where many/most companies are actually located--it only did to some degree even when the term was in vogue.)

Yep...seems most of what I hear when people from Massachusetts (myself included) when we talk about where we work to outsiders is either "In Boston", or "Right Outside Boston / Near Boston / The Boston Area" (For anything east of Worcester it seems, haha)