Like most things, the globalness of a city is not black or white/yes or no; there are varying degrees. One of the best and simplest ways that I can put it is, Calgary is not an international city but is internationally known. If you are a first time traveller going around the globe, you'd be surprised how many people actually know about Calgary considering its size. In some Western countries it
could be as high 50%.
In the GaWC 2008 Inventory of World Cities, Calgary is categorized as a Gamma - City.