I've noticed lately ATC not using "Cessna" when calling me on the radio during flight following. I'm expecting to hear "Cessna 1234...", but instead I keep hearing "November 1234..." I understand that the controller may not remember I'm a Cessna, but in busy airspace, it really helps me to hear my callsign. Don't they write down C172 on their data block when I tell them I'm a Cessna 172? Why do some controllers use "Cessna 1234" and others consistently use "November 1234". I even tried responding "Roger, Cessna 1234" a couple times, but controller kept referring to me as "November 1234." Was he just overloaded? Or is that how it is nowadays? It seems to me that in the 90ies, controllers went out of their way to include aircraft Make.