When overflying any jurisdiction, aircraft are not visually identified by their civil registration decals.
Air Canada can barely keep its fuselage & empennage decals from peeling, cracking or fading away; it doesn't need the hassles of more to look after.
Originally Posted by 5mm
Doesn’t AC new paint job have their Logo on the aircraft underside? I would say the majority of airlines do not do this.
Yes, it does (just the maple leaf roundel, not any text. Several other large airlines (Delta, Emirates, Virgin Atlantic, Qatar, Turkish, Aer Lingus all come to mind) preceded Air Canada in this regard.