The initial issue of these plates starting in February 2011 were issued in order from the AA to the DM suffix.
All of the teams used plates in the same series - numbers were assigned as needed.

In late 2014, several new suffix combinations started appearing,
and plates have been spotted ending with Ex, Fx, Gx, Jx, Lx, Mx, Nx, Px, Rx, and Ux.

The newer plates are split up by team - one team per letter (except for the 76ers/Knicks).

These are plate types that have been seen on the flat base, but they don't come in sequential order.
There can be remakes, vanities, courtesy plates, special plates, government, dealers, and a handful of others.