I just consolidated all responses thus far
View attachment 243751
From what I am seeing, all phones on Verizon network got P (irrespective of where they were bought)
All phones bought from the Google Store and not on on Verizon are still on L
All phones bought from Best Buy and not on Verizon are on N
So, looks like Verizon has pushed P on its network (from L or N) . All phones not on the Verizon network are on their original builds; L for those bought from GS and N for those bought on BB
Very nice. Thanks!