Originally Posted by
rankourabu
My wife signed up in 2017, and hers is 2L6N starting with V.
Maybe they ran out of 2L6N combos soon after?
Mine is 2L6N, issued in 1999, and starts with W.

I edited my original post as it is clear that they used 2L6N and 3L5N systems interchangeably for at least a while post-merger.