Not exchanged per se, but yes, they're gone for razor blades. I can probably manage a fleet list, it's not too extensive right now: 1 BB on order, 1 CDBB, 4 CLs, 2 DDs with 2 on order, and 2 subs with two on order.
[Whoops, forgot: the two subs are tied up alongside at the moment, the crews are in Germany training on P-1, getting ready to sail it to Peru late in this quarter.]