After reviewing the numbers on the F-16.net database there’s 532 total active F-35s in US inventory, not 650 as I stated earlier. The differene came down to current orders.
Regardless, that number will be approaching 600 by year end, and all of the other F-35s are delivered to allied nations that fight with the US.
Before year end, the US will have well over 700 5th Gen fighters.
The US also has another 94 F-35s on order currently.