707 - Ended production 1978
717 - Ended production 2005
727 - Ended production 1984
737 - In production
747 - In production
757 - Ended production 2004
767 - Production ending
777 - In production
787 - In testing
797 - unused
I suppose the 797 can be used for a model to counter Airbus A380, if that segment suddenly heats up.
Or the successor to the 777.
Or maybe Boeing will move to 8x8.