Edited and corrected according to the prints.
* 1-6 – tower base (including 60ft tall lobby and 5 mechanical floors)
* 20-63 – offices
* 64 – sky lobby
* 65-88 – offices
* 89-90 - Broadcast
* 91-93 - mechanical
* 100-101 – Restaurant
* 102 Observation Deck
* 103-104 – mechanical floors
* 105 - Roof
* 106 - Cooling tower catwalks
* 107-109 Communications Rings
Note: there are no floors 7-19 or 94-99.
Personal note: I did see a "floor 110" on a drawing somewhere awhile back, but have not been able to relocate it yet. (Please note that there are over 1,900 drawings)
One corner of the 3rd floor on the mechanical drawings.