A fleet of at least three, possibly four two-seater F-16D serve at Area 51 as chase aircraft and for security. The table below shows the serial numbers of these aircraft.
| Serial # | Code | Type | Notes |
| 86-0052 | (none) | F-16D | 02/2019 last verified per Scramble 11/2017 photographed in Star Wars Canyon with IRST pod |
| 87-0364 | (none) | F-16D | 09/2022 photographed in R-2508 "Sidewinder"; possibly based at TTR |
| 87-0383 | ? | F-16D | 12/2024 photographed in R-2508 "Sidewinder" |
| 88-0152 | ? | F-16D | 08/02/23 verified during AAR in NTTR as SABRE01 with KNIGHT01 from TTR |