| | N557N | Private | Unallocated | -0001 | Unallocated frame, notes 'Ryan C1', if known please update accordingly |
| | N401CX | Private | Unallocated | -0001 | Unallocated frame, notes 'Thatcher Aircraft CX4', if known please update accordingly |
| | N32405 | Private | Unallocated | -0001 | Unallocated frame, notes 'Combs 40', if known please update accordingly |
| | 145459 | Private | Unallocated | -0001 | Unallocated frame, notes 'Ling-Temco-Vought F-8L Crusader', if known please update accordingly. temporally withdrawn from use. Amarg |
| | N3981 | Private | Unallocated | 1940 | Unallocated frame, notes 'G Elias Brothers Inc E.C. 1', if known please update accordingly |
| | N33RJ | Private | Unallocated | 1981 | Unallocated frame, notes 'Johnson Richard L VARIEZE', if known please update accordingly |
| | N91RT | Private | Unallocated | 1994 | Unallocated frame, notes 'Trickel R A TR-4 ', if known please update accordingly |
| | N422DH | Private | Unallocated | 2005 | Unallocated frame, notes 'Homebuilt MARQUART MA-5 CHARGR', if known please update accordingly. Owner/Operator Hughes Donald R |
| | N10721 | Private | Unallocated | 2007 | Unallocated frame, notes 'Homebuilt COUPE 90-B', if known please update accordingly. Owner/Operator Antique Preservation Association Of Greenfield |
| | N988DR | Private | Unallocated | 2007 | Unallocated frame, notes 'Homebuilt ZMAX OPEN SPORT ', if known please update accordingly. Owner/Operator Cole Thomas D |
| | N329CD | Private | Unallocated | 2008 | Unallocated frame, notes 'Steinbacher Peter J SPRINT', if known please update accordingly |
| | N401EX | Private | Unallocated | 2015 | Unallocated frame, notes 'Homebuilt VISION EX ', if known please update accordingly. Owner/Operator Laudani Alan A |
| | N9502A | Private | Unallocated | 2020 | Unallocated frame, notes 'Homebuilt SONERAI II', if known please update accordingly. Owner/Operator Bone Robert R |