| Tail Number / N-Number | N644S |
| Manufacturer | DIAMOND AIRCRAFT IND INC |
| Model | DA20-C1 |
| Year Built | 2007 |
| Manufacturer's Serial Number | C0453 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-240-B |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 125 hp (93 kW) |
| Type of Registrant | LLC |
| Owner Name | GUMPS LLC |
| Street | 206 5TH ST # 2 |
| City | JERSEY CITY |
| State | NJ |
| Zip Code | 07302-2402 |
| Region | Eastern |
| County | Hudson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2007-09-27 |
| Certificate Issue Date | 2019-10-08 |
| Last Action Date | 2022-05-16 |
| Expiration Date | 2029-10-31 |
| Status | Valid Registration |
| Mode S Code | 52072647 |
| Mode S Code Hex | A875A7 |