sensors Mode-S transponder
ADEE45
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N997SS · CESSNA 560XL Citation XLS · operated by B29 UPS & DOWNS LLC
- Hex
- ADEE45
- Octal
- 53367105
- Decimal
- 11,398,725
- Country
- US
- Tail
- N997SS
- Type
- C56X
- Flights observed
- 29
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 25d ago
Last known position
Country allocation
The ICAO 24-bit address ADEE45 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.
Callsign history 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| N997SS | - | 29 | 2026-07-24 |
Recent flights last 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | N997SS | - | Jul 24, 22:05 UTC | Jul 24, 22:55 UTC | 50m |
| 2026-07-23 | N997SS | - | Jul 23, 17:25 UTC | Jul 23, 18:15 UTC | 50m |
| 2026-07-23 | N997SS | - | Jul 23, 16:35 UTC | Jul 23, 17:05 UTC | 30m |
| 2026-07-22 | N997SS | ADS → OKC | Jul 22, 22:20 UTC | Jul 22, 22:50 UTC | 30m |
| 2026-07-22 | N997SS | GLE → ADS | Jul 22, 12:05 UTC | Jul 22, 12:20 UTC | 15m |
| 2026-07-21 | N997SS | - | Jul 21, 18:55 UTC | Jul 21, 20:40 UTC | 1h 45m |
| 2026-07-21 | N997SS | - | Jul 21, 11:10 UTC | Jul 21, 13:00 UTC | 1h 50m |
| 2026-07-17 | N997SS | - | Jul 17, 21:25 UTC | Jul 17, 22:10 UTC | 45m |
| 2026-07-17 | N997SS | - | Jul 17, 20:25 UTC | Jul 17, 20:50 UTC | 25m |
| 2026-07-16 | N997SS | - | Jul 16, 21:55 UTC | Jul 16, 22:30 UTC | 35m |
| 2026-07-16 | N997SS | - | Jul 16, 11:10 UTC | Jul 16, 13:00 UTC | 1h 50m |
| 2026-07-10 | N997SS | - | Jul 10, 20:20 UTC | Jul 10, 20:50 UTC | 30m |
| 2026-07-10 | N997SS | - | Jul 10, 11:45 UTC | Jul 10, 12:20 UTC | 35m |
| 2026-07-09 | N997SS | - | Jul 9, 22:25 UTC | Jul 9, 23:15 UTC | 50m |
| 2026-07-09 | N997SS | - | Jul 9, 17:45 UTC | Jul 9, 18:45 UTC | 1h 0m |
| 2026-07-09 | N997SS | - | Jul 9, 12:35 UTC | Jul 9, 13:40 UTC | 1h 5m |
| 2026-07-07 | N997SS | - | Jul 7, 21:25 UTC | Jul 7, 22:05 UTC | 40m |
| 2026-07-06 | N997SS | - | Jul 6, 20:25 UTC | Jul 6, 21:05 UTC | 40m |
| 2026-04-23 | N997SS | - | Apr 23, 14:10 UTC | Apr 23, 15:00 UTC | 50m |
| 2026-04-21 | N997SS | - | Apr 21, 22:25 UTC | Apr 21, 23:55 UTC | 1h 30m |
| 2026-04-21 | N997SS | - | Apr 21, 17:45 UTC | Apr 21, 18:20 UTC | 35m |
| 2026-04-20 | N997SS | - | Apr 20, 21:20 UTC | Apr 21, 18:20 UTC | 21h 0m |
| 2026-04-20 | N997SS | - | Apr 20, 19:40 UTC | Apr 21, 18:20 UTC | 22h 40m |
| 2026-04-20 | N997SS | - | Apr 20, 12:40 UTC | Apr 20, 14:50 UTC | 2h 10m |
| 2026-04-17 | N997SS | - | Apr 17, 19:25 UTC | Apr 17, 19:35 UTC | 10m |
| 2026-04-17 | N997SS | - | Apr 17, 18:45 UTC | Apr 17, 19:20 UTC | 35m |
| 2026-04-16 | N997SS | - | Apr 16, 11:15 UTC | Apr 16, 12:09 UTC | 55m |
| 2026-04-13 | N997SS | - | Apr 13, 00:20 UTC | Apr 13, 00:50 UTC | 30m |
| 2026-04-13 | N997SS | - | Apr 13, 00:00 UTC | Apr 13, 00:50 UTC | 50m |
About Mode-S
A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.
Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.
Prefer a tail-number view? See the N997SS page for operator, model, and routing details .