sensors Mode-S transponder
A1DF17
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N22EL · CESSNA 501 Citation 1SP · operated by MUSTANG JETS LLC
- Hex
- A1DF17
- Octal
- 50357427
- Decimal
- 10,608,407
- Country
- US
- Tail
- N22EL
- Type
- C501
- Flights observed
- 35
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- Jul 25, 01:10 UTC
Last known position
Country allocation
The ICAO 24-bit address A1DF17 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 |
|---|---|---|---|
| N22EL | - | 35 | 2026-07-25 |
Recent flights last 35
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | N22EL | - | Jul 25, 00:10 UTC | Jul 25, 01:10 UTC | 1h 0m |
| 2026-07-23 | N22EL | - | Jul 23, 20:00 UTC | Jul 23, 20:50 UTC | 50m |
| 2026-07-22 | N22EL | - | Jul 22, 20:45 UTC | Jul 22, 21:35 UTC | 50m |
| 2026-07-22 | N22EL | - | Jul 22, 14:20 UTC | Jul 22, 15:10 UTC | 50m |
| 2026-07-20 | N22EL | - | Jul 20, 00:15 UTC | Jul 20, 01:10 UTC | 55m |
| 2026-07-19 | N22EL | - | Jul 19, 14:25 UTC | Jul 19, 15:15 UTC | 50m |
| 2026-07-17 | N22EL | - | Jul 17, 23:45 UTC | Jul 18, 00:35 UTC | 50m |
| 2026-07-17 | N22EL | - | Jul 17, 12:30 UTC | Jul 17, 13:29 UTC | 1h 0m |
| 2026-07-12 | N22EL | - | Jul 12, 12:10 UTC | Jul 12, 14:40 UTC | 2h 30m |
| 2026-07-07 | N22EL | - | Jul 7, 11:50 UTC | Jul 7, 14:25 UTC | 2h 35m |
| 2026-07-04 | N22EL | - | Jul 4, 01:20 UTC | Jul 4, 02:10 UTC | 50m |
| 2026-07-02 | N22EL | - | Jul 2, 20:40 UTC | Jul 2, 21:30 UTC | 50m |
| 2026-06-27 | N22EL | - | Jun 27, 00:55 UTC | Jun 27, 01:44 UTC | 50m |
| 2026-06-25 | N22EL | - | Jun 25, 19:34 UTC | Jun 25, 20:19 UTC | 45m |
| 2026-06-20 | N22EL | - | Jun 20, 00:49 UTC | Jun 20, 01:39 UTC | 50m |
| 2026-06-19 | N22EL | - | Jun 19, 16:29 UTC | Jun 19, 16:44 UTC | 15m |
| 2026-06-19 | N22EL | - | Jun 19, 15:39 UTC | Jun 19, 16:25 UTC | 45m |
| 2026-06-14 | N22EL | - | Jun 14, 00:25 UTC | Jun 14, 01:20 UTC | 55m |
| 2026-06-13 | N22EL | - | Jun 13, 20:20 UTC | Jun 13, 21:10 UTC | 50m |
| 2026-06-06 | N22EL | - | Jun 6, 01:00 UTC | Jun 6, 01:50 UTC | 50m |
| 2026-06-04 | N22EL | - | Jun 4, 20:25 UTC | Jun 4, 21:20 UTC | 55m |
| 2026-05-30 | N22EL | - | May 30, 00:20 UTC | May 30, 01:15 UTC | 55m |
| 2026-05-28 | N22EL | - | May 28, 20:05 UTC | May 28, 20:55 UTC | 50m |
| 2026-05-19 | N22EL | - | May 19, 19:25 UTC | May 19, 20:15 UTC | 50m |
| 2026-05-19 | N22EL | - | May 19, 12:55 UTC | May 19, 13:45 UTC | 50m |
| 2026-05-16 | N22EL | - | May 16, 15:16 UTC | May 16, 16:05 UTC | 50m |
| 2026-05-14 | N22EL | - | May 14, 16:25 UTC | May 14, 17:15 UTC | 50m |
| 2026-05-09 | N22EL | - | May 9, 15:30 UTC | May 9, 16:20 UTC | 50m |
| 2026-05-07 | N22EL | - | May 7, 18:15 UTC | May 7, 19:05 UTC | 50m |
| 2026-05-01 | N22EL | - | May 1, 23:55 UTC | May 2, 00:50 UTC | 55m |
| 2026-05-01 | N22EL | - | May 1, 12:55 UTC | May 1, 13:45 UTC | 50m |
| 2026-04-27 | N22EL | - | Apr 27, 22:50 UTC | Apr 27, 23:40 UTC | 50m |
| 2026-04-27 | N22EL | - | Apr 27, 15:15 UTC | Apr 27, 15:55 UTC | 40m |
| 2026-04-18 | N22EL | - | Apr 18, 00:40 UTC | Apr 18, 01:20 UTC | 40m |
| 2026-04-16 | N22EL | - | Apr 16, 22:24 UTC | Apr 16, 23:10 UTC | 45m |
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 N22EL page for operator, model, and routing details .