sensors Mode-S transponder
AC6AAD
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N9CA · CESSNA 525 Citation M2 · operated by COOPER FAMILY MANAGEMENT CO LLC
- Hex
- AC6AAD
- Octal
- 53065255
- Decimal
- 11,299,501
- Country
- US
- Tail
- N9CA
- Type
- C25M
- Flights observed
- 58
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 8d ago
Last known position
Country allocation
The ICAO 24-bit address AC6AAD 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 |
|---|---|---|---|
| N9CA | - | 58 | 2026-07-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | N9CA | FTW → PWA | Jul 25, 18:00 UTC | Jul 25, 18:45 UTC | 45m |
| 2026-07-25 | N9CA | - | Jul 25, 15:20 UTC | Jul 25, 16:00 UTC | 40m |
| 2026-07-18 | N9CA | - | Jul 18, 15:55 UTC | Jul 18, 18:30 UTC | 2h 35m |
| 2026-07-16 | N9CA | - | Jul 16, 01:55 UTC | Jul 16, 04:20 UTC | 2h 25m |
| 2026-07-12 | N9CA | - | Jul 12, 14:45 UTC | Jul 12, 15:25 UTC | 40m |
| 2026-07-11 | N9CA | - | Jul 11, 18:15 UTC | Jul 11, 18:55 UTC | 40m |
| 2026-07-01 | N9CA | - | Jul 1, 13:50 UTC | Jul 1, 16:20 UTC | 2h 30m |
| 2026-06-30 | N9CA | - | Jun 30, 18:30 UTC | Jun 30, 21:05 UTC | 2h 35m |
| 2026-06-30 | N9CA | - | Jun 30, 16:15 UTC | Jun 30, 16:45 UTC | 30m |
| 2026-06-30 | N9CA | - | Jun 30, 00:35 UTC | Jun 30, 01:00 UTC | 25m |
| 2026-06-27 | N9CA | - | Jun 27, 19:49 UTC | Jun 27, 21:50 UTC | 2h 0m |
| 2026-06-26 | N9CA | PWA → SCF | Jun 26, 23:00 UTC | Jun 27, 01:35 UTC | 2h 35m |
| 2026-06-25 | N9CA | - | Jun 25, 14:09 UTC | Jun 25, 16:59 UTC | 2h 50m |
| 2026-06-24 | N9CA | - | Jun 24, 17:59 UTC | Jun 24, 20:30 UTC | 2h 30m |
| 2026-06-20 | N9CA | - | Jun 20, 16:55 UTC | Jun 20, 18:54 UTC | 2h 0m |
| 2026-06-19 | N9CA | - | Jun 19, 17:44 UTC | Jun 19, 19:59 UTC | 2h 15m |
| 2026-06-17 | N9CA | - | Jun 17, 16:05 UTC | Jun 17, 18:50 UTC | 2h 45m |
| 2026-06-17 | N9CA | - | Jun 17, 12:40 UTC | Jun 17, 15:05 UTC | 2h 25m |
| 2026-06-13 | N9CA | COS → PWA | Jun 13, 20:50 UTC | Jun 13, 22:05 UTC | 1h 15m |
| 2026-06-10 | N9CA | - | Jun 10, 13:25 UTC | Jun 10, 14:55 UTC | 1h 30m |
| 2026-06-09 | N9CA | - | Jun 9, 19:00 UTC | Jun 9, 19:25 UTC | 25m |
| 2026-06-09 | N9CA | - | Jun 9, 00:45 UTC | Jun 9, 01:15 UTC | 30m |
| 2026-06-08 | N9CA | DFW → PWA | Jun 8, 00:35 UTC | Jun 8, 01:20 UTC | 45m |
| 2026-06-07 | N9CA | - | Jun 7, 23:05 UTC | Jun 7, 23:50 UTC | 45m |
| 2026-06-07 | N9CA | - | Jun 7, 18:50 UTC | Jun 7, 19:35 UTC | 45m |
| 2026-06-06 | N9CA | - | Jun 6, 18:25 UTC | Jun 6, 19:10 UTC | 45m |
| 2026-06-05 | N9CA | SCF → PWA | Jun 5, 21:25 UTC | Jun 5, 23:40 UTC | 2h 15m |
| 2026-06-05 | N9CA | - | Jun 5, 12:45 UTC | Jun 5, 15:00 UTC | 2h 15m |
| 2026-06-03 | N9CA | ADS → PWA | Jun 3, 20:50 UTC | Jun 3, 21:30 UTC | 40m |
| 2026-06-03 | N9CA | - | Jun 3, 15:10 UTC | Jun 3, 15:50 UTC | 40m |
| 2026-06-02 | N9CA | - | Jun 2, 16:15 UTC | Jun 2, 16:40 UTC | 25m |
| 2026-06-02 | N9CA | - | Jun 2, 00:55 UTC | Jun 2, 01:25 UTC | 30m |
| 2026-05-31 | N9CA | - | May 31, 23:20 UTC | Jun 1, 00:00 UTC | 40m |
| 2026-05-31 | N9CA | - | May 31, 20:45 UTC | May 31, 21:25 UTC | 40m |
| 2026-05-29 | N9CA | ICT → PWA | May 29, 19:45 UTC | May 29, 20:25 UTC | 40m |
| 2026-05-29 | N9CA | - | May 29, 18:15 UTC | May 29, 18:55 UTC | 40m |
| 2026-05-25 | N9CA | SCF → PWA | May 25, 16:15 UTC | May 25, 18:20 UTC | 2h 5m |
| 2026-05-23 | N9CA | PWA → SCF | May 23, 22:10 UTC | May 24, 00:30 UTC | 2h 20m |
| 2026-05-16 | N9CA | - | May 16, 20:10 UTC | May 16, 20:20 UTC | 10m |
| 2026-05-16 | N9CA | - | May 16, 18:25 UTC | May 16, 19:40 UTC | 1h 15m |
| 2026-05-14 | N9CA | - | May 14, 13:45 UTC | May 14, 15:35 UTC | 1h 50m |
| 2026-05-12 | N9CA | - | May 12, 17:20 UTC | May 12, 17:45 UTC | 25m |
| 2026-05-11 | N9CA | - | May 11, 18:50 UTC | May 11, 20:55 UTC | 2h 5m |
| 2026-05-11 | N9CA | - | May 11, 16:00 UTC | May 11, 18:15 UTC | 2h 16m |
| 2026-05-05 | N9CA | - | May 5, 16:10 UTC | May 5, 16:45 UTC | 35m |
| 2026-05-05 | N9CA | - | May 5, 00:25 UTC | May 5, 00:55 UTC | 30m |
| 2026-05-02 | N9CA | - | May 2, 21:00 UTC | May 2, 22:55 UTC | 1h 55m |
| 2026-04-28 | N9CA | PWA → SCF | Apr 28, 14:40 UTC | Apr 28, 17:35 UTC | 2h 55m |
| 2026-04-26 | N9CA | PWA → PWA | Apr 26, 19:05 UTC | Apr 26, 20:55 UTC | 1h 50m |
| 2026-04-21 | N9CA | - | Apr 21, 16:01 UTC | Apr 21, 16:31 UTC | 30m |
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 N9CA page for operator, model, and routing details .