sensors Mode-S transponder
AE223B
ICAO 24-bit transponder address
Currently assigned to 2304 · CASA HC-144A Ocean Sentry
- Hex
- AE223B
- Octal
- 53421073
- Decimal
- 11,412,027
- Tail
- 2304
- Type
- CN35
- Flights observed
- 25
- Distinct callsigns
- 2
- Country
- -
- Last broadcast
- 5d ago
Last known position
Callsign history 2 distinct
Recent flights last 25
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-24 | C2304 | - | May 24, 17:20 UTC | May 24, 17:40 UTC | 20m |
| 2026-05-24 | C2304 | - | May 24, 13:35 UTC | May 24, 14:10 UTC | 35m |
| 2026-05-23 | C2304 | - | May 23, 17:10 UTC | May 23, 17:35 UTC | 25m |
| 2026-05-23 | C2304 | - | May 23, 15:35 UTC | May 23, 15:45 UTC | 10m |
| 2026-05-21 | C2304 | - | May 21, 22:15 UTC | May 22, 02:20 UTC | 4h 5m |
| 2026-05-21 | C2304 | - | May 21, 20:55 UTC | May 21, 21:25 UTC | 30m |
| 2026-05-21 | C2304 | - | May 21, 16:40 UTC | May 21, 17:20 UTC | 40m |
| 2026-05-21 | C2304 | - | May 21, 12:55 UTC | May 21, 16:10 UTC | 3h 15m |
| 2026-05-21 | C2304 | - | May 21, 00:10 UTC | May 21, 02:05 UTC | 1h 55m |
| 2026-05-20 | C2304 | - | May 20, 13:15 UTC | May 20, 18:00 UTC | 4h 45m |
| 2026-05-14 | C2304 | - | May 14, 18:30 UTC | May 14, 18:55 UTC | 25m |
| 2026-05-14 | C2304 | - | May 14, 17:30 UTC | May 14, 17:40 UTC | 10m |
| 2026-05-06 | C2304 | - | May 6, 22:45 UTC | May 7, 01:10 UTC | 2h 25m |
| 2026-05-02 | C2304 | OPF → OPF | May 2, 19:45 UTC | May 2, 21:25 UTC | 1h 40m |
| 2026-05-01 | C23304 | - | May 1, 13:20 UTC | May 1, 15:25 UTC | 2h 5m |
| 2026-04-30 | C2304 | - | Apr 30, 15:30 UTC | Apr 30, 16:55 UTC | 1h 25m |
| 2026-04-30 | C2304 | - | Apr 30, 13:20 UTC | Apr 30, 14:45 UTC | 1h 25m |
| 2026-04-29 | C2304 | - | Apr 29, 21:35 UTC | Apr 29, 21:45 UTC | 10m |
| 2026-04-23 | C2304 | - | Apr 23, 19:35 UTC | Apr 23, 19:45 UTC | 10m |
| 2026-04-23 | C2304 | - | Apr 23, 17:45 UTC | Apr 23, 18:15 UTC | 30m |
| 2026-04-21 | C2304 | - | Apr 21, 22:10 UTC | Apr 22, 02:00 UTC | 3h 50m |
| 2026-04-15 | C2304 | - | Apr 15, 00:55 UTC | Apr 15, 01:10 UTC | 15m |
| 2026-04-14 | C2304 | - | Apr 14, 22:55 UTC | Apr 15, 00:50 UTC | 1h 55m |
| 2026-04-14 | C2304 | - | Apr 14, 21:15 UTC | Apr 14, 22:50 UTC | 1h 35m |
| 2026-04-13 | C2304 | - | Apr 13, 21:20 UTC | Apr 13, 23:25 UTC | 2h 5m |
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 2304 page for operator, model, and routing details .