sensors Mode-S transponder
AE1F84
ICAO 24-bit transponder address
Currently assigned to 09-72117 · Airbus Helicopters UH-72A Lakota
- Hex
- AE1F84
- Octal
- 53417604
- Decimal
- 11,411,332
- Tail
- 09-72117
- Type
- EC45
- Flights observed
- 17
- Distinct callsigns
- 12
- Country
- -
- Last broadcast
- 12d ago
Last known position
Callsign history 12 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| MESSY62 | - | 4 | 2026-04-16 |
| YOGI24 | - | 2 | 2026-05-18 |
| WEIRD23 | - | 2 | 2026-05-13 |
| YOGI21 | - | 1 | 2026-05-21 |
| SUPRT80 | - | 1 | 2026-05-21 |
| SQUIB99 | - | 1 | 2026-04-23 |
| SQUIB39 | - | 1 | 2026-04-14 |
| SAVER07 | - | 1 | 2026-04-22 |
| R72117 | - | 1 | 2026-05-16 |
| LOCO99 | - | 1 | 2026-05-14 |
| JOKEY47 | - | 1 | 2026-05-08 |
| BELLS31 | - | 1 | 2026-04-29 |
Recent flights last 17
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-21 | YOGI21 | - | May 21, 18:40 UTC | May 21, 20:45 UTC | 2h 5m |
| 2026-05-21 | SUPRT80 | - | May 21, 00:45 UTC | May 21, 01:00 UTC | 15m |
| 2026-05-18 | YOGI24 | - | May 18, 20:50 UTC | May 18, 21:45 UTC | 55m |
| 2026-05-18 | YOGI24 | - | May 18, 19:10 UTC | May 18, 19:20 UTC | 10m |
| 2026-05-16 | R72117 | - | May 16, 02:55 UTC | May 16, 03:05 UTC | 10m |
| 2026-05-14 | LOCO99 | - | May 14, 12:15 UTC | May 14, 13:55 UTC | 1h 40m |
| 2026-05-13 | WEIRD23 | - | May 13, 14:25 UTC | May 13, 15:50 UTC | 1h 25m |
| 2026-05-13 | WEIRD23 | - | May 13, 12:25 UTC | May 13, 13:50 UTC | 1h 25m |
| 2026-05-08 | JOKEY47 | - | May 8, 12:44 UTC | May 8, 13:05 UTC | 20m |
| 2026-04-29 | BELLS31 | - | Apr 29, 13:00 UTC | Apr 29, 13:45 UTC | 45m |
| 2026-04-23 | SQUIB99 | - | Apr 23, 12:35 UTC | Apr 23, 14:10 UTC | 1h 35m |
| 2026-04-22 | SAVER07 | - | Apr 22, 13:20 UTC | Apr 22, 13:50 UTC | 30m |
| 2026-04-16 | MESSY62 | - | Apr 16, 15:15 UTC | Apr 16, 15:45 UTC | 30m |
| 2026-04-16 | MESSY62 | - | Apr 16, 14:40 UTC | Apr 16, 15:10 UTC | 30m |
| 2026-04-16 | MESSY62 | - | Apr 16, 13:15 UTC | Apr 16, 14:05 UTC | 50m |
| 2026-04-16 | MESSY62 | - | Apr 16, 12:45 UTC | Apr 16, 13:05 UTC | 20m |
| 2026-04-14 | SQUIB39 | - | Apr 14, 13:20 UTC | Apr 14, 13:40 UTC | 20m |
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 09-72117 page for operator, model, and routing details .