sensors Mode-S transponder
AE01A1
ICAO 24-bit transponder address
Currently assigned to 86-0374 · LEARJET 35
- Hex
- AE01A1
- Octal
- 53400641
- Decimal
- 11,403,681
- Tail
- 86-0374
- Type
- LJ35
No current signal · last broadcast 12h ago
- Flights observed
- 61
- Distinct callsigns
- 17
- Country
- -
- Last broadcast
- 12h ago
Last known position
Callsign history 17 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SPAR759 | - | 6 | 2026-04-17 |
| SPAR528 | - | 5 | 2026-05-20 |
| SPAR403 | - | 5 | 2026-05-13 |
| SPAR267 | - | 5 | 2026-04-30 |
| SPAR618 | - | 4 | 2026-05-21 |
| SPAR443 | - | 4 | 2026-05-16 |
| SPAR441 | - | 4 | 2026-05-08 |
| COUGR56 | - | 4 | 2026-04-16 |
| TRICK45 | - | 3 | 2026-04-22 |
| TRICK13 | - | 3 | 2026-04-13 |
| SPAR798 | - | 3 | 2026-04-20 |
| SPAR653 | - | 3 | 2026-05-27 |
| SPAR390 | - | 3 | 2026-05-01 |
| SPAR346 | - | 3 | 2026-05-03 |
| SPAR300 | - | 3 | 2026-04-23 |
| SPAR792 | - | 2 | 2026-06-02 |
| COUGR92 | - | 1 | 2026-04-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | SPAR792 | - | Jun 2, 20:10 UTC | Jun 2, 20:45 UTC | 35m |
| 2026-06-02 | SPAR792 | - | Jun 2, 17:10 UTC | Jun 2, 18:55 UTC | 1h 45m |
| 2026-05-27 | SPAR653 | - | May 27, 21:25 UTC | May 27, 23:10 UTC | 1h 45m |
| 2026-05-27 | SPAR653 | - | May 27, 20:10 UTC | May 27, 20:40 UTC | 30m |
| 2026-05-27 | SPAR653 | - | May 27, 17:05 UTC | May 27, 18:40 UTC | 1h 35m |
| 2026-05-21 | SPAR618 | - | May 21, 19:10 UTC | May 21, 20:25 UTC | 1h 15m |
| 2026-05-21 | SPAR618 | - | May 21, 00:40 UTC | May 21, 02:05 UTC | 1h 25m |
| 2026-05-20 | SPAR618 | - | May 20, 21:05 UTC | May 20, 23:50 UTC | 2h 45m |
| 2026-05-20 | SPAR618 | - | May 20, 16:20 UTC | May 20, 18:30 UTC | 2h 10m |
| 2026-05-20 | SPAR528 | - | May 20, 00:40 UTC | May 20, 02:05 UTC | 1h 25m |
| 2026-05-19 | SPAR528 | - | May 19, 20:25 UTC | May 19, 23:20 UTC | 2h 55m |
| 2026-05-19 | SPAR528 | - | May 19, 17:20 UTC | May 19, 19:10 UTC | 1h 50m |
| 2026-05-18 | SPAR528 | - | May 18, 13:05 UTC | May 18, 14:45 UTC | 1h 40m |
| 2026-05-17 | SPAR528 | - | May 17, 15:05 UTC | May 17, 16:40 UTC | 1h 35m |
| 2026-05-16 | SPAR443 | - | May 16, 17:45 UTC | May 16, 19:30 UTC | 1h 45m |
| 2026-05-16 | SPAR443 | COS → ADW | May 16, 00:45 UTC | May 16, 03:55 UTC | 3h 10m |
| 2026-05-14 | SPAR443 | - | May 14, 21:30 UTC | May 15, 01:00 UTC | 3h 30m |
| 2026-05-14 | SPAR443 | - | May 14, 18:40 UTC | May 14, 20:20 UTC | 1h 40m |
| 2026-05-13 | SPAR403 | - | May 13, 00:40 UTC | May 13, 01:50 UTC | 1h 10m |
| 2026-05-12 | SPAR403 | - | May 12, 22:25 UTC | May 12, 23:40 UTC | 1h 15m |
| 2026-05-12 | SPAR403 | LAS → OKC | May 12, 19:30 UTC | May 12, 21:35 UTC | 2h 5m |
| 2026-05-11 | SPAR403 | - | May 11, 18:50 UTC | May 11, 21:25 UTC | 2h 35m |
| 2026-05-11 | SPAR403 | - | May 11, 14:55 UTC | May 11, 16:30 UTC | 1h 35m |
| 2026-05-08 | SPAR441 | - | May 8, 01:49 UTC | May 8, 03:24 UTC | 1h 35m |
| 2026-05-07 | SPAR441 | VBG → COS | May 7, 22:05 UTC | May 8, 00:20 UTC | 2h 15m |
| 2026-05-06 | SPAR441 | - | May 6, 20:15 UTC | May 6, 22:35 UTC | 2h 20m |
| 2026-05-06 | SPAR441 | - | May 6, 16:40 UTC | May 6, 18:30 UTC | 1h 49m |
| 2026-05-03 | SPAR346 | - | May 3, 23:50 UTC | May 4, 01:44 UTC | 1h 55m |
| 2026-05-03 | SPAR346 | - | May 3, 21:14 UTC | May 3, 22:15 UTC | 1h 0m |
| 2026-05-03 | SPAR346 | - | May 3, 18:40 UTC | May 3, 19:30 UTC | 50m |
| 2026-05-01 | SPAR390 | - | May 1, 18:30 UTC | May 1, 20:35 UTC | 2h 5m |
| 2026-05-01 | SPAR390 | - | May 1, 16:25 UTC | May 1, 17:25 UTC | 1h 0m |
| 2026-05-01 | SPAR390 | - | May 1, 13:15 UTC | May 1, 14:40 UTC | 1h 25m |
| 2026-04-30 | SPAR267 | - | Apr 30, 21:05 UTC | Apr 30, 22:50 UTC | 1h 45m |
| 2026-04-30 | SPAR267 | - | Apr 30, 17:35 UTC | Apr 30, 19:25 UTC | 1h 50m |
| 2026-04-29 | SPAR267 | HSV → STL | Apr 29, 22:20 UTC | Apr 29, 23:20 UTC | 59m |
| 2026-04-28 | SPAR267 | - | Apr 28, 19:40 UTC | Apr 28, 21:19 UTC | 1h 40m |
| 2026-04-28 | SPAR267 | - | Apr 28, 16:40 UTC | Apr 28, 18:10 UTC | 1h 30m |
| 2026-04-23 | SPAR300 | - | Apr 23, 23:35 UTC | Apr 24, 01:15 UTC | 1h 40m |
| 2026-04-23 | SPAR300 | - | Apr 23, 21:20 UTC | Apr 23, 22:25 UTC | 1h 5m |
| 2026-04-23 | SPAR300 | - | Apr 23, 19:05 UTC | Apr 23, 19:55 UTC | 50m |
| 2026-04-22 | TRICK45 | - | Apr 22, 19:30 UTC | Apr 22, 21:10 UTC | 1h 40m |
| 2026-04-22 | TRICK45 | - | Apr 22, 16:55 UTC | Apr 22, 17:25 UTC | 30m |
| 2026-04-22 | TRICK45 | - | Apr 22, 15:10 UTC | Apr 22, 16:00 UTC | 50m |
| 2026-04-20 | SPAR798 | - | Apr 20, 20:20 UTC | Apr 20, 22:35 UTC | 2h 15m |
| 2026-04-19 | SPAR798 | - | Apr 19, 21:10 UTC | Apr 19, 22:05 UTC | 55m |
| 2026-04-19 | SPAR798 | - | Apr 19, 18:30 UTC | Apr 19, 19:20 UTC | 50m |
| 2026-04-17 | SPAR759 | - | Apr 17, 03:20 UTC | Apr 17, 03:45 UTC | 25m |
| 2026-04-17 | SPAR759 | - | Apr 17, 01:55 UTC | Apr 17, 03:15 UTC | 1h 20m |
| 2026-04-16 | SPAR759 | - | Apr 16, 23:20 UTC | Apr 17, 00:40 UTC | 1h 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 86-0374 page for operator, model, and routing details .
Mode-S AE01A1 frequently asked
What is Mode-S code AE01A1?
AE01A1 is an ICAO 24-bit transponder address. Assigned to 86-0374.
Is AE01A1 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE01A1, octal 53400641, decimal 11,403,681.