sensors Mode-S transponder
AE0181
ICAO 24-bit transponder address
Currently assigned to 84-0139 · LEARJET 35
- Hex
- AE0181
- Octal
- 53400601
- Decimal
- 11,403,649
- Tail
- 84-0139
- Type
- LJ35
No current signal · last broadcast Jul 18, 17:45 UTC
- Flights observed
- 91
- Distinct callsigns
- 20
- Country
- -
- Last broadcast
- Jul 18, 17:45 UTC
Last known position
Callsign history 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SPAR447 | - | 10 | 2026-06-05 |
| SPAR753 | - | 5 | 2026-04-16 |
| SPAR266 | - | 5 | 2026-05-01 |
| SPAR212 | - | 5 | 2026-04-29 |
| RCH572 | - | 5 | 2026-06-18 |
| TRICK45 | - | 4 | 2026-05-29 |
| TRICK22 | - | 4 | 2026-06-30 |
| SPAR956 | - | 4 | 2026-06-26 |
| SPAR873 | - | 4 | 2026-06-10 |
| SPAR845 | - | 4 | 2026-06-14 |
| SPAR725 | - | 4 | 2026-06-26 |
| SPAR179 | - | 4 | 2026-07-10 |
| SPAR957 | - | 3 | 2026-06-23 |
| SPAR752 | - | 3 | 2026-04-13 |
| SPAR348 | - | 3 | 2026-05-03 |
| SPAR244 | - | 3 | 2026-07-18 |
| SPAR111 | - | 3 | 2026-04-18 |
| COUGR26 | - | 3 | 2026-07-15 |
| SWIFT25 | - | 2 | 2026-06-28 |
| SWIFT12 | - | 2 | 2026-06-30 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | SPAR244 | - | Jul 18, 15:55 UTC | Jul 18, 17:45 UTC | 1h 50m |
| 2026-07-18 | SPAR244 | ATL → LFI | Jul 18, 13:50 UTC | Jul 18, 15:10 UTC | 1h 20m |
| 2026-07-18 | SPAR244 | - | Jul 18, 11:45 UTC | Jul 18, 12:50 UTC | 1h 5m |
| 2026-07-17 | SPAR371 | - | Jul 17, 21:20 UTC | Jul 17, 23:10 UTC | 1h 50m |
| 2026-07-17 | SPAR371 | - | Jul 17, 17:55 UTC | Jul 17, 19:30 UTC | 1h 35m |
| 2026-07-15 | SPAR320 | - | Jul 15, 22:25 UTC | Jul 15, 23:55 UTC | 1h 30m |
| 2026-07-15 | SPAR320 | - | Jul 15, 19:45 UTC | Jul 15, 21:05 UTC | 1h 20m |
| 2026-07-15 | COUGR26 | - | Jul 15, 16:30 UTC | Jul 15, 17:35 UTC | 1h 5m |
| 2026-07-15 | COUGR26 | - | Jul 15, 01:10 UTC | Jul 15, 03:45 UTC | 2h 35m |
| 2026-07-14 | COUGR26 | - | Jul 14, 20:05 UTC | Jul 14, 21:15 UTC | 1h 10m |
| 2026-07-10 | SPAR179 | - | Jul 10, 15:25 UTC | Jul 10, 16:40 UTC | 1h 15m |
| 2026-07-09 | SPAR179 | - | Jul 9, 22:35 UTC | Jul 10, 00:05 UTC | 1h 30m |
| 2026-07-09 | SPAR179 | - | Jul 9, 12:10 UTC | Jul 9, 13:35 UTC | 1h 25m |
| 2026-07-08 | SPAR179 | - | Jul 8, 18:40 UTC | Jul 8, 19:45 UTC | 1h 5m |
| 2026-06-30 | SWIFT12 | - | Jun 30, 20:10 UTC | Jun 30, 22:00 UTC | 1h 50m |
| 2026-06-30 | SWIFT12 | - | Jun 30, 13:45 UTC | Jun 30, 16:15 UTC | 2h 30m |
| 2026-06-30 | TRICK22 | - | Jun 30, 01:04 UTC | Jun 30, 02:35 UTC | 1h 31m |
| 2026-06-29 | TRICK22 | - | Jun 29, 20:00 UTC | Jun 29, 22:19 UTC | 2h 20m |
| 2026-06-28 | SWIFT25 | - | Jun 28, 18:34 UTC | Jun 28, 20:19 UTC | 1h 45m |
| 2026-06-28 | SWIFT25 | - | Jun 28, 13:29 UTC | Jun 28, 15:20 UTC | 1h 50m |
| 2026-06-26 | SPAR956 | - | Jun 26, 22:34 UTC | Jun 27, 00:25 UTC | 1h 50m |
| 2026-06-26 | SPAR956 | - | Jun 26, 20:44 UTC | Jun 26, 21:24 UTC | 40m |
| 2026-06-26 | SPAR956 | - | Jun 26, 19:50 UTC | Jun 26, 20:40 UTC | 50m |
| 2026-06-26 | SPAR956 | - | Jun 26, 16:05 UTC | Jun 26, 17:25 UTC | 1h 20m |
| 2026-06-26 | SPAR725 | - | Jun 26, 00:59 UTC | Jun 26, 02:09 UTC | 1h 10m |
| 2026-06-25 | SPAR725 | - | Jun 25, 21:29 UTC | Jun 25, 23:39 UTC | 2h 10m |
| 2026-06-24 | SPAR725 | - | Jun 24, 16:24 UTC | Jun 24, 18:39 UTC | 2h 15m |
| 2026-06-24 | SPAR725 | - | Jun 24, 13:10 UTC | Jun 24, 15:14 UTC | 2h 5m |
| 2026-06-23 | SPAR957 | - | Jun 23, 22:29 UTC | Jun 24, 00:15 UTC | 1h 45m |
| 2026-06-23 | SPAR957 | - | Jun 23, 21:20 UTC | Jun 23, 21:49 UTC | 30m |
| 2026-06-23 | SPAR957 | - | Jun 23, 17:09 UTC | Jun 23, 18:50 UTC | 1h 40m |
| 2026-06-18 | RCH572 | - | Jun 18, 21:50 UTC | Jun 18, 23:35 UTC | 1h 45m |
| 2026-06-18 | RCH572 | - | Jun 18, 17:45 UTC | Jun 18, 19:40 UTC | 1h 55m |
| 2026-06-15 | RCH572 | - | Jun 15, 18:45 UTC | Jun 15, 19:10 UTC | 25m |
| 2026-06-15 | RCH572 | - | Jun 15, 15:00 UTC | Jun 15, 17:15 UTC | 2h 15m |
| 2026-06-15 | RCH572 | - | Jun 15, 12:25 UTC | Jun 15, 13:50 UTC | 1h 25m |
| 2026-06-14 | SPAR845 | - | Jun 14, 22:20 UTC | Jun 15, 00:05 UTC | 1h 45m |
| 2026-06-14 | SPAR845 | - | Jun 14, 02:00 UTC | Jun 14, 04:55 UTC | 2h 55m |
| 2026-06-12 | SPAR845 | - | Jun 12, 13:30 UTC | Jun 12, 16:30 UTC | 3h 0m |
| 2026-06-11 | SPAR845 | - | Jun 11, 14:35 UTC | Jun 11, 16:10 UTC | 1h 35m |
| 2026-06-10 | SPAR873 | - | Jun 10, 18:20 UTC | Jun 10, 19:20 UTC | 1h 0m |
| 2026-06-10 | SPAR873 | SAV → FFO | Jun 10, 15:45 UTC | Jun 10, 17:15 UTC | 1h 30m |
| 2026-06-10 | SPAR873 | - | Jun 10, 12:05 UTC | Jun 10, 13:20 UTC | 1h 15m |
| 2026-06-09 | SPAR873 | - | Jun 9, 19:30 UTC | Jun 9, 20:25 UTC | 55m |
| 2026-06-05 | SPAR447 | - | Jun 5, 20:40 UTC | Jun 5, 22:20 UTC | 1h 40m |
| 2026-06-05 | SPAR447 | - | Jun 5, 17:00 UTC | Jun 5, 19:35 UTC | 2h 35m |
| 2026-06-05 | SPAR447 | - | Jun 5, 13:50 UTC | Jun 5, 15:50 UTC | 2h 0m |
| 2026-06-04 | SPAR447 | TMB → TMB | Jun 4, 12:25 UTC | Jun 4, 14:40 UTC | 2h 15m |
| 2026-06-03 | SPAR447 | - | Jun 3, 20:30 UTC | Jun 3, 21:15 UTC | 45m |
| 2026-06-03 | SPAR447 | - | Jun 3, 16:00 UTC | Jun 3, 18:40 UTC | 2h 40m |
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 84-0139 page for operator, model, and routing details .
Mode-S AE0181 frequently asked
What is Mode-S code AE0181?
AE0181 is an ICAO 24-bit transponder address. Assigned to 84-0139.
Is AE0181 broadcasting right now?
No active broadcast right now. Last signal was Jul 18, 17:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE0181, octal 53400601, decimal 11,403,649.