sensors Mode-S transponder
39A054
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-HICU · HAWKER BEECHCRAFT Hawker 750/850
- Hex
- 39A054
- Octal
- 16320124
- Decimal
- 3,776,596
- Country
- FR
- Tail
- F-HICU
- Type
- H25B
- Flights observed
- 50
- Distinct callsigns
- 18
- Country
- FR
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 39A054 falls within the block assigned to France (FR) by ICAO Annex 10, Volume III. Every aircraft registered in France 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| ARL402G | - | 5 | 2026-05-14 |
| ARL034F | - | 5 | 2026-04-17 |
| ARL458G | - | 4 | 2026-05-26 |
| ARL330H | - | 4 | 2026-06-02 |
| ARL096Q | - | 4 | 2026-05-04 |
| ARL940M | - | 3 | 2026-05-30 |
| ARL731L | - | 3 | 2026-04-22 |
| ARL621F | - | 3 | 2026-05-24 |
| ARL182Y | - | 3 | 2026-05-07 |
| ARL015Y | - | 3 | 2026-05-22 |
| ARL902T | - | 2 | 2026-05-10 |
| ARL818H | - | 2 | 2026-05-21 |
| ARL735S | - | 2 | 2026-05-27 |
| ARL257K | - | 2 | 2026-05-23 |
| ARL240A | - | 2 | 2026-04-24 |
| ARL887Z | - | 1 | 2026-05-08 |
| ARL816C | - | 1 | 2026-04-25 |
| ARL769D | - | 1 | 2026-05-01 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | ARL330H | - | Jun 2, 18:55 UTC | Jun 2, 20:15 UTC | 1h 20m |
| 2026-06-02 | ARL330H | - | Jun 2, 13:55 UTC | Jun 2, 16:55 UTC | 3h 0m |
| 2026-06-02 | ARL330H | - | Jun 2, 10:15 UTC | Jun 2, 12:30 UTC | 2h 15m |
| 2026-06-02 | ARL330H | - | Jun 2, 05:30 UTC | Jun 2, 09:15 UTC | 3h 45m |
| 2026-05-30 | ARL940M | - | May 30, 14:25 UTC | May 30, 16:10 UTC | 1h 45m |
| 2026-05-30 | ARL940M | - | May 30, 10:45 UTC | May 30, 13:35 UTC | 2h 50m |
| 2026-05-29 | ARL940M | - | May 29, 15:45 UTC | May 30, 09:45 UTC | 18h 0m |
| 2026-05-27 | ARL735S | FNI → BOD | May 27, 15:45 UTC | May 27, 16:30 UTC | 45m |
| 2026-05-27 | ARL735S | BOD → FNI | May 27, 04:39 UTC | May 27, 13:45 UTC | 9h 5m |
| 2026-05-26 | ARL458G | - | May 26, 16:15 UTC | May 26, 16:59 UTC | 45m |
| 2026-05-26 | ARL458G | - | May 26, 11:24 UTC | May 26, 12:20 UTC | 55m |
| 2026-05-26 | ARL458G | - | May 26, 09:19 UTC | May 26, 10:44 UTC | 1h 25m |
| 2026-05-26 | ARL458G | - | May 26, 05:30 UTC | May 26, 07:40 UTC | 2h 10m |
| 2026-05-24 | ARL621F | TLS → BOD | May 24, 17:30 UTC | May 24, 17:55 UTC | 25m |
| 2026-05-24 | ARL621F | - | May 24, 13:05 UTC | May 24, 15:30 UTC | 2h 25m |
| 2026-05-24 | ARL621F | - | May 24, 07:15 UTC | May 24, 10:25 UTC | 3h 10m |
| 2026-05-23 | ARL257K | AMM → CWL | May 23, 13:15 UTC | May 23, 17:55 UTC | 4h 40m |
| 2026-05-23 | ARL257K | - | May 23, 05:20 UTC | May 23, 09:30 UTC | 4h 10m |
| 2026-05-22 | ARL015Y | - | May 22, 14:45 UTC | May 22, 15:00 UTC | 15m |
| 2026-05-22 | ARL015Y | - | May 22, 10:55 UTC | May 22, 13:55 UTC | 3h 0m |
| 2026-05-22 | ARL015Y | - | May 22, 06:40 UTC | May 22, 09:50 UTC | 3h 10m |
| 2026-05-21 | ARL818H | ATH → LBG | May 21, 12:55 UTC | May 21, 16:15 UTC | 3h 20m |
| 2026-05-21 | ARL818H | - | May 21, 06:10 UTC | May 21, 09:05 UTC | 2h 55m |
| 2026-05-14 | ARL402G | OSL → BOD | May 14, 16:25 UTC | May 14, 18:55 UTC | 2h 30m |
| 2026-05-14 | ARL402G | BOD → OSL | May 14, 12:25 UTC | May 14, 15:05 UTC | 2h 40m |
| 2026-05-14 | ARL402G | - | May 14, 09:15 UTC | May 14, 11:40 UTC | 2h 25m |
| 2026-05-13 | ARL402G | - | May 13, 15:05 UTC | May 14, 11:40 UTC | 20h 35m |
| 2026-05-13 | ARL402G | - | May 13, 13:05 UTC | May 14, 11:40 UTC | 22h 35m |
| 2026-05-10 | ARL902T | - | May 10, 16:34 UTC | May 10, 17:55 UTC | 1h 20m |
| 2026-05-10 | ARL902T | BOD → LIS | May 10, 06:00 UTC | May 10, 12:59 UTC | 7h 0m |
| 2026-05-08 | ARL887Z | BOD → BOD | May 8, 07:34 UTC | May 8, 21:10 UTC | 13h 35m |
| 2026-05-07 | ARL182Y | LBG → BOD | May 7, 19:05 UTC | May 7, 20:05 UTC | 1h 0m |
| 2026-05-07 | ARL182Y | - | May 7, 14:35 UTC | May 7, 17:05 UTC | 2h 30m |
| 2026-05-07 | ARL182Y | - | May 7, 08:20 UTC | May 7, 10:10 UTC | 1h 50m |
| 2026-05-04 | ARL096Q | - | May 4, 15:05 UTC | May 4, 15:50 UTC | 45m |
| 2026-05-04 | ARL096Q | - | May 4, 11:05 UTC | May 4, 12:45 UTC | 1h 40m |
| 2026-05-04 | ARL096Q | - | May 4, 07:15 UTC | May 4, 08:40 UTC | 1h 25m |
| 2026-05-04 | ARL096Q | - | May 4, 04:29 UTC | May 4, 05:25 UTC | 55m |
| 2026-05-01 | ARL769D | - | May 1, 06:00 UTC | May 1, 23:45 UTC | 17h 44m |
| 2026-04-25 | ARL816C | BOD → LBG | Apr 25, 12:25 UTC | Apr 25, 13:15 UTC | 50m |
| 2026-04-24 | ARL240A | - | Apr 24, 16:10 UTC | Apr 24, 16:55 UTC | 45m |
| 2026-04-24 | ARL240A | - | Apr 24, 06:10 UTC | Apr 24, 13:35 UTC | 7h 25m |
| 2026-04-22 | ARL731L | - | Apr 22, 16:30 UTC | Apr 22, 20:55 UTC | 4h 25m |
| 2026-04-22 | ARL731L | - | Apr 22, 10:15 UTC | Apr 22, 14:05 UTC | 3h 50m |
| 2026-04-22 | ARL731L | - | Apr 22, 06:10 UTC | Apr 22, 07:00 UTC | 50m |
| 2026-04-17 | ARL034F | - | Apr 17, 11:50 UTC | Apr 17, 12:35 UTC | 45m |
| 2026-04-16 | ARL034F | - | Apr 16, 13:15 UTC | Apr 16, 15:10 UTC | 1h 55m |
| 2026-04-16 | ARL034F | - | Apr 16, 09:29 UTC | Apr 16, 09:39 UTC | 10m |
| 2026-04-16 | ARL034F | - | Apr 16, 07:09 UTC | Apr 16, 08:09 UTC | 1h 0m |
| 2026-04-16 | ARL034F | - | Apr 16, 06:10 UTC | Apr 16, 07:05 UTC | 55m |
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 F-HICU page for operator, model, and routing details .