sensors Mode-S transponder
406178
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-JONL · CSA PS-28 Cruiser
- Hex
- 406178
- Octal
- 20060570
- Decimal
- 4,219,256
- Country
- GB
- Tail
- G-JONL
- Type
- CRUZ
- Flights observed
- 26
- Distinct callsigns
- 7
- Country
- GB
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address 406178 falls within the block assigned to United Kingdom (GB) by ICAO Annex 10, Volume III. Every aircraft registered in United Kingdom 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 7 distinct
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | EXS3HE | PRG → MAN | Jul 26, 06:05 UTC | Jul 26, 11:05 UTC | 5h 1m |
| 2026-07-25 | EXS5BC | MAN → ADB | Jul 25, 12:15 UTC | Jul 26, 11:05 UTC | 22h 51m |
| 2026-07-20 | EXS77AW | PMI → MAN | Jul 20, 06:35 UTC | Jul 20, 11:55 UTC | 5h 20m |
| 2026-07-17 | - | - | Jul 17, 17:55 UTC | Jul 18, 15:40 UTC | 21h 46m |
| 2026-07-16 | GJONL | - | Jul 16, 18:25 UTC | Jul 16, 19:10 UTC | 45m |
| 2026-07-12 | EXS54JK | - | Jul 12, 06:40 UTC | Jul 12, 11:20 UTC | 4h 40m |
| 2026-07-11 | EXS54JK | - | Jul 11, 12:20 UTC | Jul 12, 11:20 UTC | 23h 0m |
| 2026-06-27 | - | - | Jun 27, 07:19 UTC | Jun 27, 07:30 UTC | 10m |
| 2026-06-24 | GJONL | - | Jun 24, 14:20 UTC | Jun 24, 15:29 UTC | 1h 10m |
| 2026-06-24 | GJONL | - | Jun 24, 09:34 UTC | Jun 24, 10:35 UTC | 1h 0m |
| 2026-06-19 | GJONL | - | Jun 19, 13:39 UTC | Jun 19, 14:24 UTC | 45m |
| 2026-06-19 | GJONL | - | Jun 19, 10:14 UTC | Jun 19, 10:50 UTC | 35m |
| 2026-06-02 | - | - | Jun 2, 08:05 UTC | Jun 2, 13:40 UTC | 5h 35m |
| 2026-05-30 | EXS5AQ | DLM → GLA | May 30, 23:25 UTC | May 31, 10:35 UTC | 11h 10m |
| 2026-05-29 | EXS102 | PMI → GLA | May 29, 18:00 UTC | May 29, 22:50 UTC | 4h 50m |
| 2026-05-25 | - | - | May 25, 17:35 UTC | May 26, 06:44 UTC | 13h 10m |
| 2026-05-23 | EXS5AQ | DLM → GLA | May 23, 17:35 UTC | May 24, 10:45 UTC | 17h 10m |
| 2026-05-22 | GJONL | - | May 22, 13:40 UTC | May 22, 15:00 UTC | 1h 20m |
| 2026-05-22 | GJONL | - | May 22, 09:40 UTC | May 22, 11:35 UTC | 1h 55m |
| 2026-05-02 | - | - | May 2, 17:55 UTC | May 2, 23:20 UTC | 5h 25m |
| 2026-05-01 | - | - | May 1, 22:30 UTC | May 2, 18:00 UTC | 19h 30m |
| 2026-05-01 | - | - | May 1, 17:35 UTC | May 1, 22:40 UTC | 5h 5m |
| 2026-04-29 | GJONL | - | Apr 29, 13:50 UTC | Apr 29, 14:25 UTC | 35m |
| 2026-04-29 | GJONL | - | Apr 29, 10:05 UTC | Apr 29, 11:05 UTC | 1h 0m |
| 2026-04-23 | GJONL | - | Apr 23, 16:05 UTC | Apr 23, 16:45 UTC | 40m |
| 2026-04-23 | GJONL | - | Apr 23, 15:00 UTC | Apr 23, 15:25 UTC | 25m |
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 G-JONL page for operator, model, and routing details .