sensors Mode-S transponder
40617B
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-CGEO · CSA PS-28 Cruiser
- Hex
- 40617B
- Octal
- 20060573
- Decimal
- 4,219,259
- Country
- GB
- Tail
- G-CGEO
- Type
- CRUZ
- Flights observed
- 28
- Distinct callsigns
- 14
- Country
- GB
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 40617B 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| EXS8ZQ | - | 3 | 2026-07-02 |
| EXS4X | - | 3 | 2026-07-11 |
| EXS145 | - | 3 | 2026-07-14 |
| EXS6H | Jet2.com | 2 | 2026-06-10 |
| EXS3725 | - | 2 | 2026-06-14 |
| EXS1KP | Jet2.com | 2 | 2026-07-10 |
| EXS124 | - | 2 | 2026-06-27 |
| EXS102 | Jet2.com | 2 | 2026-06-21 |
| EXS946K | Jet2.com | 1 | 2026-07-03 |
| EXS92EL | - | 1 | 2026-06-18 |
| EXS82P | Jet2.com | 1 | 2026-06-12 |
| EXS6AH | - | 1 | 2026-07-07 |
| EXS4T | Jet2.com | 1 | 2026-07-10 |
| EXS191 | Jet2.com | 1 | 2026-07-05 |
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | EXS145 | - | Jul 14, 06:35 UTC | Jul 14, 06:45 UTC | 10m |
| 2026-07-11 | EXS4X | - | Jul 11, 17:50 UTC | Jul 12, 06:15 UTC | 12h 25m |
| 2026-07-10 | EXS4T | GLA → LCA | Jul 10, 23:45 UTC | Jul 11, 18:00 UTC | 18h 15m |
| 2026-07-10 | EXS1KP | GLA → PMI | Jul 10, 18:50 UTC | Jul 11, 18:00 UTC | 23h 10m |
| 2026-07-07 | EXS6AH | - | Jul 7, 23:10 UTC | Jul 8, 13:10 UTC | 14h 0m |
| 2026-07-05 | EXS191 | GLA → GRO | Jul 5, 06:05 UTC | Jul 5, 06:15 UTC | 10m |
| 2026-07-03 | EXS946K | GLA → ALC | Jul 3, 16:25 UTC | Jul 4, 01:10 UTC | 8h 45m |
| 2026-07-02 | EXS8ZQ | - | Jul 2, 22:55 UTC | Jul 3, 19:55 UTC | 21h 0m |
| 2026-07-02 | EXS8ZQ | - | Jul 2, 17:55 UTC | Jul 3, 16:30 UTC | 22h 35m |
| 2026-07-02 | EXS8ZQ | - | Jul 2, 15:10 UTC | Jul 2, 23:10 UTC | 8h 0m |
| 2026-06-27 | EXS124 | - | Jun 27, 21:15 UTC | Jun 28, 06:44 UTC | 9h 30m |
| 2026-06-26 | EXS124 | - | Jun 26, 23:09 UTC | Jun 27, 21:25 UTC | 22h 15m |
| 2026-06-26 | EXS1KP | GLA → PMI | Jun 26, 17:59 UTC | Jun 26, 23:15 UTC | 5h 15m |
| 2026-06-21 | EXS102 | PMI → GLA | Jun 21, 17:45 UTC | Jun 22, 10:55 UTC | 17h 10m |
| 2026-06-21 | EXS102 | PMI → GLA | Jun 21, 08:35 UTC | Jun 22, 06:29 UTC | 21h 55m |
| 2026-06-20 | EXS4X | LCA → GLA | Jun 20, 22:59 UTC | Jun 21, 22:44 UTC | 23h 45m |
| 2026-06-20 | EXS4X | LCA → GLA | Jun 20, 17:34 UTC | Jun 21, 08:44 UTC | 15h 10m |
| 2026-06-18 | EXS92EL | - | Jun 18, 07:15 UTC | Jun 18, 07:25 UTC | 10m |
| 2026-06-14 | EXS3725 | - | Jun 14, 07:00 UTC | Jun 14, 12:35 UTC | 5h 35m |
| 2026-06-13 | EXS3725 | - | Jun 13, 12:00 UTC | Jun 14, 07:10 UTC | 19h 10m |
| 2026-06-13 | EXS145 | GLA → MAH | Jun 13, 07:00 UTC | Jun 13, 12:05 UTC | 5h 5m |
| 2026-06-12 | EXS145 | GLA → MAH | Jun 12, 10:55 UTC | Jun 13, 07:05 UTC | 20h 9m |
| 2026-06-12 | EXS82P | GLA → TFS | Jun 12, 06:15 UTC | Jun 12, 10:55 UTC | 4h 40m |
| 2026-06-10 | EXS6H | AGP → EMA | Jun 10, 18:45 UTC | Jun 10, 23:55 UTC | 5h 10m |
| 2026-05-09 | - | - | May 9, 17:45 UTC | May 9, 23:09 UTC | 5h 25m |
| 2026-05-08 | EXS6H | AGP → EMA | May 8, 06:45 UTC | May 8, 12:14 UTC | 5h 30m |
| 2026-05-02 | - | - | May 2, 16:20 UTC | May 2, 16:30 UTC | 10m |
| 2026-04-30 | - | - | Apr 30, 16:05 UTC | Apr 30, 16:15 UTC | 10m |
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-CGEO page for operator, model, and routing details .