sensors Mode-S transponder
39B225
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-HMRF · BOEING 777-200LR
- Hex
- 39B225
- Octal
- 16331045
- Decimal
- 3,781,157
- Country
- FR
- Tail
- F-HMRF
- Type
- B77L
- Flights observed
- 119
- Distinct callsigns
- 19
- Country
- FR
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 39B225 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 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CMA627 | Central European Airlines | 29 | 2026-05-27 |
| CMA841 | - | 23 | 2026-05-28 |
| CMA626 | Central European Airlines | 15 | 2026-05-26 |
| CMA731 | - | 9 | 2026-05-20 |
| CMA840 | - | 8 | 2026-05-29 |
| CMA575 | Central European Airlines | 6 | 2026-05-23 |
| CMA574 | Central European Airlines | 4 | 2026-05-23 |
| CMA730 | - | 3 | 2026-05-19 |
| CMA576 | - | 3 | 2026-05-02 |
| ABB856 | Business Aviation | 3 | 2026-04-25 |
| CMA577 | Central European Airlines | 2 | 2026-05-03 |
| CMA573 | Central European Airlines | 2 | 2026-05-06 |
| ABB859 | - | 2 | 2026-04-19 |
| ABB853 | - | 2 | 2026-04-22 |
| ABB852 | Business Aviation | 2 | 2026-04-22 |
| ABB851 | - | 2 | 2026-04-21 |
| ABB850 | - | 2 | 2026-04-20 |
| CMA572 | Central European Airlines | 1 | 2026-05-05 |
| CMA021 | Central European Airlines | 1 | 2026-04-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CMA840 | - | May 29, 15:40 UTC | May 29, 22:35 UTC | 6h 55m |
| 2026-05-28 | CMA841 | - | May 28, 00:15 UTC | May 28, 18:20 UTC | 18h 5m |
| 2026-05-27 | CMA841 | - | May 27, 19:20 UTC | May 28, 18:20 UTC | 23h 0m |
| 2026-05-27 | CMA841 | - | May 27, 17:25 UTC | May 28, 17:15 UTC | 23h 50m |
| 2026-05-27 | CMA627 | CAN → CDG | May 27, 00:04 UTC | May 27, 14:15 UTC | 14h 10m |
| 2026-05-26 | CMA627 | CAN → CDG | May 26, 17:20 UTC | May 27, 14:15 UTC | 20h 55m |
| 2026-05-26 | CMA627 | CAN → CDG | May 26, 16:59 UTC | May 27, 14:15 UTC | 21h 15m |
| 2026-05-26 | CMA627 | CAN → CDG | May 26, 14:00 UTC | May 27, 13:15 UTC | 23h 15m |
| 2026-05-26 | CMA626 | CDG → CDG | May 26, 06:44 UTC | May 27, 00:19 UTC | 17h 35m |
| 2026-05-25 | CMA627 | CAN → CDG | May 25, 09:30 UTC | May 25, 14:05 UTC | 4h 35m |
| 2026-05-24 | CMA627 | CAN → CDG | May 24, 11:20 UTC | May 25, 10:45 UTC | 23h 25m |
| 2026-05-24 | CMA626 | CDG → CDG | May 24, 07:15 UTC | May 24, 11:35 UTC | 4h 20m |
| 2026-05-23 | CMA575 | HKG → HKG | May 23, 22:55 UTC | May 24, 03:25 UTC | 4h 30m |
| 2026-05-23 | CMA575 | HKG → HKG | May 23, 12:20 UTC | May 23, 12:30 UTC | 10m |
| 2026-05-23 | CMA574 | CDG → HKG | May 23, 07:40 UTC | May 23, 08:25 UTC | 45m |
| 2026-05-22 | CMA574 | CDG → HKG | May 22, 20:20 UTC | May 23, 00:40 UTC | 4h 20m |
| 2026-05-22 | CMA627 | CAN → CDG | May 22, 00:10 UTC | May 22, 13:40 UTC | 13h 30m |
| 2026-05-21 | CMA627 | CAN → CDG | May 21, 16:50 UTC | May 22, 13:40 UTC | 20h 50m |
| 2026-05-21 | CMA627 | CAN → CDG | May 21, 13:55 UTC | May 22, 13:15 UTC | 23h 20m |
| 2026-05-21 | CMA626 | CDG → CDG | May 21, 09:20 UTC | May 22, 09:15 UTC | 23h 55m |
| 2026-05-21 | CMA626 | CDG → CDG | May 21, 06:45 UTC | May 22, 00:25 UTC | 17h 40m |
| 2026-05-20 | CMA731 | - | May 20, 10:50 UTC | May 21, 03:50 UTC | 17h 0m |
| 2026-05-20 | CMA731 | - | May 20, 05:20 UTC | May 21, 03:50 UTC | 22h 30m |
| 2026-05-20 | CMA731 | - | May 20, 03:20 UTC | May 21, 03:15 UTC | 23h 56m |
| 2026-05-20 | CMA731 | - | May 20, 03:00 UTC | May 21, 01:15 UTC | 22h 16m |
| 2026-05-19 | CMA730 | - | May 19, 23:55 UTC | May 20, 23:15 UTC | 23h 21m |
| 2026-05-19 | CMA730 | - | May 19, 20:10 UTC | May 20, 14:15 UTC | 18h 6m |
| 2026-05-18 | CMA841 | - | May 18, 22:50 UTC | May 19, 16:05 UTC | 17h 15m |
| 2026-05-18 | CMA841 | - | May 18, 19:50 UTC | May 19, 16:05 UTC | 20h 15m |
| 2026-05-18 | CMA841 | - | May 18, 17:20 UTC | May 19, 16:05 UTC | 22h 44m |
| 2026-05-18 | CMA840 | - | May 18, 15:45 UTC | May 19, 15:15 UTC | 23h 29m |
| 2026-05-17 | CMA731 | - | May 17, 11:10 UTC | May 18, 03:10 UTC | 16h 0m |
| 2026-05-17 | CMA731 | - | May 17, 06:05 UTC | May 18, 03:10 UTC | 21h 5m |
| 2026-05-17 | CMA731 | - | May 17, 03:20 UTC | May 18, 03:10 UTC | 23h 50m |
| 2026-05-17 | CMA731 | - | May 17, 02:55 UTC | May 18, 01:15 UTC | 22h 20m |
| 2026-05-16 | CMA731 | - | May 16, 23:45 UTC | May 17, 23:15 UTC | 23h 30m |
| 2026-05-16 | CMA730 | - | May 16, 20:10 UTC | May 17, 14:45 UTC | 18h 35m |
| 2026-05-16 | CMA841 | - | May 16, 11:31 UTC | May 16, 16:10 UTC | 4h 40m |
| 2026-05-15 | CMA841 | - | May 15, 19:30 UTC | May 16, 16:10 UTC | 20h 41m |
| 2026-05-15 | CMA841 | - | May 15, 17:20 UTC | May 16, 16:10 UTC | 22h 51m |
| 2026-05-15 | CMA840 | - | May 15, 15:35 UTC | May 16, 15:16 UTC | 23h 41m |
| 2026-05-14 | CMA841 | - | May 14, 01:25 UTC | May 14, 21:10 UTC | 19h 45m |
| 2026-05-13 | CMA841 | - | May 13, 23:20 UTC | May 14, 21:10 UTC | 21h 50m |
| 2026-05-13 | CMA841 | - | May 13, 21:20 UTC | May 14, 21:10 UTC | 23h 50m |
| 2026-05-13 | CMA627 | CAN → CDG | May 13, 09:35 UTC | May 13, 10:40 UTC | 1h 5m |
| 2026-05-12 | CMA627 | CAN → CDG | May 12, 13:55 UTC | May 13, 10:40 UTC | 20h 45m |
| 2026-05-12 | CMA626 | CDG → CDG | May 12, 06:55 UTC | May 12, 14:00 UTC | 7h 5m |
| 2026-05-11 | CMA627 | CAN → CDG | May 11, 09:10 UTC | May 11, 13:50 UTC | 4h 40m |
| 2026-05-10 | CMA626 | CDG → CDG | May 10, 09:20 UTC | May 11, 09:15 UTC | 23h 55m |
| 2026-05-10 | CMA626 | CDG → CDG | May 10, 06:59 UTC | May 10, 11:10 UTC | 4h 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 F-HMRF page for operator, model, and routing details .