Apparatus

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sensors Mode-S transponder

39C425

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HRBF · BOEING 787-9 Dreamliner

Hex
39C425
Octal
16342045
Decimal
3,785,765
Country
FR
Tail
F-HRBF
Type
B789
Broadcasting now · callsign AFR343 · 37,000 ft
Flights observed
178
Distinct callsigns
20
Country
FR
Last broadcast
5h ago

Current position

39C425 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39C425 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 20 distinct

Callsign Airline Flights Last seen
AFR202 - 20 2026-06-30
AFR201 - 14 2026-06-30
AFR342T - 12 2026-07-14
AFR343 - 11 2026-07-12
AFR291 - 9 2026-06-29
AFR292 - 8 2026-06-28
AFR158M Air France 8 2026-05-31
AFR940 Air France 7 2026-04-18
AFR159X Air France 7 2026-05-31
AFR923 - 6 2026-07-11
AFR75K - 6 2026-06-19
AFR570 - 6 2026-07-08
AFR551 - 6 2026-07-09
AFR471 - 6 2026-07-08
AFR468 - 6 2026-07-07
AFR182 - 6 2026-06-25
AFR181 - 6 2026-06-26
AFR074 - 6 2026-06-19
AFR415 Air France 4 2026-04-15
AFR926 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFR342T - Jul 14, 10:10 UTCJul 14, 16:50 UTC6h 40m
2026-07-13 AFR736 - Jul 13, 11:20 UTCJul 14, 06:45 UTC19h 25m
2026-07-13 AFR736 - Jul 13, 09:25 UTCJul 14, 06:45 UTC21h 20m
2026-07-12 AFR343 - Jul 12, 21:30 UTCJul 13, 03:45 UTC6h 15m
2026-07-12 AFR342T - Jul 12, 09:05 UTCJul 12, 15:55 UTC6h 50m
2026-07-11 AFR343 YUL → CDG Jul 11, 21:40 UTCJul 12, 03:50 UTC6h 10m
2026-07-11 AFR342T - Jul 11, 09:10 UTCJul 11, 16:05 UTC6h 55m
2026-07-11 AFR923 - Jul 11, 01:00 UTCJul 11, 03:25 UTC2h 25m
2026-07-10 AFR926 - Jul 10, 09:35 UTCJul 10, 16:05 UTC6h 30m
2026-07-09 AFR923 - Jul 9, 09:20 UTCJul 10, 03:25 UTC18h 5m
2026-07-09 AFR551 - Jul 9, 01:10 UTCJul 9, 05:10 UTC4h 0m
2026-07-08 AFR570 - Jul 8, 18:35 UTCJul 8, 22:00 UTC3h 25m
2026-07-08 AFR471 - Jul 8, 03:25 UTCJul 8, 15:40 UTC12h 15m
2026-07-07 AFR468 CDG → EZE Jul 7, 12:20 UTCJul 8, 01:15 UTC12h 55m
2026-07-07 AFR551 - Jul 7, 02:20 UTCJul 7, 06:15 UTC3h 55m
2026-07-06 AFR570 - Jul 6, 20:20 UTCJul 6, 23:05 UTC2h 45m
2026-07-06 AFR191 - Jul 6, 01:40 UTCJul 6, 08:20 UTC6h 40m
2026-07-05 AFR191 - Jul 5, 22:35 UTCJul 6, 01:30 UTC2h 55m
2026-07-05 AFR194 - Jul 5, 20:15 UTCJul 5, 20:25 UTC10m
2026-07-05 AFR194 - Jul 5, 11:40 UTCJul 5, 18:45 UTC7h 5m
2026-07-05 AFR551 - Jul 5, 00:45 UTCJul 5, 04:45 UTC4h 0m
2026-07-04 AFR570 - Jul 4, 18:25 UTCJul 4, 21:50 UTC3h 25m
2026-07-04 AFR471 - Jul 4, 03:15 UTCJul 4, 15:25 UTC12h 10m
2026-07-03 AFR468 - Jul 3, 12:05 UTCJul 4, 01:10 UTC13h 5m
2026-07-03 AFR551 - Jul 3, 00:40 UTCJul 3, 04:30 UTC3h 50m
2026-07-02 AFR570 - Jul 2, 18:30 UTCJul 2, 22:05 UTC3h 35m
2026-07-02 AFR471 - Jul 2, 03:00 UTCJul 2, 15:35 UTC12h 35m
2026-07-01 AFR468 - Jul 1, 11:55 UTCJul 2, 00:40 UTC12h 45m
2026-06-30 AFR201 - Jun 30, 15:30 UTCJul 1, 03:30 UTC12h 0m
2026-06-30 AFR202 - Jun 30, 07:05 UTCJun 30, 07:30 UTC25m
2026-06-29 AFR202 - Jun 29, 21:19 UTCJun 30, 01:35 UTC4h 16m
2026-06-29 AFR291 - Jun 29, 02:59 UTCJun 29, 17:05 UTC14h 5m
2026-06-28 AFR292 - Jun 28, 12:35 UTCJun 29, 00:34 UTC12h 0m
2026-06-27 AFR923 - Jun 27, 09:24 UTCJun 28, 03:29 UTC18h 5m
2026-06-27 AFR551 - Jun 27, 02:14 UTCJun 27, 06:05 UTC3h 50m
2026-06-26 AFR570 - Jun 26, 20:15 UTCJun 27, 00:05 UTC3h 50m
2026-06-26 AFR181 - Jun 26, 04:14 UTCJun 26, 16:54 UTC12h 40m
2026-06-25 AFR182 - Jun 25, 14:09 UTCJun 26, 02:09 UTC12h 0m
2026-06-24 AFR471 CCS → CDG Jun 24, 03:00 UTCJun 24, 15:39 UTC12h 40m
2026-06-23 AFR468 - Jun 23, 11:59 UTCJun 24, 00:55 UTC12h 55m
2026-06-23 AFR551 - Jun 23, 00:35 UTCJun 23, 04:35 UTC4h 0m
2026-06-22 AFR570 - Jun 22, 18:49 UTCJun 22, 22:10 UTC3h 20m
2026-06-22 AFR471 CCS → CDG Jun 22, 03:05 UTCJun 22, 15:45 UTC12h 40m
2026-06-21 AFR468 - Jun 21, 11:59 UTCJun 22, 00:50 UTC12h 50m
2026-06-20 AFR923 - Jun 20, 09:19 UTCJun 21, 03:34 UTC18h 15m
2026-06-20 AFR923 - Jun 20, 09:14 UTCJun 21, 03:34 UTC18h 20m
2026-06-19 AFR75K - Jun 19, 22:30 UTCJun 20, 05:29 UTC7h 0m
2026-06-19 AFR074 - Jun 19, 11:34 UTCJun 19, 19:39 UTC8h 5m
2026-06-18 AFR471 CCS → CDG Jun 18, 03:55 UTCJun 18, 15:45 UTC11h 50m
2026-06-17 AFR468 - Jun 17, 12:50 UTCJun 18, 01:55 UTC13h 5m

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-HRBF page for operator, model, and routing details .

Mode-S 39C425 frequently asked

What is Mode-S code 39C425?
39C425 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HRBF.
Where is Mode-S 39C425 registered?
Mode-S code 39C425 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39C425 broadcasting right now?
Yes. Mode-S 39C425 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39C425, octal 16342045, decimal 3,785,765.
What flights does 39C425 operate?
Mode-S 39C425 has broadcast 20 distinct callsigns, including AFR202, AFR201, AFR342T, AFR343, AFR291.