sensors Mode-S transponder

39C420

ICAO 24-bit transponder address · allocated to France

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

Hex
39C420
Octal
16342040
Decimal
3,785,760
Country
FR
Tail
F-HRBA
Type
B789
No current signal · last broadcast 4h ago
Flights observed
89
Distinct callsigns
20
Country
FR
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 39C420.

Country allocation

The ICAO 24-bit address 39C420 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
AFR201 Air France 10 2026-05-17
AFR202 Air France 9 2026-05-29
AFR342T Air France 8 2026-05-26
AFR291 Air France 8 2026-05-21
AFR343 Air France 7 2026-05-26
AFR292 Air France 7 2026-05-20
AFR159X Air France 6 2026-05-22
AFR158M Air France 6 2026-05-22
AFR4190 - 4 2026-04-13
AFR356G - 3 2026-04-13
AFR940 Air France 2 2026-04-19
AFR89U Air France 2 2026-05-28
AFR75K Air France 2 2026-05-18
AFR357E Air France 2 2026-04-14
AFR182 Air France 2 2026-05-23
AFR181 Air France 2 2026-05-24
AFR088 Air France 2 2026-05-27
AFR074 Air France 2 2026-05-18
AFR926 Air France 1 2026-04-18
AFR923 Air France 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFR202 CDG → BOM May 29, 21:05 UTCMay 30, 01:05 UTC4h 0m
2026-05-28 AFR89U MSP → CDG May 28, 01:40 UTCMay 28, 09:30 UTC7h 50m
2026-05-27 AFR088 CDG → SFO May 27, 15:15 UTCMay 27, 23:10 UTC7h 55m
2026-05-26 AFR343 YUL → CDG May 26, 21:34 UTCMay 27, 03:50 UTC6h 15m
2026-05-26 AFR342T CDG → YUL May 26, 15:14 UTCMay 26, 16:00 UTC45m
2026-05-26 AFR342T CDG → YUL May 26, 09:15 UTCMay 26, 15:09 UTC5h 55m
2026-05-25 AFR343 YUL → CDG May 25, 21:35 UTCMay 26, 03:35 UTC6h 0m
2026-05-25 AFR342T CDG → YUL May 25, 09:00 UTCMay 25, 16:05 UTC7h 5m
2026-05-24 AFR181 SIN → CDG May 24, 03:10 UTCMay 24, 16:10 UTC13h 0m
2026-05-23 AFR182 CDG → SIN May 23, 12:15 UTCMay 24, 00:25 UTC12h 10m
2026-05-22 AFR159X DFW → CDG May 22, 21:15 UTCMay 23, 05:40 UTC8h 24m
2026-05-22 AFR158M CDG → DFW May 22, 08:50 UTCMay 22, 18:25 UTC9h 35m
2026-05-21 AFR291 KIX → CDG May 21, 03:00 UTCMay 21, 17:00 UTC14h 0m
2026-05-20 AFR292 CDG → KIX May 20, 12:05 UTCMay 21, 00:15 UTC12h 10m
2026-05-19 AFR343 YUL → CDG May 19, 21:15 UTCMay 20, 03:25 UTC6h 10m
2026-05-19 AFR342T CDG → YUL May 19, 08:55 UTCMay 19, 16:00 UTC7h 5m
2026-05-18 AFR75K RDU → CDG May 18, 22:25 UTCMay 19, 05:40 UTC7h 15m
2026-05-18 AFR074 CDG → RDU May 18, 11:35 UTCMay 18, 19:25 UTC7h 49m
2026-05-17 AFR201 PEK → CDG May 17, 19:35 UTCMay 18, 03:20 UTC7h 45m
2026-05-16 AFR202 CDG → BOM May 16, 21:00 UTCMay 17, 01:40 UTC4h 40m
2026-05-16 AFR291 KIX → CDG May 16, 03:30 UTCMay 16, 17:20 UTC13h 51m
2026-05-15 AFR292 CDG → KIX May 15, 12:35 UTCMay 16, 01:15 UTC12h 39m
2026-05-14 AFR159X DFW → CDG May 14, 21:40 UTCMay 15, 06:20 UTC8h 40m
2026-05-14 AFR158M CDG → DFW May 14, 09:50 UTCMay 14, 19:10 UTC9h 20m
2026-05-13 AFR578 CDG → CKY May 13, 16:30 UTCMay 14, 06:45 UTC14h 15m
2026-05-13 AFR89U MSP → CDG May 13, 01:25 UTCMay 13, 08:55 UTC7h 30m
2026-05-12 AFR088 CDG → SFO May 12, 14:15 UTCMay 12, 22:45 UTC8h 30m
2026-05-11 AFR159X DFW → CDG May 11, 21:30 UTCMay 12, 06:10 UTC8h 40m
2026-05-11 AFR158M CDG → DFW May 11, 08:45 UTCMay 11, 18:20 UTC9h 36m
2026-05-10 AFR201 PEK → CDG May 10, 22:45 UTCMay 11, 03:35 UTC4h 50m
2026-05-10 AFR201 PEK → CDG May 10, 01:00 UTCMay 11, 00:00 UTC23h 0m
2026-05-09 AFR202 CDG → BOM May 9, 21:09 UTCMay 10, 01:09 UTC4h 0m
2026-05-08 AFR75K RDU → CDG May 8, 22:25 UTCMay 9, 05:40 UTC7h 15m
2026-05-08 AFR074 CDG → RDU May 8, 11:40 UTCMay 8, 19:50 UTC8h 10m
2026-05-06 AFR343 YUL → CDG May 6, 21:20 UTCMay 7, 03:35 UTC6h 15m
2026-05-06 AFR342T CDG → YUL May 6, 09:45 UTCMay 6, 16:40 UTC6h 55m
2026-05-05 AFR159X DFW → CDG May 5, 21:20 UTCMay 6, 05:50 UTC8h 30m
2026-05-05 AFR158M CDG → DFW May 5, 09:05 UTCMay 5, 18:35 UTC9h 30m
2026-05-04 AFR201 PEK → CDG May 4, 15:30 UTCMay 5, 03:15 UTC11h 46m
2026-05-04 AFR202 CDG → BOM May 4, 08:20 UTCMay 4, 08:40 UTC20m
2026-05-03 AFR202 CDG → BOM May 3, 22:15 UTCMay 4, 02:35 UTC4h 20m
2026-05-02 AFR343 YUL → CDG May 2, 22:45 UTCMay 3, 05:10 UTC6h 24m
2026-05-02 AFR342T CDG → YUL May 2, 10:30 UTCMay 2, 17:05 UTC6h 35m
2026-05-01 AFR343 YUL → CDG May 1, 21:20 UTCMay 2, 03:40 UTC6h 21m
2026-05-01 AFR342T CDG → YUL May 1, 09:15 UTCMay 1, 15:55 UTC6h 40m
2026-04-30 AFR159X DFW → CDG Apr 30, 21:35 UTCMay 1, 06:25 UTC8h 50m
2026-04-30 AFR158M CDG → DFW Apr 30, 08:55 UTCApr 30, 18:30 UTC9h 35m
2026-04-29 AFR343 YUL → CDG Apr 29, 22:05 UTCApr 30, 04:20 UTC6h 14m
2026-04-29 AFR342T CDG → YUL Apr 29, 12:30 UTCApr 29, 19:05 UTC6h 35m
2026-04-29 AFR159X DFW → CDG Apr 29, 00:30 UTCApr 29, 09:15 UTC8h 46m

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

Mode-S 39C420 frequently asked

What is Mode-S code 39C420?
39C420 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HRBA.
Where is Mode-S 39C420 registered?
Mode-S code 39C420 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39C420 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39C420, octal 16342040, decimal 3,785,760.
What flights does 39C420 operate?
Mode-S 39C420 has broadcast 20 distinct callsigns, including AFR201, AFR202, AFR342T, AFR291, AFR343.