sensors Mode-S transponder

39C427

ICAO 24-bit transponder address · allocated to France

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

Hex
39C427
Octal
16342047
Decimal
3,785,767
Country
FR
Tail
F-HRBH
Type
B789
Broadcasting now · callsign AFR75K · 28,325 ft
Flights observed
97
Distinct callsigns
19
Country
FR
Last broadcast
4h ago

Current position

39C427 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39C427 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
AFR291 Air France 13 2026-05-18
AFR75K Air France 10 2026-05-29
AFR074 Air France 10 2026-05-29
AFR202 Air France 9 2026-05-19
AFR292 Air France 8 2026-05-17
AFR89U Air France 6 2026-05-27
AFR201 Air France 6 2026-05-19
AFR088 Air France 5 2026-05-26
AFR989 - 4 2026-04-26
AFR33J Air France 4 2026-05-29
AFR32J Air France 4 2026-05-28
AFR988 Air France 3 2026-04-25
AFR902 Air France 3 2026-04-27
AFR159X Air France 3 2026-05-20
AFR158M Air France 3 2026-05-20
AFR416 Air France 2 2026-05-05
AFR415 Air France 2 2026-05-05
AFR182 Air France 1 2026-05-14
AFR181 Air France 1 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFR75K RDU → CDG May 29, 22:30 UTCMay 30, 00:55 UTC2h 25m
2026-05-29 AFR074 CDG → RDU May 29, 11:30 UTCMay 29, 19:25 UTC7h 55m
2026-05-29 AFR33J ATL → CDG May 29, 00:45 UTCMay 29, 08:20 UTC7h 35m
2026-05-28 AFR32J CDG → ATL May 28, 12:30 UTCMay 28, 20:50 UTC8h 20m
2026-05-28 AFR33J ATL → CDG May 28, 00:15 UTCMay 28, 08:05 UTC7h 50m
2026-05-27 AFR32J CDG → ATL May 27, 13:00 UTCMay 27, 21:35 UTC8h 35m
2026-05-27 AFR89U MSP → CDG May 27, 01:59 UTCMay 27, 09:25 UTC7h 26m
2026-05-26 AFR088 CDG → SFO May 26, 14:20 UTCMay 26, 22:39 UTC8h 20m
2026-05-26 AFR89U MSP → CDG May 26, 01:49 UTCMay 26, 09:25 UTC7h 35m
2026-05-25 AFR088 CDG → SFO May 25, 14:15 UTCMay 25, 22:34 UTC8h 19m
2026-05-24 AFR89U MSP → CDG May 24, 14:15 UTCMay 25, 08:45 UTC18h 30m
2026-05-24 AFR89U MSP → CDG May 24, 02:05 UTCMay 24, 09:30 UTC7h 25m
2026-05-23 AFR088 CDG → SFO May 23, 14:20 UTCMay 23, 22:45 UTC8h 26m
2026-05-23 AFR89U MSP → CDG May 23, 02:00 UTCMay 23, 09:15 UTC7h 15m
2026-05-22 AFR088 CDG → SFO May 22, 15:35 UTCMay 22, 23:45 UTC8h 10m
2026-05-21 AFR75K RDU → CDG May 21, 22:40 UTCMay 22, 05:40 UTC7h 0m
2026-05-21 AFR074 CDG → RDU May 21, 11:40 UTCMay 21, 19:40 UTC8h 0m
2026-05-20 AFR159X DFW → CDG May 20, 21:45 UTCMay 21, 06:00 UTC8h 15m
2026-05-20 AFR158M CDG → DFW May 20, 08:35 UTCMay 20, 18:50 UTC10h 15m
2026-05-19 AFR201 PEK → CDG May 19, 16:05 UTCMay 20, 03:50 UTC11h 45m
2026-05-19 AFR202 CDG → BOM May 19, 07:05 UTCMay 19, 07:25 UTC20m
2026-05-18 AFR202 CDG → BOM May 18, 21:05 UTCMay 19, 01:20 UTC4h 15m
2026-05-18 AFR291 KIX → CDG May 18, 02:45 UTCMay 18, 16:45 UTC14h 0m
2026-05-17 AFR292 CDG → KIX May 17, 12:30 UTCMay 18, 00:45 UTC12h 15m
2026-05-16 AFR201 PEK → CDG May 16, 23:00 UTCMay 17, 03:40 UTC4h 40m
2026-05-16 AFR202 CDG → BOM May 16, 00:30 UTCMay 16, 23:45 UTC23h 15m
2026-05-15 AFR202 CDG → BOM May 15, 21:00 UTCMay 16, 01:30 UTC4h 30m
2026-05-15 AFR181 SIN → CDG May 15, 04:15 UTCMay 15, 17:10 UTC12h 54m
2026-05-14 AFR182 CDG → SIN May 14, 13:30 UTCMay 15, 01:35 UTC12h 5m
2026-05-14 AFR33J ATL → CDG May 14, 00:20 UTCMay 14, 08:05 UTC7h 45m
2026-05-13 AFR32J CDG → ATL May 13, 12:20 UTCMay 13, 21:05 UTC8h 45m
2026-05-12 AFR201 PEK → CDG May 12, 19:35 UTCMay 13, 03:25 UTC7h 50m
2026-05-11 AFR202 CDG → BOM May 11, 21:50 UTCMay 12, 19:35 UTC21h 45m
2026-05-11 AFR202 CDG → BOM May 11, 21:15 UTCMay 12, 19:35 UTC22h 20m
2026-05-11 AFR291 KIX → CDG May 11, 02:50 UTCMay 11, 17:05 UTC14h 15m
2026-05-10 AFR292 CDG → KIX May 10, 12:15 UTCMay 11, 00:40 UTC12h 25m
2026-05-09 AFR291 KIX → CDG May 9, 02:45 UTCMay 9, 16:35 UTC13h 50m
2026-05-08 AFR292 CDG → KIX May 8, 12:10 UTCMay 9, 00:15 UTC12h 5m
2026-05-08 AFR89U MSP → CDG May 8, 01:40 UTCMay 8, 09:09 UTC7h 30m
2026-05-07 AFR088 CDG → SFO May 7, 14:30 UTCMay 7, 22:45 UTC8h 15m
2026-05-06 AFR75K RDU → CDG May 6, 22:30 UTCMay 7, 05:50 UTC7h 20m
2026-05-06 AFR074 CDG → RDU May 6, 11:35 UTCMay 6, 19:45 UTC8h 9m
2026-05-05 AFR415 FOR → CDG May 5, 23:15 UTCMay 6, 07:01 UTC7h 45m
2026-05-05 AFR416 CDG → FOR May 5, 12:10 UTCMay 5, 20:45 UTC8h 35m
2026-05-05 AFR33J ATL → CDG May 5, 00:20 UTCMay 5, 08:10 UTC7h 50m
2026-05-04 AFR32J CDG → ATL May 4, 12:50 UTCMay 4, 21:20 UTC8h 31m
2026-05-03 AFR75K RDU → CDG May 3, 22:34 UTCMay 4, 05:40 UTC7h 5m
2026-05-03 AFR074 CDG → RDU May 3, 11:45 UTCMay 3, 19:50 UTC8h 5m
2026-05-02 AFR159X DFW → CDG May 2, 21:00 UTCMay 3, 05:45 UTC8h 44m
2026-05-02 AFR158M CDG → DFW May 2, 08:40 UTCMay 2, 18:05 UTC9h 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 F-HRBH page for operator, model, and routing details .

Mode-S 39C427 frequently asked

What is Mode-S code 39C427?
39C427 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HRBH.
Where is Mode-S 39C427 registered?
Mode-S code 39C427 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39C427 broadcasting right now?
Yes. Mode-S 39C427 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39C427, octal 16342047, decimal 3,785,767.
What flights does 39C427 operate?
Mode-S 39C427 has broadcast 19 distinct callsigns, including AFR291, AFR75K, AFR074, AFR202, AFR292.