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sensors Mode-S transponder

39C428

ICAO 24-bit transponder address · allocated to France

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

Hex
39C428
Octal
16342050
Decimal
3,785,768
Country
FR
Tail
F-HRBI
Type
B789
Broadcasting now · callsign AFR181 · 8,175 ft
Flights observed
201
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 15:55 UTC

Current position

39C428 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39C428 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 Air France 26 2026-07-24
AFR201 Air France 20 2026-07-24
AFR181 Air France 14 2026-07-26
AFR342T - 13 2026-07-10
AFR182 Air France 11 2026-07-25
AFR343 - 10 2026-07-10
AFR194 - 8 2026-07-21
AFR471 - 7 2026-07-18
AFR468 - 7 2026-07-17
AFR292 Air France 7 2026-07-22
AFR291 Air France 7 2026-07-23
AFR940 Air France 6 2026-04-25
AFR570 - 6 2026-07-05
AFR551 - 6 2026-07-06
AFR89U Air France 4 2026-05-29
AFR191 Air France 4 2026-07-21
AFR088 Air France 4 2026-05-28
AFR074 Air France 4 2026-05-24
AFR923 - 3 2026-06-19
AFR75K Air France 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR181 SIN → CDG Jul 26, 03:20 UTCJul 26, 15:55 UTC12h 36m
2026-07-25 AFR182 CDG → SIN Jul 25, 12:25 UTCJul 26, 00:25 UTC12h 0m
2026-07-24 AFR201 PEK → CDG Jul 24, 15:20 UTCJul 25, 03:15 UTC11h 55m
2026-07-24 AFR202 CDG → BOM Jul 24, 06:40 UTCJul 24, 07:00 UTC20m
2026-07-23 AFR202 CDG → BOM Jul 23, 21:05 UTCJul 24, 01:00 UTC3h 55m
2026-07-23 AFR291 KIX → CDG Jul 23, 03:35 UTCJul 23, 17:20 UTC13h 45m
2026-07-22 AFR292 CDG → KIX Jul 22, 12:30 UTCJul 23, 00:25 UTC11h 55m
2026-07-21 AFR191 BLR → CDG Jul 21, 21:55 UTCJul 22, 05:25 UTC7h 30m
2026-07-21 AFR194 - Jul 21, 17:35 UTCJul 21, 17:55 UTC20m
2026-07-21 AFR194 - Jul 21, 09:05 UTCJul 21, 16:05 UTC7h 0m
2026-07-20 AFR191 BLR → CDG Jul 20, 21:00 UTCJul 21, 06:05 UTC9h 5m
2026-07-20 AFR194 - Jul 20, 17:35 UTCJul 20, 17:45 UTC10m
2026-07-20 AFR194 - Jul 20, 08:55 UTCJul 20, 16:00 UTC7h 5m
2026-07-19 AFR201 - Jul 19, 23:10 UTCJul 20, 04:05 UTC4h 55m
2026-07-19 AFR201 - Jul 19, 16:05 UTCJul 19, 16:15 UTC10m
2026-07-19 AFR202 CDG → BOM Jul 19, 06:40 UTCJul 19, 06:55 UTC15m
2026-07-18 AFR202 CDG → BOM Jul 18, 21:20 UTCJul 19, 01:20 UTC4h 0m
2026-07-18 AFR471 - Jul 18, 03:35 UTCJul 18, 15:35 UTC12h 0m
2026-07-17 AFR468 - Jul 17, 12:15 UTCJul 18, 01:20 UTC13h 5m
2026-07-16 AFR291 - Jul 16, 02:45 UTCJul 16, 17:00 UTC14h 15m
2026-07-15 AFR292 - Jul 15, 12:30 UTCJul 16, 00:10 UTC11h 40m
2026-07-14 AFR471 - Jul 14, 03:05 UTCJul 14, 15:20 UTC12h 15m
2026-07-13 AFR468 - Jul 13, 12:00 UTCJul 14, 00:55 UTC12h 55m
2026-07-12 AFR191 - Jul 12, 20:20 UTCJul 13, 06:01 UTC9h 40m
2026-07-12 AFR194 - Jul 12, 17:35 UTCJul 12, 17:45 UTC10m
2026-07-12 AFR194 - Jul 12, 09:00 UTCJul 12, 12:55 UTC3h 55m
2026-07-11 AFR191 - Jul 11, 20:10 UTCJul 12, 05:35 UTC9h 25m
2026-07-11 AFR194 - Jul 11, 17:30 UTCJul 11, 17:45 UTC15m
2026-07-11 AFR194 - Jul 11, 09:10 UTCJul 11, 13:00 UTC3h 50m
2026-07-10 AFR343 YUL → CDG Jul 10, 21:30 UTCJul 11, 03:40 UTC6h 10m
2026-07-10 AFR342T CDG → YUL Jul 10, 09:05 UTCJul 10, 16:10 UTC7h 5m
2026-07-08 AFR201 - Jul 8, 19:55 UTCJul 9, 03:45 UTC7h 50m
2026-07-08 AFR201 - Jul 8, 15:55 UTCJul 8, 16:05 UTC10m
2026-07-08 AFR202 - Jul 8, 06:35 UTCJul 8, 06:55 UTC20m
2026-07-07 AFR202 - Jul 7, 21:00 UTCJul 8, 01:00 UTC4h 0m
2026-07-07 AFR181 - Jul 7, 03:15 UTCJul 7, 16:00 UTC12h 45m
2026-07-06 AFR182 - Jul 6, 12:05 UTCJul 7, 00:05 UTC12h 0m
2026-07-06 AFR551 - Jul 6, 00:35 UTCJul 6, 04:40 UTC4h 5m
2026-07-05 AFR570 - Jul 5, 18:30 UTCJul 5, 22:00 UTC3h 30m
2026-07-05 AFR471 - Jul 5, 03:30 UTCJul 5, 15:30 UTC12h 0m
2026-07-04 AFR468 - Jul 4, 12:05 UTCJul 5, 01:15 UTC13h 10m
2026-07-04 AFR4081 - Jul 4, 03:10 UTCJul 4, 09:05 UTC5h 55m
2026-07-03 AFR342T - Jul 3, 17:15 UTCJul 4, 00:20 UTC7h 5m
2026-07-01 AFR551 - Jul 1, 01:00 UTCJul 1, 04:55 UTC3h 55m
2026-06-30 AFR570 - Jun 30, 18:45 UTCJun 30, 22:30 UTC3h 45m
2026-06-30 AFR471 CCS → CDG Jun 30, 03:15 UTCJun 30, 15:45 UTC12h 30m
2026-06-29 AFR468 - Jun 29, 12:05 UTCJun 30, 00:55 UTC12h 50m
2026-06-28 AFR343 YUL → CDG Jun 28, 21:20 UTCJun 29, 03:29 UTC6h 10m
2026-06-28 AFR342T - Jun 28, 09:20 UTCJun 28, 16:05 UTC6h 45m
2026-06-26 AFR551 - Jun 26, 03:29 UTCJun 26, 07:14 UTC3h 45m

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

Mode-S 39C428 frequently asked

What is Mode-S code 39C428?
39C428 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HRBI.
Where is Mode-S 39C428 registered?
Mode-S code 39C428 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39C428 broadcasting right now?
Yes. Mode-S 39C428 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39C428, octal 16342050, decimal 3,785,768.
What flights does 39C428 operate?
Mode-S 39C428 has broadcast 20 distinct callsigns, including AFR202, AFR201, AFR181, AFR342T, AFR182.