sensors Mode-S transponder

39DE4A

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HSXK · AIRBUS A-320neo

Hex
39DE4A
Octal
16357112
Decimal
3,792,458
Country
FR
Tail
F-HSXK
Type
A20N
Broadcasting now · callsign TVF68FN · 33,150 ft
Flights observed
230
Distinct callsigns
20
Country
FR
Last broadcast
8h ago

Current position

39DE4A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39DE4A 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
TVF77CG - 5 2026-05-27
TVF49MD - 5 2026-05-29
TVF31HC - 5 2026-05-27
TVF73RQ - 4 2026-05-11
TVF4370 Transavia France 4 2026-05-25
TVF41JM Transavia France 4 2026-05-12
TVF26SK - 4 2026-05-18
TVF99QP - 3 2026-05-29
TVF97AM - 3 2026-04-29
TVF88JV - 3 2026-05-27
TVF68JY - 3 2026-05-22
TVF58DM Transavia France 3 2026-05-26
TVF53ZY - 3 2026-04-18
TVF45BX - 3 2026-04-30
TVF4331 - 3 2026-04-13
TVF42VD - 3 2026-05-18
TVF41HV Transavia France 3 2026-05-27
TVF25CQ Transavia France 3 2026-05-29
TVF21KT - 3 2026-05-22
TVF15GP Transavia France 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TVF235L CAI → ORY May 29, 15:30 UTCMay 29, 19:35 UTC4h 5m
2026-05-29 TVF49MD - May 29, 09:50 UTCMay 29, 13:30 UTC3h 40m
2026-05-29 TVF99QP BCN → ORY May 29, 06:45 UTCMay 29, 08:20 UTC1h 35m
2026-05-29 TVF25CQ ORY → BCN May 29, 04:10 UTCMay 29, 05:25 UTC1h 15m
2026-05-28 TVF80TB FNC → ORY May 28, 17:05 UTCMay 28, 20:15 UTC3h 10m
2026-05-28 TVF38CS - May 28, 15:35 UTCMay 28, 15:45 UTC10m
2026-05-28 TVF38CS - May 28, 12:35 UTCMay 28, 15:00 UTC2h 25m
2026-05-28 TVF99QP BCN → ORY May 28, 09:40 UTCMay 28, 11:00 UTC1h 20m
2026-05-28 TVF25CQ ORY → BCN May 28, 07:00 UTCMay 28, 08:15 UTC1h 15m
2026-05-28 TVF83MR BCN → ORY May 28, 04:20 UTCMay 28, 05:40 UTC1h 20m
2026-05-27 TVF32DR ORY → BCN May 27, 19:50 UTCMay 27, 21:10 UTC1h 20m
2026-05-27 TVF31HC ARN → ORY May 27, 16:00 UTCMay 27, 18:20 UTC2h 20m
2026-05-27 TVF77CG ORY → ARN May 27, 12:00 UTCMay 27, 14:15 UTC2h 15m
2026-05-27 TVF41HV ORY → SID May 27, 08:00 UTCMay 27, 09:35 UTC1h 35m
2026-05-27 TVF88JV ORY → BER May 27, 05:40 UTCMay 27, 07:00 UTC1h 21m
2026-05-26 TVF43BM OPO → ORY May 26, 18:10 UTCMay 26, 19:50 UTC1h 40m
2026-05-26 TVF95NL ORY → OPO May 26, 15:20 UTCMay 26, 17:09 UTC1h 50m
2026-05-26 TVF48RW - May 26, 11:20 UTCMay 26, 13:40 UTC2h 20m
2026-05-26 TVF57JG ORY → MLA May 26, 07:45 UTCMay 26, 10:10 UTC2h 25m
2026-05-26 TVF58DM PRG → ORY May 26, 04:50 UTCMay 26, 06:25 UTC1h 35m
2026-05-25 TVF4370 ORY → PRG May 25, 18:10 UTCMay 25, 19:30 UTC1h 19m
2026-05-25 TVF934S OUD → ORY May 25, 14:00 UTCMay 25, 16:20 UTC2h 20m
2026-05-25 TVF15GP ORY → OUD May 25, 10:35 UTCMay 25, 12:50 UTC2h 15m
2026-05-25 TVF99QP BCN → ORY May 25, 07:45 UTCMay 25, 09:00 UTC1h 15m
2026-05-25 TVF25CQ ORY → BCN May 25, 05:05 UTCMay 25, 06:25 UTC1h 20m
2026-05-24 TVF54ZV - May 24, 18:45 UTCMay 24, 20:20 UTC1h 35m
2026-05-24 TVF25FK - May 24, 15:50 UTCMay 24, 17:20 UTC1h 30m
2026-05-24 TVF97PR BER → ORY May 24, 13:05 UTCMay 24, 14:25 UTC1h 20m
2026-05-24 TVF34PH - May 24, 10:35 UTCMay 24, 12:05 UTC1h 30m
2026-05-24 TVF11JJ DSS → NTE May 24, 07:45 UTCMay 24, 09:30 UTC1h 45m
2026-05-24 TVF69JH - May 24, 04:25 UTCMay 24, 06:20 UTC1h 55m
2026-05-23 TVF16PW - May 23, 18:15 UTCMay 23, 20:30 UTC2h 15m
2026-05-23 TVF26PJ - May 23, 14:40 UTCMay 23, 16:45 UTC2h 5m
2026-05-23 TVF98NQ - May 23, 11:35 UTCMay 23, 13:15 UTC1h 40m
2026-05-23 TVF82QK - May 23, 08:20 UTCMay 23, 10:00 UTC1h 40m
2026-05-23 TVF25AT BER → ORY May 23, 05:15 UTCMay 23, 06:50 UTC1h 35m
2026-05-22 TVF73KL ORY → BER May 22, 18:50 UTCMay 22, 20:05 UTC1h 15m
2026-05-22 TVF31HC ARN → ORY May 22, 14:40 UTCMay 22, 17:00 UTC2h 20m
2026-05-22 TVF77CG ORY → ARN May 22, 11:20 UTCMay 22, 13:35 UTC2h 16m
2026-05-22 TVF21KT SVQ → ORY May 22, 07:45 UTCMay 22, 09:35 UTC1h 50m
2026-05-22 TVF68JY ORY → SVQ May 22, 04:25 UTCMay 22, 06:35 UTC2h 10m
2026-05-21 TVF235L CAI → ORY May 21, 15:15 UTCMay 21, 19:20 UTC4h 5m
2026-05-21 TVF49MD - May 21, 09:35 UTCMay 21, 13:20 UTC3h 45m
2026-05-21 TVF54ZE - May 21, 05:00 UTCMay 21, 06:35 UTC1h 35m
2026-05-20 TVF85UD - May 20, 19:05 UTCMay 20, 20:20 UTC1h 15m
2026-05-20 TVF39PQ ATH → ORY May 20, 14:40 UTCMay 20, 17:50 UTC3h 10m
2026-05-20 TVF21CH ORY → ATH May 20, 10:45 UTCMay 20, 13:25 UTC2h 40m
2026-05-20 TVF84BK IBZ → ORY May 20, 07:10 UTCMay 20, 09:05 UTC1h 55m
2026-05-20 TVF87KA ORY → IBZ May 20, 04:20 UTCMay 20, 05:55 UTC1h 36m
2026-05-19 TVF43BM OPO → ORY May 19, 18:20 UTCMay 19, 20:05 UTC1h 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-HSXK page for operator, model, and routing details .

Mode-S 39DE4A frequently asked

What is Mode-S code 39DE4A?
39DE4A is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HSXK.
Where is Mode-S 39DE4A registered?
Mode-S code 39DE4A is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39DE4A broadcasting right now?
Yes. Mode-S 39DE4A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39DE4A, octal 16357112, decimal 3,792,458.
What flights does 39DE4A operate?
Mode-S 39DE4A has broadcast 20 distinct callsigns, including TVF77CG, TVF49MD, TVF31HC, TVF73RQ, TVF4370.