Apparatus

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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 TVF39ET · 38,000 ft
Flights observed
418
Distinct callsigns
20
Country
FR
Last broadcast
3h 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
TVF73RQ - 7 2026-06-28
TVF41JM - 7 2026-06-29
TVF591U - 6 2026-07-05
TVF26SK - 6 2026-07-07
TVF85UD - 5 2026-06-23
TVF77CG - 5 2026-05-27
TVF64TW - 5 2026-07-08
TVF49MD - 5 2026-05-29
TVF4370 - 5 2026-06-19
TVF42VD - 5 2026-07-07
TVF31HC - 5 2026-05-27
TVF30QP - 5 2026-06-15
TVF98NQ - 4 2026-07-09
TVF97PR - 4 2026-07-06
TVF97AM - 4 2026-07-01
TVF95BQ - 4 2026-06-12
TVF8336 - 4 2026-07-05
TVF82QK - 4 2026-07-09
TVF81AZ - 4 2026-07-08
TVF68JY - 4 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TVF18AR - Jul 14, 11:35 UTCJul 14, 15:30 UTC3h 55m
2026-07-14 TVF88DX - Jul 14, 08:55 UTCJul 14, 10:30 UTC1h 35m
2026-07-14 TVF55ZF ORY → ALC Jul 14, 04:50 UTCJul 14, 06:40 UTC1h 50m
2026-07-13 TVF18JC FAO → ORY Jul 13, 16:35 UTCJul 13, 18:35 UTC2h 0m
2026-07-13 TVF19CM ORY → FAO Jul 13, 13:15 UTCJul 13, 15:40 UTC2h 25m
2026-07-13 TVF33XD - Jul 13, 09:25 UTCJul 13, 11:50 UTC2h 25m
2026-07-13 TVF20SS - Jul 13, 05:01 UTCJul 13, 06:45 UTC1h 45m
2026-07-11 TVF62NE SVQ → ORY Jul 11, 18:00 UTCJul 11, 19:50 UTC1h 50m
2026-07-11 TVF67AK ORY → SVQ Jul 11, 14:55 UTCJul 11, 17:00 UTC2h 5m
2026-07-11 TVF33VV - Jul 11, 09:55 UTCJul 11, 13:05 UTC3h 10m
2026-07-11 TVF53ZY - Jul 11, 04:55 UTCJul 11, 07:55 UTC3h 0m
2026-07-10 TVF39PQ ATH → ORY Jul 10, 17:35 UTCJul 10, 20:35 UTC3h 0m
2026-07-10 TVF21CH ORY → ATH Jul 10, 13:40 UTCJul 10, 16:25 UTC2h 45m
2026-07-10 TVF13HR CPH → ORY Jul 10, 10:00 UTCJul 10, 11:45 UTC1h 45m
2026-07-10 TVF13TH ORY → CPH Jul 10, 07:15 UTCJul 10, 08:45 UTC1h 30m
2026-07-10 TVF83MR BCN → ORY Jul 10, 04:25 UTCJul 10, 05:45 UTC1h 20m
2026-07-09 TVF32DR ORY → BCN Jul 9, 20:00 UTCJul 9, 21:20 UTC1h 20m
2026-07-09 TVF98NQ - Jul 9, 16:55 UTCJul 9, 18:35 UTC1h 40m
2026-07-09 TVF82QK - Jul 9, 14:05 UTCJul 9, 15:40 UTC1h 35m
2026-07-09 TVF62GV ORY → ORY Jul 9, 04:45 UTCJul 9, 11:40 UTC6h 55m
2026-07-08 TVF81AZ BCN → ORY Jul 8, 17:40 UTCJul 8, 18:55 UTC1h 15m
2026-07-08 TVF64TW ORY → BCN Jul 8, 15:00 UTCJul 8, 16:20 UTC1h 20m
2026-07-08 TVF37MH - Jul 8, 11:30 UTCJul 8, 13:30 UTC2h 0m
2026-07-08 TVF43GD - Jul 8, 08:20 UTCJul 8, 10:10 UTC1h 50m
2026-07-08 TVF25AT - Jul 8, 06:30 UTCJul 8, 06:45 UTC15m
2026-07-08 TVF25AT - Jul 8, 05:20 UTCJul 8, 06:25 UTC1h 5m
2026-07-07 TVF73KL ORY → BER Jul 7, 19:15 UTCJul 7, 20:40 UTC1h 25m
2026-07-07 TVF26SK - Jul 7, 14:15 UTCJul 7, 17:35 UTC3h 20m
2026-07-07 TVF42VD - Jul 7, 10:00 UTCJul 7, 12:55 UTC2h 55m
2026-07-06 TVF276D ORY → ORY Jul 6, 18:10 UTCJul 7, 08:25 UTC14h 15m
2026-07-06 TVF97PR BER → ORY Jul 6, 15:20 UTCJul 6, 16:40 UTC1h 20m
2026-07-06 TVF34PH ORY → BER Jul 6, 12:55 UTCJul 6, 14:15 UTC1h 20m
2026-07-06 TVF67YK - Jul 6, 09:00 UTCJul 6, 11:40 UTC2h 40m
2026-07-06 TVF59SH - Jul 6, 04:40 UTCJul 6, 07:25 UTC2h 45m
2026-07-05 TVF591U ORY → ORY Jul 5, 12:10 UTCJul 5, 19:25 UTC7h 15m
2026-07-05 TVF8337 - Jul 5, 08:15 UTCJul 5, 10:25 UTC2h 10m
2026-07-05 TVF8336 - Jul 5, 05:05 UTCJul 5, 06:55 UTC1h 50m
2026-07-04 TVF15MT BCN → ORY Jul 4, 16:40 UTCJul 4, 18:05 UTC1h 25m
2026-07-04 TVF50FL ORY → BCN Jul 4, 14:05 UTCJul 4, 15:25 UTC1h 20m
2026-07-04 TVF63EC - Jul 4, 09:25 UTCJul 4, 12:55 UTC3h 30m
2026-07-04 TVF75WS - Jul 4, 04:40 UTCJul 4, 08:15 UTC3h 35m
2026-07-03 TVF34TB - Jul 3, 13:40 UTCJul 3, 16:50 UTC3h 10m
2026-07-03 TVF46KG - Jul 3, 08:45 UTCJul 3, 11:45 UTC3h 0m
2026-07-03 TVF59WT - Jul 3, 03:45 UTCJul 3, 06:50 UTC3h 5m
2026-07-02 TVF539X - Jul 2, 18:05 UTCJul 2, 21:05 UTC3h 0m
2026-07-02 TVF591U ORY → ORY Jul 2, 09:35 UTCJul 2, 16:40 UTC7h 5m
2026-07-02 TVF45BX - Jul 2, 06:35 UTCJul 2, 08:15 UTC1h 40m
2026-07-01 TVF97AM - Jul 1, 19:35 UTCJul 1, 21:00 UTC1h 25m
2026-07-01 TVF36PA - Jul 1, 16:05 UTCJul 1, 18:20 UTC2h 15m
2026-07-01 TVF37VH - Jul 1, 13:10 UTCJul 1, 15:05 UTC1h 55m

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 TVF73RQ, TVF41JM, TVF591U, TVF26SK, TVF85UD.