sensors Mode-S transponder

39DE51

ICAO 24-bit transponder address · allocated to France

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

Hex
39DE51
Octal
16357121
Decimal
3,792,465
Country
FR
Tail
F-HXSR
Type
A20N
Broadcasting now · callsign TVF93GW · 37,000 ft
Flights observed
360
Distinct callsigns
20
Country
FR
Last broadcast
1d ago

Current position

39DE51 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39DE51 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
TVF39PQ - 8 2026-07-09
TVF21CH - 8 2026-07-09
TVF15GP - 6 2026-07-08
TVF81AZ - 5 2026-05-27
TVF76SG - 5 2026-06-29
TVF73KL - 5 2026-07-03
TVF64TW Transavia France 5 2026-05-27
TVF59WT Transavia France 5 2026-06-07
TVF58DM Transavia France 5 2026-06-10
TVF539X - 5 2026-06-06
TVF43PN - 5 2026-06-28
TVF4370 Transavia France 5 2026-06-09
TVF3029 Transavia France 5 2026-04-18
TVF25AT - 5 2026-07-04
TVF98NQ - 4 2026-06-27
TVF49MD - 4 2026-05-28
TVF276D - 4 2026-06-23
TVF25CQ - 4 2026-07-05
TVF235L Transavia France 4 2026-05-28
TVF21ZC - 4 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 TVF206H IBZ → ORY Jul 12, 19:20 UTCJul 12, 20:50 UTC1h 30m
2026-07-12 TVF20BT ORY → IBZ Jul 12, 16:35 UTCJul 12, 18:10 UTC1h 35m
2026-07-12 TVF783R ORY → ORY Jul 12, 08:01 UTCJul 12, 14:40 UTC6h 40m
2026-07-12 TVF54ZE - Jul 12, 04:55 UTCJul 12, 06:30 UTC1h 35m
2026-07-11 TVF85UD - Jul 11, 19:00 UTCJul 11, 20:35 UTC1h 35m
2026-07-11 TVF591U ORY → ORY Jul 11, 10:15 UTCJul 11, 17:25 UTC7h 10m
2026-07-11 TVF739F MAH → ORY Jul 11, 07:15 UTCJul 11, 08:45 UTC1h 30m
2026-07-11 TVF68FN ORY → MAH Jul 11, 04:50 UTCJul 11, 06:20 UTC1h 30m
2026-07-10 TVF7929 EDI → ORY Jul 10, 19:10 UTCJul 10, 20:40 UTC1h 30m
2026-07-10 TVF58GB ORY → EDI Jul 10, 16:35 UTCJul 10, 17:55 UTC1h 20m
2026-07-10 TVF17JX SKG → ORY Jul 10, 12:30 UTCJul 10, 15:15 UTC2h 45m
2026-07-10 TVF32JE ORY → SKG Jul 10, 08:45 UTCJul 10, 11:20 UTC2h 35m
2026-07-09 TVF39PQ ATH → ORY Jul 9, 16:15 UTCJul 9, 19:20 UTC3h 5m
2026-07-09 TVF21CH ORY → ATH Jul 9, 12:20 UTCJul 9, 15:10 UTC2h 50m
2026-07-09 TVF30VF - Jul 9, 09:30 UTCJul 9, 10:55 UTC1h 25m
2026-07-09 TVF36DY - Jul 9, 06:25 UTCJul 9, 07:50 UTC1h 25m
2026-07-08 TVF934S - Jul 8, 18:55 UTCJul 8, 21:15 UTC2h 20m
2026-07-08 TVF15GP - Jul 8, 15:30 UTCJul 8, 17:40 UTC2h 10m
2026-07-08 TVF38EG - Jul 8, 10:35 UTCJul 8, 12:50 UTC2h 15m
2026-07-08 TVF44UJ ORY → BRI Jul 8, 07:15 UTCJul 8, 09:10 UTC1h 55m
2026-07-08 TVF83MR BCN → ORY Jul 8, 04:30 UTCJul 8, 06:00 UTC1h 30m
2026-07-07 TVF32DR ORY → BCN Jul 7, 19:35 UTCJul 7, 20:50 UTC1h 15m
2026-07-07 TVF60SE - Jul 7, 15:50 UTCJul 7, 18:00 UTC2h 10m
2026-07-07 TVF63YH - Jul 7, 12:50 UTCJul 7, 14:45 UTC1h 55m
2026-07-07 TVF12RK MXP → ORY Jul 7, 10:20 UTCJul 7, 11:20 UTC1h 0m
2026-07-07 TVF119W ORY → MXP Jul 7, 07:40 UTCJul 7, 09:00 UTC1h 20m
2026-07-07 TVF45BX - Jul 7, 04:40 UTCJul 7, 06:25 UTC1h 45m
2026-07-06 TVF97AM - Jul 6, 19:55 UTCJul 6, 21:30 UTC1h 35m
2026-07-06 TVF89NN BER → ORY Jul 6, 17:10 UTCJul 6, 18:30 UTC1h 20m
2026-07-06 TVF77EX ORY → BER Jul 6, 14:55 UTCJul 6, 16:20 UTC1h 25m
2026-07-06 TVF99KE FNC → ORY Jul 6, 10:25 UTCJul 6, 13:45 UTC3h 20m
2026-07-06 TVF99PC ORY → ATH Jul 6, 06:25 UTCJul 6, 09:10 UTC2h 45m
2026-07-05 TVF99QP BCN → ORY Jul 5, 09:15 UTCJul 5, 10:45 UTC1h 30m
2026-07-05 TVF25CQ ORY → BCN Jul 5, 06:05 UTCJul 5, 07:15 UTC1h 10m
2026-07-04 TVF43BM OPO → ORY Jul 4, 18:55 UTCJul 4, 20:40 UTC1h 45m
2026-07-04 TVF95NL ORY → OPO Jul 4, 15:50 UTCJul 4, 17:35 UTC1h 45m
2026-07-04 TVF95DU - Jul 4, 11:35 UTCJul 4, 13:05 UTC1h 30m
2026-07-04 TVF4632 - Jul 4, 08:15 UTCJul 4, 09:50 UTC1h 35m
2026-07-04 TVF25AT BER → ORY Jul 4, 05:05 UTCJul 4, 06:30 UTC1h 25m
2026-07-03 TVF73KL ORY → BER Jul 3, 18:50 UTCJul 3, 20:15 UTC1h 25m
2026-07-03 TVF94MC MXP → ORY Jul 3, 16:35 UTCJul 3, 17:35 UTC1h 0m
2026-07-03 TVF91UL ORY → MXP Jul 3, 13:55 UTCJul 3, 15:00 UTC1h 5m
2026-07-03 TVF11JJ - Jul 3, 10:45 UTCJul 3, 12:30 UTC1h 45m
2026-07-03 TVF69JH - Jul 3, 07:40 UTCJul 3, 09:30 UTC1h 50m
2026-07-03 TVF45BX - Jul 3, 04:45 UTCJul 3, 06:25 UTC1h 40m
2026-07-02 TVF97AM ORY → FCO Jul 2, 19:40 UTCJul 2, 21:20 UTC1h 40m
2026-07-02 TVF60SE - Jul 2, 16:20 UTCJul 2, 18:20 UTC2h 0m
2026-07-02 TVF63YH - Jul 2, 13:05 UTCJul 2, 15:10 UTC2h 5m
2026-07-02 TVF67YK - Jul 2, 08:55 UTCJul 2, 11:40 UTC2h 45m
2026-07-02 TVF59SH - Jul 2, 04:55 UTCJul 2, 07:25 UTC2h 30m

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

Mode-S 39DE51 frequently asked

What is Mode-S code 39DE51?
39DE51 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HXSR.
Where is Mode-S 39DE51 registered?
Mode-S code 39DE51 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39DE51 broadcasting right now?
Yes. Mode-S 39DE51 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39DE51, octal 16357121, decimal 3,792,465.
What flights does 39DE51 operate?
Mode-S 39DE51 has broadcast 20 distinct callsigns, including TVF39PQ, TVF21CH, TVF15GP, TVF81AZ, TVF76SG.