sensors Mode-S transponder

39DE57

ICAO 24-bit transponder address · allocated to France

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

Hex
39DE57
Octal
16357127
Decimal
3,792,471
Country
FR
Tail
F-HXSX
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
438
Distinct callsigns
20
Country
FR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 39DE57.

Country allocation

The ICAO 24-bit address 39DE57 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 - 7 2026-07-07
TVF73RQ - 7 2026-07-09
TVF41JM - 7 2026-07-10
TVF31HC - 7 2026-07-07
TVF99PC - 6 2026-06-24
TVF99KE Transavia France 6 2026-06-24
TVF76SG - 6 2026-06-11
TVF73KL - 6 2026-07-11
TVF43PN - 6 2026-06-10
TVF40DK - 6 2026-05-15
TVF38CS - 6 2026-06-23
TVF35DL - 6 2026-06-26
TVF25AT - 6 2026-07-12
TVF21ZC - 6 2026-06-26
TVF97AM - 5 2026-06-17
TVF96RJ - 5 2026-07-13
TVF79CL - 5 2026-07-03
TVF44TT - 5 2026-07-03
TVF15XC - 5 2026-07-14
TVF15DN Transavia France 5 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TVF19TV - Jul 14, 17:10 UTCJul 14, 17:45 UTC35m
2026-07-14 TVF72VT - Jul 14, 14:25 UTCJul 14, 15:50 UTC1h 25m
2026-07-14 TVF92NS - Jul 14, 11:45 UTCJul 14, 13:10 UTC1h 25m
2026-07-14 TVF73DJ - Jul 14, 08:55 UTCJul 14, 10:25 UTC1h 30m
2026-07-14 TVF15XC ATH → ORY Jul 14, 04:05 UTCJul 14, 07:10 UTC3h 5m
2026-07-13 TVF96RJ ORY → ATH Jul 13, 19:00 UTCJul 13, 21:35 UTC2h 35m
2026-07-13 TVF11JJ - Jul 13, 15:20 UTCJul 13, 17:20 UTC2h 0m
2026-07-13 TVF69JH - Jul 13, 11:30 UTCJul 13, 13:45 UTC2h 15m
2026-07-13 TVF97QZ - Jul 13, 07:55 UTCJul 13, 10:05 UTC2h 10m
2026-07-13 TVF24KU - Jul 13, 04:30 UTCJul 13, 06:50 UTC2h 20m
2026-07-12 TVF934S - Jul 12, 17:45 UTCJul 12, 20:01 UTC2h 15m
2026-07-12 TVF15GP - Jul 12, 14:25 UTCJul 12, 16:45 UTC2h 20m
2026-07-12 TVF31MA PMI → ORY Jul 12, 11:10 UTCJul 12, 12:45 UTC1h 35m
2026-07-12 TVF93EP - Jul 12, 08:10 UTCJul 12, 09:45 UTC1h 35m
2026-07-12 TVF25AT BER → ORY Jul 12, 05:10 UTCJul 12, 06:40 UTC1h 30m
2026-07-11 TVF73KL ORY → BER Jul 11, 19:05 UTCJul 11, 20:25 UTC1h 20m
2026-07-11 TVF38EU DBV → ORY Jul 11, 15:40 UTCJul 11, 17:50 UTC2h 10m
2026-07-11 TVF52LG ORY → DBV Jul 11, 12:50 UTCJul 11, 14:45 UTC1h 55m
2026-07-11 TVF18UU - Jul 11, 09:20 UTCJul 11, 11:45 UTC2h 25m
2026-07-11 TVF43WX - Jul 11, 05:55 UTCJul 11, 08:05 UTC2h 10m
2026-07-10 TVF50AD - Jul 10, 18:20 UTCJul 10, 19:55 UTC1h 35m
2026-07-10 TVF37MF - Jul 10, 15:20 UTCJul 10, 17:05 UTC1h 45m
2026-07-10 TVF47TR VIE → ORY Jul 10, 11:40 UTCJul 10, 13:25 UTC1h 45m
2026-07-10 TVF61HP ORY → VIE Jul 10, 08:55 UTCJul 10, 10:30 UTC1h 35m
2026-07-10 TVF41JM ARN → ORY Jul 10, 05:05 UTCJul 10, 07:30 UTC2h 25m
2026-07-09 TVF73RQ ORY → ARN Jul 9, 18:45 UTCJul 9, 21:00 UTC2h 15m
2026-07-09 TVF8965 - Jul 9, 15:10 UTCJul 9, 17:25 UTC2h 15m
2026-07-09 TVF8964 - Jul 9, 11:45 UTCJul 9, 13:55 UTC2h 10m
2026-07-09 TVF41HV - Jul 9, 08:30 UTCJul 9, 10:10 UTC1h 40m
2026-07-09 TVF88JV ORY → BER Jul 9, 06:05 UTCJul 9, 07:25 UTC1h 20m
2026-07-08 TVF73QA DUB → ORY Jul 8, 19:40 UTCJul 8, 20:55 UTC1h 15m
2026-07-08 TVF11NB ORY → DUB Jul 8, 16:50 UTCJul 8, 18:15 UTC1h 25m
2026-07-08 TVF57PQ - Jul 8, 13:10 UTCJul 8, 14:45 UTC1h 35m
2026-07-08 TVF56JZ ORY → MAH Jul 8, 10:35 UTCJul 8, 12:00 UTC1h 25m
2026-07-08 TVF41JM ARN → ORY Jul 8, 04:50 UTCJul 8, 06:55 UTC2h 5m
2026-07-07 TVF73RQ ORY → ARN Jul 7, 18:25 UTCJul 7, 20:40 UTC2h 15m
2026-07-07 TVF31HC ARN → ORY Jul 7, 14:50 UTCJul 7, 17:00 UTC2h 10m
2026-07-07 TVF77CG ORY → ARN Jul 7, 11:30 UTCJul 7, 13:40 UTC2h 10m
2026-07-07 TVF41HV BER → ORY Jul 7, 08:50 UTCJul 7, 10:10 UTC1h 20m
2026-07-07 TVF88JV ORY → BER Jul 7, 06:10 UTCJul 7, 07:35 UTC1h 25m
2026-07-06 TVF86JW OPO → ORY Jul 6, 15:25 UTCJul 6, 17:10 UTC1h 45m
2026-07-06 TVF14QM - Jul 6, 12:55 UTCJul 6, 14:20 UTC1h 25m
2026-07-06 TVF25RY OPO → BES Jul 6, 10:40 UTCJul 6, 12:05 UTC1h 25m
2026-07-06 TVF92QW ORY → OPO Jul 6, 07:55 UTCJul 6, 09:40 UTC1h 45m
2026-07-05 TVF19TV - Jul 5, 18:10 UTCJul 5, 19:55 UTC1h 45m
2026-07-05 TVF72VT - Jul 5, 14:40 UTCJul 5, 16:10 UTC1h 30m
2026-07-05 TVF31MA - Jul 5, 11:05 UTCJul 5, 12:40 UTC1h 35m
2026-07-05 TVF93EP - Jul 5, 08:00 UTCJul 5, 09:30 UTC1h 30m
2026-07-05 TVF25AT BER → ORY Jul 5, 05:10 UTCJul 5, 06:35 UTC1h 25m
2026-07-04 TVF73KL ORY → BER Jul 4, 19:15 UTCJul 4, 20:40 UTC1h 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-HXSX page for operator, model, and routing details .

Mode-S 39DE57 frequently asked

What is Mode-S code 39DE57?
39DE57 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HXSX.
Where is Mode-S 39DE57 registered?
Mode-S code 39DE57 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39DE57 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39DE57, octal 16357127, decimal 3,792,471.
What flights does 39DE57 operate?
Mode-S 39DE57 has broadcast 20 distinct callsigns, including TVF77CG, TVF73RQ, TVF41JM, TVF31HC, TVF99PC.