sensors Mode-S transponder

39D304

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HUYE · BOEING 737-800

Hex
39D304
Octal
16351404
Decimal
3,789,572
Country
FR
Tail
F-HUYE
Type
B738
No current signal · last broadcast 2h ago
Flights observed
189
Distinct callsigns
20
Country
FR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 39D304.

Country allocation

The ICAO 24-bit address 39D304 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
TVF15TZ - 4 2026-04-16
TVF8859 Transavia France 3 2026-05-02
TVF46GH Transavia France 3 2026-05-12
TVF99LJ - 2 2026-04-24
TVF9819 Transavia France 2 2026-04-23
TVF9803 - 2 2026-04-21
TVF96UW - 2 2026-05-11
TVF94DW - 2 2026-05-27
TVF91UL - 2 2026-04-13
TVF915F - 2 2026-05-05
TVF88XB - 2 2026-04-15
TVF8858 - 2 2026-04-16
TVF8496 Transavia France 2 2026-04-28
TVF83PE - 2 2026-04-13
TVF82XT - 2 2026-05-19
TVF82AQ - 2 2026-05-29
TVF8222 Transavia France 2 2026-05-06
TVF81BZ - 2 2026-04-14
TVF8023 Transavia France 2 2026-05-19
TVF79GC - 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TVF24AC - May 29, 19:10 UTCMay 29, 20:40 UTC1h 30m
2026-05-29 TVF70DS - May 29, 16:20 UTCMay 29, 17:50 UTC1h 30m
2026-05-29 TVF79GC OPO → LYS May 29, 13:30 UTCMay 29, 15:20 UTC1h 50m
2026-05-29 TVF82AQ LYS → OPO May 29, 10:25 UTCMay 29, 12:10 UTC1h 45m
2026-05-29 TVF64HG - May 29, 07:15 UTCMay 29, 09:10 UTC1h 55m
2026-05-29 TVF26ZG - May 29, 04:05 UTCMay 29, 06:00 UTC1h 55m
2026-05-27 TVF94DW LYS → LYS May 27, 11:30 UTCMay 27, 21:20 UTC9h 50m
2026-05-26 TVF38ZQ - May 26, 09:55 UTCMay 26, 12:30 UTC2h 35m
2026-05-26 TVF52VN MRS → NTE May 26, 05:49 UTCMay 26, 08:34 UTC2h 45m
2026-05-25 TVF79GC OPO → LYS May 25, 18:55 UTCMay 25, 20:40 UTC1h 45m
2026-05-25 TVF82AQ LYS → OPO May 25, 15:55 UTCMay 25, 17:40 UTC1h 45m
2026-05-25 TVF912Z - May 25, 13:05 UTCMay 25, 14:30 UTC1h 25m
2026-05-25 TVF36JN - May 25, 10:20 UTCMay 25, 11:45 UTC1h 25m
2026-05-25 TVF543Y - May 25, 07:35 UTCMay 25, 09:00 UTC1h 25m
2026-05-25 TVF22MH - May 25, 04:25 UTCMay 25, 05:50 UTC1h 25m
2026-05-24 TVF8043 CAI → LYS May 24, 18:15 UTCMay 24, 21:45 UTC3h 30m
2026-05-24 TVF87LD - May 24, 12:55 UTCMay 24, 16:35 UTC3h 40m
2026-05-23 TVF69XS LYS → LYS May 23, 15:00 UTCMay 23, 21:30 UTC6h 31m
2026-05-23 TVF18SZ ORY → SVQ May 23, 10:55 UTCMay 23, 14:00 UTC3h 5m
2026-05-23 TVF19XH - May 23, 09:25 UTCMay 23, 09:35 UTC10m
2026-05-23 TVF19XH - May 23, 06:20 UTCMay 23, 08:40 UTC2h 20m
2026-05-22 TVF8705 MIR → LYS May 22, 14:55 UTCMay 22, 19:35 UTC4h 40m
2026-05-22 TVF8704 LYS → MIR May 22, 14:15 UTCMay 22, 14:45 UTC30m
2026-05-22 TVF38ZQ - May 22, 10:45 UTCMay 22, 13:25 UTC2h 40m
2026-05-22 TVF52VN MRS → NTE May 22, 06:40 UTCMay 22, 09:20 UTC2h 40m
2026-05-21 TVF37LE - May 21, 16:01 UTCMay 21, 18:40 UTC2h 40m
2026-05-21 TVF64UK - May 21, 12:20 UTCMay 21, 14:55 UTC2h 35m
2026-05-21 TVF42CU - May 21, 07:55 UTCMay 21, 10:35 UTC2h 40m
2026-05-21 TVF40JP - May 21, 04:20 UTCMay 21, 06:50 UTC2h 30m
2026-05-20 TVF8029 HRG → LYS May 20, 11:25 UTCMay 20, 21:40 UTC10h 15m
2026-05-19 TVF8023 DSS → LYS May 19, 17:15 UTCMay 19, 22:10 UTC4h 55m
2026-05-19 TVF82XT LYS → DSS May 19, 10:40 UTCMay 19, 15:55 UTC5h 15m
2026-05-19 TVF71CV - May 19, 04:30 UTCMay 19, 09:15 UTC4h 45m
2026-05-18 TVF8557 DJE → LYS May 18, 16:25 UTCMay 18, 21:40 UTC5h 14m
2026-05-18 TVF75QQ FAO → LYS May 18, 13:00 UTCMay 18, 15:05 UTC2h 5m
2026-05-18 TVF53VL LYS → FAO May 18, 09:45 UTCMay 18, 11:50 UTC2h 5m
2026-05-18 TVF8777 TUN → LYS May 18, 04:11 UTCMay 18, 08:30 UTC4h 20m
2026-05-17 TVF6879 TUN → LYS May 17, 18:01 UTCMay 17, 22:10 UTC4h 10m
2026-05-17 TVF94DW - May 17, 06:25 UTCMay 17, 16:50 UTC10h 25m
2026-05-16 TVF8023 DSS → LYS May 16, 15:55 UTCMay 16, 20:50 UTC4h 55m
2026-05-16 TVF82XT LYS → DSS May 16, 09:10 UTCMay 16, 14:35 UTC5h 25m
2026-05-15 TVF6879 TUN → LYS May 15, 18:15 UTCMay 15, 22:25 UTC4h 10m
2026-05-15 TVF89LP PMI → LYS May 15, 15:45 UTCMay 15, 16:50 UTC1h 5m
2026-05-15 TVF25XN - May 15, 13:00 UTCMay 15, 14:05 UTC1h 5m
2026-05-15 TVF81TS - May 15, 09:25 UTCMay 15, 11:20 UTC1h 55m
2026-05-15 TVF46VR - May 15, 05:30 UTCMay 15, 07:55 UTC2h 25m
2026-05-14 TVF62NE SVQ → ORY May 14, 18:55 UTCMay 14, 21:00 UTC2h 5m
2026-05-14 TVF67AK ORY → SVQ May 14, 15:45 UTCMay 14, 17:50 UTC2h 5m
2026-05-14 TVF38EG - May 14, 12:35 UTCMay 14, 14:40 UTC2h 5m
2026-05-14 TVF44UJ - May 14, 09:25 UTCMay 14, 11:10 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-HUYE page for operator, model, and routing details .

Mode-S 39D304 frequently asked

What is Mode-S code 39D304?
39D304 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUYE.
Where is Mode-S 39D304 registered?
Mode-S code 39D304 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D304 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 39D304, octal 16351404, decimal 3,789,572.
What flights does 39D304 operate?
Mode-S 39D304 has broadcast 20 distinct callsigns, including TVF15TZ, TVF8859, TVF46GH, TVF99LJ, TVF9819.