Apparatus

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sensors Mode-S transponder

39A203

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HIQD · BOEING 737-800

Hex
39A203
Octal
16321003
Decimal
3,777,027
Country
FR
Tail
F-HIQD
Type
B738
No current signal · last broadcast Jul 26, 21:20 UTC
Flights observed
242
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 21:20 UTC

Last known position

Most recent position reported by Mode-S 39A203.

Country allocation

The ICAO 24-bit address 39A203 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
FPO7NN - 82 2026-07-26
FPO9NN - 77 2026-07-24
FPO7LQ Europe Airpost 11 2026-07-23
FPO6LQ - 11 2026-07-23
TAY8KN - 8 2026-07-14
TAY3KN - 8 2026-07-14
FPO8RB - 6 2026-06-17
FPO8IE - 6 2026-04-17
FPO6RB - 6 2026-06-17
FPO9IE - 5 2026-04-17
FPO4UD - 4 2026-07-17
FPO4JU - 4 2026-04-24
FPO3UD - 3 2026-07-17
FPO6SO - 2 2026-06-18
FPO3JU Europe Airpost 2 2026-04-24
FDX4630 - 2 2026-06-27
FPO9WW - 1 2026-06-09
FPO7SNN - 1 2026-05-13
FPO5SO - 1 2026-06-18
FPO4394 Europe Airpost 1 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FPO7NN - Jul 26, 20:55 UTCJul 26, 21:20 UTC25m
2026-07-26 FPO7NN - Jul 26, 18:35 UTCJul 26, 20:00 UTC1h 25m
2026-07-24 FPO4394 SNN → DUB Jul 24, 21:20 UTCJul 24, 22:30 UTC1h 10m
2026-07-24 FPO9NN - Jul 24, 19:35 UTCJul 24, 20:05 UTC30m
2026-07-24 FPO7NN - Jul 24, 04:40 UTCJul 24, 05:05 UTC25m
2026-07-24 FPO7NN - Jul 24, 02:25 UTCJul 24, 03:40 UTC1h 15m
2026-07-23 FPO7LQ BLQ → CDG Jul 23, 21:15 UTCJul 23, 22:40 UTC1h 25m
2026-07-23 FPO6LQ - Jul 23, 02:05 UTCJul 23, 03:15 UTC1h 10m
2026-07-22 FPO7LQ BLQ → CDG Jul 22, 21:15 UTCJul 22, 22:45 UTC1h 30m
2026-07-22 FPO6LQ CDG → BLQ Jul 22, 02:15 UTCJul 22, 03:20 UTC1h 5m
2026-07-21 FPO7LQ BLQ → CDG Jul 21, 21:10 UTCJul 21, 22:40 UTC1h 30m
2026-07-21 FPO6LQ - Jul 21, 05:05 UTCJul 21, 05:15 UTC10m
2026-07-21 FPO6LQ CDG → BLQ Jul 21, 02:30 UTCJul 21, 03:35 UTC1h 5m
2026-07-20 FPO9NN DUB → CDG Jul 20, 21:15 UTCJul 20, 22:30 UTC1h 15m
2026-07-20 FPO9NN - Jul 20, 19:40 UTCJul 20, 20:10 UTC30m
2026-07-19 FPO7NN - Jul 19, 21:05 UTCJul 19, 21:40 UTC35m
2026-07-19 FPO7NN - Jul 19, 18:35 UTCJul 19, 19:55 UTC1h 20m
2026-07-17 FPO4UD - Jul 17, 21:15 UTCJul 17, 22:15 UTC1h 0m
2026-07-17 FPO4UD - Jul 17, 18:50 UTCJul 17, 20:10 UTC1h 20m
2026-07-17 FPO3UD CDG → BUD Jul 17, 02:59 UTCJul 17, 04:39 UTC1h 40m
2026-07-16 FPO9NN DUB → CDG Jul 16, 21:10 UTCJul 16, 22:30 UTC1h 20m
2026-07-16 FPO9NN - Jul 16, 19:40 UTCJul 16, 20:05 UTC25m
2026-07-16 FPO7NN - Jul 16, 04:45 UTCJul 16, 05:10 UTC25m
2026-07-16 FPO7NN CDG → DUB Jul 16, 02:30 UTCJul 16, 03:45 UTC1h 15m
2026-07-15 FPO9NN - Jul 15, 21:10 UTCJul 15, 22:20 UTC1h 10m
2026-07-15 FPO9NN - Jul 15, 19:35 UTCJul 15, 20:00 UTC25m
2026-07-15 FPO7NN - Jul 15, 04:50 UTCJul 15, 05:20 UTC30m
2026-07-15 FPO7NN - Jul 15, 02:30 UTCJul 15, 03:45 UTC1h 15m
2026-07-14 TAY8KN PRG → CDG Jul 14, 20:45 UTCJul 14, 22:05 UTC1h 20m
2026-07-14 TAY8KN - Jul 14, 18:15 UTCJul 14, 19:40 UTC1h 25m
2026-07-14 TAY3KN WAW → KUN Jul 14, 05:55 UTCJul 14, 06:35 UTC40m
2026-07-14 TAY3KN - Jul 14, 02:30 UTCJul 14, 04:30 UTC2h 0m
2026-07-13 FPO9NN - Jul 13, 21:10 UTCJul 13, 22:25 UTC1h 15m
2026-07-13 FPO9NN - Jul 13, 19:35 UTCJul 13, 20:05 UTC30m
2026-07-12 FPO7NN - Jul 12, 21:10 UTCJul 12, 21:35 UTC25m
2026-07-12 FPO7NN - Jul 12, 18:45 UTCJul 12, 19:55 UTC1h 10m
2026-07-10 FPO9NN - Jul 10, 21:55 UTCJul 10, 23:10 UTC1h 15m
2026-07-10 FPO9NN - Jul 10, 20:30 UTCJul 10, 20:55 UTC25m
2026-07-10 FPO7NN - Jul 10, 04:40 UTCJul 10, 05:10 UTC30m
2026-07-10 FPO7NN - Jul 10, 02:20 UTCJul 10, 03:35 UTC1h 15m
2026-07-09 FPO9NN DUB → CDG Jul 9, 21:15 UTCJul 9, 22:25 UTC1h 10m
2026-07-09 FPO9NN - Jul 9, 19:25 UTCJul 9, 19:50 UTC25m
2026-07-09 FPO7NN - Jul 9, 04:45 UTCJul 9, 05:10 UTC25m
2026-07-09 FPO7NN - Jul 9, 02:25 UTCJul 9, 03:40 UTC1h 15m
2026-07-08 FPO9NN DUB → CDG Jul 8, 21:10 UTCJul 8, 22:25 UTC1h 15m
2026-07-08 FPO9NN - Jul 8, 19:30 UTCJul 8, 19:55 UTC25m
2026-07-08 FPO7NN - Jul 8, 04:40 UTCJul 8, 05:05 UTC25m
2026-07-08 FPO7NN - Jul 8, 02:30 UTCJul 8, 03:40 UTC1h 10m
2026-07-07 FPO9NN DUB → CDG Jul 7, 21:10 UTCJul 7, 22:25 UTC1h 15m
2026-07-07 FPO9NN - Jul 7, 19:40 UTCJul 7, 20:10 UTC30m

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

Mode-S 39A203 frequently asked

What is Mode-S code 39A203?
39A203 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HIQD.
Where is Mode-S 39A203 registered?
Mode-S code 39A203 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39A203 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39A203, octal 16321003, decimal 3,777,027.
What flights does 39A203 operate?
Mode-S 39A203 has broadcast 20 distinct callsigns, including FPO7NN, FPO9NN, FPO7LQ, FPO6LQ, TAY8KN.