Apparatus

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sensors Mode-S transponder

39AC06

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HLAG · CESSNA 172 Skyhawk

Hex
39AC06
Octal
16326006
Decimal
3,779,590
Country
FR
Tail
F-HLAG
Type
C172
No current signal · last broadcast 1d ago
Flights observed
225
Distinct callsigns
20
Country
FR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 39AC06.

Country allocation

The ICAO 24-bit address 39AC06 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
FHLAG - 141 2026-07-10
BLT302C - 8 2026-06-17
BLT304C - 7 2026-06-18
FLHAG - 4 2026-06-05
BLT717P - 4 2026-06-18
BLT151E - 4 2026-05-28
BLT813H - 3 2026-05-11
BLT811H - 3 2026-05-11
BLT715P - 3 2026-06-18
BLT308C - 3 2026-05-28
BLT231F - 3 2026-06-24
BLT817H - 2 2026-05-11
BLT815H - 2 2026-05-11
BLT711P - 2 2026-06-18
BLT313B - 2 2026-04-14
BLT311B - 2 2026-04-14
BLT184C - 2 2026-06-19
BLT182C - 2 2026-06-19
BLT153E - 2 2026-05-28
BLT948M - 1 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 BLT034C - Jul 13, 08:10 UTCJul 13, 09:15 UTC1h 5m
2026-07-13 BLT032C - Jul 13, 05:55 UTCJul 13, 07:15 UTC1h 20m
2026-07-10 FHLAG - Jul 10, 14:25 UTCJul 10, 15:10 UTC45m
2026-07-10 FHLAG - Jul 10, 13:00 UTCJul 10, 13:45 UTC45m
2026-07-10 FHLAG - Jul 10, 08:10 UTCJul 10, 09:55 UTC1h 45m
2026-07-10 FHLAG - Jul 10, 06:25 UTCJul 10, 07:15 UTC50m
2026-07-10 FHLAG - Jul 10, 05:15 UTCJul 10, 05:45 UTC30m
2026-07-09 BLT068D - Jul 9, 16:10 UTCJul 9, 17:30 UTC1h 20m
2026-07-09 BLT066D - Jul 9, 14:15 UTCJul 9, 15:25 UTC1h 10m
2026-07-09 BLT062D - Jul 9, 07:05 UTCJul 9, 09:55 UTC2h 50m
2026-07-08 FHLAG - Jul 8, 14:25 UTCJul 8, 15:15 UTC50m
2026-07-08 FHLAG - Jul 8, 12:35 UTCJul 8, 13:20 UTC45m
2026-07-08 FHLAG - Jul 8, 09:10 UTCJul 8, 09:55 UTC45m
2026-07-08 FHLAG - Jul 8, 07:55 UTCJul 8, 08:25 UTC30m
2026-07-08 FHLAG - Jul 8, 06:00 UTCJul 8, 06:30 UTC30m
2026-07-07 FHLAG - Jul 7, 11:05 UTCJul 7, 12:40 UTC1h 35m
2026-07-07 FHLAG - Jul 7, 09:35 UTCJul 7, 10:15 UTC40m
2026-07-07 FHLAG - Jul 7, 07:25 UTCJul 7, 08:50 UTC1h 25m
2026-07-07 FHLAG - Jul 7, 06:15 UTCJul 7, 06:45 UTC30m
2026-07-06 FHLAG - Jul 6, 12:20 UTCJul 6, 12:55 UTC35m
2026-07-06 FHLAG - Jul 6, 10:40 UTCJul 6, 11:20 UTC40m
2026-07-06 FHLAG TNF → TNF Jul 6, 08:40 UTCJul 6, 09:05 UTC25m
2026-07-06 FHLAG - Jul 6, 06:55 UTCJul 6, 07:50 UTC55m
2026-07-06 FHLAG TNF → TNF Jul 6, 05:50 UTCJul 6, 06:15 UTC25m
2026-07-03 BLT744C - Jul 3, 14:15 UTCJul 3, 15:05 UTC50m
2026-07-03 BLT742C - Jul 3, 11:35 UTCJul 3, 12:25 UTC50m
2026-07-03 FHLAG - Jul 3, 10:05 UTCJul 3, 10:30 UTC25m
2026-07-03 FHLAG - Jul 3, 07:55 UTCJul 3, 08:30 UTC35m
2026-07-03 FHLAG - Jul 3, 06:55 UTCJul 3, 07:15 UTC20m
2026-07-02 FHLAG - Jul 2, 12:40 UTCJul 2, 15:30 UTC2h 50m
2026-07-02 FHLAG - Jul 2, 09:45 UTCJul 2, 10:45 UTC1h 0m
2026-07-02 FHLAG - Jul 2, 07:20 UTCJul 2, 08:25 UTC1h 5m
2026-06-30 FHLAG - Jun 30, 15:40 UTCJun 30, 16:15 UTC35m
2026-06-30 FHLAG - Jun 30, 12:45 UTCJun 30, 13:25 UTC40m
2026-06-29 FHLAG - Jun 29, 15:54 UTCJun 29, 16:19 UTC25m
2026-06-29 FHLAG - Jun 29, 14:34 UTCJun 29, 15:14 UTC40m
2026-06-29 FHLAG TNF → TNF Jun 29, 13:34 UTCJun 29, 13:54 UTC20m
2026-06-29 FHLAG TNF → TNF Jun 29, 06:34 UTCJun 29, 07:05 UTC30m
2026-06-26 FHLAG - Jun 26, 08:40 UTCJun 26, 09:30 UTC50m
2026-06-26 FHLAG - Jun 26, 07:05 UTCJun 26, 07:50 UTC45m
2026-06-25 FHLAG - Jun 25, 08:45 UTCJun 25, 09:34 UTC50m
2026-06-25 FHLAG - Jun 25, 06:44 UTCJun 25, 07:49 UTC1h 5m
2026-06-25 FHLAG - Jun 25, 03:50 UTCJun 25, 04:14 UTC25m
2026-06-25 FHLAG - Jun 25, 00:55 UTCJun 25, 03:10 UTC2h 15m
2026-06-24 BLT231F - Jun 24, 22:49 UTCJun 25, 00:05 UTC1h 15m
2026-06-24 BLT231F - Jun 24, 20:30 UTCJun 24, 21:50 UTC1h 20m
2026-06-24 FHLAG - Jun 24, 06:35 UTCJun 24, 07:30 UTC55m
2026-06-23 FHLAG - Jun 23, 08:45 UTCJun 23, 10:10 UTC1h 25m
2026-06-23 FHLAG - Jun 23, 07:05 UTCJun 23, 08:09 UTC1h 5m
2026-06-23 FHLAG - Jun 23, 04:00 UTCJun 23, 04:29 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-HLAG page for operator, model, and routing details .

Mode-S 39AC06 frequently asked

What is Mode-S code 39AC06?
39AC06 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HLAG.
Where is Mode-S 39AC06 registered?
Mode-S code 39AC06 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39AC06 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39AC06, octal 16326006, decimal 3,779,590.
What flights does 39AC06 operate?
Mode-S 39AC06 has broadcast 20 distinct callsigns, including FHLAG, BLT302C, BLT304C, FLHAG, BLT717P.