Apparatus

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sensors Mode-S transponder

3986AA

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HBVK · AIRBUS HELICOPTERS EC-120

Hex
3986AA
Octal
16303252
Decimal
3,770,026
Country
FR
Tail
F-HBVK
Type
EC20
No current signal · last broadcast 6h ago
Flights observed
66
Distinct callsigns
6
Country
FR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 3986AA.

Country allocation

The ICAO 24-bit address 3986AA 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 6 distinct

Callsign Airline Flights Last seen
FHBVK - 43 2026-06-25
FMY86R1 - 18 2026-06-05
FMY8785 - 2 2026-05-26
FMY8793 - 1 2026-06-18
FMY8792 - 1 2026-06-18
DERBY35 - 1 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-25 FHBVK - Jun 25, 08:45 UTCJun 25, 09:34 UTC50m
2026-06-25 FHBVK - Jun 25, 07:15 UTCJun 25, 07:59 UTC45m
2026-06-24 FHBVK - Jun 24, 07:50 UTCJun 24, 09:05 UTC1h 15m
2026-06-23 FHBVK - Jun 23, 07:55 UTCJun 23, 08:09 UTC15m
2026-06-23 FHBVK - Jun 23, 06:04 UTCJun 23, 06:15 UTC10m
2026-06-18 FMY8793 - Jun 18, 12:10 UTCJun 18, 13:10 UTC1h 0m
2026-06-18 FMY8792 - Jun 18, 07:50 UTCJun 18, 09:30 UTC1h 40m
2026-06-17 FHBVK - Jun 17, 12:45 UTCJun 17, 13:30 UTC45m
2026-06-17 FHBVK - Jun 17, 09:35 UTCJun 17, 10:20 UTC45m
2026-06-17 FHBVK - Jun 17, 07:45 UTCJun 17, 08:50 UTC1h 5m
2026-06-15 FHBVK - Jun 15, 12:25 UTCJun 15, 13:05 UTC40m
2026-06-15 FHBVK - Jun 15, 11:10 UTCJun 15, 11:49 UTC40m
2026-06-15 FHBVK - Jun 15, 08:04 UTCJun 15, 10:05 UTC2h 0m
2026-06-11 FHBVK - Jun 11, 12:45 UTCJun 11, 13:35 UTC50m
2026-06-11 FHBVK - Jun 11, 11:35 UTCJun 11, 11:45 UTC10m
2026-06-10 FHBVK - Jun 10, 13:20 UTCJun 10, 14:15 UTC55m
2026-06-10 FHBVK - Jun 10, 11:50 UTCJun 10, 12:30 UTC40m
2026-06-10 FHBVK - Jun 10, 10:20 UTCJun 10, 10:55 UTC35m
2026-06-08 FHBVK - Jun 8, 13:20 UTCJun 8, 14:15 UTC55m
2026-06-08 FHBVK - Jun 8, 11:10 UTCJun 8, 12:40 UTC1h 30m
2026-06-05 FMY86R1 - Jun 5, 08:10 UTCJun 5, 08:40 UTC30m
2026-06-05 FMY86R1 PUF → PUF Jun 5, 07:20 UTCJun 5, 07:35 UTC15m
2026-06-04 FMY86R1 - Jun 4, 19:55 UTCJun 4, 21:45 UTC1h 50m
2026-06-04 FMY86R1 - Jun 4, 14:10 UTCJun 4, 14:20 UTC10m
2026-06-03 FMY86R1 - Jun 3, 20:15 UTCJun 3, 21:25 UTC1h 10m
2026-06-03 FMY86R1 - Jun 3, 18:15 UTCJun 3, 19:35 UTC1h 20m
2026-06-03 FMY86R1 - Jun 3, 14:15 UTCJun 3, 17:35 UTC3h 20m
2026-06-03 FMY86R1 - Jun 3, 12:05 UTCJun 3, 13:25 UTC1h 20m
2026-06-03 FMY86R1 - Jun 3, 10:15 UTCJun 3, 10:35 UTC20m
2026-06-03 FMY86R1 - Jun 3, 08:15 UTCJun 3, 09:35 UTC1h 20m
2026-06-03 FMY86R1 - Jun 3, 06:20 UTCJun 3, 07:35 UTC1h 15m
2026-06-02 FMY86R1 - Jun 2, 17:30 UTCJun 2, 17:40 UTC10m
2026-06-02 FMY86R1 - Jun 2, 15:10 UTCJun 2, 16:50 UTC1h 40m
2026-06-02 FMY86R1 - Jun 2, 12:35 UTCJun 2, 14:25 UTC1h 50m
2026-06-02 FMY86R1 - Jun 2, 08:35 UTCJun 2, 10:00 UTC1h 25m
2026-06-02 FMY86R1 - Jun 2, 05:50 UTCJun 2, 06:10 UTC20m
2026-06-01 FMY86R1 - Jun 1, 13:15 UTCJun 1, 14:50 UTC1h 35m
2026-06-01 FMY86R1 - Jun 1, 11:00 UTCJun 1, 12:35 UTC1h 35m
2026-05-28 FHBVK - May 28, 08:00 UTCMay 28, 08:10 UTC10m
2026-05-27 FHBVK - May 27, 10:50 UTCMay 27, 12:20 UTC1h 30m
2026-05-27 FHBVK - May 27, 08:25 UTCMay 27, 09:55 UTC1h 30m
2026-05-27 FHBVK - May 27, 06:25 UTCMay 27, 07:55 UTC1h 30m
2026-05-26 FHBVK - May 26, 20:00 UTCMay 26, 21:44 UTC1h 45m
2026-05-26 FHBVK - May 26, 14:20 UTCMay 26, 14:30 UTC10m
2026-05-26 FMY8785 - May 26, 11:50 UTCMay 26, 13:19 UTC1h 30m
2026-05-26 FMY8785 - May 26, 10:39 UTCMay 26, 10:50 UTC10m
2026-05-26 FHBVK - May 26, 07:40 UTCMay 26, 08:19 UTC40m
2026-05-22 FHBVK - May 22, 09:05 UTCMay 22, 09:50 UTC45m
2026-05-22 FHBVK - May 22, 07:55 UTCMay 22, 08:20 UTC25m
2026-05-22 FHBVK - May 22, 07:00 UTCMay 22, 07:10 UTC10m

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

Mode-S 3986AA frequently asked

What is Mode-S code 3986AA?
3986AA is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HBVK.
Where is Mode-S 3986AA registered?
Mode-S code 3986AA is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3986AA broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3986AA, octal 16303252, decimal 3,770,026.
What flights does 3986AA operate?
Mode-S 3986AA has broadcast 6 distinct callsigns, including FHBVK, FMY86R1, FMY8785, FMY8793, FMY8792.