Apparatus

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sensors Mode-S transponder

39D517

ICAO 24-bit transponder address · allocated to France

Hex
39D517
Octal
16352427
Decimal
3,790,103
Country
FR
No current signal · last broadcast 4d ago
Flights observed
69
Distinct callsigns
1
Country
FR
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 39D517.

Country allocation

The ICAO 24-bit address 39D517 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 1 distinct

Callsign Airline Flights Last seen
FHVIX - 69 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 FHVIX - Jul 20, 15:40 UTCJul 20, 16:40 UTC1h 0m
2026-07-19 FHVIX - Jul 19, 08:40 UTCJul 19, 09:30 UTC50m
2026-07-16 FHVIX - Jul 16, 15:05 UTCJul 16, 15:49 UTC45m
2026-07-16 FHVIX - Jul 16, 12:55 UTCJul 16, 14:15 UTC1h 20m
2026-07-16 FHVIX - Jul 16, 09:45 UTCJul 16, 11:15 UTC1h 30m
2026-07-13 FHVIX - Jul 13, 15:20 UTCJul 13, 16:35 UTC1h 15m
2026-07-13 FHVIX - Jul 13, 12:05 UTCJul 13, 13:15 UTC1h 10m
2026-07-12 FHVIX NCE → LBG Jul 12, 20:01 UTCJul 12, 21:10 UTC1h 10m
2026-07-12 FHVIX ZRH → NCE Jul 12, 17:15 UTCJul 12, 18:10 UTC55m
2026-07-12 FHVIX LBG → ZRH Jul 12, 15:25 UTCJul 12, 16:15 UTC50m
2026-07-10 FHVIX - Jul 10, 11:20 UTCJul 10, 12:30 UTC1h 10m
2026-07-10 FHVIX - Jul 10, 08:15 UTCJul 10, 09:25 UTC1h 10m
2026-07-07 FHVIX - Jul 7, 17:05 UTCJul 7, 17:55 UTC50m
2026-07-07 FHVIX - Jul 7, 15:10 UTCJul 7, 15:55 UTC45m
2026-07-07 FHVIX - Jul 7, 07:05 UTCJul 7, 07:45 UTC40m
2026-07-06 FHVIX - Jul 6, 08:00 UTCJul 6, 08:50 UTC50m
2026-07-06 FHVIX LBG → LTT Jul 6, 05:00 UTCJul 6, 06:05 UTC1h 5m
2026-07-05 FHVIX - Jul 5, 09:05 UTCJul 5, 09:40 UTC35m
2026-07-02 FHVIX - Jul 2, 10:35 UTCJul 2, 11:40 UTC1h 5m
2026-07-02 FHVIX - Jul 2, 07:30 UTCJul 2, 08:20 UTC50m
2026-06-25 FHVIX MUC → LBG Jun 25, 07:09 UTCJun 25, 08:24 UTC1h 15m
2026-06-24 FHVIX - Jun 24, 13:40 UTCJun 24, 14:45 UTC1h 5m
2026-06-23 FHVIX - Jun 23, 09:14 UTCJun 23, 10:29 UTC1h 15m
2026-06-23 FHVIX - Jun 23, 07:09 UTCJun 23, 08:09 UTC1h 0m
2026-06-23 FHVIX - Jun 23, 05:09 UTCJun 23, 05:59 UTC50m
2026-06-20 FHVIX - Jun 20, 12:34 UTCJun 20, 13:19 UTC45m
2026-06-20 FHVIX - Jun 20, 10:29 UTCJun 20, 10:49 UTC20m
2026-06-20 FHVIX - Jun 20, 08:14 UTCJun 20, 09:39 UTC1h 25m
2026-06-18 FHVIX - Jun 18, 08:15 UTCJun 18, 09:50 UTC1h 35m
2026-06-16 FHVIX BOD → LBG Jun 16, 12:00 UTCJun 16, 12:50 UTC50m
2026-06-16 FHVIX - Jun 16, 05:59 UTCJun 16, 06:50 UTC50m
2026-06-11 FHVIX VNO → LBG Jun 11, 12:50 UTCJun 11, 15:00 UTC2h 10m
2026-06-11 FHVIX - Jun 11, 10:05 UTCJun 11, 11:45 UTC1h 40m
2026-06-11 FHVIX VNO → AMS Jun 11, 05:45 UTCJun 11, 07:40 UTC1h 55m
2026-06-10 FHVIX - Jun 10, 12:40 UTCJun 10, 14:40 UTC2h 0m
2026-06-09 FHVIX - Jun 9, 09:45 UTCJun 9, 10:10 UTC25m
2026-06-09 FHVIX - Jun 9, 07:40 UTCJun 9, 08:00 UTC20m
2026-06-08 FHVIX - Jun 8, 10:45 UTCJun 8, 11:10 UTC25m
2026-06-08 FHVIX - Jun 8, 10:00 UTCJun 8, 10:10 UTC10m
2026-06-08 FHVIX - Jun 8, 07:40 UTCJun 8, 08:00 UTC20m
2026-06-07 FHVIX GDN → LBG Jun 7, 17:35 UTCJun 7, 19:25 UTC1h 50m
2026-06-07 FHVIX - Jun 7, 15:15 UTCJun 7, 16:55 UTC1h 40m
2026-06-07 FHVIX - Jun 7, 12:50 UTCJun 7, 14:00 UTC1h 10m
2026-06-06 FHVIX - Jun 6, 11:00 UTCJun 6, 11:49 UTC50m
2026-06-06 FHVIX - Jun 6, 09:09 UTCJun 6, 10:14 UTC1h 5m
2026-06-06 FHVIX LBG → FAB Jun 6, 07:05 UTCJun 6, 07:50 UTC45m
2026-06-03 FHVIX - Jun 3, 10:30 UTCJun 3, 11:50 UTC1h 20m
2026-06-03 FHVIX - Jun 3, 07:20 UTCJun 3, 09:10 UTC1h 50m
2026-06-02 FHVIX - Jun 2, 15:55 UTCJun 2, 17:20 UTC1h 25m
2026-05-27 FHVIX - May 27, 11:40 UTCMay 27, 12:45 UTC1h 5m

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.

Mode-S 39D517 frequently asked

What is Mode-S code 39D517?
39D517 is an ICAO 24-bit transponder address. Allocated to France.
Where is Mode-S 39D517 registered?
Mode-S code 39D517 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D517 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D517, octal 16352427, decimal 3,790,103.
What flights does 39D517 operate?
Mode-S 39D517 has broadcast 1 distinct callsign, including FHVIX.