Apparatus

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sensors Mode-S transponder

39514D

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GUKN · GROB G-120

Hex
39514D
Octal
16250515
Decimal
3,756,365
Country
FR
Tail
F-GUKN
Type
G120
No current signal · last broadcast 18h ago
Flights observed
73
Distinct callsigns
20
Country
FR
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 39514D.

Country allocation

The ICAO 24-bit address 39514D 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
MOLOCH67 - 9 2026-06-30
MOLOCH66 - 9 2026-07-17
MOLOCH75 - 7 2026-06-29
MOLOCH68 - 7 2026-07-07
MOLOCH65 - 6 2026-07-17
MOLOCH61 - 5 2026-07-13
MOLOCH77 - 4 2026-07-08
MOLOCH71 - 4 2026-07-13
METAL85 - 4 2026-06-17
MOLOCH85 - 3 2026-06-23
MOLOCH76 - 3 2026-07-16
MOLOCH99 - 2 2026-07-15
MOLOCH79 - 2 2026-07-09
FAF6520 - 2 2026-04-29
MOLOCH89 - 1 2026-04-29
MOLOCH88 - 1 2026-06-11
MOLOCH87 - 1 2026-05-26
MOLOCH86 - 1 2026-07-01
MOLOCH81 - 1 2026-05-29
MOLOCH78 - 1 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 MOLOCH65 - Jul 17, 12:40 UTCJul 17, 14:00 UTC1h 20m
2026-07-17 MOLOCH66 - Jul 17, 07:44 UTCJul 17, 08:25 UTC40m
2026-07-16 MOLOCH66 - Jul 16, 20:25 UTCJul 16, 21:50 UTC1h 25m
2026-07-16 MOLOCH76 - Jul 16, 13:05 UTCJul 16, 13:15 UTC10m
2026-07-15 MOLOCH99 - Jul 15, 21:15 UTCJul 15, 22:20 UTC1h 5m
2026-07-13 MOLOCH66 - Jul 13, 12:35 UTCJul 13, 13:50 UTC1h 15m
2026-07-13 MOLOCH71 - Jul 13, 10:15 UTCJul 13, 10:50 UTC35m
2026-07-13 MOLOCH61 - Jul 13, 07:40 UTCJul 13, 08:05 UTC25m
2026-07-10 MOLOCH61 - Jul 10, 07:00 UTCJul 10, 08:15 UTC1h 15m
2026-07-09 MOLOCH66 - Jul 9, 20:40 UTCJul 9, 21:20 UTC40m
2026-07-09 MOLOCH79 - Jul 9, 09:40 UTCJul 9, 10:25 UTC45m
2026-07-08 MOLOCH77 - Jul 8, 06:45 UTCJul 8, 07:55 UTC1h 10m
2026-07-07 MOLOCH68 - Jul 7, 22:00 UTCJul 7, 23:25 UTC1h 25m
2026-07-01 MOLOCH86 - Jul 1, 12:50 UTCJul 1, 13:35 UTC45m
2026-06-30 MOLOCH67 - Jun 30, 07:35 UTCJun 30, 08:10 UTC35m
2026-06-29 MOLOCH75 - Jun 29, 12:55 UTCJun 29, 13:19 UTC25m
2026-06-26 MOLOCH61 - Jun 26, 11:49 UTCJun 26, 12:44 UTC55m
2026-06-23 MOLOCH85 - Jun 23, 06:44 UTCJun 23, 08:25 UTC1h 40m
2026-06-22 MOLOCH75 - Jun 22, 06:49 UTCJun 22, 07:40 UTC50m
2026-06-17 METAL85 - Jun 17, 12:35 UTCJun 17, 13:50 UTC1h 15m
2026-06-17 MOLOCH85 - Jun 17, 10:35 UTCJun 17, 11:10 UTC35m
2026-06-17 MOLOCH67 ANG → ANG Jun 17, 07:55 UTCJun 17, 08:10 UTC15m
2026-06-16 MOLOCH67 - Jun 16, 21:55 UTCJun 16, 23:10 UTC1h 15m
2026-06-16 MOLOCH75 - Jun 16, 10:35 UTCJun 16, 11:10 UTC35m
2026-06-16 MOLOCH65 - Jun 16, 07:40 UTCJun 16, 08:39 UTC1h 0m
2026-06-15 MOLOCH67 - Jun 15, 12:39 UTCJun 15, 13:40 UTC1h 0m
2026-06-15 METAL85 - Jun 15, 10:05 UTCJun 15, 11:05 UTC1h 0m
2026-06-15 MOLOCH61 - Jun 15, 07:40 UTCJun 15, 08:35 UTC55m
2026-06-11 MOLOCH88 - Jun 11, 12:55 UTCJun 11, 13:55 UTC1h 0m
2026-06-10 METAL85 - Jun 10, 11:45 UTCJun 10, 12:05 UTC20m
2026-06-08 MOLOCH67 - Jun 8, 12:45 UTCJun 8, 13:40 UTC55m
2026-06-04 MOLOCH68 - Jun 4, 07:35 UTCJun 4, 09:05 UTC1h 30m
2026-06-03 MOLOCH66 - Jun 3, 13:00 UTCJun 3, 13:40 UTC40m
2026-06-03 MOLOCH71 - Jun 3, 10:15 UTCJun 3, 11:00 UTC45m
2026-06-02 MOLOCH65 - Jun 2, 21:45 UTCJun 2, 22:25 UTC40m
2026-06-02 MOLOCH67 - Jun 2, 12:55 UTCJun 2, 13:15 UTC20m
2026-06-02 MOLOCH71 - Jun 2, 10:40 UTCJun 2, 11:35 UTC55m
2026-06-01 MOLOCH78 - Jun 1, 12:25 UTCJun 1, 13:35 UTC1h 10m
2026-05-29 MOLOCH81 - May 29, 07:55 UTCMay 29, 08:35 UTC40m
2026-05-26 MOLOCH75 - May 26, 22:54 UTCMay 26, 23:14 UTC20m
2026-05-26 MOLOCH75 - May 26, 12:45 UTCMay 26, 14:09 UTC1h 25m
2026-05-26 MOLOCH87 - May 26, 10:14 UTCMay 26, 10:29 UTC15m
2026-05-22 MOLOCH61 - May 22, 12:30 UTCMay 22, 13:30 UTC1h 0m
2026-05-22 MOLOCH68 - May 22, 07:50 UTCMay 22, 09:10 UTC1h 20m
2026-05-20 MOLOCH77 - May 20, 13:00 UTCMay 20, 13:55 UTC55m
2026-05-20 MOLOCH77 - May 20, 10:10 UTCMay 20, 11:15 UTC1h 5m
2026-05-07 MOLOCH67 - May 7, 07:40 UTCMay 7, 09:05 UTC1h 25m
2026-05-06 MOLOCH67 - May 6, 19:50 UTCMay 6, 20:55 UTC1h 5m
2026-05-06 MOLOCH65 - May 6, 12:45 UTCMay 6, 14:10 UTC1h 25m
2026-05-05 MOLOCH65 - May 5, 21:15 UTCMay 5, 22:30 UTC1h 15m

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

Mode-S 39514D frequently asked

What is Mode-S code 39514D?
39514D is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GUKN.
Where is Mode-S 39514D registered?
Mode-S code 39514D is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39514D broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39514D, octal 16250515, decimal 3,756,365.
What flights does 39514D operate?
Mode-S 39514D has broadcast 20 distinct callsigns, including MOLOCH67, MOLOCH66, MOLOCH75, MOLOCH68, MOLOCH65.