Apparatus

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sensors Mode-S transponder

3B77F5

ICAO 24-bit transponder address · allocated to France

Currently assigned to 77 · SOCATA TBM-700A/B/C

Hex
3B77F5
Octal
16673765
Decimal
3,897,333
Country
FR
Tail
77
Type
TBM7
No current signal · last broadcast 5d ago
Flights observed
67
Distinct callsigns
20
Country
FR
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 3B77F5.

Country allocation

The ICAO 24-bit address 3B77F5 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
CTM004 - 11 2026-07-17
CTM1293 - 8 2026-07-24
CTM3851 - 7 2026-07-13
CTM3832 - 4 2026-07-08
CTM3820 - 4 2026-07-03
CTM3842 - 3 2026-06-12
CTM3841 - 3 2026-07-07
CTM1291 - 3 2026-06-19
CTM1289 - 3 2026-07-09
CTM031 - 3 2026-07-21
CTM3813 - 2 2026-07-21
CTM3812 - 2 2026-06-30
CTM1296 - 2 2026-07-06
CTM1292 - 2 2026-06-24
CTM1287 - 2 2026-07-15
CTM1286 - 2 2026-06-16
CTM033 - 2 2026-07-08
CTM032 - 2 2026-07-02
CTM3850 - 1 2026-06-18
CTM3846 - 1 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CTM1293 - Jul 24, 11:55 UTCJul 24, 14:05 UTC2h 10m
2026-07-24 CTM1293 - Jul 24, 09:15 UTCJul 24, 11:15 UTC2h 0m
2026-07-24 CTM1293 - Jul 24, 06:55 UTCJul 24, 08:25 UTC1h 30m
2026-07-23 CTM1293 - Jul 23, 13:30 UTCJul 23, 14:55 UTC1h 25m
2026-07-23 CTM1293 - Jul 23, 10:25 UTCJul 23, 12:15 UTC1h 50m
2026-07-23 CTM1293 - Jul 23, 07:15 UTCJul 23, 09:20 UTC2h 5m
2026-07-22 CTM1293 - Jul 22, 13:00 UTCJul 22, 14:30 UTC1h 30m
2026-07-22 CTM1293 - Jul 22, 11:10 UTCJul 22, 11:50 UTC40m
2026-07-21 CTM3813 - Jul 21, 10:10 UTCJul 21, 11:15 UTC1h 5m
2026-07-21 CTM3813 - Jul 21, 08:30 UTCJul 21, 09:30 UTC1h 0m
2026-07-21 CTM031 - Jul 21, 05:55 UTCJul 21, 07:30 UTC1h 35m
2026-07-20 CTM031 - Jul 20, 08:50 UTCJul 20, 10:00 UTC1h 10m
2026-07-17 CTM004 - Jul 17, 15:10 UTCJul 17, 16:10 UTC1h 0m
2026-07-17 CTM004 - Jul 17, 12:55 UTCJul 17, 13:05 UTC10m
2026-07-16 CTM004 VIY → CGN Jul 16, 19:20 UTCJul 16, 20:29 UTC1h 10m
2026-07-15 CTM1287 BYF → VIY Jul 15, 11:55 UTCJul 15, 12:55 UTC1h 0m
2026-07-15 CTM1287 - Jul 15, 08:00 UTCJul 15, 09:55 UTC1h 55m
2026-07-13 CTM3851 CFE → VIY Jul 13, 08:25 UTCJul 13, 09:15 UTC50m
2026-07-13 CTM3851 - Jul 13, 07:15 UTCJul 13, 08:05 UTC50m
2026-07-13 CTM3851 - Jul 13, 06:20 UTCJul 13, 06:45 UTC25m
2026-07-10 CTM004 - Jul 10, 12:20 UTCJul 10, 13:15 UTC55m
2026-07-10 CTM004 - Jul 10, 11:25 UTCJul 10, 11:45 UTC20m
2026-07-10 CTM004 - Jul 10, 09:10 UTCJul 10, 09:30 UTC20m
2026-07-10 CTM004 - Jul 10, 07:15 UTCJul 10, 08:00 UTC45m
2026-07-09 CTM1289 - Jul 9, 12:30 UTCJul 9, 14:30 UTC2h 0m
2026-07-09 CTM1289 - Jul 9, 09:45 UTCJul 9, 10:00 UTC15m
2026-07-09 CTM1289 - Jul 9, 07:45 UTCJul 9, 09:35 UTC1h 50m
2026-07-08 CTM033 - Jul 8, 12:30 UTCJul 8, 13:25 UTC55m
2026-07-08 CTM3832 - Jul 8, 10:35 UTCJul 8, 11:35 UTC1h 0m
2026-07-08 CTM3832 - Jul 8, 08:35 UTCJul 8, 09:20 UTC45m
2026-07-08 CTM3832 - Jul 8, 07:15 UTCJul 8, 07:40 UTC25m
2026-07-08 CTM3832 - Jul 8, 06:15 UTCJul 8, 06:35 UTC20m
2026-07-07 CTM3841 - Jul 7, 16:20 UTCJul 7, 17:45 UTC1h 25m
2026-07-07 CTM3841 - Jul 7, 08:55 UTCJul 7, 10:00 UTC1h 5m
2026-07-07 CTM3841 TNF → TLS Jul 7, 06:15 UTCJul 7, 07:35 UTC1h 20m
2026-07-06 CTM1296 - Jul 6, 11:15 UTCJul 6, 14:05 UTC2h 50m
2026-07-06 CTM1296 - Jul 6, 07:50 UTCJul 6, 08:15 UTC25m
2026-07-03 CTM3820 - Jul 3, 12:15 UTCJul 3, 12:25 UTC10m
2026-07-03 CTM3820 - Jul 3, 11:10 UTCJul 3, 11:20 UTC10m
2026-07-02 CTM032 - Jul 2, 16:05 UTCJul 2, 17:00 UTC55m
2026-07-02 CTM3820 LYN → VIY Jul 2, 07:15 UTCJul 2, 08:20 UTC1h 5m
2026-07-02 CTM3820 - Jul 2, 05:40 UTCJul 2, 06:41 UTC1h 1m
2026-06-30 CTM3812 - Jun 30, 18:40 UTCJun 30, 19:35 UTC55m
2026-06-30 CTM3812 - Jun 30, 11:15 UTCJun 30, 12:25 UTC1h 10m
2026-06-24 CTM1292 VIY → VIY Jun 24, 11:05 UTCJun 24, 13:54 UTC2h 50m
2026-06-22 CTM004 BRU → VIY Jun 22, 15:24 UTCJun 22, 16:24 UTC1h 0m
2026-06-22 CTM004 - Jun 22, 06:49 UTCJun 22, 07:40 UTC50m
2026-06-19 CTM1291 - Jun 19, 11:59 UTCJun 19, 12:09 UTC10m
2026-06-19 CTM1291 - Jun 19, 08:34 UTCJun 19, 08:44 UTC10m
2026-06-19 CTM1291 - Jun 19, 07:04 UTCJun 19, 07:34 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 77 page for operator, model, and routing details .

Mode-S 3B77F5 frequently asked

What is Mode-S code 3B77F5?
3B77F5 is an ICAO 24-bit transponder address. Allocated to France. Assigned to 77.
Where is Mode-S 3B77F5 registered?
Mode-S code 3B77F5 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3B77F5 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3B77F5, octal 16673765, decimal 3,897,333.
What flights does 3B77F5 operate?
Mode-S 3B77F5 has broadcast 20 distinct callsigns, including CTM004, CTM1293, CTM3851, CTM3832, CTM3820.