Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3B77FF

ICAO 24-bit transponder address · allocated to France

Currently assigned to 105 · SOCATA TBM-700A/B/C

Hex
3B77FF
Octal
16673777
Decimal
3,897,343
Country
FR
Tail
105
Type
TBM7
No current signal · last broadcast 27d ago
Flights observed
102
Distinct callsigns
20
Country
FR
Last broadcast
27d ago

Last known position

Most recent position reported by Mode-S 3B77FF.

Country allocation

The ICAO 24-bit address 3B77FF 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
CTM3882 - 11 2026-05-21
CTM3890 - 7 2026-05-26
CTM3828 - 6 2026-04-30
CTM3893 - 5 2026-06-17
CTM3840 - 5 2026-04-14
CTM3823 - 5 2026-04-27
CTM1306 - 5 2026-06-16
CTM3891 - 4 2026-06-09
CTM3881 - 4 2026-06-05
CTM071 - 4 2026-06-17
CTM3897 - 3 2026-05-05
CTM3889 - 3 2026-06-15
CTM3847 - 3 2026-04-15
CTM1305 - 3 2026-05-07
CTM033 - 3 2026-04-15
CTM3894 - 2 2026-05-14
CTM3886 - 2 2026-06-12
CTM3880 - 2 2026-06-10
CTM3844 - 2 2026-04-16
CTM1308 - 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-17 CTM3893 - Jun 17, 17:20 UTCJun 17, 18:00 UTC40m
2026-06-17 CTM3893 LBG → BOD Jun 17, 15:00 UTCJun 17, 16:25 UTC1h 25m
2026-06-17 CTM3893 - Jun 17, 13:50 UTCJun 17, 14:05 UTC15m
2026-06-17 CTM071 - Jun 17, 10:50 UTCJun 17, 12:55 UTC2h 5m
2026-06-17 CTM071 - Jun 17, 08:05 UTCJun 17, 10:00 UTC1h 55m
2026-06-16 CTM1306 BOD → LDE Jun 16, 12:30 UTCJun 16, 13:15 UTC45m
2026-06-15 CTM3889 - Jun 15, 15:59 UTCJun 15, 17:04 UTC1h 5m
2026-06-15 CTM3889 - Jun 15, 08:15 UTCJun 15, 08:29 UTC15m
2026-06-15 CTM3889 BOD → LBG Jun 15, 05:50 UTCJun 15, 07:05 UTC1h 15m
2026-06-12 CTM3886 - Jun 12, 15:15 UTCJun 12, 17:40 UTC2h 25m
2026-06-12 CTM0071 - Jun 12, 08:50 UTCJun 12, 09:30 UTC40m
2026-06-12 CTM3886 BOD → VIY Jun 12, 06:45 UTCJun 12, 08:05 UTC1h 20m
2026-06-10 CTM3880 VIY → BOD Jun 10, 15:55 UTCJun 10, 17:10 UTC1h 15m
2026-06-10 CTM3880 BOD → VIY Jun 10, 10:25 UTCJun 10, 11:50 UTC1h 25m
2026-06-09 CTM3891 - Jun 9, 14:15 UTCJun 9, 15:50 UTC1h 35m
2026-06-09 CTM073 - Jun 9, 12:20 UTCJun 9, 13:40 UTC1h 20m
2026-06-09 CTM3891 - Jun 9, 08:15 UTCJun 9, 08:25 UTC10m
2026-06-09 CTM3891 - Jun 9, 06:10 UTCJun 9, 07:30 UTC1h 20m
2026-06-08 CTM3891 BOD → VIY Jun 8, 14:35 UTCJun 8, 15:50 UTC1h 15m
2026-06-08 CTM1306 - Jun 8, 09:40 UTCJun 8, 10:05 UTC25m
2026-06-08 CTM1306 - Jun 8, 08:55 UTCJun 8, 09:05 UTC10m
2026-06-05 CTM3881 - Jun 5, 13:55 UTCJun 5, 15:05 UTC1h 10m
2026-06-05 CTM3881 BOD → LYN Jun 5, 12:20 UTCJun 5, 13:25 UTC1h 5m
2026-06-05 CARAFON BOD → BOD Jun 5, 07:55 UTCJun 5, 09:35 UTC1h 40m
2026-06-03 CTM1309 - Jun 3, 13:20 UTCJun 3, 14:35 UTC1h 15m
2026-05-27 CTM071 - May 27, 07:10 UTCMay 27, 08:25 UTC1h 15m
2026-05-27 CTM071 BOD → VIY May 27, 05:14 UTCMay 27, 06:20 UTC1h 5m
2026-05-26 CTM3890 - May 26, 15:29 UTCMay 26, 16:45 UTC1h 15m
2026-05-26 CTM3890 - May 26, 06:10 UTCMay 26, 07:19 UTC1h 10m
2026-05-22 CTM1306 - May 22, 11:15 UTCMay 22, 12:45 UTC1h 30m
2026-05-21 CTM3882 - May 21, 15:50 UTCMay 21, 17:10 UTC1h 20m
2026-05-21 CTM3882 - May 21, 13:55 UTCMay 21, 15:00 UTC1h 5m
2026-05-21 CTM3882 - May 21, 06:30 UTCMay 21, 07:45 UTC1h 15m
2026-05-20 CTM3882 LYN → VIY May 20, 15:15 UTCMay 20, 16:25 UTC1h 10m
2026-05-20 CTM3882 - May 20, 13:55 UTCMay 20, 14:50 UTC55m
2026-05-20 CTM3882 - May 20, 11:35 UTCMay 20, 12:25 UTC50m
2026-05-20 CTM3882 - May 20, 08:25 UTCMay 20, 10:00 UTC1h 35m
2026-05-20 CTM3882 - May 20, 06:55 UTCMay 20, 07:10 UTC15m
2026-05-19 CTM1308 - May 19, 12:15 UTCMay 19, 12:40 UTC25m
2026-05-19 CTM1308 - May 19, 11:10 UTCMay 19, 11:30 UTC20m
2026-05-18 CTM1307 BOD → BOD May 18, 13:15 UTCMay 18, 14:45 UTC1h 30m
2026-05-18 CTM1306 BOD → BOD May 18, 07:45 UTCMay 18, 08:15 UTC30m
2026-05-14 CTM3894 - May 14, 06:30 UTCMay 14, 08:10 UTC1h 40m
2026-05-14 CTM3894 - May 14, 05:20 UTCMay 14, 06:20 UTC1h 0m
2026-05-12 CTM3890 - May 12, 14:40 UTCMay 12, 17:05 UTC2h 25m
2026-05-12 CTM3890 - May 12, 13:00 UTCMay 12, 13:51 UTC50m
2026-05-12 CTM3890 - May 12, 07:50 UTCMay 12, 08:40 UTC50m
2026-05-12 CTM3890 - May 12, 06:05 UTCMay 12, 07:00 UTC55m
2026-05-12 CTM3890 - May 12, 05:15 UTCMay 12, 05:45 UTC30m
2026-05-11 CTM3893 - May 11, 14:30 UTCMay 11, 15:00 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 105 page for operator, model, and routing details .

Mode-S 3B77FF frequently asked

What is Mode-S code 3B77FF?
3B77FF is an ICAO 24-bit transponder address. Allocated to France. Assigned to 105.
Where is Mode-S 3B77FF registered?
Mode-S code 3B77FF is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3B77FF broadcasting right now?
No active broadcast right now. Last signal was 27d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3B77FF, octal 16673777, decimal 3,897,343.
What flights does 3B77FF operate?
Mode-S 3B77FF has broadcast 20 distinct callsigns, including CTM3882, CTM3890, CTM3828, CTM3893, CTM3840.