Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3B77F2

ICAO 24-bit transponder address · allocated to France

Currently assigned to 33 · SOCATA TBM-700A/B/C

Hex
3B77F2
Octal
16673762
Decimal
3,897,330
Country
FR
Tail
33
Type
TBM7
No current signal · last broadcast Jul 24, 09:35 UTC
Flights observed
90
Distinct callsigns
17
Country
FR
Last broadcast
Jul 24, 09:35 UTC

Last known position

Most recent position reported by Mode-S 3B77F2.

Country allocation

The ICAO 24-bit address 3B77F2 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 17 distinct

Callsign Airline Flights Last seen
CTM1305 - 23 2026-07-21
CTM1306 - 9 2026-07-24
CTM3886 - 8 2026-07-02
CTM3883 - 7 2026-04-23
CTM3880 - 7 2026-07-20
CTM1307 - 7 2026-07-24
CTM071 - 7 2026-06-18
CTM3893 - 6 2026-04-29
CTM3892 - 4 2026-04-28
CTM3897 - 2 2026-06-07
CTM3894 - 2 2026-04-30
CTM3891 - 2 2026-06-15
CTM3881 - 2 2026-06-25
CTM1308 - 1 2026-06-18
CTM0071 - 1 2026-04-21
CARAFON - 1 2026-06-10
CARAF16 - 1 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CTM1307 - Jul 24, 09:10 UTCJul 24, 09:35 UTC25m
2026-07-24 CTM1306 - Jul 24, 07:50 UTCJul 24, 08:20 UTC30m
2026-07-21 CTM1305 - Jul 21, 07:25 UTCJul 21, 09:30 UTC2h 5m
2026-07-20 CTM3880 - Jul 20, 15:15 UTCJul 20, 15:30 UTC15m
2026-07-20 CTM3880 - Jul 20, 13:05 UTCJul 20, 14:25 UTC1h 20m
2026-07-20 CTM3880 LYN → CFE Jul 20, 12:00 UTCJul 20, 12:30 UTC30m
2026-07-20 CTM3880 BOD → LYN Jul 20, 10:10 UTCJul 20, 11:15 UTC1h 5m
2026-07-17 CTM1305 BOD → BOD Jul 17, 07:44 UTCJul 17, 09:10 UTC1h 25m
2026-07-15 CTM1307 LDE → BOD Jul 15, 11:35 UTCJul 15, 13:35 UTC2h 0m
2026-07-15 CTM1307 - Jul 15, 08:45 UTCJul 15, 09:25 UTC40m
2026-07-10 CTM1305 - Jul 10, 12:25 UTCJul 10, 13:40 UTC1h 15m
2026-07-10 CTM1305 - Jul 10, 08:35 UTCJul 10, 10:20 UTC1h 45m
2026-07-09 CTM1305 KRS → AMS Jul 9, 13:45 UTCJul 9, 15:25 UTC1h 40m
2026-07-09 CTM1305 - Jul 9, 11:20 UTCJul 9, 12:30 UTC1h 10m
2026-07-09 CTM1305 - Jul 9, 07:45 UTCJul 9, 09:25 UTC1h 40m
2026-07-08 CTM1305 - Jul 8, 14:10 UTCJul 8, 14:20 UTC10m
2026-07-08 CTM1305 - Jul 8, 10:25 UTCJul 8, 11:55 UTC1h 30m
2026-07-08 CTM1305 BOD → CWL Jul 8, 07:20 UTCJul 8, 09:05 UTC1h 45m
2026-07-03 CTM1305 - Jul 3, 09:30 UTCJul 3, 09:45 UTC15m
2026-07-03 CTM1305 - Jul 3, 08:15 UTCJul 3, 08:35 UTC20m
2026-07-02 CTM3886 - Jul 2, 18:00 UTCJul 2, 19:05 UTC1h 5m
2026-07-02 CTM3886 - Jul 2, 16:15 UTCJul 2, 17:25 UTC1h 10m
2026-07-02 CTM3886 - Jul 2, 06:15 UTCJul 2, 07:15 UTC1h 0m
2026-07-01 CTM3886 - Jul 1, 14:50 UTCJul 1, 15:50 UTC1h 0m
2026-07-01 CARAF16 - Jul 1, 12:30 UTCJul 1, 13:45 UTC1h 15m
2026-07-01 CTM3886 - Jul 1, 10:10 UTCJul 1, 11:35 UTC1h 25m
2026-06-30 CTM1305 - Jun 30, 09:25 UTCJun 30, 10:10 UTC45m
2026-06-30 CTM1305 BOD → DCM Jun 30, 07:45 UTCJun 30, 08:35 UTC50m
2026-06-29 CTM1307 - Jun 29, 12:09 UTCJun 29, 12:45 UTC35m
2026-06-29 CTM1307 - Jun 29, 07:59 UTCJun 29, 08:09 UTC10m
2026-06-25 CTM3881 - Jun 25, 12:15 UTCJun 25, 13:05 UTC50m
2026-06-25 CTM3881 BOD → ANE Jun 25, 04:29 UTCJun 25, 06:30 UTC2h 0m
2026-06-23 CTM1306 BOD → BOD Jun 23, 07:19 UTCJun 23, 08:54 UTC1h 35m
2026-06-22 CTM1305 - Jun 22, 07:25 UTCJun 22, 09:10 UTC1h 45m
2026-06-18 CTM1306 BOD → BOD Jun 18, 13:10 UTCJun 18, 14:50 UTC1h 40m
2026-06-18 CTM071 - Jun 18, 08:40 UTCJun 18, 09:45 UTC1h 5m
2026-06-18 CTM1308 BOD → LDE Jun 18, 06:55 UTCJun 18, 08:20 UTC1h 25m
2026-06-15 CTM3891 - Jun 15, 12:10 UTCJun 15, 13:20 UTC1h 10m
2026-06-15 CTM3891 - Jun 15, 05:04 UTCJun 15, 06:20 UTC1h 15m
2026-06-10 CARAFON BOD → BOD Jun 10, 10:15 UTCJun 10, 11:35 UTC1h 20m
2026-06-08 CTM1306 - Jun 8, 13:15 UTCJun 8, 14:25 UTC1h 10m
2026-06-08 CTM1306 - Jun 8, 12:00 UTCJun 8, 12:25 UTC25m
2026-06-07 CTM3897 - Jun 7, 11:30 UTCJun 7, 13:00 UTC1h 30m
2026-06-07 CTM3897 - Jun 7, 04:40 UTCJun 7, 06:00 UTC1h 20m
2026-05-31 CTM1307 - May 31, 18:10 UTCMay 31, 18:25 UTC15m
2026-05-29 CTM1307 - May 29, 12:45 UTCMay 29, 13:35 UTC50m
2026-05-27 CTM1306 - May 27, 13:30 UTCMay 27, 13:50 UTC20m
2026-05-27 CTM1306 - May 27, 11:45 UTCMay 27, 12:10 UTC25m
2026-05-22 CTM3886 BRN → BOD May 22, 15:00 UTCMay 22, 18:05 UTC3h 5m
2026-05-21 CTM3886 - May 21, 12:50 UTCMay 21, 13:55 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.

Prefer a tail-number view? See the 33 page for operator, model, and routing details .

Mode-S 3B77F2 frequently asked

What is Mode-S code 3B77F2?
3B77F2 is an ICAO 24-bit transponder address. Allocated to France. Assigned to 33.
Where is Mode-S 3B77F2 registered?
Mode-S code 3B77F2 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3B77F2 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 09:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3B77F2, octal 16673762, decimal 3,897,330.
What flights does 3B77F2 operate?
Mode-S 3B77F2 has broadcast 17 distinct callsigns, including CTM1305, CTM1306, CTM3886, CTM3883, CTM3880.