Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3B77E6

ICAO 24-bit transponder address · allocated to France

Currently assigned to 5847 · Lockheed Martin C-130J-30 Hercules

Hex
3B77E6
Octal
16673746
Decimal
3,897,318
Country
FR
Tail
5847
Type
C30J
No current signal · last broadcast 9h ago
Flights observed
62
Distinct callsigns
13
Country
FR
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 3B77E6.

Country allocation

The ICAO 24-bit address 3B77E6 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 13 distinct

Callsign Airline Flights Last seen
CTM1484 - 23 2026-07-03
CUJAS21 - 10 2026-07-14
CTM2088 - 6 2026-06-21
CTM2079 - 5 2026-07-16
CTM2085 - 4 2026-06-16
CUJAS22 - 3 2026-07-06
CTM2078 - 3 2026-06-01
CTM2086 - 2 2026-06-18
CTM2077 - 2 2026-06-19
RHINO69 - 1 2026-06-23
RHINO26 - 1 2026-07-15
LAC5847 - 1 2026-05-20
CTM1219 - 1 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 CTM2079 - Jul 16, 09:25 UTCJul 16, 14:55 UTC5h 30m
2026-07-16 CTM2079 - Jul 16, 07:05 UTCJul 16, 07:30 UTC25m
2026-07-15 RHINO26 - Jul 15, 11:15 UTCJul 15, 11:30 UTC15m
2026-07-15 CTM2079 - Jul 15, 08:00 UTCJul 15, 08:25 UTC25m
2026-07-14 CUJAS21 - Jul 14, 07:30 UTCJul 14, 09:50 UTC2h 20m
2026-07-09 CUJAS21 EVX → EVX Jul 9, 12:10 UTCJul 9, 13:30 UTC1h 20m
2026-07-06 CUJAS22 EVX → EVX Jul 6, 15:25 UTCJul 6, 16:15 UTC50m
2026-07-06 CUJAS22 - Jul 6, 11:05 UTCJul 6, 13:20 UTC2h 15m
2026-07-06 CUJAS22 - Jul 6, 06:30 UTCJul 6, 07:30 UTC1h 0m
2026-07-03 CTM1484 CLY → EVX Jul 3, 07:45 UTCJul 3, 10:25 UTC2h 40m
2026-06-30 CTM1484 - Jun 30, 16:45 UTCJun 30, 17:00 UTC15m
2026-06-30 CTM1484 - Jun 30, 12:55 UTCJun 30, 13:20 UTC25m
2026-06-30 CTM1484 - Jun 30, 10:40 UTCJun 30, 10:55 UTC15m
2026-06-30 CTM1484 - Jun 30, 07:00 UTCJun 30, 07:20 UTC20m
2026-06-29 CTM1484 CLY → CLY Jun 29, 12:29 UTCJun 29, 12:55 UTC25m
2026-06-29 CTM1484 - Jun 29, 07:15 UTCJun 29, 09:05 UTC1h 50m
2026-06-25 CUJAS21 - Jun 25, 09:14 UTCJun 25, 09:50 UTC35m
2026-06-25 CUJAS21 - Jun 25, 07:19 UTCJun 25, 07:59 UTC40m
2026-06-25 CUJAS21 - Jun 25, 06:40 UTCJun 25, 07:05 UTC25m
2026-06-24 CUJAS21 - Jun 24, 11:24 UTCJun 24, 11:39 UTC15m
2026-06-24 CUJAS21 - Jun 24, 09:15 UTCJun 24, 09:49 UTC35m
2026-06-24 CUJAS21 - Jun 24, 07:20 UTCJun 24, 08:09 UTC50m
2026-06-24 CUJAS21 - Jun 24, 06:35 UTCJun 24, 07:05 UTC30m
2026-06-23 CUJAS21 - Jun 23, 13:59 UTCJun 23, 14:15 UTC15m
2026-06-23 RHINO69 EVX → EVX Jun 23, 06:34 UTCJun 23, 07:35 UTC1h 0m
2026-06-23 CTM1219 - Jun 23, 06:09 UTCJun 23, 06:19 UTC10m
2026-06-21 CTM2088 - Jun 21, 11:59 UTCJun 21, 14:50 UTC2h 50m
2026-06-21 CTM2088 - Jun 21, 07:20 UTCJun 21, 10:09 UTC2h 50m
2026-06-19 CTM2077 - Jun 19, 10:35 UTCJun 19, 12:44 UTC2h 10m
2026-06-19 CTM2077 - Jun 19, 07:59 UTCJun 19, 09:49 UTC1h 50m
2026-06-18 CTM2086 - Jun 18, 13:40 UTCJun 18, 15:45 UTC2h 5m
2026-06-18 CTM2086 - Jun 18, 11:00 UTCJun 18, 13:05 UTC2h 5m
2026-06-17 CTM2079 - Jun 17, 18:25 UTCJun 17, 19:35 UTC1h 10m
2026-06-17 CTM2079 - Jun 17, 15:40 UTCJun 17, 17:45 UTC2h 5m
2026-06-16 CTM2085 - Jun 16, 15:24 UTCJun 16, 19:45 UTC4h 20m
2026-06-16 CTM2085 - Jun 16, 12:35 UTCJun 16, 13:19 UTC45m
2026-06-15 CTM2085 - Jun 15, 13:20 UTCJun 15, 14:00 UTC40m
2026-06-15 CTM2085 - Jun 15, 08:00 UTCJun 15, 11:19 UTC3h 20m
2026-06-14 CTM2088 - Jun 14, 17:30 UTCJun 14, 19:40 UTC2h 10m
2026-06-14 CTM2088 - Jun 14, 15:00 UTCJun 14, 15:55 UTC55m
2026-06-14 CTM2088 - Jun 14, 12:35 UTCJun 14, 14:05 UTC1h 30m
2026-06-12 CTM1484 - Jun 12, 12:30 UTCJun 12, 13:30 UTC1h 0m
2026-06-11 CTM1484 BOD → BOD Jun 11, 21:25 UTCJun 11, 22:40 UTC1h 15m
2026-06-10 CTM1484 - Jun 10, 16:35 UTCJun 10, 16:55 UTC20m
2026-06-10 CTM1484 BOD → BOD Jun 10, 15:40 UTCJun 10, 16:15 UTC35m
2026-06-10 CTM1484 BOD → BOD Jun 10, 14:30 UTCJun 10, 15:20 UTC50m
2026-06-10 CTM1484 - Jun 10, 12:15 UTCJun 10, 12:55 UTC40m
2026-06-10 CTM1484 - Jun 10, 06:50 UTCJun 10, 07:00 UTC10m
2026-06-09 CTM1484 - Jun 9, 13:25 UTCJun 9, 14:05 UTC40m
2026-06-09 CTM1484 - Jun 9, 12:40 UTCJun 9, 12:50 UTC10m

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 5847 page for operator, model, and routing details .

Mode-S 3B77E6 frequently asked

What is Mode-S code 3B77E6?
3B77E6 is an ICAO 24-bit transponder address. Allocated to France. Assigned to 5847.
Where is Mode-S 3B77E6 registered?
Mode-S code 3B77E6 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3B77E6 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3B77E6, octal 16673746, decimal 3,897,318.
What flights does 3B77E6 operate?
Mode-S 3B77E6 has broadcast 13 distinct callsigns, including CTM1484, CUJAS21, CTM2088, CTM2079, CTM2085.