Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

39BE33

ICAO 24-bit transponder address · allocated to France

Hex
39BE33
Octal
16337063
Decimal
3,784,243
Country
FR
No current signal · last broadcast 12d ago
Flights observed
126
Distinct callsigns
20
Country
FR
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S 39BE33.

Country allocation

The ICAO 24-bit address 39BE33 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
ONI37L - 6 2026-07-16
ONI31L - 6 2026-07-16
ONI31J - 5 2026-07-04
ONI96L - 3 2026-07-16
ONI94L - 3 2026-07-13
ONI38P - 3 2026-05-19
ONI32J - 3 2026-06-13
ONI31P - 3 2026-07-11
ONI31K - 3 2026-07-22
ONI93K - 2 2026-07-22
ONI92P - 2 2026-07-06
ONI92M - 2 2026-07-20
ONI92J - 2 2026-07-08
ONI92I - 2 2026-06-16
ONI91L - 2 2026-06-22
ONI65P - 2 2026-05-06
ONI49J - 2 2026-06-05
ONI39L - 2 2026-07-13
ONI38N - 2 2026-06-08
ONI38L - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 ONI91M - Jul 24, 12:00 UTCJul 24, 12:25 UTC25m
2026-07-24 ONI90M - Jul 24, 10:35 UTCJul 24, 11:05 UTC30m
2026-07-22 ONI93K - Jul 22, 14:10 UTCJul 22, 15:20 UTC1h 10m
2026-07-22 ONI31K - Jul 22, 11:10 UTCJul 22, 11:35 UTC25m
2026-07-21 ONI37I - Jul 21, 17:10 UTCJul 21, 17:50 UTC40m
2026-07-21 ONI95I - Jul 21, 15:25 UTCJul 21, 16:10 UTC45m
2026-07-21 ONI34I - Jul 21, 13:30 UTCJul 21, 14:15 UTC45m
2026-07-20 ONI42M - Jul 20, 15:50 UTCJul 20, 17:40 UTC1h 50m
2026-07-20 ONI49M - Jul 20, 13:10 UTCJul 20, 15:00 UTC1h 50m
2026-07-20 ONI92M - Jul 20, 10:30 UTCJul 20, 11:15 UTC45m
2026-07-16 ONI93M - Jul 16, 15:45 UTCJul 16, 16:49 UTC1h 5m
2026-07-16 ONI96L - Jul 16, 14:29 UTCJul 16, 14:50 UTC20m
2026-07-16 ONI31L CAT → CAT Jul 16, 11:45 UTCJul 16, 12:30 UTC45m
2026-07-16 ONI37L CAT → CAT Jul 16, 10:15 UTCJul 16, 10:59 UTC45m
2026-07-16 ONI32L - Jul 16, 08:40 UTCJul 16, 09:15 UTC35m
2026-07-15 ONI37L - Jul 15, 18:10 UTCJul 15, 19:00 UTC50m
2026-07-15 ONI37L - Jul 15, 16:40 UTCJul 15, 17:10 UTC30m
2026-07-15 ONI38L CAT → CAT Jul 15, 11:45 UTCJul 15, 12:35 UTC50m
2026-07-15 ONI96L - Jul 15, 07:55 UTCJul 15, 09:00 UTC1h 5m
2026-07-14 ONI97O - Jul 14, 07:30 UTCJul 14, 08:15 UTC45m
2026-07-13 ONI31L CAT → CAT Jul 13, 17:10 UTCJul 13, 18:15 UTC1h 5m
2026-07-13 ONI39L CAT → CAT Jul 13, 12:10 UTCJul 13, 13:10 UTC1h 0m
2026-07-13 ONI94L - Jul 13, 07:45 UTCJul 13, 08:55 UTC1h 10m
2026-07-12 ONI31L CAT → CAT Jul 12, 17:15 UTCJul 12, 18:45 UTC1h 30m
2026-07-12 ONI36L CAT → CAT Jul 12, 10:55 UTCJul 12, 11:50 UTC55m
2026-07-11 ONI31P - Jul 11, 09:20 UTCJul 11, 10:05 UTC45m
2026-07-10 ONI92M CAT → CAT Jul 10, 09:00 UTCJul 10, 09:30 UTC30m
2026-07-09 ONI35P - Jul 9, 18:00 UTCJul 9, 18:45 UTC45m
2026-07-09 ONI39P - Jul 9, 15:55 UTCJul 9, 17:00 UTC1h 5m
2026-07-09 ONI31P CAT → CAT Jul 9, 13:35 UTCJul 9, 14:20 UTC45m
2026-07-09 ONI94P CAT → CAT Jul 9, 09:10 UTCJul 9, 09:45 UTC35m
2026-07-08 ONI96J CAT → CAT Jul 8, 15:55 UTCJul 8, 16:35 UTC40m
2026-07-08 ONI92J - Jul 8, 13:10 UTCJul 8, 14:05 UTC55m
2026-07-08 ONI02J - Jul 8, 11:00 UTCJul 8, 11:35 UTC35m
2026-07-08 ONI34J - Jul 8, 09:10 UTCJul 8, 09:45 UTC35m
2026-07-07 ONI95O CAT → CAT Jul 7, 11:00 UTCJul 7, 11:45 UTC45m
2026-07-07 ONI34O - Jul 7, 09:10 UTCJul 7, 09:50 UTC40m
2026-07-07 ONI96O - Jul 7, 07:25 UTCJul 7, 08:10 UTC45m
2026-07-06 ONI04P CAT → CAT Jul 6, 10:20 UTCJul 6, 10:50 UTC30m
2026-07-06 ONI92P CAT → CAT Jul 6, 09:10 UTCJul 6, 10:00 UTC50m
2026-07-05 ONI37L CAT → CAT Jul 5, 13:40 UTCJul 5, 14:20 UTC40m
2026-07-05 ONI34L CAT → CAT Jul 5, 09:40 UTCJul 5, 10:25 UTC45m
2026-07-05 ONI98L CAT → CAT Jul 5, 07:45 UTCJul 5, 08:20 UTC35m
2026-07-04 ONI31J - Jul 4, 15:55 UTCJul 4, 16:20 UTC25m
2026-07-04 ONI94J - Jul 4, 09:35 UTCJul 4, 10:25 UTC50m
2026-07-03 ONI01L - Jul 3, 07:55 UTCJul 3, 09:35 UTC1h 40m
2026-07-03 ONI31K - Jul 3, 06:30 UTCJul 3, 07:15 UTC45m
2026-06-30 ONI31L - Jun 30, 18:05 UTCJun 30, 19:55 UTC1h 50m
2026-06-30 ONI38J - Jun 30, 10:40 UTCJun 30, 11:30 UTC50m
2026-06-30 ONI38I - Jun 30, 07:30 UTCJun 30, 09:10 UTC1h 40m

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.

Mode-S 39BE33 frequently asked

What is Mode-S code 39BE33?
39BE33 is an ICAO 24-bit transponder address. Allocated to France.
Where is Mode-S 39BE33 registered?
Mode-S code 39BE33 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39BE33 broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39BE33, octal 16337063, decimal 3,784,243.
What flights does 39BE33 operate?
Mode-S 39BE33 has broadcast 20 distinct callsigns, including ONI37L, ONI31L, ONI31J, ONI96L, ONI94L.