Apparatus

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sensors Mode-S transponder

3B7B39

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-ZBMM · DE HAVILLAND DHC-8-400 Dash 8

Hex
3B7B39
Octal
16675471
Decimal
3,898,169
Country
FR
Tail
F-ZBMM
Type
DH8D
No current signal · last broadcast Jul 26, 18:45 UTC
Flights observed
162
Distinct callsigns
1
Country
FR
Last broadcast
Jul 26, 18:45 UTC

Last known position

Most recent position reported by Mode-S 3B7B39.

Country allocation

The ICAO 24-bit address 3B7B39 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 1 distinct

Callsign Airline Flights Last seen
MILAN80 - 157 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 MILAN80 - Jul 26, 18:25 UTCJul 26, 18:45 UTC20m
2026-07-26 MILAN80 - Jul 26, 15:55 UTCJul 26, 17:20 UTC1h 25m
2026-07-26 MILAN80 - Jul 26, 12:05 UTCJul 26, 12:45 UTC40m
2026-07-25 MILAN80 BOD → FNI Jul 25, 17:30 UTCJul 25, 18:40 UTC1h 10m
2026-07-25 MILAN80 BOD → BOD Jul 25, 16:45 UTCJul 25, 17:15 UTC30m
2026-07-25 MILAN80 - Jul 25, 15:45 UTCJul 25, 16:25 UTC40m
2026-07-25 MILAN80 - Jul 25, 13:30 UTCJul 25, 13:50 UTC20m
2026-07-25 MILAN80 - Jul 25, 12:55 UTCJul 25, 13:05 UTC10m
2026-07-25 MILAN80 BOD → BOD Jul 25, 12:20 UTCJul 25, 12:35 UTC15m
2026-07-25 MILAN80 BOD → BOD Jul 25, 11:50 UTCJul 25, 12:05 UTC15m
2026-07-25 MILAN80 - Jul 25, 11:15 UTCJul 25, 11:30 UTC15m
2026-07-25 MILAN80 - Jul 25, 10:45 UTCJul 25, 11:00 UTC15m
2026-07-25 MILAN80 - Jul 25, 10:15 UTCJul 25, 10:30 UTC15m
2026-07-25 MILAN80 - Jul 25, 09:50 UTCJul 25, 09:55 UTC5m
2026-07-24 MILAN80 - Jul 24, 16:30 UTCJul 24, 16:50 UTC20m
2026-07-24 MILAN80 - Jul 24, 14:30 UTCJul 24, 16:10 UTC1h 40m
2026-07-24 MILAN80 BOD → BOD Jul 24, 10:10 UTCJul 24, 10:30 UTC20m
2026-07-24 MILAN80 - Jul 24, 09:40 UTCJul 24, 09:55 UTC15m
2026-07-24 MILAN80 - Jul 24, 09:10 UTCJul 24, 09:25 UTC15m
2026-07-24 MILAN80 - Jul 24, 08:35 UTCJul 24, 08:45 UTC10m
2026-07-24 MILAN80 - Jul 24, 07:10 UTCJul 24, 08:15 UTC1h 5m
2026-07-23 MILAN80 - Jul 23, 18:40 UTCJul 23, 19:10 UTC30m
2026-07-23 MILAN80 - Jul 23, 17:40 UTCJul 23, 18:10 UTC30m
2026-07-23 MILAN80 - Jul 23, 17:10 UTCJul 23, 17:30 UTC20m
2026-07-23 MILAN80 - Jul 23, 15:20 UTCJul 23, 17:00 UTC1h 40m
2026-07-23 MILAN80 - Jul 23, 11:05 UTCJul 23, 13:30 UTC2h 25m
2026-07-22 MILAN80 - Jul 22, 18:45 UTCJul 22, 19:40 UTC55m
2026-07-22 MILAN80 - Jul 22, 18:10 UTCJul 22, 18:20 UTC10m
2026-07-22 MILAN80 - Jul 22, 17:30 UTCJul 22, 17:50 UTC20m
2026-07-22 MILAN80 - Jul 22, 15:10 UTCJul 22, 16:45 UTC1h 35m
2026-07-22 MILAN80 - Jul 22, 14:00 UTCJul 22, 14:55 UTC55m
2026-07-21 MILAN80 - Jul 21, 18:50 UTCJul 21, 19:20 UTC30m
2026-07-21 MILAN80 - Jul 21, 15:30 UTCJul 21, 18:10 UTC2h 40m
2026-07-21 MILAN80 - Jul 21, 11:00 UTCJul 21, 13:35 UTC2h 35m
2026-07-20 MILAN80 - Jul 20, 16:00 UTCJul 20, 18:50 UTC2h 50m
2026-07-20 MILAN80 FNI → FNI Jul 20, 11:35 UTCJul 20, 14:15 UTC2h 40m
2026-07-19 MILAN80 - Jul 19, 18:40 UTCJul 19, 19:15 UTC35m
2026-07-19 MILAN80 - Jul 19, 15:15 UTCJul 19, 17:50 UTC2h 35m
2026-07-17 MILAN80 - Jul 17, 15:10 UTCJul 17, 19:00 UTC3h 50m
2026-07-16 MILAN80 - Jul 16, 15:05 UTCJul 16, 16:00 UTC55m
2026-07-16 MILAN80 - Jul 16, 10:50 UTCJul 16, 13:49 UTC3h 0m
2026-07-14 MILAN80 - Jul 14, 18:00 UTCJul 14, 18:50 UTC50m
2026-07-14 MILAN80 - Jul 14, 14:00 UTCJul 14, 17:15 UTC3h 15m
2026-07-14 MILAN80 - Jul 14, 09:45 UTCJul 14, 12:20 UTC2h 35m
2026-07-13 MILAN80 - Jul 13, 17:55 UTCJul 13, 19:25 UTC1h 30m
2026-07-13 MILAN80 - Jul 13, 11:45 UTCJul 13, 13:20 UTC1h 35m
2026-07-13 MILAN80 - Jul 13, 07:01 UTCJul 13, 09:45 UTC2h 45m
2026-07-13 MILAN80 - Jul 13, 04:10 UTCJul 13, 05:55 UTC1h 45m
2026-07-12 MILAN80 - Jul 12, 17:10 UTCJul 12, 19:25 UTC2h 15m
2026-07-12 MILAN80 - Jul 12, 12:45 UTCJul 12, 15:35 UTC2h 50m

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 F-ZBMM page for operator, model, and routing details .

Mode-S 3B7B39 frequently asked

What is Mode-S code 3B7B39?
3B7B39 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-ZBMM.
Where is Mode-S 3B7B39 registered?
Mode-S code 3B7B39 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3B7B39 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3B7B39, octal 16675471, decimal 3,898,169.
What flights does 3B7B39 operate?
Mode-S 3B7B39 has broadcast 1 distinct callsign, including MILAN80.