Apparatus

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sensors Mode-S transponder

39C88C

ICAO 24-bit transponder address · allocated to France

Hex
39C88C
Octal
16344214
Decimal
3,786,892
Country
FR
Transponder active on ground
Flights observed
217
Distinct callsigns
1
Country
FR
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 39C88C.

Country allocation

The ICAO 24-bit address 39C88C 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
EVFHSEM - 217 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 EVFHSEM - Jul 17, 15:44 UTCJul 17, 16:34 UTC50m
2026-07-17 EVFHSEM - Jul 17, 14:50 UTCJul 17, 15:00 UTC10m
2026-07-16 EVFHSEM - Jul 16, 08:00 UTCJul 16, 08:10 UTC10m
2026-07-14 EVFHSEM - Jul 14, 21:45 UTCJul 14, 21:55 UTC10m
2026-07-14 EVFHSEM - Jul 14, 20:55 UTCJul 14, 21:05 UTC10m
2026-07-13 EVFHSEM - Jul 13, 20:10 UTCJul 13, 20:20 UTC10m
2026-07-13 EVFHSEM - Jul 13, 09:40 UTCJul 13, 09:50 UTC10m
2026-07-13 EVFHSEM - Jul 13, 08:05 UTCJul 13, 08:50 UTC45m
2026-07-13 EVFHSEM - Jul 13, 06:30 UTCJul 13, 06:40 UTC10m
2026-07-13 EVFHSEM - Jul 13, 05:55 UTCJul 13, 06:05 UTC10m
2026-07-12 EVFHSEM - Jul 12, 05:55 UTCJul 12, 06:30 UTC35m
2026-07-11 EVFHSEM - Jul 11, 12:20 UTCJul 11, 12:35 UTC15m
2026-07-11 EVFHSEM - Jul 11, 11:30 UTCJul 11, 11:40 UTC10m
2026-07-11 EVFHSEM - Jul 11, 10:15 UTCJul 11, 11:05 UTC50m
2026-07-10 EVFHSEM - Jul 10, 20:50 UTCJul 10, 21:30 UTC40m
2026-07-10 EVFHSEM - Jul 10, 17:30 UTCJul 10, 17:45 UTC15m
2026-07-10 EVFHSEM - Jul 10, 16:10 UTCJul 10, 16:20 UTC10m
2026-07-09 EVFHSEM - Jul 9, 09:25 UTCJul 9, 09:30 UTC5m
2026-07-08 EVFHSEM - Jul 8, 19:15 UTCJul 8, 19:25 UTC10m
2026-07-08 EVFHSEM - Jul 8, 07:20 UTCJul 8, 07:25 UTC5m
2026-07-07 EVFHSEM - Jul 7, 13:05 UTCJul 7, 13:15 UTC10m
2026-07-07 EVFHSEM - Jul 7, 09:55 UTCJul 7, 10:40 UTC45m
2026-07-07 EVFHSEM - Jul 7, 09:25 UTCJul 7, 09:30 UTC5m
2026-07-06 EVFHSEM - Jul 6, 16:35 UTCJul 6, 16:45 UTC10m
2026-07-06 EVFHSEM - Jul 6, 12:25 UTCJul 6, 12:35 UTC10m
2026-07-05 EVFHSEM - Jul 5, 10:55 UTCJul 5, 12:20 UTC1h 25m
2026-07-03 EVFHSEM - Jul 3, 21:00 UTCJul 3, 21:10 UTC10m
2026-07-03 EVFHSEM - Jul 3, 20:05 UTCJul 3, 20:15 UTC10m
2026-07-03 EVFHSEM - Jul 3, 15:55 UTCJul 3, 16:10 UTC15m
2026-07-03 EVFHSEM - Jul 3, 15:10 UTCJul 3, 15:20 UTC10m
2026-07-02 EVFHSEM - Jul 2, 14:20 UTCJul 2, 14:25 UTC5m
2026-07-02 EVFHSEM - Jul 2, 11:00 UTCJul 2, 11:10 UTC10m
2026-07-02 EVFHSEM - Jul 2, 10:20 UTCJul 2, 10:30 UTC10m
2026-07-02 EVFHSEM - Jul 2, 08:55 UTCJul 2, 09:25 UTC30m
2026-07-02 EVFHSEM - Jul 2, 08:20 UTCJul 2, 08:30 UTC10m
2026-07-02 EVFHSEM - Jul 2, 07:10 UTCJul 2, 07:20 UTC10m
2026-07-01 EVFHSEM - Jul 1, 05:05 UTCJul 1, 05:40 UTC35m
2026-06-30 EVFHSEM - Jun 30, 13:25 UTCJun 30, 14:55 UTC1h 30m
2026-06-30 EVFHSEM - Jun 30, 10:30 UTCJun 30, 10:40 UTC10m
2026-06-30 EVFHSEM - Jun 30, 07:20 UTCJun 30, 07:30 UTC10m
2026-06-30 EVFHSEM - Jun 30, 06:05 UTCJun 30, 06:50 UTC45m
2026-06-29 EVFHSEM - Jun 29, 16:55 UTCJun 29, 17:59 UTC1h 5m
2026-06-29 EVFHSEM - Jun 29, 16:00 UTCJun 29, 16:10 UTC10m
2026-06-29 EVFHSEM - Jun 29, 13:04 UTCJun 29, 14:29 UTC1h 25m
2026-06-29 EVFHSEM - Jun 29, 11:10 UTCJun 29, 11:50 UTC40m
2026-06-29 EVFHSEM - Jun 29, 08:39 UTCJun 29, 08:54 UTC15m
2026-06-29 EVFHSEM - Jun 29, 01:55 UTCJun 29, 02:05 UTC10m
2026-06-29 EVFHSEM - Jun 29, 01:14 UTCJun 29, 01:25 UTC10m
2026-06-28 EVFHSEM - Jun 28, 23:54 UTCJun 29, 00:10 UTC15m
2026-06-28 EVFHSEM - Jun 28, 11:50 UTCJun 28, 12:55 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.

Mode-S 39C88C frequently asked

What is Mode-S code 39C88C?
39C88C is an ICAO 24-bit transponder address. Allocated to France.
Where is Mode-S 39C88C registered?
Mode-S code 39C88C is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39C88C broadcasting right now?
Mode-S 39C88C is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39C88C, octal 16344214, decimal 3,786,892.
What flights does 39C88C operate?
Mode-S 39C88C has broadcast 1 distinct callsign, including EVFHSEM.