Apparatus

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sensors Mode-S transponder

399B0C

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HGYM · EMBRAER ERJ-145

Hex
399B0C
Octal
16315414
Decimal
3,775,244
Country
FR
Tail
F-HGYM
Type
E145
No current signal · last broadcast Jul 26, 19:00 UTC
Flights observed
80
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 19:00 UTC

Last known position

Most recent position reported by Mode-S 399B0C.

Country allocation

The ICAO 24-bit address 399B0C 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
AIA6413 Avies 7 2026-07-26
AIA6412 Avies 7 2026-07-26
AIA6411 Avies 5 2026-07-24
AEH241 - 5 2026-06-26
AIA6410 Avies 4 2026-07-24
AEH241F Aviaexpress 4 2026-06-25
AEH252 Aviaexpress 3 2026-07-18
AEH242 Aviaexpress 3 2026-06-27
AEH252F Aviaexpress 2 2026-07-19
AEH196F - 2 2026-07-11
AEH191F - 2 2026-07-18
AEH191 - 2 2026-07-18
AEH802 Aviaexpress 1 2026-05-27
AEH801 Aviaexpress 1 2026-05-27
AEH269 - 1 2026-07-04
AEH268F - 1 2026-07-01
AEH268 - 1 2026-07-01
AEH266 - 1 2026-06-25
AEH265 - 1 2026-06-23
AEH264 - 1 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AIA6412 ORY → ORY Jul 26, 18:00 UTCJul 26, 19:00 UTC1h 0m
2026-07-26 AIA6413 PUF → PUF Jul 26, 15:50 UTCJul 26, 17:00 UTC1h 10m
2026-07-24 AIA6412 ORY → ORY Jul 24, 18:25 UTCJul 24, 19:40 UTC1h 15m
2026-07-24 AIA6413 PUF → PUF Jul 24, 15:45 UTCJul 24, 16:45 UTC1h 0m
2026-07-24 AIA6410 ORY → ORY Jul 24, 07:40 UTCJul 24, 08:50 UTC1h 10m
2026-07-24 AIA6411 PUF → PUF Jul 24, 05:10 UTCJul 24, 06:25 UTC1h 15m
2026-07-23 AIA6412 ORY → ORY Jul 23, 18:00 UTCJul 23, 19:05 UTC1h 5m
2026-07-23 AIA6413 PUF → PUF Jul 23, 15:50 UTCJul 23, 16:55 UTC1h 5m
2026-07-23 AIA6410 ORY → ORY Jul 23, 07:35 UTCJul 23, 08:35 UTC1h 0m
2026-07-23 AIA6411 PUF → PUF Jul 23, 05:10 UTCJul 23, 06:15 UTC1h 5m
2026-07-22 AIA6412 ORY → ORY Jul 22, 17:55 UTCJul 22, 19:00 UTC1h 5m
2026-07-22 AIA6413 PUF → PUF Jul 22, 15:40 UTCJul 22, 16:45 UTC1h 5m
2026-07-22 AIA6411 - Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-21 AIA6412 ORY → ORY Jul 21, 18:05 UTCJul 21, 19:15 UTC1h 10m
2026-07-21 AIA6413 PUF → PUF Jul 21, 15:50 UTCJul 21, 16:55 UTC1h 5m
2026-07-21 AIA6410 - Jul 21, 07:25 UTCJul 21, 08:30 UTC1h 5m
2026-07-21 AIA6411 - Jul 21, 05:05 UTCJul 21, 06:10 UTC1h 5m
2026-07-20 AIA6412 ORY → ORY Jul 20, 17:50 UTCJul 20, 19:00 UTC1h 10m
2026-07-20 AIA6413 PUF → PUF Jul 20, 15:40 UTCJul 20, 16:45 UTC1h 5m
2026-07-20 AIA6410 - Jul 20, 07:35 UTCJul 20, 08:45 UTC1h 10m
2026-07-20 AIA6411 - Jul 20, 05:20 UTCJul 20, 06:20 UTC1h 0m
2026-07-19 AIA6412 - Jul 19, 17:55 UTCJul 19, 19:05 UTC1h 10m
2026-07-19 AIA6413 PUF → PUF Jul 19, 15:45 UTCJul 19, 16:45 UTC1h 0m
2026-07-19 AEH252F RNS → LBG Jul 19, 10:35 UTCJul 19, 12:15 UTC1h 40m
2026-07-18 AEH252 MRS → LYS Jul 18, 19:10 UTCJul 18, 19:55 UTC45m
2026-07-18 AEH191F RTM → BSL Jul 18, 10:45 UTCJul 18, 11:50 UTC1h 5m
2026-07-18 AEH193 ZRH → MXP Jul 18, 08:30 UTCJul 18, 09:35 UTC1h 5m
2026-07-18 AEH191 - Jul 18, 05:50 UTCJul 18, 07:40 UTC1h 50m
2026-07-15 AEH190 - Jul 15, 14:40 UTCJul 15, 16:35 UTC1h 55m
2026-07-15 AEH199 - Jul 15, 11:30 UTCJul 15, 13:40 UTC2h 10m
2026-07-15 AEH199F - Jul 15, 08:00 UTCJul 15, 09:05 UTC1h 5m
2026-07-14 AEH191 LCG → BCN Jul 14, 12:15 UTCJul 14, 13:45 UTC1h 30m
2026-07-14 AEH191F - Jul 14, 09:05 UTCJul 14, 10:30 UTC1h 25m
2026-07-11 AEH197 - Jul 11, 08:30 UTCJul 11, 11:25 UTC2h 55m
2026-07-11 AEH196F - Jul 11, 06:30 UTCJul 11, 07:05 UTC35m
2026-07-09 AEH196F - Jul 9, 11:25 UTCJul 9, 12:50 UTC1h 25m
2026-07-04 AEH269 - Jul 4, 10:30 UTCJul 4, 11:10 UTC40m
2026-07-01 AEH268 - Jul 1, 11:10 UTCJul 1, 12:45 UTC1h 35m
2026-07-01 AEH268F - Jul 1, 08:05 UTCJul 1, 09:05 UTC1h 0m
2026-06-27 AEH242F - Jun 27, 12:25 UTCJun 27, 13:24 UTC1h 0m
2026-06-27 AEH242 CWL → LBG Jun 27, 08:55 UTCJun 27, 11:30 UTC2h 35m
2026-06-26 AEH241 - Jun 26, 10:20 UTCJun 26, 12:29 UTC2h 10m
2026-06-25 AEH241F LIL → LIL Jun 25, 15:15 UTCJun 25, 16:55 UTC1h 40m
2026-06-25 AEH266 - Jun 25, 11:59 UTCJun 25, 12:54 UTC55m
2026-06-23 AEH265 - Jun 23, 11:29 UTCJun 23, 12:45 UTC1h 15m
2026-06-20 AEH264 - Jun 20, 10:15 UTCJun 20, 10:44 UTC30m
2026-06-17 AEH263 - Jun 17, 10:20 UTCJun 17, 11:15 UTC55m
2026-06-14 AEH262 - Jun 14, 09:50 UTCJun 14, 12:05 UTC2h 15m
2026-06-13 AEH261 - Jun 13, 00:40 UTCJun 13, 02:30 UTC1h 50m
2026-06-12 AEH261F - Jun 12, 19:00 UTCJun 12, 21:25 UTC2h 25m

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-HGYM page for operator, model, and routing details .

Mode-S 399B0C frequently asked

What is Mode-S code 399B0C?
399B0C is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HGYM.
Where is Mode-S 399B0C registered?
Mode-S code 399B0C is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 399B0C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 399B0C, octal 16315414, decimal 3,775,244.
What flights does 399B0C operate?
Mode-S 399B0C has broadcast 20 distinct callsigns, including AIA6413, AIA6412, AIA6411, AEH241, AIA6410.