Apparatus

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sensors Mode-S transponder

39856D

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HBLN · EMBRAER ERJ-190-100

Hex
39856D
Octal
16302555
Decimal
3,769,709
Country
FR
Tail
F-HBLN
Type
E190
Broadcasting now · callsign AFR28NP · 28,000 ft
Flights observed
382
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 19:00 UTC

Current position

39856D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39856D 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
KLM81Y KLM Royal Dutch Airlines 13 2026-05-16
KLM52N KLM Royal Dutch Airlines 13 2026-05-16
KLM97J KLM Royal Dutch Airlines 12 2026-05-15
KLM44T KLM Royal Dutch Airlines 12 2026-05-15
KLM1423 KLM Royal Dutch Airlines 12 2026-05-15
KLM60Z KLM Royal Dutch Airlines 11 2026-05-15
AFR99WB - 7 2026-07-16
AFR45PP - 7 2026-07-16
KLM96C KLM Royal Dutch Airlines 6 2026-04-28
KLM49E KLM Royal Dutch Airlines 6 2026-04-29
KLM43R KLM Royal Dutch Airlines 6 2026-04-28
KLM26F KLM Royal Dutch Airlines 6 2026-04-28
KLM1850 KLM Royal Dutch Airlines 6 2026-04-29
KLM1849 KLM Royal Dutch Airlines 6 2026-04-29
AFR92RF - 5 2026-07-25
AFR87WZ Air France 5 2026-07-26
AFR83RP Air France 5 2026-05-26
AFR73GC Air France 5 2026-07-26
AFR71PP - 5 2026-07-14
AFR59MZ - 5 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR89NH - Jul 26, 17:25 UTCJul 26, 19:00 UTC1h 35m
2026-07-26 AFR32ZQ - Jul 26, 14:35 UTCJul 26, 16:10 UTC1h 35m
2026-07-26 AFR73GC PUF → CDG Jul 26, 12:15 UTCJul 26, 13:30 UTC1h 15m
2026-07-26 AFR87WZ CDG → PUF Jul 26, 10:05 UTCJul 26, 11:00 UTC55m
2026-07-26 AFR71RB LYS → BOD Jul 26, 05:35 UTCJul 26, 07:30 UTC1h 56m
2026-07-25 AFR1656 - Jul 25, 18:30 UTCJul 25, 20:00 UTC1h 30m
2026-07-25 AFR59MZ - Jul 25, 14:30 UTCJul 25, 16:35 UTC2h 5m
2026-07-25 AFR92RF - Jul 25, 11:15 UTCJul 25, 12:55 UTC1h 40m
2026-07-24 AFR56TN LJU → CDG Jul 24, 17:20 UTCJul 24, 18:50 UTC1h 30m
2026-07-24 AFR53NB CDG → LJU Jul 24, 14:50 UTCJul 24, 16:25 UTC1h 35m
2026-07-24 AFR73GC PUF → CDG Jul 24, 12:30 UTCJul 24, 13:30 UTC1h 0m
2026-07-24 AFR87WZ CDG → PUF Jul 24, 10:20 UTCJul 24, 11:20 UTC1h 0m
2026-07-24 AFR1519 FRA → CDG Jul 24, 08:10 UTCJul 24, 09:10 UTC1h 0m
2026-07-24 AFR87YU - Jul 24, 06:15 UTCJul 24, 07:05 UTC50m
2026-07-23 AFR1291 - Jul 23, 17:40 UTCJul 23, 20:15 UTC2h 35m
2026-07-23 AFR11WP - Jul 23, 14:20 UTCJul 23, 16:15 UTC1h 55m
2026-07-23 AFR51AM VLC → CDG Jul 23, 11:05 UTCJul 23, 12:45 UTC1h 40m
2026-07-23 AFR16TV - Jul 23, 08:25 UTCJul 23, 10:00 UTC1h 35m
2026-07-23 AFR28VV - Jul 23, 05:00 UTCJul 23, 06:40 UTC1h 40m
2026-07-22 AFR47CY - Jul 22, 20:05 UTCJul 22, 21:40 UTC1h 35m
2026-07-22 AFR26GU - Jul 22, 16:55 UTCJul 22, 18:45 UTC1h 50m
2026-07-22 AFR51JY - Jul 22, 13:55 UTCJul 22, 15:25 UTC1h 30m
2026-07-22 AFR54HQ LJU → CDG Jul 22, 04:50 UTCJul 22, 12:15 UTC7h 25m
2026-07-21 AFR37TB - Jul 21, 19:15 UTCJul 21, 20:35 UTC1h 20m
2026-07-21 AFR59MZ - Jul 21, 14:35 UTCJul 21, 16:40 UTC2h 5m
2026-07-21 AFR92RF - Jul 21, 11:05 UTCJul 21, 12:50 UTC1h 45m
2026-07-21 AFR62TN - Jul 21, 08:45 UTCJul 21, 09:45 UTC1h 0m
2026-07-21 AFR34DB CDG → BES Jul 21, 07:05 UTCJul 21, 07:55 UTC50m
2026-07-20 AFR47VP CAG → CDG Jul 20, 17:20 UTCJul 20, 19:15 UTC1h 55m
2026-07-20 AFR11QN CDG → CAG Jul 20, 14:20 UTCJul 20, 15:55 UTC1h 35m
2026-07-20 AFR18SQ - Jul 20, 11:50 UTCJul 20, 12:45 UTC55m
2026-07-20 AFR94QB CDG → BIQ Jul 20, 09:50 UTCJul 20, 10:50 UTC1h 0m
2026-07-20 AFR14NJ DBV → CDG Jul 20, 05:05 UTCJul 20, 07:25 UTC2h 20m
2026-07-19 AFR57WB - Jul 19, 17:45 UTCJul 19, 19:30 UTC1h 45m
2026-07-19 AFR59MZ - Jul 19, 14:05 UTCJul 19, 16:15 UTC2h 10m
2026-07-19 AFR92RF - Jul 19, 10:55 UTCJul 19, 12:55 UTC2h 0m
2026-07-19 AFR41XR BSL → CDG Jul 19, 08:55 UTCJul 19, 09:45 UTC50m
2026-07-19 AFR1192 - Jul 19, 07:15 UTCJul 19, 07:55 UTC40m
2026-07-19 AFR1107 - Jul 19, 05:10 UTCJul 19, 06:00 UTC50m
2026-07-18 AFR42YN - Jul 18, 18:55 UTCJul 18, 19:40 UTC45m
2026-07-18 AFR59MZ - Jul 18, 14:15 UTCJul 18, 16:20 UTC2h 5m
2026-07-18 AFR92RF - Jul 18, 11:20 UTCJul 18, 13:20 UTC2h 0m
2026-07-18 AFR43DH ORK → CDG Jul 18, 08:30 UTCJul 18, 09:50 UTC1h 20m
2026-07-18 AFR1078 - Jul 18, 06:00 UTCJul 18, 07:25 UTC1h 25m
2026-07-17 AFR1291 - Jul 17, 20:50 UTCJul 17, 23:10 UTC2h 20m
2026-07-17 AFR11WP - Jul 17, 15:49 UTCJul 17, 17:55 UTC2h 5m
2026-07-17 AFR23SB - Jul 17, 13:05 UTCJul 17, 14:10 UTC1h 5m
2026-07-17 AFR23UQ - Jul 17, 11:20 UTCJul 17, 12:15 UTC55m
2026-07-17 AFR14WZ NAP → CDG Jul 17, 06:25 UTCJul 17, 08:15 UTC1h 50m
2026-07-16 AFR73CU - Jul 16, 19:25 UTCJul 16, 21:05 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.

Prefer a tail-number view? See the F-HBLN page for operator, model, and routing details .

Mode-S 39856D frequently asked

What is Mode-S code 39856D?
39856D is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HBLN.
Where is Mode-S 39856D registered?
Mode-S code 39856D is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39856D broadcasting right now?
Yes. Mode-S 39856D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39856D, octal 16302555, decimal 3,769,709.
What flights does 39856D operate?
Mode-S 39856D has broadcast 20 distinct callsigns, including KLM81Y, KLM52N, KLM97J, KLM44T, KLM1423.