sensors Mode-S transponder

39856A

ICAO 24-bit transponder address · allocated to France

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

Hex
39856A
Octal
16302552
Decimal
3,769,706
Country
FR
Tail
F-HBLK
Type
E190
No current signal · last broadcast Jul 26, 20:50 UTC
Flights observed
354
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S 39856A.

Country allocation

The ICAO 24-bit address 39856A 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
AFR98ZF Air France 6 2026-07-14
AFR94UK - 6 2026-07-04
AFR57DB Air France 6 2026-07-04
AFR54HQ Air France 6 2026-07-04
AFR38CD Air France 6 2026-07-04
AFR1703 Air France 6 2026-07-14
AFR99WB - 5 2026-07-01
AFR7497 - 5 2026-07-01
AFR7496 Air France 5 2026-06-30
AFR68FJ Air France 5 2026-07-26
AFR53PG - 5 2026-07-13
AFR47CY - 5 2026-07-21
AFR45PP - 5 2026-07-01
AFR42PR - 5 2026-07-13
AFR35ZZ Air France 5 2026-07-26
AFR28VV - 5 2026-07-16
KLM49E KLM Royal Dutch Airlines 4 2026-04-23
KLM1850 KLM Royal Dutch Airlines 4 2026-04-23
KLM1849 KLM Royal Dutch Airlines 4 2026-04-23
AFR87YU - 4 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR25QX - Jul 26, 19:55 UTCJul 26, 20:50 UTC55m
2026-07-26 AFR37NM BIQ → CDG Jul 26, 13:45 UTCJul 26, 14:55 UTC1h 10m
2026-07-26 AFR65DN CDG → BIQ Jul 26, 11:10 UTCJul 26, 12:10 UTC1h 0m
2026-07-26 AFR68FJ BIO → CDG Jul 26, 08:50 UTCJul 26, 10:00 UTC1h 10m
2026-07-26 AFR35ZZ CDG → BIO Jul 26, 06:25 UTCJul 26, 07:20 UTC56m
2026-07-25 AFR9372 BIQ → LYS Jul 25, 18:00 UTCJul 25, 19:15 UTC1h 15m
2026-07-25 AFR1078 CDG → ORK Jul 25, 06:05 UTCJul 25, 07:25 UTC1h 20m
2026-07-24 AFR84RP DUS → CDG Jul 24, 17:40 UTCJul 24, 18:25 UTC45m
2026-07-24 AFR32UN CDG → DUS Jul 24, 15:45 UTCJul 24, 16:30 UTC45m
2026-07-24 AFR37NM BIQ → CDG Jul 24, 13:20 UTCJul 24, 14:20 UTC1h 0m
2026-07-24 AFR65DN - Jul 24, 11:20 UTCJul 24, 12:25 UTC1h 5m
2026-07-24 AFR68FJ - Jul 24, 08:55 UTCJul 24, 10:10 UTC1h 15m
2026-07-24 AFR35ZZ CDG → BIO Jul 24, 06:40 UTCJul 24, 07:45 UTC1h 5m
2026-07-23 AFR67RZ - Jul 23, 18:25 UTCJul 23, 20:30 UTC2h 5m
2026-07-23 AFR29AT CDG → AGP Jul 23, 14:35 UTCJul 23, 16:40 UTC2h 5m
2026-07-23 AFR92HL - Jul 23, 11:20 UTCJul 23, 13:20 UTC2h 0m
2026-07-23 AFR36KN - Jul 23, 08:00 UTCJul 23, 10:05 UTC2h 5m
2026-07-22 AFR89NH - Jul 22, 17:10 UTCJul 22, 18:55 UTC1h 45m
2026-07-22 AFR32ZQ - Jul 22, 14:30 UTCJul 22, 15:55 UTC1h 25m
2026-07-22 AFR51AM VLC → CDG Jul 22, 11:10 UTCJul 22, 12:40 UTC1h 30m
2026-07-21 AFR47CY - Jul 21, 19:30 UTCJul 21, 21:10 UTC1h 40m
2026-07-21 AFR28WV - Jul 21, 16:00 UTCJul 21, 18:20 UTC2h 20m
2026-07-21 AFR43RA - Jul 21, 13:05 UTCJul 21, 15:05 UTC2h 0m
2026-07-21 AFR88FG - Jul 21, 09:20 UTCJul 21, 11:45 UTC2h 25m
2026-07-21 AFR18YX - Jul 21, 05:25 UTCJul 21, 07:35 UTC2h 10m
2026-07-20 AFR19AV - Jul 20, 19:25 UTCJul 20, 20:25 UTC1h 0m
2026-07-20 AFR71TY CDG → BIQ Jul 20, 17:30 UTCJul 20, 18:30 UTC1h 0m
2026-07-20 AFR71RQ - Jul 20, 14:30 UTCJul 20, 16:00 UTC1h 30m
2026-07-20 AFR34DC - Jul 20, 11:00 UTCJul 20, 12:35 UTC1h 35m
2026-07-20 AFR1519 FRA → CDG Jul 20, 08:25 UTCJul 20, 09:20 UTC55m
2026-07-20 AFR87YU - Jul 20, 06:00 UTCJul 20, 06:55 UTC55m
2026-07-19 AFR89NH - Jul 19, 17:30 UTCJul 19, 19:15 UTC1h 45m
2026-07-19 AFR32ZQ - Jul 19, 15:00 UTCJul 19, 16:25 UTC1h 25m
2026-07-19 AFR73GC PUF → CDG Jul 19, 12:15 UTCJul 19, 13:15 UTC1h 0m
2026-07-19 AFR87WZ CDG → PUF Jul 19, 10:00 UTCJul 19, 11:05 UTC1h 5m
2026-07-19 AFR14NJ - Jul 19, 04:45 UTCJul 19, 07:10 UTC2h 25m
2026-07-18 AFR57WB - Jul 18, 17:50 UTCJul 18, 19:40 UTC1h 50m
2026-07-18 AFR16UB - Jul 18, 14:40 UTCJul 18, 16:30 UTC1h 50m
2026-07-18 AFR46HJ - Jul 18, 11:30 UTCJul 18, 13:10 UTC1h 40m
2026-07-18 AFR68FJ - Jul 18, 09:05 UTCJul 18, 10:05 UTC1h 0m
2026-07-18 AFR35ZZ CDG → BIO Jul 18, 06:30 UTCJul 18, 07:40 UTC1h 10m
2026-07-17 AFR56TN LJU → CDG Jul 17, 19:09 UTCJul 17, 20:50 UTC1h 40m
2026-07-17 AFR53NB CDG → LJU Jul 17, 16:34 UTCJul 17, 18:05 UTC1h 30m
2026-07-17 AFR73GC PUF → CDG Jul 17, 13:10 UTCJul 17, 14:10 UTC1h 0m
2026-07-17 AFR87WZ CDG → PUF Jul 17, 11:10 UTCJul 17, 12:10 UTC1h 0m
2026-07-17 AFR1519 FRA → CDG Jul 17, 09:10 UTCJul 17, 09:55 UTC45m
2026-07-17 AFR87YU - Jul 17, 06:40 UTCJul 17, 07:35 UTC55m
2026-07-16 AFR1291 - Jul 16, 18:05 UTCJul 16, 20:39 UTC2h 35m
2026-07-16 AFR11WP - Jul 16, 14:45 UTCJul 16, 16:49 UTC2h 5m
2026-07-16 AFR51AM VLC → CDG Jul 16, 11:45 UTCJul 16, 13:15 UTC1h 30m

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

Mode-S 39856A frequently asked

What is Mode-S code 39856A?
39856A is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HBLK.
Where is Mode-S 39856A registered?
Mode-S code 39856A is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39856A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39856A, octal 16302552, decimal 3,769,706.
What flights does 39856A operate?
Mode-S 39856A has broadcast 20 distinct callsigns, including AFR98ZF, AFR94UK, AFR57DB, AFR54HQ, AFR38CD.