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
Broadcasting now · callsign AFR65DN · 10,150 ft
Flights observed
291
Distinct callsigns
20
Country
FR
Last broadcast
1h ago

Current position

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

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
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
AFR99WB - 5 2026-07-01
AFR98ZF Air France 5 2026-07-10
AFR7497 - 5 2026-07-01
AFR7496 Air France 5 2026-06-30
AFR53PG - 5 2026-07-13
AFR45PP - 5 2026-07-01
AFR42PR - 5 2026-07-13
AFR1703 Air France 5 2026-07-10
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
AFR64CF Air France 4 2026-04-19
AFR28VV - 4 2026-06-30
AFR25WU - 4 2026-06-13
KLM96C KLM Royal Dutch Airlines 3 2026-04-22
KLM43R KLM Royal Dutch Airlines 3 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFR68FJ - Jul 14, 09:10 UTCJul 14, 10:15 UTC1h 5m
2026-07-14 AFR35ZZ - Jul 14, 06:35 UTCJul 14, 07:40 UTC1h 5m
2026-07-13 AFR1291 - Jul 13, 17:50 UTCJul 13, 20:20 UTC2h 30m
2026-07-13 AFR11WP - Jul 13, 14:15 UTCJul 13, 16:15 UTC2h 0m
2026-07-13 AFR42PR NCL → CDG Jul 13, 10:45 UTCJul 13, 12:00 UTC1h 15m
2026-07-13 AFR53PG - Jul 13, 08:35 UTCJul 13, 09:45 UTC1h 10m
2026-07-13 AFR37VC - Jul 13, 05:55 UTCJul 13, 07:15 UTC1h 20m
2026-07-12 AFR35UN - Jul 12, 19:25 UTCJul 12, 20:35 UTC1h 10m
2026-07-12 AFR33EP - Jul 12, 16:25 UTCJul 12, 17:50 UTC1h 25m
2026-07-12 AFR63TJ - Jul 12, 13:55 UTCJul 12, 15:20 UTC1h 25m
2026-07-12 AFR42PR NCL → CDG Jul 12, 10:55 UTCJul 12, 12:10 UTC1h 15m
2026-07-12 AFR53PG - Jul 12, 08:55 UTCJul 12, 10:05 UTC1h 10m
2026-07-12 AFR37VC NCL → CDG Jul 12, 05:50 UTCJul 12, 07:01 UTC1h 10m
2026-07-11 AFR35UN - Jul 11, 19:20 UTCJul 11, 20:25 UTC1h 5m
2026-07-11 AFR73GL - Jul 11, 15:05 UTCJul 11, 16:30 UTC1h 25m
2026-07-11 AFR35CP - Jul 11, 12:20 UTCJul 11, 13:50 UTC1h 30m
2026-07-10 AFR1703 TRN → CDG Jul 10, 18:05 UTCJul 10, 19:15 UTC1h 10m
2026-07-10 AFR98ZF CDG → TRN Jul 10, 16:05 UTCJul 10, 17:05 UTC1h 0m
2026-07-10 AFR39VJ BER → CDG Jul 10, 13:30 UTCJul 10, 14:20 UTC50m
2026-07-10 AFR87DR CDG → BSL Jul 10, 11:45 UTCJul 10, 12:30 UTC45m
2026-07-10 AFR45CR - Jul 10, 08:50 UTCJul 10, 09:40 UTC50m
2026-07-10 AFR78RT - Jul 10, 06:50 UTCJul 10, 07:35 UTC45m
2026-07-09 AFR83RP MAD → CDG Jul 9, 18:35 UTCJul 9, 20:05 UTC1h 30m
2026-07-09 AFR1100 - Jul 9, 15:45 UTCJul 9, 17:30 UTC1h 45m
2026-07-09 AFR39KK - Jul 9, 13:25 UTCJul 9, 14:15 UTC50m
2026-07-09 AFR71SZ - Jul 9, 11:20 UTCJul 9, 12:05 UTC45m
2026-07-09 AFR1241 - Jul 9, 07:45 UTCJul 9, 08:40 UTC55m
2026-07-09 AFR79RD - Jul 9, 05:45 UTCJul 9, 06:30 UTC45m
2026-07-08 AFR59MN DUB → CDG Jul 8, 18:20 UTCJul 8, 19:30 UTC1h 10m
2026-07-08 AFR58TX - Jul 8, 16:05 UTCJul 8, 17:20 UTC1h 15m
2026-07-08 AFR85WE BHX → CDG Jul 8, 13:50 UTCJul 8, 14:50 UTC1h 0m
2026-07-08 AFR44BY - Jul 8, 11:55 UTCJul 8, 12:50 UTC55m
2026-07-08 AFR84YN - Jul 8, 08:40 UTCJul 8, 10:20 UTC1h 40m
2026-07-08 AFR17NX - Jul 8, 06:05 UTCJul 8, 07:40 UTC1h 35m
2026-07-07 AFR37RL - Jul 7, 17:35 UTCJul 7, 19:20 UTC1h 45m
2026-07-07 AFR76MK - Jul 7, 14:25 UTCJul 7, 16:05 UTC1h 40m
2026-07-07 AFR59VR - Jul 7, 10:50 UTCJul 7, 12:45 UTC1h 55m
2026-07-07 AFR18DC - Jul 7, 07:40 UTCJul 7, 09:15 UTC1h 35m
2026-07-06 AFR93YQ MRS → CDG Jul 6, 17:25 UTCJul 6, 19:35 UTC2h 10m
2026-07-06 AFR45FZ - Jul 6, 14:05 UTCJul 6, 16:10 UTC2h 5m
2026-07-06 AFR57VW - Jul 6, 10:10 UTCJul 6, 12:00 UTC1h 50m
2026-07-06 AFR33YW - Jul 6, 06:35 UTCJul 6, 08:05 UTC1h 30m
2026-07-05 AFR57UR - Jul 5, 10:55 UTCJul 5, 12:50 UTC1h 55m
2026-07-05 AFR1878 - Jul 5, 08:20 UTCJul 5, 10:05 UTC1h 45m
2026-07-05 AFR92GP - Jul 5, 05:15 UTCJul 5, 07:05 UTC1h 50m
2026-07-04 AFR26CQ - Jul 4, 19:40 UTCJul 4, 21:15 UTC1h 35m
2026-07-04 AFR57DB ORK → CDG Jul 4, 16:25 UTCJul 4, 17:45 UTC1h 20m
2026-07-04 AFR38CD CDG → ORK Jul 4, 14:10 UTCJul 4, 15:35 UTC1h 25m
2026-07-04 AFR54HQ LJU → CDG Jul 4, 11:10 UTCJul 4, 12:40 UTC1h 30m
2026-07-04 AFR94UK - Jul 4, 08:40 UTCJul 4, 10:00 UTC1h 20m

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?
Yes. Mode-S 39856A is currently airborne.
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 AFR94UK, AFR57DB, AFR54HQ, AFR38CD, AFR99WB.