sensors Mode-S transponder

39BDB4

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HPNU · AIRBUS A220-300

Hex
39BDB4
Octal
16336664
Decimal
3,784,116
Country
FR
Tail
F-HPNU
Type
BCS3
Broadcasting now · callsign AFR68JQ · 28,175 ft
Flights observed
262
Distinct callsigns
20
Country
FR
Last broadcast
6h ago

Current position

39BDB4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39BDB4 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
AFR79BN Air France 6 2026-05-11
AFR49EC Air France 5 2026-05-21
AFR76RE Air France 4 2026-05-21
AFR69DF - 4 2026-05-10
AFR55QX Air France 4 2026-04-25
AFR1414 Air France 4 2026-05-16
AFR96EU - 3 2026-04-21
AFR71PD Air France 3 2026-05-07
AFR61QR Air France 3 2026-05-26
AFR59VC - 3 2026-05-26
AFR53EJ Air France 3 2026-05-28
AFR47CB Air France 3 2026-05-17
AFR38YN Air France 3 2026-05-02
AFR34UP Air France 3 2026-05-15
AFR33SQ Air France 3 2026-05-08
AFR32QK Air France 3 2026-04-21
AFR32KD - 3 2026-05-16
AFR26RR Air France 3 2026-05-15
AFR22FA Air France 3 2026-05-02
AFR19BX Air France 3 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFR1655 ALG → CDG May 30, 12:20 UTCMay 30, 14:15 UTC1h 55m
2026-05-30 AFR1654 CDG → ALG May 30, 09:00 UTCMay 30, 10:40 UTC1h 40m
2026-05-30 AFR71GF OSL → CDG May 30, 04:45 UTCMay 30, 06:50 UTC2h 5m
2026-05-29 AFR1274 CDG → OSL May 29, 19:20 UTCMay 29, 21:15 UTC1h 55m
2026-05-29 AFR15JJ - May 29, 17:10 UTCMay 29, 17:50 UTC40m
2026-05-29 AFR57AU CDG → NTE May 29, 15:20 UTCMay 29, 16:10 UTC50m
2026-05-29 AFR31PQ - May 29, 11:45 UTCMay 29, 13:45 UTC2h 0m
2026-05-29 AFR41GW CDG → LIS May 29, 08:10 UTCMay 29, 10:20 UTC2h 10m
2026-05-29 AFR79JE - May 29, 05:45 UTCMay 29, 06:40 UTC55m
2026-05-28 AFR31SG CDG → GVA May 28, 19:05 UTCMay 28, 19:55 UTC50m
2026-05-28 AFR18UP HEL → CDG May 28, 15:20 UTCMay 28, 17:50 UTC2h 30m
2026-05-28 AFR53EJ CDG → HEL May 28, 11:00 UTCMay 28, 14:00 UTC3h 0m
2026-05-28 AFR19QA - May 28, 07:15 UTCMay 28, 08:35 UTC1h 20m
2026-05-28 AFR44VX CDG → NCE May 28, 04:50 UTCMay 28, 06:00 UTC1h 10m
2026-05-27 AFR49BA RBA → CDG May 27, 17:45 UTCMay 27, 20:10 UTC2h 25m
2026-05-27 AFR31CZ CDG → RBA May 27, 13:55 UTCMay 27, 16:20 UTC2h 25m
2026-05-27 AFR17AQ MAD → CDG May 27, 11:15 UTCMay 27, 12:35 UTC1h 20m
2026-05-27 AFR59WL CDG → MUC May 27, 09:00 UTCMay 27, 10:05 UTC1h 5m
2026-05-27 AFR69SA MAN → CDG May 27, 06:20 UTCMay 27, 07:15 UTC56m
2026-05-26 AFR1268 CDG → MAN May 26, 20:20 UTCMay 26, 21:20 UTC1h 0m
2026-05-26 AFR59VC - May 26, 16:45 UTCMay 26, 19:05 UTC2h 20m
2026-05-26 AFR61QR CDG → ARN May 26, 13:19 UTCMay 26, 15:24 UTC2h 5m
2026-05-26 AFR18SQ BIQ → CDG May 26, 10:10 UTCMay 26, 11:15 UTC1h 5m
2026-05-26 AFR94QB CDG → BIQ May 26, 07:59 UTCMay 26, 08:59 UTC1h 0m
2026-05-26 AFR79JE GVA → CDG May 26, 05:30 UTCMay 26, 06:25 UTC55m
2026-05-25 AFR31SG CDG → GVA May 25, 19:00 UTCMay 25, 19:44 UTC44m
2026-05-25 AFR18UP HEL → CDG May 25, 14:55 UTCMay 25, 17:40 UTC2h 45m
2026-05-25 AFR53EJ CDG → HEL May 25, 11:20 UTCMay 25, 13:45 UTC2h 25m
2026-05-25 AFR49ML RBA → CDG May 25, 05:30 UTCMay 25, 07:55 UTC2h 25m
2026-05-24 AFR49HR CDG → RBA May 24, 19:50 UTCMay 24, 21:45 UTC1h 55m
2026-05-23 AFR54ZQ DUB → CDG May 23, 08:30 UTCMay 23, 09:45 UTC1h 15m
2026-05-23 AFR25XW CDG → DUB May 23, 05:50 UTCMay 23, 07:10 UTC1h 20m
2026-05-22 AFR49BA RBA → CDG May 22, 17:45 UTCMay 22, 20:00 UTC2h 15m
2026-05-22 AFR31CZ CDG → RBA May 22, 14:00 UTCMay 22, 16:20 UTC2h 20m
2026-05-22 AFR1687 EDI → CDG May 22, 10:55 UTCMay 22, 12:20 UTC1h 25m
2026-05-22 AFR57FH CDG → EDI May 22, 08:20 UTCMay 22, 09:45 UTC1h 25m
2026-05-22 AFR53TN - May 22, 05:40 UTCMay 22, 06:20 UTC40m
2026-05-21 AFR49VJ BHX → CDG May 21, 19:20 UTCMay 21, 20:00 UTC40m
2026-05-21 AFR38PA TLS → AMS May 21, 16:55 UTCMay 21, 17:45 UTC50m
2026-05-21 AFR96WQ CDG → AMS May 21, 14:40 UTCMay 21, 15:25 UTC45m
2026-05-21 AFR33NA BOD → CDG May 21, 12:25 UTCMay 21, 13:15 UTC50m
2026-05-21 AFR24JD - May 21, 10:20 UTCMay 21, 11:20 UTC1h 0m
2026-05-21 AFR49EC ATH → CDG May 21, 07:20 UTCMay 21, 08:15 UTC55m
2026-05-21 AFR76RE CDG → GVA May 21, 05:35 UTCMay 21, 06:25 UTC50m
2026-05-20 AFR69SA MAN → CDG May 20, 05:10 UTCMay 20, 06:15 UTC1h 5m
2026-05-19 AFR1268 CDG → MAN May 19, 20:00 UTCMay 19, 21:05 UTC1h 5m
2026-05-19 AFR27SD ZRH → CDG May 19, 17:30 UTCMay 19, 18:30 UTC1h 0m
2026-05-19 AFR53FU CDG → ZRH May 19, 15:30 UTCMay 19, 16:15 UTC45m
2026-05-17 AFR73PJ BOD → CDG May 17, 19:15 UTCMay 17, 20:20 UTC1h 5m
2026-05-17 AFR84ZX CDG → BOD May 17, 17:30 UTCMay 17, 18:20 UTC50m

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

Mode-S 39BDB4 frequently asked

What is Mode-S code 39BDB4?
39BDB4 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HPNU.
Where is Mode-S 39BDB4 registered?
Mode-S code 39BDB4 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39BDB4 broadcasting right now?
Yes. Mode-S 39BDB4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39BDB4, octal 16336664, decimal 3,784,116.
What flights does 39BDB4 operate?
Mode-S 39BDB4 has broadcast 20 distinct callsigns, including AFR79BN, AFR49EC, AFR76RE, AFR69DF, AFR55QX.