Apparatus

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sensors Mode-S transponder

398699

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HBUZ · AIRBUS A-321neo

Hex
398699
Octal
16303231
Decimal
3,770,009
Country
FR
Tail
F-HBUZ
Type
A21N
Broadcasting now · callsign DJT101 · 39,000 ft
Flights observed
135
Distinct callsigns
10
Country
FR
Last broadcast
4h ago

Current position

398699 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 398699 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 10 distinct

Callsign Airline Flights Last seen
DJT100 Denver Jet 41 2026-05-29
DJT101 Denver Jet 37 2026-05-29
DJT104 Denver Jet 15 2026-05-23
DJT105 Denver Jet 14 2026-05-24
DJT301 Denver Jet 12 2026-05-20
DJT300 Denver Jet 11 2026-05-21
DJT305 Denver Jet 2 2026-05-04
DJT201 Denver Jet 1 2026-05-22
DJT200 Denver Jet 1 2026-05-24
DJT010 - 1 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DJT101 EWR → ORY May 29, 23:20 UTCMay 30, 01:10 UTC1h 50m
2026-05-29 DJT100 ORY → EWR May 29, 10:30 UTCMay 29, 18:20 UTC7h 50m
2026-05-28 DJT101 EWR → ORY May 28, 23:20 UTCMay 29, 06:25 UTC7h 5m
2026-05-28 DJT100 ORY → EWR May 28, 08:45 UTCMay 28, 16:25 UTC7h 40m
2026-05-27 DJT101 EWR → ORY May 27, 23:10 UTCMay 28, 06:20 UTC7h 10m
2026-05-27 DJT100 ORY → EWR May 27, 08:50 UTCMay 27, 16:40 UTC7h 50m
2026-05-26 DJT101 EWR → ORY May 26, 23:10 UTCMay 27, 06:20 UTC7h 10m
2026-05-26 DJT100 ORY → EWR May 26, 08:45 UTCMay 26, 16:30 UTC7h 45m
2026-05-25 DJT101 EWR → ORY May 25, 23:10 UTCMay 26, 06:14 UTC7h 5m
2026-05-25 DJT100 ORY → EWR May 25, 08:35 UTCMay 25, 16:30 UTC7h 55m
2026-05-24 DJT101 EWR → ORY May 24, 23:15 UTCMay 25, 06:30 UTC7h 15m
2026-05-24 DJT200 ORY → EWR May 24, 10:55 UTCMay 24, 19:40 UTC8h 45m
2026-05-24 DJT105 ORY → NCE May 24, 07:30 UTCMay 24, 08:45 UTC1h 15m
2026-05-23 DJT105 ORY → NCE May 23, 23:30 UTCMay 24, 06:20 UTC6h 50m
2026-05-23 DJT104 ORY → EWR May 23, 13:10 UTCMay 23, 21:25 UTC8h 15m
2026-05-23 DJT104 ORY → EWR May 23, 11:00 UTCMay 23, 12:05 UTC1h 5m
2026-05-22 DJT201 EWR → NCE May 22, 23:25 UTCMay 23, 06:35 UTC7h 9m
2026-05-22 DJT100 ORY → EWR May 22, 08:45 UTCMay 22, 16:40 UTC7h 55m
2026-05-21 DJT101 EWR → ORY May 21, 23:30 UTCMay 22, 06:00 UTC6h 30m
2026-05-21 DJT300 MXP → EWR May 21, 10:55 UTCMay 21, 19:45 UTC8h 50m
2026-05-20 DJT301 EWR → MXP May 20, 01:55 UTCMay 20, 09:40 UTC7h 46m
2026-05-19 DJT100 ORY → EWR May 19, 09:15 UTCMay 19, 17:20 UTC8h 5m
2026-05-18 DJT101 EWR → ORY May 18, 23:25 UTCMay 19, 06:20 UTC6h 55m
2026-05-18 DJT100 ORY → EWR May 18, 08:45 UTCMay 18, 16:35 UTC7h 50m
2026-05-17 DJT101 EWR → ORY May 17, 23:25 UTCMay 18, 06:20 UTC6h 55m
2026-05-17 DJT104 ORY → EWR May 17, 13:15 UTCMay 17, 21:40 UTC8h 25m
2026-05-17 DJT104 ORY → EWR May 17, 10:45 UTCMay 17, 11:55 UTC1h 10m
2026-05-17 DJT105 ORY → NCE May 17, 07:35 UTCMay 17, 08:45 UTC1h 10m
2026-05-16 DJT105 ORY → NCE May 16, 23:15 UTCMay 17, 06:15 UTC7h 0m
2026-05-16 DJT100 ORY → EWR May 16, 08:46 UTCMay 16, 16:50 UTC8h 5m
2026-05-15 DJT101 EWR → ORY May 15, 23:15 UTCMay 16, 06:10 UTC6h 56m
2026-05-15 DJT100 ORY → EWR May 15, 08:30 UTCMay 15, 16:35 UTC8h 4m
2026-05-14 DJT101 EWR → ORY May 14, 23:25 UTCMay 15, 06:25 UTC7h 0m
2026-05-14 DJT100 ORY → EWR May 14, 08:45 UTCMay 14, 17:05 UTC8h 20m
2026-05-13 DJT101 EWR → ORY May 13, 23:15 UTCMay 14, 06:25 UTC7h 10m
2026-05-13 DJT100 ORY → EWR May 13, 08:45 UTCMay 13, 16:40 UTC7h 55m
2026-05-12 DJT101 EWR → ORY May 12, 23:15 UTCMay 13, 06:30 UTC7h 15m
2026-05-12 DJT104 ORY → EWR May 12, 13:25 UTCMay 12, 21:35 UTC8h 10m
2026-05-12 DJT104 ORY → EWR May 12, 11:05 UTCMay 12, 12:15 UTC1h 10m
2026-05-12 DJT105 ORY → NCE May 12, 07:30 UTCMay 12, 08:45 UTC1h 15m
2026-05-12 DJT105 ORY → NCE May 12, 04:25 UTCMay 12, 06:10 UTC1h 45m
2026-05-11 DJT100 ORY → EWR May 11, 08:45 UTCMay 11, 16:55 UTC8h 10m
2026-05-10 DJT101 EWR → ORY May 10, 23:15 UTCMay 11, 06:20 UTC7h 5m
2026-05-10 DJT104 ORY → EWR May 10, 13:19 UTCMay 10, 21:10 UTC7h 50m
2026-05-10 DJT104 ORY → EWR May 10, 10:55 UTCMay 10, 11:55 UTC1h 0m
2026-05-10 DJT105 ORY → NCE May 10, 07:55 UTCMay 10, 09:05 UTC1h 10m
2026-05-09 DJT105 ORY → NCE May 9, 23:09 UTCMay 10, 06:30 UTC7h 20m
2026-05-09 DJT100 ORY → EWR May 9, 08:45 UTCMay 9, 16:40 UTC7h 55m
2026-05-08 DJT101 EWR → ORY May 8, 23:00 UTCMay 9, 06:20 UTC7h 20m
2026-05-08 DJT100 ORY → EWR May 8, 08:34 UTCMay 8, 16:50 UTC8h 15m

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

Mode-S 398699 frequently asked

What is Mode-S code 398699?
398699 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HBUZ.
Where is Mode-S 398699 registered?
Mode-S code 398699 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 398699 broadcasting right now?
Yes. Mode-S 398699 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 398699, octal 16303231, decimal 3,770,009.
What flights does 398699 operate?
Mode-S 398699 has broadcast 10 distinct callsigns, including DJT100, DJT101, DJT104, DJT105, DJT301.