Apparatus

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sensors Mode-S transponder

400B83

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-DBCE · AIRBUS A-319

Hex
400B83
Octal
20005603
Decimal
4,197,251
Country
GB
Tail
G-DBCE
Type
A319
No current signal · last broadcast 6h ago
Flights observed
192
Distinct callsigns
20
Country
GB
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 400B83.

Country allocation

The ICAO 24-bit address 400B83 falls within the block assigned to United Kingdom (GB) by ICAO Annex 10, Volume III. Every aircraft registered in United Kingdom 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
BAW35R British Airways 5 2026-05-24
BAW789 British Airways 4 2026-05-26
BAW788 British Airways 4 2026-05-26
BAW78H British Airways 3 2026-05-27
BAW729 British Airways 3 2026-05-28
BAW407 British Airways 3 2026-05-25
BAW406 British Airways 3 2026-05-25
BAW351 British Airways 3 2026-05-24
SHT7J - 2 2026-04-16
SHT6K - 2 2026-04-16
SHT17Y - 2 2026-05-17
SHT16C - 2 2026-05-17
GDBCE - 2 2026-04-26
BAW925 British Airways 2 2026-05-10
BAW924 British Airways 2 2026-05-09
BAW873 British Airways 2 2026-05-24
BAW872 British Airways 2 2026-05-24
BAW871 British Airways 2 2026-05-06
BAW870 British Airways 2 2026-05-05
BAW86LG British Airways 2 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BAW817 CPH → LHR May 30, 18:05 UTCMay 30, 19:40 UTC1h 35m
2026-05-30 BAW816 LHR → CPH May 30, 15:25 UTCMay 30, 16:45 UTC1h 20m
2026-05-30 SHT21B - May 30, 12:55 UTCMay 30, 13:30 UTC35m
2026-05-30 SHT22A - May 30, 11:15 UTCMay 30, 11:50 UTC35m
2026-05-30 BAW301 CAI → LHR May 30, 08:55 UTCMay 30, 09:40 UTC45m
2026-05-30 BAW30DG LHR → CDG May 30, 06:40 UTCMay 30, 07:20 UTC40m
2026-05-29 SHT5Q BHD → LHR May 29, 19:30 UTCMay 29, 20:25 UTC55m
2026-05-29 SHT4J - May 29, 17:35 UTCMay 29, 18:25 UTC50m
2026-05-29 BAW433 AMS → LHR May 29, 15:25 UTCMay 29, 16:15 UTC50m
2026-05-29 BAW432 LHR → AMS May 29, 11:00 UTCMay 29, 11:45 UTC45m
2026-05-29 BAW429 AMS → LHR May 29, 08:35 UTCMay 29, 09:25 UTC50m
2026-05-29 BAW428 LHR → AMS May 29, 06:10 UTCMay 29, 06:50 UTC40m
2026-05-28 BAW853S PRG → LHR May 28, 13:05 UTCMay 28, 14:50 UTC1h 45m
2026-05-28 BAW852 LHR → PRG May 28, 10:10 UTCMay 28, 11:40 UTC1h 30m
2026-05-28 BAW729 GVA → LHR May 28, 06:40 UTCMay 28, 08:35 UTC1h 55m
2026-05-27 BAW78H LHR → GVA May 27, 18:35 UTCMay 27, 20:15 UTC1h 40m
2026-05-27 BAW851 WAW → LHR May 27, 09:20 UTCMay 27, 11:05 UTC1h 45m
2026-05-27 BAW850T LHR → WAW May 27, 06:15 UTCMay 27, 07:40 UTC1h 25m
2026-05-26 BAW789 LHR → KGS May 26, 16:55 UTCMay 26, 18:40 UTC1h 45m
2026-05-26 BAW788 LHR → GVA May 26, 14:24 UTCMay 26, 15:54 UTC1h 30m
2026-05-26 BAW863Z PRG → LHR May 26, 09:55 UTCMay 26, 12:10 UTC2h 15m
2026-05-26 BAW862U LHR → PRG May 26, 06:39 UTCMay 26, 08:45 UTC2h 5m
2026-05-25 BAW725 GVA → LHR May 25, 17:30 UTCMay 25, 19:20 UTC1h 50m
2026-05-25 BAW72J LHR → GVA May 25, 14:45 UTCMay 25, 16:30 UTC1h 45m
2026-05-25 BAW407 CAI → LHR May 25, 10:20 UTCMay 25, 12:20 UTC2h 0m
2026-05-25 BAW406 LHR → CAI May 25, 07:10 UTCMay 25, 09:05 UTC1h 55m
2026-05-24 BAW351 NCE → LHR May 24, 19:50 UTCMay 24, 21:15 UTC1h 25m
2026-05-24 BAW35R LHR → MRS May 24, 16:45 UTCMay 24, 18:10 UTC1h 25m
2026-05-24 BAW873 KRK → LHR May 24, 11:20 UTCMay 24, 13:40 UTC2h 20m
2026-05-24 BAW872 LHR → KRK May 24, 08:10 UTCMay 24, 10:20 UTC2h 10m
2026-05-24 BAW859 PRG → LHR May 24, 04:50 UTCMay 24, 06:25 UTC1h 35m
2026-05-23 BAW858V LHR → PRG May 23, 19:15 UTCMay 23, 20:50 UTC1h 35m
2026-05-23 BAW789 LHR → KGS May 23, 16:05 UTCMay 23, 17:45 UTC1h 40m
2026-05-23 BAW788 LHR → GVA May 23, 13:40 UTCMay 23, 15:10 UTC1h 30m
2026-05-23 BAW533 AGP → LHR May 23, 09:45 UTCMay 23, 11:40 UTC1h 55m
2026-05-23 BAW532 LHR → AGP May 23, 06:35 UTCMay 23, 08:30 UTC1h 55m
2026-05-22 BAW375 TLS → LHR May 22, 19:45 UTCMay 22, 21:10 UTC1h 25m
2026-05-22 BAW374 LHR → TLS May 22, 17:25 UTCMay 22, 18:45 UTC1h 20m
2026-05-22 BAW865 BUD → LHR May 22, 13:50 UTCMay 22, 16:10 UTC2h 20m
2026-05-22 BAW864 LHR → BUD May 22, 10:15 UTCMay 22, 12:30 UTC2h 15m
2026-05-22 BAW785 LHR → ARN May 22, 06:05 UTCMay 22, 08:05 UTC2h 0m
2026-05-21 BAW784 LHR → ARN May 21, 19:45 UTCMay 21, 21:30 UTC1h 45m
2026-05-21 BAW789 LHR → KGS May 21, 16:25 UTCMay 21, 18:05 UTC1h 40m
2026-05-21 BAW788 LHR → GVA May 21, 13:55 UTCMay 21, 15:20 UTC1h 25m
2026-05-21 BAW781 ARN → LHR May 21, 09:50 UTCMay 21, 11:45 UTC1h 55m
2026-05-21 BAW780H LHR → OSL May 21, 06:50 UTCMay 21, 08:40 UTC1h 50m
2026-05-20 BAW317 CDG → LHR May 20, 19:30 UTCMay 20, 20:15 UTC45m
2026-05-20 BAW16UP LHR → CDG May 20, 17:20 UTCMay 20, 18:10 UTC50m
2026-05-20 BAW43XP AMS → LHR May 20, 14:20 UTCMay 20, 15:10 UTC50m
2026-05-20 BAW3ET LHR → AMS May 20, 12:20 UTCMay 20, 13:05 UTC45m

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 G-DBCE page for operator, model, and routing details .

Mode-S 400B83 frequently asked

What is Mode-S code 400B83?
400B83 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-DBCE.
Where is Mode-S 400B83 registered?
Mode-S code 400B83 is allocated to United Kingdom (GB). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 400B83 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 400B83, octal 20005603, decimal 4,197,251.
What flights does 400B83 operate?
Mode-S 400B83 has broadcast 20 distinct callsigns, including BAW35R, BAW789, BAW788, BAW78H, BAW729.