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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 Jul 26, 20:50 UTC
Flights observed
484
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 20:50 UTC

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
BAW78H - 7 2026-06-27
BAW729 - 7 2026-06-28
BAW35R - 7 2026-07-14
BAW86LG - 6 2026-07-04
BAW807K - 6 2026-07-04
BAW851 - 5 2026-06-21
BAW850T - 5 2026-06-21
BAW789 British Airways 5 2026-06-23
BAW788 British Airways 5 2026-06-23
BAW351 - 5 2026-07-14
BAW895 British Airways 4 2026-07-26
BAW894 British Airways 4 2026-07-26
BAW867 British Airways 4 2026-07-25
BAW866H British Airways 4 2026-07-25
BAW853S - 4 2026-07-15
BAW852 - 4 2026-07-15
BAW7YT - 4 2026-07-11
BAW72J - 4 2026-06-19
BAW725 British Airways 4 2026-06-19
BAW593K British Airways 4 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BAW895 KEF → LHR Jul 26, 19:40 UTCJul 26, 20:50 UTC1h 10m
2026-07-26 BAW894 LHR → DBV Jul 26, 17:50 UTCJul 26, 18:50 UTC1h 0m
2026-07-26 BAW359 LYS → LHR Jul 26, 14:05 UTCJul 26, 16:05 UTC2h 0m
2026-07-26 BAW358 LHR → LYS Jul 26, 10:30 UTCJul 26, 12:25 UTC1h 55m
2026-07-26 BAW871 BUD → LHR Jul 26, 05:35 UTCJul 26, 08:00 UTC2h 26m
2026-07-25 BAW870 LHR → BUD Jul 25, 20:05 UTCJul 25, 22:05 UTC2h 0m
2026-07-25 BAW867 BUD → LHR Jul 25, 16:35 UTCJul 25, 18:40 UTC2h 5m
2026-07-25 BAW866H LHR → BUD Jul 25, 12:00 UTCJul 25, 14:00 UTC2h 0m
2026-07-25 BAW417 LUX → LHR Jul 25, 09:05 UTCJul 25, 10:05 UTC1h 0m
2026-07-25 BAW416 LHR → LUX Jul 25, 06:20 UTCJul 25, 07:15 UTC55m
2026-07-24 BAW309 CDG → LHR Jul 24, 18:35 UTCJul 24, 19:20 UTC45m
2026-07-24 BAW308 LHR → CDG Jul 24, 16:45 UTCJul 24, 17:25 UTC40m
2026-07-24 BAW43XP AMS → LHR Jul 24, 14:25 UTCJul 24, 15:05 UTC40m
2026-07-24 BAW3ET - Jul 24, 12:10 UTCJul 24, 12:50 UTC40m
2026-07-24 BAW903 FRA → LHR Jul 24, 08:50 UTCJul 24, 10:10 UTC1h 20m
2026-07-24 BAW902N LHR → FRA Jul 24, 06:15 UTCJul 24, 07:20 UTC1h 5m
2026-07-23 BAW579V VCE → LHR Jul 23, 17:45 UTCJul 23, 19:15 UTC1h 30m
2026-07-23 BAW578 - Jul 23, 15:20 UTCJul 23, 16:45 UTC1h 25m
2026-07-23 BAW305 - Jul 23, 12:45 UTCJul 23, 13:25 UTC40m
2026-07-23 BAW3VH - Jul 23, 10:30 UTCJul 23, 11:15 UTC45m
2026-07-23 BAW591 VCE → LHR Jul 23, 07:10 UTCJul 23, 08:45 UTC1h 35m
2026-07-22 BAW590 LHR → MXP Jul 22, 21:15 UTCJul 22, 22:45 UTC1h 30m
2026-07-22 SHT5T - Jul 22, 18:40 UTCJul 22, 19:35 UTC55m
2026-07-22 SHT4F - Jul 22, 16:50 UTCJul 22, 17:40 UTC50m
2026-07-22 BAW965 HAM → LHR Jul 22, 13:15 UTCJul 22, 14:40 UTC1h 25m
2026-07-22 BAW964H LHR → HAM Jul 22, 11:25 UTCJul 22, 11:35 UTC10m
2026-07-21 BAW544K - Jul 21, 20:15 UTCJul 21, 21:55 UTC1h 40m
2026-07-21 BAW58XP MXP → LHR Jul 21, 17:00 UTCJul 21, 18:40 UTC1h 40m
2026-07-21 BAW586M - Jul 21, 15:55 UTCJul 21, 16:45 UTC50m
2026-07-21 BAW586M - Jul 21, 14:15 UTCJul 21, 15:40 UTC1h 25m
2026-07-21 BAW843 WAW → LHR Jul 21, 10:10 UTCJul 21, 12:15 UTC2h 5m
2026-07-21 BAW42PB LHR → WAW Jul 21, 06:55 UTCJul 21, 09:00 UTC2h 5m
2026-07-20 BAW7PI BSL → LHR Jul 20, 19:45 UTCJul 20, 21:00 UTC1h 15m
2026-07-20 BAW762 - Jul 20, 16:35 UTCJul 20, 17:55 UTC1h 20m
2026-07-20 BAW965 - Jul 20, 13:25 UTCJul 20, 14:35 UTC1h 10m
2026-07-20 BAW964H LHR → HAM Jul 20, 10:35 UTCJul 20, 11:45 UTC1h 10m
2026-07-20 BAW591 VCE → LHR Jul 20, 06:10 UTCJul 20, 07:45 UTC1h 35m
2026-07-19 BAW590 LHR → MXP Jul 19, 21:15 UTCJul 19, 22:45 UTC1h 30m
2026-07-19 BAW73B GVA → LHR Jul 19, 18:30 UTCJul 19, 19:45 UTC1h 15m
2026-07-19 BAW752B LHR → GVA Jul 19, 15:50 UTCJul 19, 16:55 UTC1h 5m
2026-07-19 SHT21B - Jul 19, 13:10 UTCJul 19, 14:05 UTC55m
2026-07-19 SHT22A LHR → GCI Jul 19, 11:25 UTCJul 19, 12:00 UTC35m
2026-07-19 BAW757A BSL → LHR Jul 19, 05:50 UTCJul 19, 07:10 UTC1h 20m
2026-07-18 BAW756 - Jul 18, 20:00 UTCJul 18, 21:05 UTC1h 5m
2026-07-18 BAW495 - Jul 18, 16:20 UTCJul 18, 18:20 UTC2h 0m
2026-07-18 BAW494 - Jul 18, 12:50 UTCJul 18, 14:50 UTC2h 0m
2026-07-18 BAW385 - Jul 18, 09:25 UTCJul 18, 10:10 UTC45m
2026-07-18 BAW384 LHR → CAI Jul 18, 07:20 UTCJul 18, 08:00 UTC40m
2026-07-17 BAW777C ARN → LHR Jul 17, 20:25 UTCJul 17, 22:25 UTC2h 0m
2026-07-17 BAW776F - Jul 17, 17:15 UTCJul 17, 19:09 UTC1h 55m

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 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 400B83, octal 20005603, decimal 4,197,251.
What flights does 400B83 operate?
Mode-S 400B83 has broadcast 20 distinct callsigns, including BAW78H, BAW729, BAW35R, BAW86LG, BAW807K.