sensors Mode-S transponder

405455

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUUU · AIRBUS A-320

Hex
405455
Octal
20052125
Decimal
4,215,893
Country
GB
Tail
G-EUUU
Type
A320
No current signal · last broadcast 1h ago
Flights observed
452
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 405455.

Country allocation

The ICAO 24-bit address 405455 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
BAW479 - 5 2026-07-13
SHT7Z - 4 2026-07-06
SHT6C - 4 2026-07-05
SHT3G - 4 2026-06-24
SHT2T - 4 2026-06-23
SHT1481 - 4 2026-07-06
SHT1480 - 4 2026-07-06
BAW87PC British Airways 4 2026-05-17
BAW669R British Airways 4 2026-06-09
BAW668R British Airways 4 2026-06-09
BAW61XM British Airways 4 2026-05-18
SHT5U - 3 2026-07-07
SHT4D - 3 2026-07-07
BAW865 British Airways 3 2026-05-30
BAW864 British Airways 3 2026-05-30
BAW863Z British Airways 3 2026-04-21
BAW862U British Airways 3 2026-04-21
BAW5DW - 3 2026-06-19
BAW5B - 3 2026-07-07
BAW581X - 3 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SHT8B LHR → EDI Jul 15, 05:55 UTCJul 15, 06:50 UTC55m
2026-07-14 BAW485G BCN → LHR Jul 14, 19:45 UTCJul 14, 21:30 UTC1h 45m
2026-07-14 BAW484C - Jul 14, 16:55 UTCJul 14, 18:40 UTC1h 45m
2026-07-14 BAW585 MXP → LHR Jul 14, 13:20 UTCJul 14, 14:55 UTC1h 35m
2026-07-14 BAW584 - Jul 14, 10:05 UTCJul 14, 11:25 UTC1h 20m
2026-07-14 BAW1DL - Jul 14, 05:40 UTCJul 14, 07:20 UTC1h 40m
2026-07-13 BAW94DL - Jul 13, 20:15 UTCJul 13, 21:25 UTC1h 10m
2026-07-13 BAW479 BCN → LHR Jul 13, 16:20 UTCJul 13, 18:15 UTC1h 55m
2026-07-13 BAW47E LHR → BCN Jul 13, 13:15 UTCJul 13, 15:00 UTC1h 45m
2026-07-13 BAW87AM BER → LHR Jul 13, 09:15 UTCJul 13, 10:45 UTC1h 30m
2026-07-13 BAW986G - Jul 13, 06:30 UTCJul 13, 07:50 UTC1h 20m
2026-07-12 BAW579V LIN → LHR Jul 12, 18:30 UTCJul 12, 20:10 UTC1h 40m
2026-07-12 BAW578 - Jul 12, 16:05 UTCJul 12, 17:25 UTC1h 20m
2026-07-12 BAW921 DUS → LHR Jul 12, 12:40 UTCJul 12, 13:45 UTC1h 5m
2026-07-12 BAW920U LHR → DUS Jul 12, 10:15 UTCJul 12, 11:05 UTC50m
2026-07-12 BAW563 - Jul 12, 05:20 UTCJul 12, 07:31 UTC2h 10m
2026-07-11 BAW562 - Jul 11, 19:50 UTCJul 11, 21:50 UTC2h 0m
2026-07-11 SHT3A MAN → LHR Jul 11, 17:15 UTCJul 11, 17:45 UTC30m
2026-07-11 SHT2J LHR → MAN Jul 11, 14:45 UTCJul 11, 15:20 UTC35m
2026-07-11 BAW947L - Jul 11, 10:55 UTCJul 11, 13:15 UTC2h 20m
2026-07-11 BAW946 - Jul 11, 06:35 UTCJul 11, 08:30 UTC1h 55m
2026-07-10 BAW617 PSA → LHR Jul 10, 19:50 UTCJul 10, 21:40 UTC1h 50m
2026-07-10 BAW616 LHR → PSA Jul 10, 17:00 UTCJul 10, 18:45 UTC1h 45m
2026-07-10 BAW43XP - Jul 10, 14:10 UTCJul 10, 15:00 UTC50m
2026-07-10 BAW3ET LHR → AMS Jul 10, 12:15 UTCJul 10, 12:55 UTC40m
2026-07-10 BAW919 DUS → LHR Jul 10, 09:40 UTCJul 10, 10:50 UTC1h 10m
2026-07-10 BAW918 - Jul 10, 07:25 UTCJul 10, 08:25 UTC1h 0m
2026-07-09 BAW995 - Jul 9, 18:20 UTCJul 9, 19:45 UTC1h 25m
2026-07-09 BAW994 - Jul 9, 15:45 UTCJul 9, 17:15 UTC1h 30m
2026-07-09 BAW573 LIN → LHR Jul 9, 12:40 UTCJul 9, 14:20 UTC1h 40m
2026-07-09 BAW7LN LHR → LIN Jul 9, 09:45 UTCJul 9, 11:15 UTC1h 30m
2026-07-09 BAW315 - Jul 9, 06:30 UTCJul 9, 07:20 UTC50m
2026-07-08 BAW314S - Jul 8, 21:05 UTCJul 8, 21:45 UTC40m
2026-07-08 BAW739 ZRH → LHR Jul 8, 17:10 UTCJul 8, 18:30 UTC1h 20m
2026-07-08 BAW73NA - Jul 8, 13:35 UTCJul 8, 14:50 UTC1h 15m
2026-07-08 BAW547 - Jul 8, 09:55 UTCJul 8, 12:05 UTC2h 10m
2026-07-08 BAW5PQ - Jul 8, 06:30 UTCJul 8, 08:25 UTC1h 55m
2026-07-07 SHT19Q - Jul 7, 20:05 UTCJul 7, 21:05 UTC1h 0m
2026-07-07 SHT18H - Jul 7, 18:05 UTCJul 7, 19:10 UTC1h 5m
2026-07-07 SHT5U - Jul 7, 15:40 UTCJul 7, 16:30 UTC50m
2026-07-07 SHT4D - Jul 7, 13:35 UTCJul 7, 14:25 UTC50m
2026-07-07 BAW541A - Jul 7, 10:10 UTCJul 7, 12:05 UTC1h 55m
2026-07-07 BAW5B - Jul 7, 07:10 UTCJul 7, 08:45 UTC1h 35m
2026-07-06 BAW7PI - Jul 6, 19:40 UTCJul 6, 20:50 UTC1h 10m
2026-07-06 BAW762 - Jul 6, 15:40 UTCJul 6, 16:50 UTC1h 10m
2026-07-06 SHT7Z - Jul 6, 12:50 UTCJul 6, 13:45 UTC55m
2026-07-06 SHT1480 - Jul 6, 10:20 UTCJul 6, 11:25 UTC1h 5m
2026-07-06 SHT1481 - Jul 6, 06:50 UTCJul 6, 08:00 UTC1h 10m
2026-07-05 SHT6C - Jul 5, 17:45 UTCJul 5, 18:45 UTC1h 0m
2026-07-05 BAW331 NCE → LHR Jul 5, 14:15 UTCJul 5, 15:55 UTC1h 40m

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

Mode-S 405455 frequently asked

What is Mode-S code 405455?
405455 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUUU.
Where is Mode-S 405455 registered?
Mode-S code 405455 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 405455 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 405455, octal 20052125, decimal 4,215,893.
What flights does 405455 operate?
Mode-S 405455 has broadcast 20 distinct callsigns, including BAW479, SHT7Z, SHT6C, SHT3G, SHT2T.