Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4005BC

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-VIID · BOEING 777-200

Hex
4005BC
Octal
20002674
Decimal
4,195,772
Country
GB
Tail
G-VIID
Type
B772
No current signal · last broadcast 2h ago
Flights observed
104
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4005BC.

Country allocation

The ICAO 24-bit address 4005BC 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
BAW53M British Airways 10 2026-05-23
BAW25GP British Airways 10 2026-05-22
BAW19N British Airways 10 2026-05-21
BAW252N British Airways 9 2026-05-23
BAW18B British Airways 8 2026-05-22
BAW7TG British Airways 6 2026-05-24
BAW120 British Airways 6 2026-05-26
BAW46EZ British Airways 4 2026-04-15
BAW216 British Airways 4 2026-04-18
BAW176A British Airways 4 2026-05-04
BAW7W British Airways 3 2026-04-17
BAW461 - 3 2026-04-15
BAW23T British Airways 3 2026-05-25
BAW17R British Airways 3 2026-05-03
BAW04A - 3 2026-04-13
BAW255T British Airways 2 2026-05-04
BAW21V British Airways 2 2026-05-25
BAW181 British Airways 2 2026-05-29
BAW11J British Airways 2 2026-05-29
BAW9E British Airways 1 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW11J JFK → LHR May 29, 23:25 UTCMay 30, 05:40 UTC6h 15m
2026-05-29 BAW181 LHR → EWR May 29, 12:00 UTCMay 29, 18:45 UTC6h 46m
2026-05-29 BAW172 JFK → LHR May 29, 01:45 UTCMay 29, 08:25 UTC6h 40m
2026-05-28 BAW7NY LHR → JFK May 28, 09:50 UTCMay 28, 16:40 UTC6h 50m
2026-05-27 BAW40F JFK → LHR May 27, 23:20 UTCMay 28, 05:45 UTC6h 25m
2026-05-27 BAW173A LHR → JFK May 27, 11:05 UTCMay 27, 17:55 UTC6h 50m
2026-05-26 BAW11J JFK → LHR May 26, 23:14 UTCMay 27, 05:45 UTC6h 30m
2026-05-26 BAW181 LHR → EWR May 26, 12:00 UTCMay 26, 18:59 UTC7h 0m
2026-05-26 BAW120 CVG → LHR May 26, 01:24 UTCMay 26, 08:45 UTC7h 20m
2026-05-25 BAW21V LHR → CVG May 25, 15:05 UTCMay 25, 23:19 UTC8h 14m
2026-05-25 BAW23T ATL → LHR May 25, 02:50 UTCMay 25, 10:30 UTC7h 40m
2026-05-24 BAW7TG LHR → ATL May 24, 21:35 UTCMay 24, 23:46 UTC2h 11m
2026-05-24 BAW7TG LHR → ATL May 24, 15:55 UTCMay 24, 21:30 UTC5h 35m
2026-05-23 BAW252N NAS → LHR May 23, 16:35 UTCMay 24, 10:10 UTC17h 35m
2026-05-23 BAW53M LHR → NAS May 23, 09:45 UTCMay 24, 09:00 UTC23h 15m
2026-05-22 BAW25GP BGI → LHR May 22, 11:05 UTCMay 23, 05:10 UTC18h 5m
2026-05-22 BAW25GP BGI → LHR May 22, 10:55 UTCMay 23, 05:10 UTC18h 15m
2026-05-22 BAW18B BDA → LHR May 22, 04:05 UTCMay 22, 05:25 UTC1h 20m
2026-05-21 BAW18B BDA → LHR May 21, 23:10 UTCMay 21, 23:25 UTC15m
2026-05-21 BAW19N LHR → BDA May 21, 20:35 UTCMay 21, 20:50 UTC15m
2026-05-21 BAW19N LHR → BDA May 21, 14:00 UTCMay 21, 15:15 UTC1h 15m
2026-05-20 BAW252N NAS → LHR May 20, 16:15 UTCMay 21, 10:10 UTC17h 55m
2026-05-20 BAW53M LHR → NAS May 20, 09:45 UTCMay 20, 16:35 UTC6h 50m
2026-05-19 BAW18B BDA → LHR May 19, 22:55 UTCMay 20, 05:15 UTC6h 21m
2026-05-19 BAW19N LHR → BDA May 19, 20:25 UTCMay 19, 20:40 UTC15m
2026-05-19 BAW19N LHR → BDA May 19, 13:45 UTCMay 19, 15:00 UTC1h 15m
2026-05-18 BAW252N NAS → LHR May 18, 19:55 UTCMay 19, 10:10 UTC14h 15m
2026-05-18 BAW252N NAS → LHR May 18, 14:50 UTCMay 19, 10:10 UTC19h 19m
2026-05-18 BAW53M LHR → NAS May 18, 09:40 UTCMay 19, 09:00 UTC23h 19m
2026-05-17 BAW25GP BGI → LHR May 17, 11:05 UTCMay 18, 05:10 UTC18h 5m
2026-05-17 BAW25GP BGI → LHR May 17, 10:45 UTCMay 18, 05:10 UTC18h 25m
2026-05-17 BAW18B BDA → LHR May 17, 00:00 UTCMay 17, 06:05 UTC6h 5m
2026-05-16 BAW19N LHR → BDA May 16, 20:45 UTCMay 16, 20:55 UTC10m
2026-05-16 BAW19N LHR → BDA May 16, 13:46 UTCMay 16, 14:55 UTC1h 10m
2026-05-16 BAW23T ATL → LHR May 16, 02:40 UTCMay 16, 10:11 UTC7h 31m
2026-05-15 BAW7TG LHR → ATL May 15, 21:35 UTCMay 16, 00:10 UTC2h 35m
2026-05-15 BAW7TG LHR → ATL May 15, 21:15 UTCMay 15, 21:30 UTC15m
2026-05-15 BAW7TG LHR → ATL May 15, 15:45 UTCMay 15, 17:00 UTC1h 15m
2026-05-15 BAW252N NAS → LHR May 15, 08:40 UTCMay 15, 10:10 UTC1h 30m
2026-05-14 BAW53M LHR → NAS May 14, 09:35 UTCMay 14, 10:31 UTC55m
2026-05-13 BAW25GP BGI → LHR May 13, 11:35 UTCMay 14, 05:40 UTC18h 5m
2026-05-13 BAW18B BDA → LHR May 13, 04:05 UTCMay 13, 05:25 UTC1h 20m
2026-05-12 BAW19N LHR → BDA May 12, 13:40 UTCMay 12, 14:40 UTC1h 0m
2026-05-11 BAW252N NAS → LHR May 11, 19:55 UTCMay 12, 10:05 UTC14h 10m
2026-05-11 BAW53M LHR → NAS May 11, 09:50 UTCMay 12, 09:00 UTC23h 11m
2026-05-10 BAW25GP BGI → LHR May 10, 11:05 UTCMay 11, 05:10 UTC18h 5m
2026-05-10 BAW25GP BGI → LHR May 10, 10:35 UTCMay 11, 05:10 UTC18h 35m
2026-05-09 BAW25GP BGI → LHR May 9, 11:05 UTCMay 10, 05:10 UTC18h 5m
2026-05-09 BAW25GP BGI → LHR May 9, 10:35 UTCMay 10, 05:10 UTC18h 35m
2026-05-08 BAW19N LHR → BDA May 8, 14:00 UTCMay 9, 05:45 UTC15h 45m

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

Mode-S 4005BC frequently asked

What is Mode-S code 4005BC?
4005BC is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VIID.
Where is Mode-S 4005BC registered?
Mode-S code 4005BC 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 4005BC broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4005BC, octal 20002674, decimal 4,195,772.
What flights does 4005BC operate?
Mode-S 4005BC has broadcast 20 distinct callsigns, including BAW53M, BAW25GP, BAW19N, BAW252N, BAW18B.