Apparatus

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sensors Mode-S transponder

407993

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-STBN · BOEING 777-300ER

Hex
407993
Octal
20074623
Decimal
4,225,427
Country
GB
Tail
G-STBN
Type
B77W
No current signal · last broadcast 15h ago
Flights observed
62
Distinct callsigns
20
Country
GB
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 407993.

Country allocation

The ICAO 24-bit address 407993 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
BAW9SW British Airways 5 2026-05-04
BAW15K British Airways 5 2026-05-19
BAW116 British Airways 5 2026-05-20
BAW8DS British Airways 4 2026-05-22
BAW82P British Airways 4 2026-05-03
BAW283 British Airways 4 2026-05-22
BAW14K British Airways 4 2026-05-18
BAW12 British Airways 3 2026-05-21
BAW11 British Airways 3 2026-05-20
BAW97A British Airways 2 2026-05-28
BAW28F British Airways 2 2026-05-19
BAW21B British Airways 2 2026-05-18
BAW196E British Airways 2 2026-05-29
BAW9175 British Airways 1 2026-04-18
BAW9170 British Airways 1 2026-04-30
BAW6B British Airways 1 2026-05-05
BAW51B British Airways 1 2026-05-25
BAW50G British Airways 1 2026-05-24
BAW49 British Airways 1 2026-05-16
BAW48Q British Airways 1 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW196E IAH → LHR May 29, 05:20 UTCMay 29, 14:15 UTC8h 55m
2026-05-28 BAW97A LHR → IAH May 28, 18:00 UTCMay 29, 03:00 UTC9h 0m
2026-05-25 BAW51B BOS → LHR May 25, 02:30 UTCMay 25, 08:30 UTC6h 0m
2026-05-24 BAW50G LHR → BOS May 24, 17:25 UTCMay 24, 23:46 UTC6h 21m
2026-05-24 BAW120 CVG → LHR May 24, 02:00 UTCMay 24, 09:00 UTC7h 0m
2026-05-23 BAW21V LHR → CVG May 23, 15:40 UTCMay 23, 23:35 UTC7h 55m
2026-05-22 BAW8DS LAX → LHR May 22, 22:55 UTCMay 23, 08:50 UTC9h 54m
2026-05-22 BAW283 LHR → LAX May 22, 10:00 UTCMay 22, 20:10 UTC10h 10m
2026-05-21 BAW12 SIN → LHR May 21, 15:45 UTCMay 22, 05:05 UTC13h 20m
2026-05-20 BAW11 LHR → SIN May 20, 19:30 UTCMay 21, 08:05 UTC12h 35m
2026-05-20 BAW116 JFK → LHR May 20, 01:35 UTCMay 20, 08:05 UTC6h 31m
2026-05-19 BAW15K LHR → JFK May 19, 15:00 UTCMay 19, 21:50 UTC6h 50m
2026-05-19 BAW28F LAX → LHR May 19, 01:15 UTCMay 19, 10:45 UTC9h 30m
2026-05-18 BAW21B LHR → LAX May 18, 11:40 UTCMay 18, 22:25 UTC10h 44m
2026-05-18 BAW14K JFK → LHR May 18, 02:15 UTCMay 18, 08:35 UTC6h 20m
2026-05-17 BAW33K LHR → JFK May 17, 16:10 UTCMay 17, 23:25 UTC7h 15m
2026-05-17 BAW48Q SEA → LHR May 17, 03:40 UTCMay 17, 12:25 UTC8h 45m
2026-05-16 BAW49 LHR → SEA May 16, 16:00 UTCMay 17, 00:45 UTC8h 44m
2026-05-15 BAW11J JFK → LHR May 15, 23:20 UTCMay 16, 05:30 UTC6h 10m
2026-05-15 BAW181 LHR → EWR May 15, 12:20 UTCMay 15, 19:15 UTC6h 54m
2026-05-14 BAW8DS LAX → LHR May 14, 23:10 UTCMay 15, 08:50 UTC9h 40m
2026-05-14 BAW283 LHR → LAX May 14, 10:05 UTCMay 14, 20:45 UTC10h 40m
2026-05-13 BAW12 SIN → LHR May 13, 16:00 UTCMay 14, 05:25 UTC13h 25m
2026-05-12 BAW11 LHR → SIN May 12, 18:45 UTCMay 13, 06:50 UTC12h 5m
2026-05-12 BAW29C IAD → LHR May 12, 02:50 UTCMay 12, 09:15 UTC6h 25m
2026-05-11 BAW293 LHR → IAD May 11, 16:50 UTCMay 11, 17:45 UTC55m
2026-05-10 BAW8DS LAX → LHR May 10, 23:05 UTCMay 11, 09:10 UTC10h 5m
2026-05-10 BAW283 LHR → LAX May 10, 10:00 UTCMay 10, 20:05 UTC10h 5m
2026-05-09 BAW180 EWR → LHR May 9, 23:35 UTCMay 10, 06:00 UTC6h 25m
2026-05-09 BAW04A JFK → LHR May 9, 13:05 UTCMay 9, 20:00 UTC6h 55m
2026-05-09 BAW116 JFK → LHR May 9, 00:35 UTCMay 9, 07:10 UTC6h 35m
2026-05-08 BAW15K LHR → JFK May 8, 14:45 UTCMay 8, 21:45 UTC7h 0m
2026-05-08 BAW196E IAH → LHR May 8, 02:59 UTCMay 8, 11:19 UTC8h 20m
2026-05-07 BAW97A LHR → IAH May 7, 14:15 UTCMay 8, 00:20 UTC10h 5m
2026-05-07 BAW28F LAX → LHR May 7, 00:25 UTCMay 7, 10:15 UTC9h 50m
2026-05-06 BAW21B LHR → LAX May 6, 11:10 UTCMay 6, 21:15 UTC10h 4m
2026-05-05 BAW6B SFO → LHR May 5, 06:45 UTCMay 5, 16:45 UTC10h 0m
2026-05-04 BAW28K LHR → SFO May 4, 18:10 UTCMay 5, 04:20 UTC10h 11m
2026-05-04 BAW9SW SAN → LHR May 4, 03:05 UTCMay 4, 12:55 UTC9h 50m
2026-05-03 BAW82P LHR → SAN May 3, 13:50 UTCMay 4, 00:30 UTC10h 40m
2026-05-02 BAW8DS LAX → LHR May 2, 23:05 UTCMay 3, 09:00 UTC9h 54m
2026-05-02 BAW283 LHR → LAX May 2, 10:10 UTCMay 2, 20:35 UTC10h 25m
2026-05-01 BAW12 SIN → LHR May 1, 16:15 UTCMay 2, 05:25 UTC13h 10m
2026-04-30 BAW11 LHR → SIN Apr 30, 18:55 UTCMay 1, 07:25 UTC12h 30m
2026-04-30 BAW9170 CWL → LHR Apr 30, 14:40 UTCApr 30, 15:10 UTC30m
2026-04-18 BAW9175 CWL → LHR Apr 18, 12:10 UTCApr 18, 12:40 UTC30m
2026-04-16 BAW116 JFK → LHR Apr 16, 05:45 UTCApr 16, 07:05 UTC1h 20m
2026-04-16 BAW116 JFK → LHR Apr 16, 01:10 UTCApr 16, 02:30 UTC1h 20m
2026-04-16 BAW116 JFK → LHR Apr 16, 00:55 UTCApr 16, 01:05 UTC10m
2026-04-15 BAW15K LHR → JFK Apr 15, 21:05 UTCApr 15, 22:10 UTC1h 5m

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

Mode-S 407993 frequently asked

What is Mode-S code 407993?
407993 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-STBN.
Where is Mode-S 407993 registered?
Mode-S code 407993 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 407993 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407993, octal 20074623, decimal 4,225,427.
What flights does 407993 operate?
Mode-S 407993 has broadcast 20 distinct callsigns, including BAW9SW, BAW15K, BAW116, BAW8DS, BAW82P.