Apparatus

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sensors Mode-S transponder

407992

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
407992
Octal
20074622
Decimal
4,225,426
Country
GB
Tail
G-STBM
Type
B77W
Broadcasting now · callsign BAW173A · 32,600 ft
Flights observed
203
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Current position

407992 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 407992 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
BAW6B - 13 2026-07-12
BAW15K - 13 2026-07-12
BAW116 - 12 2026-07-13
BAW28K - 11 2026-07-11
BAW14K - 11 2026-07-11
BAW11 British Airways 11 2026-06-03
BAW97A - 10 2026-07-02
BAW33K - 10 2026-07-10
BAW196E - 10 2026-07-03
BAW12 British Airways 10 2026-06-04
BAW49 - 7 2026-07-09
BAW48Q - 7 2026-07-10
BAW28F - 7 2026-07-08
BAW21B - 7 2026-07-07
BAW173A - 7 2026-07-14
BAW9SW British Airways 6 2026-05-02
BAW8DS - 6 2026-07-05
BAW40F - 6 2026-07-13
BAW283 British Airways 6 2026-07-05
BAW180 - 6 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BAW173A - Jul 14, 11:25 UTCJul 14, 16:30 UTC5h 5m
2026-07-13 BAW40F - Jul 13, 23:00 UTCJul 14, 05:20 UTC6h 20m
2026-07-13 BAW173A LHR → JFK Jul 13, 11:20 UTCJul 13, 18:05 UTC6h 45m
2026-07-13 BAW116 JFK → LHR Jul 13, 01:30 UTCJul 13, 07:55 UTC6h 25m
2026-07-12 BAW15K LHR → JFK Jul 12, 16:10 UTCJul 12, 22:50 UTC6h 40m
2026-07-12 BAW6B - Jul 12, 03:20 UTCJul 12, 12:55 UTC9h 35m
2026-07-11 BAW28K - Jul 11, 14:20 UTCJul 12, 01:00 UTC10h 40m
2026-07-11 BAW14K JFK → LHR Jul 11, 02:55 UTCJul 11, 08:55 UTC6h 0m
2026-07-10 BAW33K - Jul 10, 16:30 UTCJul 10, 23:25 UTC6h 55m
2026-07-10 BAW48Q BFI → LHR Jul 10, 03:55 UTCJul 10, 12:25 UTC8h 30m
2026-07-09 BAW49 - Jul 9, 16:10 UTCJul 10, 01:20 UTC9h 10m
2026-07-09 BAW6B - Jul 9, 02:55 UTCJul 9, 12:35 UTC9h 40m
2026-07-08 BAW28K - Jul 8, 14:15 UTCJul 9, 00:35 UTC10h 20m
2026-07-08 BAW28F - Jul 8, 00:30 UTCJul 8, 10:15 UTC9h 45m
2026-07-07 BAW21B - Jul 7, 11:05 UTCJul 7, 21:40 UTC10h 35m
2026-07-06 BAW11J JFK → LHR Jul 6, 23:30 UTCJul 7, 05:40 UTC6h 10m
2026-07-06 BAW181 LHR → EWR Jul 6, 12:10 UTCJul 6, 20:05 UTC7h 55m
2026-07-05 BAW8DS - Jul 5, 23:20 UTCJul 6, 09:10 UTC9h 50m
2026-07-05 BAW283 LHR → LAX Jul 5, 10:00 UTCJul 5, 20:30 UTC10h 30m
2026-07-04 BAW180 JFK → LHR Jul 4, 23:50 UTCJul 5, 05:50 UTC6h 0m
2026-07-04 BAW04A - Jul 4, 12:45 UTCJul 4, 20:00 UTC7h 15m
2026-07-04 BAW116 JFK → LHR Jul 4, 01:45 UTCJul 4, 08:00 UTC6h 15m
2026-07-03 BAW15K LHR → JFK Jul 3, 15:05 UTCJul 3, 22:15 UTC7h 10m
2026-07-03 BAW196E - Jul 3, 02:55 UTCJul 3, 11:25 UTC8h 30m
2026-07-02 BAW97A - Jul 2, 14:35 UTCJul 3, 00:25 UTC9h 50m
2026-07-02 BAW14K JFK → LHR Jul 2, 02:15 UTCJul 2, 08:25 UTC6h 10m
2026-07-01 BAW33K LHR → JFK Jul 1, 16:05 UTCJul 1, 23:10 UTC7h 5m
2026-07-01 BAW6B SFO → LHR Jul 1, 03:05 UTCJul 1, 12:20 UTC9h 15m
2026-06-30 BAW28K LHR → SFO Jun 30, 14:40 UTCJul 1, 00:45 UTC10h 5m
2026-06-30 BAW28F - Jun 30, 00:39 UTCJun 30, 10:20 UTC9h 41m
2026-06-29 BAW21B - Jun 29, 11:20 UTCJun 29, 21:30 UTC10h 10m
2026-06-28 BAW212 BOS → LHR Jun 28, 23:44 UTCJun 29, 05:24 UTC5h 40m
2026-06-28 BAW213 LHR → BOS Jun 28, 13:49 UTCJun 28, 20:45 UTC6h 55m
2026-06-27 BAW8DS - Jun 27, 23:55 UTCJun 28, 09:34 UTC9h 40m
2026-06-27 BAW283 LHR → LAX Jun 27, 10:40 UTCJun 27, 21:19 UTC10h 40m
2026-06-25 BAW180 - Jun 25, 23:49 UTCJun 26, 06:00 UTC6h 10m
2026-06-25 BAW04A - Jun 25, 12:54 UTCJun 25, 20:05 UTC7h 10m
2026-06-25 BAW29C IAD → LHR Jun 25, 03:10 UTCJun 25, 09:40 UTC6h 30m
2026-06-24 BAW293 - Jun 24, 22:29 UTCJun 25, 00:44 UTC2h 15m
2026-06-24 BAW293 - Jun 24, 17:05 UTCJun 24, 18:25 UTC1h 20m
2026-06-24 BAW196E - Jun 24, 02:24 UTCJun 24, 10:49 UTC8h 25m
2026-06-23 BAW97A - Jun 23, 14:29 UTCJun 23, 23:55 UTC9h 25m
2026-06-23 BAW14K JFK → LHR Jun 23, 02:24 UTCJun 23, 08:35 UTC6h 10m
2026-06-22 BAW33K LHR → JFK Jun 22, 16:20 UTCJun 22, 23:24 UTC7h 5m
2026-06-21 BAW40F - Jun 21, 23:05 UTCJun 22, 05:15 UTC6h 10m
2026-06-21 BAW173A LHR → JFK Jun 21, 11:20 UTCJun 21, 18:14 UTC6h 55m
2026-06-21 BAW116 JFK → LHR Jun 21, 00:59 UTCJun 21, 06:55 UTC5h 55m
2026-06-20 BAW15K LHR → JFK Jun 20, 14:59 UTCJun 20, 22:05 UTC7h 5m
2026-06-19 BAW298 - Jun 19, 01:15 UTCJun 19, 08:29 UTC7h 15m
2026-06-18 BAW299 - Jun 18, 12:40 UTCJun 18, 20:20 UTC7h 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-STBM page for operator, model, and routing details .

Mode-S 407992 frequently asked

What is Mode-S code 407992?
407992 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-STBM.
Where is Mode-S 407992 registered?
Mode-S code 407992 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 407992 broadcasting right now?
Yes. Mode-S 407992 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407992, octal 20074622, decimal 4,225,426.
What flights does 407992 operate?
Mode-S 407992 has broadcast 20 distinct callsigns, including BAW6B, BAW15K, BAW116, BAW28K, BAW14K.