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
No current signal · last broadcast 3h ago
Flights observed
117
Distinct callsigns
20
Country
GB
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 407992.

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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW8DS LAX → LHR May 29, 23:05 UTCMay 30, 09:25 UTC10h 20m
2026-05-29 BAW283 LHR → LAX May 29, 10:05 UTCMay 29, 20:25 UTC10h 20m
2026-05-28 BAW12 SIN → LHR May 28, 16:10 UTCMay 29, 05:55 UTC13h 45m
2026-05-27 BAW11 LHR → SIN May 27, 18:55 UTCMay 28, 07:05 UTC12h 10m
2026-05-26 BAW12 SIN → LHR May 26, 16:00 UTCMay 27, 05:29 UTC13h 30m
2026-05-25 BAW11 LHR → SIN May 25, 19:05 UTCMay 26, 07:19 UTC12h 15m
2026-05-24 BAW40F JFK → LHR May 24, 23:05 UTCMay 25, 05:25 UTC6h 20m
2026-05-24 BAW173A LHR → JFK May 24, 11:05 UTCMay 24, 18:25 UTC7h 20m
2026-05-24 BAW116 JFK → LHR May 24, 01:40 UTCMay 24, 07:45 UTC6h 5m
2026-05-23 BAW15K LHR → JFK May 23, 15:30 UTCMay 23, 22:30 UTC7h 1m
2026-05-23 BAW196E IAH → LHR May 23, 02:40 UTCMay 23, 11:00 UTC8h 20m
2026-05-22 BAW97A LHR → IAH May 22, 14:30 UTCMay 23, 00:20 UTC9h 50m
2026-05-22 BAW14K JFK → LHR May 22, 03:20 UTCMay 22, 09:20 UTC6h 0m
2026-05-21 BAW33K LHR → JFK May 21, 17:45 UTCMay 22, 00:40 UTC6h 55m
2026-05-21 BAW48Q SEA → LHR May 21, 04:20 UTCMay 21, 13:25 UTC9h 5m
2026-05-20 BAW49 LHR → SEA May 20, 16:25 UTCMay 21, 01:50 UTC9h 25m
2026-05-20 BAW6B SFO → LHR May 20, 03:40 UTCMay 20, 13:00 UTC9h 21m
2026-05-19 BAW28K LHR → SFO May 19, 15:15 UTCMay 20, 01:10 UTC9h 55m
2026-05-19 BAW196E IAH → LHR May 19, 03:00 UTCMay 19, 11:30 UTC8h 30m
2026-05-18 BAW97A LHR → IAH May 18, 15:05 UTCMay 19, 00:40 UTC9h 34m
2026-05-17 BAW40F JFK → LHR May 17, 23:15 UTCMay 18, 05:20 UTC6h 5m
2026-05-17 BAW173A LHR → JFK May 17, 11:10 UTCMay 17, 18:10 UTC7h 0m
2026-05-16 BAW12 SIN → LHR May 16, 15:45 UTCMay 17, 05:10 UTC13h 25m
2026-05-15 BAW11 LHR → SIN May 15, 19:20 UTCMay 16, 07:35 UTC12h 16m
2026-05-15 BAW196E IAH → LHR May 15, 02:45 UTCMay 15, 11:25 UTC8h 40m
2026-05-14 BAW97A LHR → IAH May 14, 15:05 UTCMay 15, 00:35 UTC9h 30m
2026-05-14 BAW116 JFK → LHR May 14, 02:35 UTCMay 14, 08:50 UTC6h 15m
2026-05-13 BAW15K LHR → JFK May 13, 16:05 UTCMay 13, 23:15 UTC7h 10m
2026-05-13 BAW196E IAH → LHR May 13, 02:30 UTCMay 13, 11:20 UTC8h 50m
2026-05-12 BAW97A LHR → IAH May 12, 14:15 UTCMay 13, 00:00 UTC9h 45m
2026-05-11 BAW14K JFK → LHR May 11, 16:20 UTCMay 12, 08:15 UTC15h 56m
2026-05-11 BAW116 JFK → LHR May 11, 00:49 UTCMay 11, 07:15 UTC6h 25m
2026-05-10 BAW15K LHR → JFK May 10, 15:09 UTCMay 10, 22:09 UTC7h 0m
2026-05-10 BAW196E IAH → LHR May 10, 02:39 UTCMay 10, 11:15 UTC8h 35m
2026-05-09 BAW97A LHR → IAH May 9, 14:15 UTCMay 10, 00:15 UTC10h 0m
2026-05-09 BAW14K JFK → LHR May 9, 02:50 UTCMay 9, 09:20 UTC6h 30m
2026-05-08 BAW33K LHR → JFK May 8, 17:25 UTCMay 9, 00:30 UTC7h 5m
2026-05-08 BAW48Q SEA → LHR May 8, 03:49 UTCMay 8, 12:34 UTC8h 45m
2026-05-07 BAW49 LHR → SEA May 7, 15:55 UTCMay 8, 00:44 UTC8h 50m
2026-05-07 BAW6B SFO → LHR May 7, 02:50 UTCMay 7, 12:45 UTC9h 55m
2026-05-06 BAW28K LHR → SFO May 6, 13:45 UTCMay 6, 23:55 UTC10h 9m
2026-05-05 BAW8DS LAX → LHR May 5, 23:00 UTCMay 6, 08:40 UTC9h 40m
2026-05-05 BAW283 LHR → LAX May 5, 10:00 UTCMay 5, 20:05 UTC10h 5m
2026-05-04 BAW180 EWR → LHR May 4, 23:35 UTCMay 5, 05:55 UTC6h 20m
2026-05-04 BAW04A JFK → LHR May 4, 13:00 UTCMay 4, 20:00 UTC7h 1m
2026-05-03 BAW180 EWR → LHR May 3, 23:39 UTCMay 4, 06:05 UTC6h 25m
2026-05-03 BAW04A JFK → LHR May 3, 12:40 UTCMay 3, 19:40 UTC7h 0m
2026-05-03 BAW29C IAD → LHR May 3, 02:40 UTCMay 3, 09:20 UTC6h 39m
2026-05-02 BAW293 LHR → IAD May 2, 16:25 UTCMay 2, 23:55 UTC7h 30m
2026-05-02 BAW9SW SAN → LHR May 2, 03:00 UTCMay 2, 13:15 UTC10h 15m

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?
No active broadcast right now. Last signal was 3h ago.
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 BAW11, BAW15K, BAW12, BAW116, BAW97A.