sensors Mode-S transponder

40688E

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-ZBJA · BOEING 787-8 Dreamliner

Hex
40688E
Octal
20064216
Decimal
4,221,070
Country
GB
Tail
G-ZBJA
Type
B788
No current signal · last broadcast 4h ago
Flights observed
77
Distinct callsigns
20
Country
GB
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 40688E.

Country allocation

The ICAO 24-bit address 40688E 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
2026-05-30 BAW35 LHR → MAA May 30, 12:45 UTCMay 30, 17:05 UTC4h 20m
2026-05-30 BAW70Q PIT → LHR May 30, 01:55 UTCMay 30, 09:00 UTC7h 5m
2026-05-29 BAW171 LHR → PIT May 29, 16:35 UTCMay 29, 23:30 UTC6h 55m
2026-05-28 BAW70Q PIT → LHR May 28, 02:15 UTCMay 28, 09:10 UTC6h 55m
2026-05-27 BAW171 LHR → PIT May 27, 16:20 UTCMay 27, 23:55 UTC7h 35m
2026-05-26 BAW276 HYD → LHR May 26, 17:35 UTCMay 27, 12:50 UTC19h 15m
2026-05-26 BAW276 HYD → LHR May 26, 15:45 UTCMay 27, 12:50 UTC21h 6m
2026-05-25 BAW276 HYD → LHR May 25, 17:35 UTCMay 26, 12:24 UTC18h 50m
2026-05-25 BAW276 HYD → LHR May 25, 15:35 UTCMay 26, 12:24 UTC20h 50m
2026-05-25 BAW277 LHR → HYD May 25, 15:05 UTCMay 26, 12:24 UTC21h 19m
2026-05-24 BAW36 MAA → LHR May 24, 15:50 UTCMay 25, 11:00 UTC19h 10m
2026-05-24 BAW36 MAA → LHR May 24, 13:35 UTCMay 25, 11:00 UTC21h 25m
2026-05-24 BAW36 MAA → LHR May 24, 12:05 UTCMay 25, 11:00 UTC22h 55m
2026-05-24 BAW9EW YUL → LHR May 24, 03:05 UTCMay 24, 08:15 UTC5h 10m
2026-05-24 BAW9EW YUL → LHR May 24, 02:15 UTCMay 24, 03:00 UTC45m
2026-05-23 BAW6NC LHR → YUL May 23, 17:35 UTCMay 23, 23:55 UTC6h 21m
2026-05-23 BAW136 LHR → BOM May 23, 03:50 UTCMay 23, 12:45 UTC8h 55m
2026-05-22 BAW137 ROB → FNA May 22, 16:10 UTCMay 23, 00:05 UTC7h 55m
2026-05-21 BAW276 HYD → LHR May 21, 17:35 UTCMay 22, 12:40 UTC19h 5m
2026-05-21 BAW276 HYD → LHR May 21, 15:35 UTCMay 22, 12:40 UTC21h 5m
2026-05-21 BAW276 HYD → LHR May 21, 15:10 UTCMay 22, 12:40 UTC21h 30m
2026-05-21 BAW220 LHR → CHS May 21, 03:40 UTCMay 21, 10:45 UTC7h 5m
2026-05-20 BAW221 CHS → LHR May 20, 16:10 UTCMay 21, 00:40 UTC8h 30m
2026-05-19 BAW36 MAA → LHR May 19, 15:40 UTCMay 20, 11:05 UTC19h 26m
2026-05-19 BAW36 MAA → LHR May 19, 13:35 UTCMay 20, 11:05 UTC21h 31m
2026-05-19 BAW36 MAA → LHR May 19, 12:10 UTCMay 20, 11:05 UTC22h 56m
2026-05-19 BAW98T YYZ → LHR May 19, 02:20 UTCMay 19, 08:55 UTC6h 35m
2026-05-18 BAW99 LHR → YYZ May 18, 16:55 UTCMay 18, 23:55 UTC6h 59m
2026-05-13 BAW5CA YYZ → LHR May 13, 23:55 UTCMay 14, 06:25 UTC6h 30m
2026-05-13 BAW9ZY LHR → YYZ May 13, 14:30 UTCMay 13, 21:35 UTC7h 5m
2026-05-13 BAW98T YYZ → LHR May 13, 02:25 UTCMay 13, 09:05 UTC6h 40m
2026-05-12 BAW99 LHR → YYZ May 12, 16:45 UTCMay 13, 00:00 UTC7h 15m
2026-05-11 BAW70Q PIT → LHR May 11, 16:20 UTCMay 12, 08:45 UTC16h 26m
2026-05-11 BAW186 LHR → EWR May 11, 12:20 UTCMay 11, 13:35 UTC1h 15m
2026-05-11 BAW186 LHR → EWR May 11, 05:10 UTCMay 11, 08:55 UTC3h 45m
2026-05-10 BAW187 LHR → EWR May 10, 15:45 UTCMay 11, 01:25 UTC9h 40m
2026-05-10 BAW70Q PIT → LHR May 10, 02:00 UTCMay 10, 08:50 UTC6h 50m
2026-05-09 BAW171 LHR → PIT May 9, 16:05 UTCMay 9, 23:25 UTC7h 20m
2026-05-08 BAW70Q PIT → LHR May 8, 01:59 UTCMay 8, 08:40 UTC6h 40m
2026-05-07 BAW171 LHR → PIT May 7, 21:45 UTCMay 7, 23:39 UTC1h 55m
2026-05-07 BAW171 LHR → PIT May 7, 16:10 UTCMay 7, 21:40 UTC5h 30m
2026-05-06 BAW36 MAA → LHR May 6, 15:50 UTCMay 7, 11:00 UTC19h 10m
2026-05-06 BAW36 MAA → LHR May 6, 13:35 UTCMay 7, 11:00 UTC21h 25m
2026-05-06 BAW36 MAA → LHR May 6, 12:05 UTCMay 7, 11:00 UTC22h 55m
2026-05-05 BAW9EW YUL → LHR May 5, 02:20 UTCMay 5, 08:25 UTC6h 5m
2026-05-04 BAW6NC LHR → YUL May 4, 22:50 UTCMay 5, 00:05 UTC1h 15m
2026-05-04 BAW6NC LHR → YUL May 4, 17:50 UTCMay 4, 19:05 UTC1h 16m
2026-05-04 BAW256 DEL → LHR May 4, 05:25 UTCMay 4, 14:20 UTC8h 55m
2026-05-03 BAW257 LHR → DEL May 3, 18:05 UTCMay 4, 02:00 UTC7h 55m
2026-05-03 BAW36 MAA → LHR May 3, 03:45 UTCMay 3, 14:15 UTC10h 30m

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

Mode-S 40688E frequently asked

What is Mode-S code 40688E?
40688E is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-ZBJA.
Where is Mode-S 40688E registered?
Mode-S code 40688E 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 40688E broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40688E, octal 20064216, decimal 4,221,070.
What flights does 40688E operate?
Mode-S 40688E has broadcast 20 distinct callsigns, including BAW36, BAW136, BAW276, BAW70Q, BAW171.