Apparatus

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sensors Mode-S transponder

40688F

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
40688F
Octal
20064217
Decimal
4,221,071
Country
GB
Tail
G-ZBJB
Type
B788
No current signal · last broadcast 4h ago
Flights observed
115
Distinct callsigns
20
Country
GB
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 40688F.

Country allocation

The ICAO 24-bit address 40688F 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
BAW186 British Airways 9 2026-05-15
BAW187 British Airways 8 2026-05-14
BAW87 British Airways 7 2026-05-28
BAW71K British Airways 7 2026-05-07
BAW26V British Airways 7 2026-05-08
BAW137 British Airways 7 2026-05-29
BAW86 British Airways 6 2026-05-29
BAW136 British Airways 6 2026-05-25
BAW276 British Airways 5 2026-05-17
BAW171 British Airways 5 2026-05-04
BAW9EW British Airways 4 2026-05-13
BAW70Q British Airways 4 2026-05-05
BAW36 British Airways 4 2026-05-27
BAW257 British Airways 4 2026-05-20
BAW256 British Airways 4 2026-05-21
BAW220 British Airways 4 2026-05-28
BAW139 British Airways 4 2026-04-24
BAW6NC British Airways 3 2026-05-12
BAW221 British Airways 3 2026-05-27
BAW138 British Airways 3 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW137 ROB → FNA May 29, 17:10 UTCMay 29, 21:30 UTC4h 20m
2026-05-29 BAW86 YVR → LHR May 29, 01:55 UTCMay 29, 10:40 UTC8h 45m
2026-05-28 BAW87 LHR → YVR May 28, 14:55 UTCMay 28, 23:50 UTC8h 55m
2026-05-28 BAW220 LHR → CHS May 28, 02:50 UTCMay 28, 10:45 UTC7h 55m
2026-05-27 BAW221 CHS → LHR May 27, 16:05 UTCMay 28, 00:10 UTC8h 5m
2026-05-27 BAW36 MAA → LHR May 27, 00:30 UTCMay 27, 10:55 UTC10h 25m
2026-05-26 BAW35 LHR → MAA May 26, 12:10 UTCMay 26, 20:20 UTC8h 10m
2026-05-26 BAW98T YYZ → LHR May 26, 02:19 UTCMay 26, 08:54 UTC6h 35m
2026-05-25 BAW99 LHR → YYZ May 25, 16:45 UTCMay 26, 00:00 UTC7h 15m
2026-05-25 BAW136 LHR → BOM May 25, 03:15 UTCMay 25, 12:10 UTC8h 55m
2026-05-24 BAW137 ROB → FNA May 24, 16:35 UTCMay 24, 23:46 UTC7h 11m
2026-05-24 BAW86 YVR → LHR May 24, 01:00 UTCMay 24, 09:30 UTC8h 30m
2026-05-23 BAW87 LHR → YVR May 23, 13:50 UTCMay 23, 22:55 UTC9h 5m
2026-05-23 BAW220 LHR → CHS May 23, 03:00 UTCMay 23, 10:30 UTC7h 30m
2026-05-22 BAW221 CHS → LHR May 22, 15:45 UTCMay 23, 00:00 UTC8h 15m
2026-05-21 BAW256 DEL → LHR May 21, 04:50 UTCMay 21, 13:35 UTC8h 45m
2026-05-20 BAW257 LHR → DEL May 20, 18:05 UTCMay 21, 02:05 UTC8h 0m
2026-05-20 BAW256 DEL → LHR May 20, 05:00 UTCMay 20, 13:45 UTC8h 45m
2026-05-19 BAW257 LHR → DEL May 19, 18:15 UTCMay 20, 02:05 UTC7h 50m
2026-05-19 BAW256 DEL → LHR May 19, 05:00 UTCMay 19, 13:40 UTC8h 40m
2026-05-18 BAW257 LHR → DEL May 18, 18:25 UTCMay 19, 02:15 UTC7h 49m
2026-05-17 BAW276 HYD → LHR May 17, 17:50 UTCMay 18, 12:15 UTC18h 25m
2026-05-17 BAW276 HYD → LHR May 17, 15:50 UTCMay 18, 12:15 UTC20h 25m
2026-05-17 BAW276 HYD → LHR May 17, 15:15 UTCMay 18, 12:15 UTC21h 0m
2026-05-17 BAW86 YVR → LHR May 17, 00:55 UTCMay 17, 09:35 UTC8h 40m
2026-05-16 BAW87 LHR → YVR May 16, 13:41 UTCMay 16, 22:25 UTC8h 44m
2026-05-16 BAW98T YYZ → LHR May 16, 04:20 UTCMay 16, 10:40 UTC6h 21m
2026-05-15 BAW99 LHR → YYZ May 15, 19:20 UTCMay 16, 02:20 UTC7h 0m
2026-05-15 BAW186 LHR → EWR May 15, 13:45 UTCMay 15, 15:10 UTC1h 24m
2026-05-15 BAW186 LHR → EWR May 15, 06:30 UTCMay 15, 10:40 UTC4h 10m
2026-05-14 BAW187 LHR → EWR May 14, 18:40 UTCMay 15, 04:20 UTC9h 40m
2026-05-13 BAW276 HYD → LHR May 13, 17:50 UTCMay 14, 13:01 UTC19h 10m
2026-05-13 BAW276 HYD → LHR May 13, 16:00 UTCMay 14, 13:01 UTC21h 0m
2026-05-13 BAW9EW YUL → LHR May 13, 02:05 UTCMay 13, 08:20 UTC6h 15m
2026-05-12 BAW6NC LHR → YUL May 12, 17:25 UTCMay 12, 23:55 UTC6h 30m
2026-05-12 BAW256 DEL → LHR May 12, 05:10 UTCMay 12, 14:20 UTC9h 10m
2026-05-11 BAW257 LHR → DEL May 11, 18:30 UTCMay 11, 22:35 UTC4h 4m
2026-05-10 BAW136 LHR → BOM May 10, 03:10 UTCMay 10, 12:10 UTC9h 0m
2026-05-09 BAW137 ROB → FNA May 9, 16:35 UTCMay 10, 00:09 UTC7h 35m
2026-05-09 BAW186 LHR → EWR May 9, 03:40 UTCMay 9, 12:20 UTC8h 40m
2026-05-08 BAW187 LHR → EWR May 8, 15:35 UTCMay 9, 01:25 UTC9h 50m
2026-05-08 BAW26V PDX → LHR May 8, 02:35 UTCMay 8, 11:44 UTC9h 10m
2026-05-07 BAW71K LHR → PDX May 7, 15:10 UTCMay 8, 00:29 UTC9h 20m
2026-05-07 BAW9EW YUL → LHR May 7, 02:40 UTCMay 7, 08:40 UTC6h 0m
2026-05-06 BAW6NC LHR → YUL May 6, 18:15 UTCMay 7, 00:40 UTC6h 25m
2026-05-06 BAW220 LHR → CHS May 6, 09:05 UTCMay 6, 10:25 UTC1h 20m
2026-05-06 BAW220 LHR → CHS May 6, 03:05 UTCMay 6, 05:35 UTC2h 30m
2026-05-05 BAW221 CHS → LHR May 5, 15:50 UTCMay 6, 00:01 UTC8h 10m
2026-05-05 BAW70Q PIT → LHR May 5, 02:20 UTCMay 5, 09:15 UTC6h 55m
2026-05-04 BAW171 LHR → PIT May 4, 16:30 UTCMay 4, 23:40 UTC7h 11m

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

Mode-S 40688F frequently asked

What is Mode-S code 40688F?
40688F is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-ZBJB.
Where is Mode-S 40688F registered?
Mode-S code 40688F 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 40688F 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 40688F, octal 20064217, decimal 4,221,071.
What flights does 40688F operate?
Mode-S 40688F has broadcast 20 distinct callsigns, including BAW186, BAW187, BAW87, BAW71K, BAW26V.