Apparatus

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sensors Mode-S transponder

4074E2

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
4074E2
Octal
20072342
Decimal
4,224,226
Country
GB
Tail
G-ZBJJ
Type
B788
Broadcasting now · callsign BAW36 · 39,975 ft
Flights observed
202
Distinct callsigns
20
Country
GB
Last broadcast
Jul 24, 11:25 UTC

Current position

4074E2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4074E2 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
BAW276 British Airways 21 2026-05-27
BAW36 - 15 2026-07-05
BAW6NC - 13 2026-07-03
BAW9EW - 12 2026-07-04
BAW256 - 10 2026-07-02
BAW70Q British Airways 9 2026-07-21
BAW187 - 9 2026-07-16
BAW186 British Airways 9 2026-07-17
BAW171 - 9 2026-07-20
BAW118 British Airways 9 2026-07-22
BAW257 - 8 2026-07-01
BAW277 British Airways 7 2026-04-16
BAW139 - 7 2026-07-14
BAW138 - 7 2026-07-14
BAW137 British Airways 7 2026-05-16
BAW119 British Airways 7 2026-07-21
BAW35 - 5 2026-07-04
BAW136 British Airways 5 2026-05-17
BAW131 British Airways 5 2026-06-27
BAW130 British Airways 5 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 BAW224U MSY → LHR Jul 24, 03:20 UTCJul 24, 11:25 UTC8h 5m
2026-07-23 BAW225Y LHR → MSY Jul 23, 15:30 UTCJul 24, 00:35 UTC9h 5m
2026-07-23 BAW220 LHR → CHS Jul 23, 02:45 UTCJul 23, 10:25 UTC7h 40m
2026-07-22 BAW221 CHS → LHR Jul 22, 15:55 UTCJul 23, 00:25 UTC8h 30m
2026-07-22 BAW118 BLR → LHR Jul 22, 04:40 UTCJul 22, 12:00 UTC7h 20m
2026-07-22 BAW118 BLR → LHR Jul 22, 01:55 UTCJul 22, 02:10 UTC15m
2026-07-21 BAW119 LHR → BLR Jul 21, 13:50 UTCJul 21, 23:00 UTC9h 10m
2026-07-21 BAW70Q PIT → LHR Jul 21, 02:00 UTCJul 21, 08:45 UTC6h 45m
2026-07-20 BAW171 - Jul 20, 16:05 UTCJul 20, 23:30 UTC7h 25m
2026-07-20 BAW118 - Jul 20, 01:35 UTCJul 20, 11:45 UTC10h 10m
2026-07-19 BAW119 LHR → BLR Jul 19, 13:40 UTCJul 19, 22:45 UTC9h 5m
2026-07-19 BAW70Q - Jul 19, 02:30 UTCJul 19, 09:05 UTC6h 35m
2026-07-18 BAW171 - Jul 18, 16:10 UTCJul 18, 23:55 UTC7h 45m
2026-07-18 BAW70Q - Jul 18, 02:05 UTCJul 18, 08:55 UTC6h 51m
2026-07-17 BAW171 - Jul 17, 16:15 UTCJul 17, 23:45 UTC7h 30m
2026-07-17 BAW186 LHR → EWR Jul 17, 03:30 UTCJul 17, 12:35 UTC9h 5m
2026-07-16 BAW187 - Jul 16, 15:25 UTCJul 17, 00:55 UTC9h 30m
2026-07-16 BAW70Q - Jul 16, 03:05 UTCJul 16, 09:55 UTC6h 50m
2026-07-15 BAW171 - Jul 15, 16:40 UTCJul 16, 00:00 UTC7h 20m
2026-07-14 BAW138 - Jul 14, 20:40 UTCJul 15, 06:05 UTC9h 24m
2026-07-14 BAW139 - Jul 14, 17:10 UTCJul 14, 17:35 UTC25m
2026-07-14 BAW139 - Jul 14, 09:00 UTCJul 14, 13:30 UTC4h 30m
2026-07-05 BAW36 - Jul 5, 01:00 UTCJul 5, 11:15 UTC10h 15m
2026-07-04 BAW35 - Jul 4, 12:05 UTCJul 4, 19:25 UTC7h 20m
2026-07-04 BAW9EW YUL → LHR Jul 4, 03:05 UTCJul 4, 09:05 UTC6h 0m
2026-07-03 BAW6NC - Jul 3, 17:35 UTCJul 4, 00:10 UTC6h 35m
2026-07-03 BAW9EW YUL → LHR Jul 3, 03:20 UTCJul 3, 09:15 UTC5h 55m
2026-07-02 BAW6NC - Jul 2, 23:50 UTCJul 3, 01:20 UTC1h 30m
2026-07-02 BAW6NC - Jul 2, 17:40 UTCJul 2, 23:40 UTC6h 0m
2026-07-02 BAW256 - Jul 2, 05:00 UTCJul 2, 13:55 UTC8h 55m
2026-07-01 BAW257 - Jul 1, 18:20 UTCJul 2, 02:05 UTC7h 45m
2026-07-01 BAW118 - Jul 1, 01:30 UTCJul 1, 11:30 UTC10h 0m
2026-06-30 BAW119 - Jun 30, 14:00 UTCJun 30, 23:05 UTC9h 5m
2026-06-30 BAW70Q - Jun 30, 02:00 UTCJun 30, 08:50 UTC6h 50m
2026-06-29 BAW171 LHR → PIT Jun 29, 16:39 UTCJun 29, 23:54 UTC7h 15m
2026-06-29 BAW36 - Jun 29, 00:39 UTCJun 29, 10:29 UTC9h 50m
2026-06-28 BAW35 - Jun 28, 12:35 UTCJun 28, 20:19 UTC7h 45m
2026-06-27 BAW130 ABZ → LHR Jun 27, 23:19 UTCJun 28, 08:39 UTC9h 20m
2026-06-27 BAW131 LHR → BLR Jun 27, 20:19 UTCJun 27, 20:34 UTC15m
2026-06-27 BAW131 LHR → BLR Jun 27, 11:20 UTCJun 27, 15:49 UTC4h 30m
2026-06-26 BAW256 - Jun 26, 04:50 UTCJun 26, 13:40 UTC8h 50m
2026-06-25 BAW257 - Jun 25, 18:24 UTCJun 26, 02:05 UTC7h 40m
2026-06-25 BAW118 - Jun 25, 04:54 UTCJun 25, 11:59 UTC7h 5m
2026-06-25 BAW118 - Jun 25, 01:54 UTCJun 25, 03:10 UTC1h 15m
2026-06-24 BAW119 - Jun 24, 14:09 UTCJun 24, 23:34 UTC9h 25m
2026-06-24 BAW220 - Jun 24, 02:45 UTCJun 24, 09:59 UTC7h 15m
2026-06-23 BAW221 - Jun 23, 15:44 UTCJun 24, 00:05 UTC8h 20m
2026-06-23 BAW186 AUS → LHR Jun 23, 03:49 UTCJun 23, 12:25 UTC8h 35m
2026-06-22 BAW187 - Jun 22, 15:35 UTCJun 23, 01:25 UTC9h 50m
2026-06-22 BAW36 - Jun 22, 00:34 UTCJun 22, 11:00 UTC10h 25m

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

Mode-S 4074E2 frequently asked

What is Mode-S code 4074E2?
4074E2 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-ZBJJ.
Where is Mode-S 4074E2 registered?
Mode-S code 4074E2 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 4074E2 broadcasting right now?
Yes. Mode-S 4074E2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4074E2, octal 20072342, decimal 4,224,226.
What flights does 4074E2 operate?
Mode-S 4074E2 has broadcast 20 distinct callsigns, including BAW276, BAW36, BAW6NC, BAW9EW, BAW256.