Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4080BF

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-ZBLK · BOEING 787-10 Dreamliner

Hex
4080BF
Octal
20100277
Decimal
4,227,263
Country
GB
Tail
G-ZBLK
Type
B78X
No current signal · last broadcast 3d ago
Flights observed
96
Distinct callsigns
20
Country
GB
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 4080BF.

Country allocation

The ICAO 24-bit address 4080BF 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
BAW4EA British Airways 9 2026-05-18
BAW5EA British Airways 8 2026-05-01
BAW2PD British Airways 8 2026-05-21
BAW20R British Airways 8 2026-05-21
BAW99 British Airways 5 2026-04-26
BAW74X British Airways 5 2026-05-16
BAW37J British Airways 5 2026-05-13
BAW18A British Airways 5 2026-05-14
BAW98T British Airways 4 2026-04-27
BAW81V British Airways 4 2026-05-09
BAW26E British Airways 4 2026-05-09
BAW49N British Airways 3 2026-05-16
BAW299 British Airways 3 2026-05-24
BAW298 British Airways 3 2026-05-25
BAW225Y British Airways 3 2026-05-14
BAW224U British Airways 3 2026-05-15
BAW189 British Airways 3 2026-05-15
BAW9EW British Airways 2 2026-05-26
BAW8K British Airways 2 2026-05-13
BAW75X British Airways 2 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-26 BAW9EW YUL → LHR May 26, 06:59 UTCMay 26, 08:34 UTC1h 35m
2026-05-26 BAW9EW YUL → LHR May 26, 02:29 UTCMay 26, 03:35 UTC1h 5m
2026-05-25 BAW6NC LHR → YUL May 25, 17:35 UTCMay 26, 00:04 UTC6h 30m
2026-05-25 BAW298 ORD → LHR May 25, 01:55 UTCMay 25, 07:55 UTC6h 0m
2026-05-24 BAW299 LHR → ORD May 24, 12:55 UTCMay 24, 21:00 UTC8h 5m
2026-05-23 BAW298 ORD → LHR May 23, 00:25 UTCMay 23, 07:25 UTC6h 59m
2026-05-22 BAW299 LHR → ORD May 22, 12:35 UTCMay 22, 20:20 UTC7h 45m
2026-05-21 BAW20R ORD → LHR May 21, 22:30 UTCMay 22, 05:15 UTC6h 45m
2026-05-21 BAW2PD LHR → ORD May 21, 10:45 UTCMay 21, 18:35 UTC7h 50m
2026-05-19 BAW20R ORD → LHR May 19, 22:25 UTCMay 20, 05:20 UTC6h 56m
2026-05-19 BAW2PD LHR → ORD May 19, 10:45 UTCMay 19, 18:35 UTC7h 50m
2026-05-18 BAW4EA SEA → LHR May 18, 20:50 UTCMay 19, 05:30 UTC8h 40m
2026-05-18 BAW53 LHR → SEA May 18, 09:15 UTCMay 18, 18:10 UTC8h 55m
2026-05-17 BAW4EA SEA → LHR May 17, 21:01 UTCMay 18, 05:35 UTC8h 35m
2026-05-17 BAW53 LHR → SEA May 17, 09:25 UTCMay 17, 18:10 UTC8h 45m
2026-05-16 BAW74X LOS → LHR May 16, 11:51 UTCMay 17, 04:15 UTC16h 25m
2026-05-16 BAW49N EWR → LHR May 16, 02:40 UTCMay 16, 08:36 UTC5h 56m
2026-05-15 BAW189 LHR → EWR May 15, 17:20 UTCMay 16, 00:20 UTC7h 0m
2026-05-15 BAW224U MSY → LHR May 15, 05:55 UTCMay 15, 13:50 UTC7h 55m
2026-05-14 BAW225Y LHR → MSY May 14, 18:35 UTCMay 15, 03:40 UTC9h 5m
2026-05-14 BAW18A JFK → LHR May 14, 05:40 UTCMay 14, 11:50 UTC6h 10m
2026-05-13 BAW37J LHR → JFK May 13, 19:50 UTCMay 14, 02:55 UTC7h 5m
2026-05-13 BAW8K DFW → LHR May 13, 01:10 UTCMay 13, 09:50 UTC8h 40m
2026-05-12 BAW193 LHR → DFW May 12, 12:20 UTCMay 12, 22:01 UTC9h 40m
2026-05-12 BAW49N EWR → LHR May 12, 02:45 UTCMay 12, 08:05 UTC5h 20m
2026-05-11 BAW189 LHR → EWR May 11, 16:05 UTCMay 11, 22:35 UTC6h 30m
2026-05-11 BAW224U MSY → LHR May 11, 04:50 UTCMay 11, 12:55 UTC8h 5m
2026-05-10 BAW225Y LHR → MSY May 10, 15:29 UTCMay 11, 00:45 UTC9h 15m
2026-05-09 BAW81V IAH → LHR May 9, 20:40 UTCMay 10, 05:14 UTC8h 35m
2026-05-09 BAW26E LHR → IAH May 9, 08:30 UTCMay 9, 18:00 UTC9h 30m
2026-05-08 BAW5CA YYZ → LHR May 8, 22:55 UTCMay 9, 05:20 UTC6h 25m
2026-05-08 BAW9ZY LHR → YYZ May 8, 12:44 UTCMay 8, 19:55 UTC7h 10m
2026-05-08 BAW18A JFK → LHR May 8, 03:14 UTCMay 8, 09:09 UTC5h 55m
2026-05-07 BAW37J LHR → JFK May 7, 16:55 UTCMay 7, 23:59 UTC7h 4m
2026-05-07 BAW224U MSY → LHR May 7, 03:45 UTCMay 7, 11:55 UTC8h 10m
2026-05-06 BAW225Y LHR → MSY May 6, 15:40 UTCMay 7, 01:35 UTC9h 54m
2026-05-06 BAW8K DFW → LHR May 6, 01:05 UTCMay 6, 09:20 UTC8h 15m
2026-05-05 BAW193 LHR → DFW May 5, 12:20 UTCMay 5, 21:35 UTC9h 15m
2026-05-02 BAW81V IAH → LHR May 2, 20:45 UTCMay 3, 05:15 UTC8h 29m
2026-05-02 BAW26E LHR → IAH May 2, 08:40 UTCMay 2, 18:05 UTC9h 25m
2026-05-01 BAW4EA SEA → LHR May 1, 20:50 UTCMay 2, 05:25 UTC8h 35m
2026-05-01 BAW5EA LHR → SEA May 1, 09:30 UTCMay 1, 18:45 UTC9h 15m
2026-04-30 BAW4EA SEA → LHR Apr 30, 20:40 UTCMay 1, 05:20 UTC8h 40m
2026-04-30 BAW5EA LHR → SEA Apr 30, 09:25 UTCApr 30, 18:25 UTC9h 0m
2026-04-29 BAW4EA SEA → LHR Apr 29, 20:40 UTCApr 30, 05:35 UTC8h 54m
2026-04-29 BAW5EA LHR → SEA Apr 29, 09:10 UTCApr 29, 18:10 UTC9h 0m
2026-04-28 BAW81V IAH → LHR Apr 28, 20:50 UTCApr 29, 05:30 UTC8h 40m
2026-04-28 BAW26E LHR → IAH Apr 28, 08:25 UTCApr 28, 18:00 UTC9h 35m
2026-04-27 BAW98T YYZ → LHR Apr 27, 02:30 UTCApr 27, 09:20 UTC6h 50m
2026-04-26 BAW99 LHR → YYZ Apr 26, 16:35 UTCApr 26, 23:20 UTC6h 45m

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

Mode-S 4080BF frequently asked

What is Mode-S code 4080BF?
4080BF is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-ZBLK.
Where is Mode-S 4080BF registered?
Mode-S code 4080BF 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 4080BF broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4080BF, octal 20100277, decimal 4,227,263.
What flights does 4080BF operate?
Mode-S 4080BF has broadcast 20 distinct callsigns, including BAW4EA, BAW5EA, BAW2PD, BAW20R, BAW99.