Apparatus

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sensors Mode-S transponder

407979

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
407979
Octal
20074571
Decimal
4,225,401
Country
GB
Tail
G-ZBLC
Type
B78X
Broadcasting now · callsign BAW71K · 38,000 ft
Flights observed
193
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 15:55 UTC

Current position

407979 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 407979 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
BAW5E British Airways 12 2026-07-26
BAW37J - 11 2026-07-15
BAW34N British Airways 11 2026-07-22
BAW18A - 11 2026-07-16
BAW20R - 10 2026-06-29
BAW71K - 8 2026-07-13
BAW2PD - 8 2026-06-29
BAW26V - 8 2026-07-14
BAW9ZY British Airways 7 2026-07-23
BAW5CA British Airways 7 2026-07-06
BAW49N British Airways 7 2026-07-25
BAW225Y - 7 2026-07-12
BAW224U - 7 2026-07-13
BAW99 British Airways 6 2026-07-25
BAW8K - 6 2026-07-06
BAW81V - 6 2026-06-24
BAW4EA - 6 2026-06-28
BAW26E - 6 2026-06-24
BAW193 - 6 2026-07-05
BAW189 British Airways 6 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BAW5E LHR → MIA Jul 26, 15:35 UTCJul 26, 15:55 UTC20m
2026-07-26 BAW5E LHR → MIA Jul 26, 15:00 UTCJul 26, 15:30 UTC30m
2026-07-26 BAW98T YYZ → LHR Jul 26, 02:25 UTCJul 26, 08:40 UTC6h 16m
2026-07-25 BAW99 LHR → YYZ Jul 25, 16:40 UTCJul 25, 23:35 UTC6h 55m
2026-07-25 BAW49N EWR → LHR Jul 25, 04:30 UTCJul 25, 10:30 UTC6h 0m
2026-07-25 BAW9601 IAH → LHR Jul 25, 02:00 UTCJul 25, 02:35 UTC35m
2026-07-24 BAW5WB LHR → SEA Jul 24, 00:50 UTCJul 24, 09:30 UTC8h 40m
2026-07-23 BAW9ZY LHR → YYZ Jul 23, 12:55 UTCJul 23, 19:55 UTC7h 0m
2026-07-23 BAW49N EWR → LHR Jul 23, 01:45 UTCJul 23, 08:15 UTC6h 30m
2026-07-22 BAW189 LHR → EWR Jul 22, 16:20 UTCJul 22, 23:15 UTC6h 55m
2026-07-22 BAW34N MIA → LHR Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-22 BAW34N MIA → LHR Jul 22, 02:55 UTCJul 22, 10:25 UTC7h 30m
2026-07-21 BAW5E LHR → MIA Jul 21, 15:10 UTCJul 21, 23:25 UTC8h 15m
2026-07-21 BAW34N MIA → LHR Jul 21, 03:10 UTCJul 21, 11:20 UTC8h 10m
2026-07-20 BAW5E LHR → MIA Jul 20, 15:25 UTCJul 20, 23:35 UTC8h 10m
2026-07-20 BAW34N MIA → LHR Jul 20, 04:20 UTCJul 20, 11:15 UTC6h 55m
2026-07-20 BAW34N MIA → LHR Jul 20, 02:50 UTCJul 20, 04:15 UTC1h 25m
2026-07-19 BAW5E - Jul 19, 16:00 UTCJul 19, 23:45 UTC7h 45m
2026-07-19 BAW5E - Jul 19, 15:20 UTCJul 19, 15:55 UTC35m
2026-07-19 BAW34N MIA → LHR Jul 19, 03:05 UTCJul 19, 11:25 UTC8h 20m
2026-07-18 BAW5E - Jul 18, 15:10 UTCJul 18, 23:35 UTC8h 25m
2026-07-18 BAW9EW YUL → LHR Jul 18, 03:05 UTCJul 18, 09:10 UTC6h 5m
2026-07-17 BAW6NC - Jul 17, 17:40 UTCJul 17, 23:55 UTC6h 15m
2026-07-17 BAW51B BOS → LHR Jul 17, 02:45 UTCJul 17, 08:45 UTC6h 0m
2026-07-16 BAW50G - Jul 16, 17:05 UTCJul 17, 00:04 UTC7h 0m
2026-07-16 BAW18A JFK → LHR Jul 16, 03:50 UTCJul 16, 10:10 UTC6h 20m
2026-07-15 BAW37J - Jul 15, 18:20 UTCJul 16, 01:05 UTC6h 45m
2026-07-15 BAW34N - Jul 15, 03:10 UTCJul 15, 11:25 UTC8h 15m
2026-07-14 BAW5E LHR → MIA Jul 14, 15:10 UTCJul 14, 23:30 UTC8h 19m
2026-07-14 BAW26V PDX → LHR Jul 14, 03:10 UTCJul 14, 11:55 UTC8h 45m
2026-07-13 BAW71K - Jul 13, 15:35 UTCJul 14, 01:10 UTC9h 35m
2026-07-13 BAW224U MSY → LHR Jul 13, 03:25 UTCJul 13, 12:00 UTC8h 35m
2026-07-12 BAW225Y LHR → MSY Jul 12, 16:25 UTCJul 13, 01:15 UTC8h 50m
2026-07-12 BAW18A JFK → LHR Jul 12, 04:25 UTCJul 12, 10:35 UTC6h 10m
2026-07-11 BAW37J - Jul 11, 18:45 UTCJul 12, 01:35 UTC6h 50m
2026-07-11 BAW18A JFK → LHR Jul 11, 03:40 UTCJul 11, 09:50 UTC6h 10m
2026-07-10 BAW37J - Jul 10, 17:45 UTCJul 11, 00:50 UTC7h 5m
2026-07-06 BAW5CA YYZ → LHR Jul 6, 22:35 UTCJul 7, 05:05 UTC6h 30m
2026-07-06 BAW9ZY - Jul 6, 13:05 UTCJul 6, 20:10 UTC7h 5m
2026-07-06 BAW8K DFW → LHR Jul 6, 01:05 UTCJul 6, 09:25 UTC8h 20m
2026-07-05 BAW193 - Jul 5, 12:20 UTCJul 5, 21:50 UTC9h 30m
2026-07-05 BAW49N EWR → LHR Jul 5, 02:25 UTCJul 5, 08:35 UTC6h 10m
2026-07-04 BAW189 - Jul 4, 16:40 UTCJul 5, 00:00 UTC7h 20m
2026-07-04 BAW224U MSY → LHR Jul 4, 03:05 UTCJul 4, 11:15 UTC8h 10m
2026-07-03 BAW225Y LHR → MSY Jul 3, 21:20 UTCJul 4, 00:50 UTC3h 30m
2026-07-03 BAW225Y LHR → MSY Jul 3, 15:35 UTCJul 3, 21:15 UTC5h 40m
2026-07-03 BAW34N - Jul 3, 02:55 UTCJul 3, 10:50 UTC7h 55m
2026-07-02 BAW5E - Jul 2, 15:10 UTCJul 3, 00:00 UTC8h 50m
2026-07-01 BAW8K DFW → LHR Jul 1, 02:45 UTCJul 1, 11:10 UTC8h 25m
2026-06-30 BAW193 - Jun 30, 14:40 UTCJul 1, 00:00 UTC9h 20m

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

Mode-S 407979 frequently asked

What is Mode-S code 407979?
407979 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-ZBLC.
Where is Mode-S 407979 registered?
Mode-S code 407979 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 407979 broadcasting right now?
Yes. Mode-S 407979 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407979, octal 20074571, decimal 4,225,401.
What flights does 407979 operate?
Mode-S 407979 has broadcast 20 distinct callsigns, including BAW5E, BAW37J, BAW34N, BAW18A, BAW20R.