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 BAW26V · 37,000 ft
Flights observed
82
Distinct callsigns
20
Country
GB
Last broadcast
3h ago

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
BAW20R British Airways 9 2026-05-22
BAW2PD British Airways 7 2026-05-22
BAW8K British Airways 4 2026-05-19
BAW81V British Airways 4 2026-05-07
BAW4EA British Airways 4 2026-05-13
BAW37J British Airways 4 2026-05-25
BAW26E British Airways 4 2026-05-07
BAW193 British Airways 4 2026-05-18
BAW18A British Airways 4 2026-05-26
BAW99 British Airways 3 2026-05-23
BAW98T British Airways 3 2026-05-24
BAW71K British Airways 3 2026-05-29
BAW299 British Airways 3 2026-05-21
BAW298 British Airways 3 2026-05-22
BAW75X British Airways 2 2026-05-12
BAW74X British Airways 2 2026-05-10
BAW5EA British Airways 2 2026-04-23
BAW5CA British Airways 2 2026-05-07
BAW53 British Airways 2 2026-05-13
BAW49N British Airways 2 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW71K LHR → PDX May 29, 15:15 UTCMay 30, 00:45 UTC9h 30m
2026-05-29 BAW26V PDX → LHR May 29, 02:50 UTCMay 29, 11:45 UTC8h 55m
2026-05-28 BAW71K LHR → PDX May 28, 15:35 UTCMay 29, 00:45 UTC9h 10m
2026-05-28 BAW224U MSY → LHR May 28, 03:10 UTCMay 28, 11:45 UTC8h 35m
2026-05-27 BAW225Y LHR → MSY May 27, 15:40 UTCMay 28, 00:45 UTC9h 5m
2026-05-27 BAW26V PDX → LHR May 27, 02:59 UTCMay 27, 12:05 UTC9h 6m
2026-05-26 BAW71K LHR → PDX May 26, 15:24 UTCMay 27, 00:55 UTC9h 30m
2026-05-26 BAW18A JFK → LHR May 26, 03:00 UTCMay 26, 09:29 UTC6h 30m
2026-05-25 BAW37J LHR → JFK May 25, 17:10 UTCMay 26, 00:09 UTC7h 0m
2026-05-25 BAW34N MIA → LHR May 25, 03:05 UTCMay 25, 11:15 UTC8h 10m
2026-05-24 BAW5E LHR → MIA May 24, 15:10 UTCMay 24, 23:46 UTC8h 36m
2026-05-24 BAW98T YYZ → LHR May 24, 02:25 UTCMay 24, 08:45 UTC6h 20m
2026-05-23 BAW99 LHR → YYZ May 23, 16:50 UTCMay 24, 00:00 UTC7h 11m
2026-05-22 BAW20R ORD → LHR May 22, 22:45 UTCMay 23, 05:40 UTC6h 54m
2026-05-22 BAW2PD LHR → ORD May 22, 11:20 UTCMay 22, 18:55 UTC7h 36m
2026-05-22 BAW298 ORD → LHR May 22, 00:45 UTCMay 22, 07:35 UTC6h 50m
2026-05-21 BAW299 LHR → ORD May 21, 12:40 UTCMay 21, 20:35 UTC7h 55m
2026-05-21 BAW9EW YUL → LHR May 21, 04:15 UTCMay 21, 09:50 UTC5h 35m
2026-05-20 BAW6NC LHR → YUL May 20, 19:20 UTCMay 21, 02:05 UTC6h 45m
2026-05-20 BAW18A JFK → LHR May 20, 03:30 UTCMay 20, 09:55 UTC6h 26m
2026-05-19 BAW37J LHR → JFK May 19, 16:55 UTCMay 19, 23:40 UTC6h 45m
2026-05-19 BAW8K DFW → LHR May 19, 01:05 UTCMay 19, 09:30 UTC8h 25m
2026-05-18 BAW193 LHR → DFW May 18, 12:30 UTCMay 18, 21:40 UTC9h 9m
2026-05-15 BAW8K DFW → LHR May 15, 01:15 UTCMay 15, 09:40 UTC8h 25m
2026-05-14 BAW193 LHR → DFW May 14, 12:30 UTCMay 14, 21:30 UTC9h 0m
2026-05-13 BAW4EA SEA → LHR May 13, 21:35 UTCMay 14, 05:40 UTC8h 5m
2026-05-13 BAW53 LHR → SEA May 13, 09:45 UTCMay 13, 19:00 UTC9h 15m
2026-05-12 BAW75X LHR → LOS May 12, 11:45 UTCMay 13, 04:10 UTC16h 25m
2026-05-12 BAW4EA SEA → LHR May 12, 05:40 UTCMay 12, 07:00 UTC1h 20m
2026-05-11 BAW53 LHR → SEA May 11, 11:00 UTCMay 11, 20:10 UTC9h 10m
2026-05-10 BAW74X LOS → LHR May 10, 11:45 UTCMay 11, 04:05 UTC16h 20m
2026-05-08 BAW74X LOS → LHR May 8, 12:25 UTCMay 9, 04:15 UTC15h 50m
2026-05-07 BAW81V IAH → LHR May 7, 20:50 UTCMay 8, 05:09 UTC8h 20m
2026-05-07 BAW26E LHR → IAH May 7, 08:40 UTCMay 7, 18:25 UTC9h 45m
2026-05-07 BAW5CA YYZ → LHR May 7, 00:05 UTCMay 7, 05:10 UTC5h 5m
2026-05-06 BAW5CA YYZ → LHR May 6, 22:40 UTCMay 7, 00:00 UTC1h 20m
2026-05-06 BAW9ZY LHR → YYZ May 6, 12:35 UTCMay 6, 19:55 UTC7h 19m
2026-05-06 BAW98T YYZ → LHR May 6, 02:10 UTCMay 6, 08:35 UTC6h 25m
2026-05-05 BAW99 LHR → YYZ May 5, 16:35 UTCMay 5, 23:35 UTC7h 0m
2026-05-04 BAW75X LHR → LOS May 4, 11:50 UTCMay 5, 04:15 UTC16h 26m
2026-05-04 BAW49N EWR → LHR May 4, 01:40 UTCMay 4, 08:10 UTC6h 30m
2026-05-03 BAW189 LHR → EWR May 3, 16:00 UTCMay 3, 22:54 UTC6h 55m
2026-05-03 BAW18A JFK → LHR May 3, 03:00 UTCMay 3, 09:15 UTC6h 14m
2026-05-02 BAW37J LHR → JFK May 2, 16:50 UTCMay 2, 23:45 UTC6h 55m
2026-05-02 BAW298 ORD → LHR May 2, 00:30 UTCMay 2, 07:40 UTC7h 11m
2026-05-01 BAW299 LHR → ORD May 1, 13:10 UTCMay 1, 20:50 UTC7h 40m
2026-05-01 BAW49N EWR → LHR May 1, 01:50 UTCMay 1, 08:30 UTC6h 40m
2026-04-30 BAW189 LHR → EWR Apr 30, 16:05 UTCApr 30, 22:55 UTC6h 50m
2026-04-30 BAW98T YYZ → LHR Apr 30, 02:20 UTCApr 30, 09:00 UTC6h 40m
2026-04-29 BAW99 LHR → YYZ Apr 29, 16:55 UTCApr 30, 00:00 UTC7h 4m

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 BAW20R, BAW2PD, BAW8K, BAW81V, BAW4EA.