Apparatus

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sensors Mode-S transponder

4007F7

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-YMML · BOEING 777-200

Hex
4007F7
Octal
20003767
Decimal
4,196,343
Country
GB
Tail
G-YMML
Type
B772
No current signal · last broadcast 1h ago
Flights observed
106
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4007F7.

Country allocation

The ICAO 24-bit address 4007F7 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
BAW5VY British Airways 7 2026-05-19
BAW21V British Airways 7 2026-05-17
BAW88C British Airways 6 2026-05-20
BAW134 British Airways 6 2026-05-04
BAW120 British Airways 6 2026-05-18
BAW2LJ British Airways 5 2026-04-21
BAW135 British Airways 5 2026-05-04
BAW51B British Airways 4 2026-04-17
BAW265 British Airways 4 2026-05-24
BAW264 British Airways 4 2026-05-25
BAW248 British Airways 4 2026-05-22
BAW143 British Airways 4 2026-05-23
BAW142 British Airways 4 2026-05-23
BAW7CP British Airways 3 2026-04-26
BAW6AC British Airways 3 2026-04-27
BAW50G British Airways 3 2026-04-16
BAW249 British Airways 3 2026-05-22
BAW22B British Airways 3 2026-04-20
BAW118 British Airways 3 2026-05-17
BAW46EZ British Airways 2 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BAW298 ORD → LHR May 30, 00:25 UTCMay 30, 07:45 UTC7h 20m
2026-05-29 BAW299 LHR → ORD May 29, 12:40 UTCMay 29, 20:35 UTC7h 55m
2026-05-29 BAW98T YYZ → LHR May 29, 02:35 UTCMay 29, 09:40 UTC7h 5m
2026-05-28 BAW99 LHR → YYZ May 28, 17:05 UTCMay 28, 23:50 UTC6h 45m
2026-05-28 BAW9155 LGW → LHR May 28, 12:45 UTCMay 28, 13:00 UTC15m
2026-05-28 BAW38W MCO → LGW May 28, 01:55 UTCMay 28, 09:50 UTC7h 55m
2026-05-27 BAW39D LGW → MCO May 27, 13:55 UTCMay 27, 22:35 UTC8h 40m
2026-05-27 BAW2278 YVR → LGW May 27, 00:30 UTCMay 27, 09:15 UTC8h 45m
2026-05-26 BAW2279 LGW → YVR May 26, 13:00 UTCMay 26, 22:15 UTC9h 15m
2026-05-26 BAW9154 MSY → LHR May 26, 09:40 UTCMay 26, 09:49 UTC10m
2026-05-25 BAW290 LHR → IAD May 25, 23:30 UTCMay 26, 06:20 UTC6h 50m
2026-05-25 BAW291 LHR → SFO May 25, 13:45 UTCMay 25, 21:30 UTC7h 45m
2026-05-25 BAW264 IAD → LHR May 25, 02:00 UTCMay 25, 10:05 UTC8h 5m
2026-05-24 BAW265 LHR → SAN May 24, 11:00 UTCMay 24, 21:40 UTC10h 40m
2026-05-23 BAW142 DEL → LHR May 23, 20:45 UTCMay 24, 05:35 UTC8h 50m
2026-05-23 BAW143 LHR → DEL May 23, 10:00 UTCMay 23, 17:45 UTC7h 45m
2026-05-22 BAW248 GIG → LHR May 22, 19:55 UTCMay 23, 06:40 UTC10h 45m
2026-05-22 BAW248 GIG → LHR May 22, 15:30 UTCMay 22, 17:50 UTC2h 20m
2026-05-22 BAW249 LHR → GIG May 22, 10:20 UTCMay 22, 13:15 UTC2h 55m
2026-05-22 BAW249 LHR → GIG May 22, 08:30 UTCMay 22, 08:40 UTC10m
2026-05-21 BAW249 LHR → GIG May 21, 21:35 UTCMay 22, 07:35 UTC10h 0m
2026-05-21 BAW198 BOM → LHR May 21, 04:30 UTCMay 21, 13:45 UTC9h 15m
2026-05-20 BAW199 LHR → BOM May 20, 17:25 UTCMay 21, 02:25 UTC9h 0m
2026-05-20 BAW88C YVR → LHR May 20, 04:25 UTCMay 20, 13:10 UTC8h 46m
2026-05-19 BAW5VY LHR → YVR May 19, 16:55 UTCMay 20, 01:55 UTC9h 0m
2026-05-19 BAW88C YVR → LHR May 19, 04:20 UTCMay 19, 13:15 UTC8h 55m
2026-05-18 BAW5VY LHR → YVR May 18, 17:15 UTCMay 19, 02:10 UTC8h 54m
2026-05-18 BAW120 CVG → LHR May 18, 01:55 UTCMay 18, 09:20 UTC7h 25m
2026-05-17 BAW21V LHR → CVG May 17, 21:15 UTCMay 17, 23:40 UTC2h 25m
2026-05-17 BAW21V LHR → CVG May 17, 15:40 UTCMay 17, 21:10 UTC5h 30m
2026-05-17 BAW118 BLR → LHR May 17, 02:30 UTCMay 17, 11:55 UTC9h 25m
2026-05-17 BAW118 BLR → LHR May 17, 01:40 UTCMay 17, 01:50 UTC10m
2026-05-16 BAW119 LHR → BLR May 16, 13:35 UTCMay 16, 22:55 UTC9h 20m
2026-05-16 BAW264 IAD → LHR May 16, 00:15 UTCMay 16, 09:56 UTC9h 41m
2026-05-15 BAW265 LHR → SAN May 15, 11:10 UTCMay 15, 21:50 UTC10h 39m
2026-05-14 BAW142 DEL → LHR May 14, 20:45 UTCMay 15, 05:30 UTC8h 45m
2026-05-14 BAW143 LHR → DEL May 14, 09:50 UTCMay 14, 17:50 UTC8h 0m
2026-05-13 BAW142 DEL → LHR May 13, 20:40 UTCMay 14, 05:35 UTC8h 55m
2026-05-13 BAW143 LHR → DEL May 13, 09:50 UTCMay 13, 17:50 UTC8h 0m
2026-05-12 BAW142 DEL → LHR May 12, 20:55 UTCMay 13, 05:50 UTC8h 55m
2026-05-12 BAW143 LHR → DEL May 12, 10:05 UTCMay 12, 17:50 UTC7h 45m
2026-05-04 BAW134 BOM → LHR May 4, 08:50 UTCMay 4, 13:50 UTC5h 0m
2026-05-04 BAW134 BOM → LHR May 4, 04:15 UTCMay 4, 04:29 UTC15m
2026-05-04 BAW135 LHR → BOM May 4, 01:15 UTCMay 4, 01:44 UTC30m
2026-05-03 BAW135 LHR → BOM May 3, 16:55 UTCMay 4, 00:30 UTC7h 35m
2026-05-03 BAW134 BOM → LHR May 3, 05:15 UTCMay 3, 13:35 UTC8h 20m
2026-05-03 BAW134 BOM → LHR May 3, 04:20 UTCMay 3, 04:30 UTC10m
2026-05-02 BAW135 LHR → BOM May 2, 17:05 UTCMay 3, 01:50 UTC8h 45m
2026-05-02 BAW88C YVR → LHR May 2, 05:25 UTCMay 2, 13:55 UTC8h 30m
2026-05-01 BAW5VY LHR → YVR May 1, 18:10 UTCMay 2, 03:25 UTC9h 15m

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

Mode-S 4007F7 frequently asked

What is Mode-S code 4007F7?
4007F7 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-YMML.
Where is Mode-S 4007F7 registered?
Mode-S code 4007F7 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 4007F7 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4007F7, octal 20003767, decimal 4,196,343.
What flights does 4007F7 operate?
Mode-S 4007F7 has broadcast 20 distinct callsigns, including BAW5VY, BAW21V, BAW88C, BAW134, BAW120.