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sensors Mode-S transponder

4007F5

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-YMMJ · BOEING 777-200

Hex
4007F5
Octal
20003765
Decimal
4,196,341
Country
GB
Tail
G-YMMJ
Type
B772
No current signal · last broadcast 5h ago
Flights observed
218
Distinct callsigns
20
Country
GB
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4007F5.

Country allocation

The ICAO 24-bit address 4007F5 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
BAW249 - 16 2026-06-28
BAW248 - 14 2026-06-28
BAW2LJ - 12 2026-07-11
BAW276 - 12 2026-07-05
BAW22B - 12 2026-07-10
BAW265 - 11 2026-07-09
BAW264 - 11 2026-07-10
BAW134 - 11 2026-07-08
BAW257 British Airways 10 2026-04-19
BAW198 British Airways 10 2026-05-09
BAW135 - 10 2026-07-08
BAW256 British Airways 9 2026-04-20
BAW98T British Airways 5 2026-04-13
BAW46EZ - 5 2026-07-11
BAW461 - 5 2026-07-11
BAW21V - 4 2026-06-24
BAW143 British Airways 4 2026-05-10
BAW142 British Airways 4 2026-05-10
BAW120 - 4 2026-06-25
BAW118 British Airways 4 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 BAW63 - Jul 13, 21:35 UTCJul 14, 01:25 UTC3h 50m
2026-07-13 BAW62 - Jul 13, 16:00 UTCJul 13, 18:20 UTC2h 20m
2026-07-13 BAW63 - Jul 13, 06:30 UTCJul 13, 06:40 UTC10m
2026-07-12 BAW63 - Jul 12, 22:35 UTCJul 13, 02:15 UTC3h 40m
2026-07-11 BAW461 MAD → LHR Jul 11, 17:05 UTCJul 11, 19:05 UTC2h 0m
2026-07-11 BAW46EZ - Jul 11, 13:30 UTCJul 11, 15:10 UTC1h 40m
2026-07-11 BAW2LJ BWI → LHR Jul 11, 03:30 UTCJul 11, 10:10 UTC6h 40m
2026-07-10 BAW22B LHR → BWI Jul 10, 16:00 UTCJul 10, 23:40 UTC7h 40m
2026-07-10 BAW264 - Jul 10, 00:40 UTCJul 10, 10:45 UTC10h 5m
2026-07-09 BAW265 LHR → SAN Jul 9, 11:35 UTCJul 9, 22:05 UTC10h 30m
2026-07-08 BAW134 - Jul 8, 12:25 UTCJul 8, 19:35 UTC7h 10m
2026-07-08 BAW134 - Jul 8, 10:15 UTCJul 8, 10:35 UTC20m
2026-07-08 BAW135 - Jul 8, 07:45 UTCJul 8, 08:05 UTC20m
2026-07-08 BAW135 - Jul 8, 06:55 UTCJul 8, 07:05 UTC10m
2026-07-07 BAW135 - Jul 7, 18:20 UTCJul 8, 05:05 UTC10h 45m
2026-07-07 BAW134 - Jul 7, 05:55 UTCJul 7, 15:20 UTC9h 25m
2026-07-06 BAW135 - Jul 6, 19:20 UTCJul 7, 03:30 UTC8h 10m
2026-07-05 BAW276 - Jul 5, 17:20 UTCJul 6, 12:55 UTC19h 35m
2026-07-05 BAW276 - Jul 5, 15:40 UTCJul 6, 12:55 UTC21h 15m
2026-07-04 BAW276 - Jul 4, 17:20 UTCJul 5, 12:40 UTC19h 20m
2026-07-04 BAW276 - Jul 4, 15:20 UTCJul 5, 12:40 UTC21h 20m
2026-07-03 BAW290 IAD → LHR Jul 3, 23:45 UTCJul 4, 06:30 UTC6h 45m
2026-07-03 BAW291 - Jul 3, 13:40 UTCJul 3, 21:25 UTC7h 45m
2026-07-03 BAW86 YVR → LHR Jul 3, 01:25 UTCJul 3, 10:05 UTC8h 40m
2026-07-02 BAW87 - Jul 2, 13:45 UTCJul 2, 22:55 UTC9h 10m
2026-07-02 BAW2LJ - Jul 2, 03:25 UTCJul 2, 09:50 UTC6h 25m
2026-07-01 BAW22B - Jul 1, 15:55 UTCJul 1, 23:25 UTC7h 30m
2026-06-30 BAW277 LHR → HYD Jun 30, 15:20 UTCJul 1, 12:35 UTC21h 15m
2026-06-30 BAW2LJ - Jun 30, 01:55 UTCJun 30, 08:30 UTC6h 35m
2026-06-29 BAW22B - Jun 29, 16:25 UTCJun 29, 23:44 UTC7h 20m
2026-06-28 BAW248 - Jun 28, 20:14 UTCJun 29, 06:54 UTC10h 40m
2026-06-28 BAW248 - Jun 28, 15:24 UTCJun 28, 17:55 UTC2h 30m
2026-06-28 BAW249 - Jun 28, 10:30 UTCJun 28, 13:25 UTC2h 55m
2026-06-27 BAW249 - Jun 27, 21:15 UTCJun 28, 08:09 UTC10h 55m
2026-06-27 BAW461 MAD → LHR Jun 27, 16:35 UTCJun 27, 18:15 UTC1h 40m
2026-06-27 BAW46EZ - Jun 27, 12:50 UTCJun 27, 14:45 UTC1h 55m
2026-06-27 BAW2LJ - Jun 27, 01:59 UTCJun 27, 08:44 UTC6h 45m
2026-06-26 BAW22B - Jun 26, 16:14 UTCJun 26, 23:44 UTC7h 30m
2026-06-25 BAW276 - Jun 25, 17:20 UTCJun 26, 12:24 UTC19h 5m
2026-06-25 BAW276 - Jun 25, 15:20 UTCJun 26, 12:24 UTC21h 5m
2026-06-25 BAW276 - Jun 25, 15:04 UTCJun 26, 12:24 UTC21h 20m
2026-06-25 BAW120 - Jun 25, 01:50 UTCJun 25, 08:55 UTC7h 5m
2026-06-24 BAW21V - Jun 24, 15:35 UTCJun 24, 23:20 UTC7h 45m
2026-06-24 BAW264 - Jun 24, 00:05 UTCJun 24, 09:55 UTC9h 50m
2026-06-23 BAW265 - Jun 23, 11:04 UTCJun 23, 21:45 UTC10h 40m
2026-06-22 BAW290 IAD → LHR Jun 22, 23:39 UTCJun 23, 06:04 UTC6h 25m
2026-06-22 BAW291 - Jun 22, 13:39 UTCJun 22, 21:14 UTC7h 35m
2026-06-22 BAW2LJ BWI → LHR Jun 22, 03:19 UTCJun 22, 09:45 UTC6h 25m
2026-06-21 BAW22B - Jun 21, 17:35 UTCJun 22, 00:50 UTC7h 15m
2026-06-21 BAW2LJ - Jun 21, 02:04 UTCJun 21, 08:25 UTC6h 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-YMMJ page for operator, model, and routing details .

Mode-S 4007F5 frequently asked

What is Mode-S code 4007F5?
4007F5 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-YMMJ.
Where is Mode-S 4007F5 registered?
Mode-S code 4007F5 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 4007F5 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4007F5, octal 20003765, decimal 4,196,341.
What flights does 4007F5 operate?
Mode-S 4007F5 has broadcast 20 distinct callsigns, including BAW249, BAW248, BAW2LJ, BAW276, BAW22B.