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sensors Mode-S transponder

4007F3

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-YMMH · BOEING 777-200

Hex
4007F3
Octal
20003763
Decimal
4,196,339
Country
GB
Tail
G-YMMH
Type
B772
Broadcasting now · callsign BAW264 · 39,000 ft
Flights observed
186
Distinct callsigns
20
Country
GB
Last broadcast
23m ago

Current position

4007F3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4007F3 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 - 23 2026-07-12
BAW248 - 18 2026-07-12
BAW2LJ - 12 2026-07-04
BAW134 - 12 2026-06-29
BAW135 - 11 2026-06-28
BAW265 - 8 2026-07-13
BAW264 - 8 2026-07-14
BAW22B - 8 2026-07-09
BAW51B - 6 2026-07-08
BAW50G - 6 2026-07-07
BAW46EZ - 6 2026-07-05
BAW461 - 6 2026-07-05
BAW291 - 6 2026-06-26
BAW290 - 6 2026-06-27
BAW21V - 5 2026-06-19
BAW199 British Airways 4 2026-04-29
BAW119 British Airways 4 2026-04-14
BAW118 British Airways 4 2026-04-15
BAW276 - 3 2026-07-08
BAW2160 British Airways 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BAW264 - Jul 14, 00:05 UTCJul 14, 08:45 UTC8h 40m
2026-07-13 BAW265 - Jul 13, 11:15 UTCJul 13, 21:50 UTC10h 35m
2026-07-12 BAW248 - Jul 12, 20:05 UTCJul 13, 06:55 UTC10h 50m
2026-07-12 BAW248 - Jul 12, 15:45 UTCJul 12, 18:05 UTC2h 20m
2026-07-12 BAW249 - Jul 12, 10:40 UTCJul 12, 13:45 UTC3h 5m
2026-07-11 BAW249 LHR → GIG Jul 11, 21:20 UTCJul 12, 08:15 UTC10h 55m
2026-07-11 BAW62 - Jul 11, 11:00 UTCJul 11, 15:30 UTC4h 30m
2026-07-10 BAW63 - Jul 10, 20:05 UTCJul 10, 23:55 UTC3h 50m
2026-07-09 BAW22B LHR → LHR Jul 9, 16:30 UTCJul 9, 18:35 UTC2h 5m
2026-07-08 BAW276 - Jul 8, 19:25 UTCJul 9, 12:50 UTC17h 25m
2026-07-08 BAW276 - Jul 8, 16:50 UTCJul 9, 12:50 UTC20h 0m
2026-07-08 BAW276 - Jul 8, 15:45 UTCJul 9, 12:50 UTC21h 5m
2026-07-08 BAW51B BOS → LHR Jul 8, 02:10 UTCJul 8, 08:35 UTC6h 25m
2026-07-07 BAW50G - Jul 7, 17:10 UTCJul 7, 23:40 UTC6h 30m
2026-07-06 BAW248 - Jul 6, 19:55 UTCJul 7, 06:45 UTC10h 50m
2026-07-06 BAW248 - Jul 6, 15:50 UTCJul 6, 18:05 UTC2h 15m
2026-07-06 BAW249 - Jul 6, 13:20 UTCJul 6, 13:50 UTC30m
2026-07-06 BAW249 - Jul 6, 10:40 UTCJul 6, 12:00 UTC1h 20m
2026-07-05 BAW249 - Jul 5, 21:10 UTCJul 6, 08:10 UTC11h 0m
2026-07-05 BAW461 - Jul 5, 15:40 UTCJul 5, 17:25 UTC1h 45m
2026-07-05 BAW46EZ - Jul 5, 11:55 UTCJul 5, 13:40 UTC1h 45m
2026-07-05 BAW216 IAD → LHR Jul 5, 01:45 UTCJul 5, 08:25 UTC6h 40m
2026-07-04 BAW7W - Jul 4, 12:00 UTCJul 4, 20:00 UTC8h 0m
2026-07-04 BAW2LJ - Jul 4, 02:00 UTCJul 4, 08:45 UTC6h 45m
2026-07-03 BAW22B - Jul 3, 15:55 UTCJul 3, 23:35 UTC7h 40m
2026-07-03 BAW51B BOS → LHR Jul 3, 03:10 UTCJul 3, 09:20 UTC6h 10m
2026-07-02 BAW50G - Jul 2, 17:50 UTCJul 3, 00:45 UTC6h 55m
2026-07-02 BAW264 - Jul 2, 03:40 UTCJul 2, 12:55 UTC9h 15m
2026-07-01 BAW265 - Jul 1, 12:55 UTCJul 1, 23:20 UTC10h 25m
2026-06-30 BAW248 - Jun 30, 20:10 UTCJul 1, 07:00 UTC10h 50m
2026-06-30 BAW248 - Jun 30, 15:35 UTCJun 30, 18:00 UTC2h 25m
2026-06-30 BAW249 - Jun 30, 10:20 UTCJun 30, 13:30 UTC3h 10m
2026-06-29 BAW249 - Jun 29, 21:09 UTCJun 30, 08:05 UTC10h 56m
2026-06-29 BAW134 - Jun 29, 04:14 UTCJun 29, 13:24 UTC9h 10m
2026-06-28 BAW135 - Jun 28, 17:19 UTCJun 29, 01:55 UTC8h 35m
2026-06-28 BAW264 SAN → LHR Jun 28, 00:35 UTCJun 28, 10:30 UTC9h 55m
2026-06-27 BAW265 - Jun 27, 11:59 UTCJun 27, 22:25 UTC10h 25m
2026-06-27 BAW290 IAD → LHR Jun 27, 00:00 UTCJun 27, 06:35 UTC6h 35m
2026-06-26 BAW291 - Jun 26, 14:19 UTCJun 26, 21:50 UTC7h 30m
2026-06-26 BAW2LJ - Jun 26, 01:50 UTCJun 26, 08:10 UTC6h 20m
2026-06-25 BAW22B - Jun 25, 15:59 UTCJun 25, 23:34 UTC7h 35m
2026-06-24 BAW461 MAD → LHR Jun 24, 15:59 UTCJun 24, 17:50 UTC1h 50m
2026-06-24 BAW46EZ - Jun 24, 12:04 UTCJun 24, 14:00 UTC1h 55m
2026-06-24 BAW51B BOS → LHR Jun 24, 02:30 UTCJun 24, 08:20 UTC5h 50m
2026-06-23 BAW50G - Jun 23, 17:20 UTCJun 24, 00:15 UTC6h 55m
2026-06-23 BAW134 - Jun 23, 04:14 UTCJun 23, 13:50 UTC9h 35m
2026-06-22 BAW135 - Jun 22, 17:34 UTCJun 23, 02:15 UTC8h 40m
2026-06-22 BAW134 - Jun 22, 04:15 UTCJun 22, 13:39 UTC9h 25m
2026-06-21 BAW135 - Jun 21, 17:35 UTCJun 22, 02:04 UTC8h 30m
2026-06-21 BAW134 - Jun 21, 04:20 UTCJun 21, 13:39 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-YMMH page for operator, model, and routing details .

Mode-S 4007F3 frequently asked

What is Mode-S code 4007F3?
4007F3 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-YMMH.
Where is Mode-S 4007F3 registered?
Mode-S code 4007F3 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 4007F3 broadcasting right now?
Yes. Mode-S 4007F3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4007F3, octal 20003763, decimal 4,196,339.
What flights does 4007F3 operate?
Mode-S 4007F3 has broadcast 20 distinct callsigns, including BAW249, BAW248, BAW2LJ, BAW134, BAW135.