Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4007F6

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-YMMK · BOEING 777-200

Hex
4007F6
Octal
20003766
Decimal
4,196,342
Country
GB
Tail
G-YMMK
Type
B772
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
224
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 4007F6.

Country allocation

The ICAO 24-bit address 4007F6 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 British Airways 31 2026-07-21
BAW248 British Airways 29 2026-07-21
BAW134 - 14 2026-07-09
BAW88C - 11 2026-06-25
BAW276 British Airways 11 2026-07-24
BAW5VY - 10 2026-06-24
BAW118 British Airways 10 2026-05-25
BAW265 British Airways 8 2026-07-22
BAW264 British Airways 8 2026-07-23
BAW119 British Airways 8 2026-05-24
BAW46EZ - 7 2026-07-20
BAW461 British Airways 7 2026-07-20
BAW135 - 7 2026-07-08
BAW63 British Airways 5 2026-07-26
BAW51B - 5 2026-06-26
BAW291 - 5 2026-07-15
BAW290 - 5 2026-07-15
BAW143 British Airways 4 2026-05-18
BAW142 British Airways 4 2026-05-18
BAW62 British Airways 3 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BAW63 LHR → EBB Jul 26, 19:45 UTCJul 26, 21:30 UTC1h 45m
2026-07-26 BAW62 EBB → LHR Jul 26, 13:25 UTCJul 26, 15:45 UTC2h 20m
2026-07-25 BAW63 LHR → EBB Jul 25, 19:10 UTCJul 25, 22:15 UTC3h 5m
2026-07-24 BAW276 HYD → LHR Jul 24, 19:35 UTCJul 25, 13:55 UTC18h 20m
2026-07-24 BAW276 HYD → LHR Jul 24, 17:35 UTCJul 25, 13:55 UTC20h 20m
2026-07-24 BAW276 HYD → LHR Jul 24, 17:05 UTCJul 25, 13:55 UTC20h 50m
2026-07-24 BAW86 YVR → LHR Jul 24, 01:20 UTCJul 24, 10:00 UTC8h 40m
2026-07-23 BAW87 LHR → YVR Jul 23, 13:40 UTCJul 23, 22:50 UTC9h 10m
2026-07-23 BAW264 IAD → LHR Jul 23, 00:15 UTCJul 23, 10:10 UTC9h 55m
2026-07-22 BAW265 LHR → SAN Jul 22, 11:10 UTCJul 22, 21:45 UTC10h 35m
2026-07-21 BAW248 GIG → LHR Jul 21, 20:15 UTCJul 22, 05:25 UTC9h 10m
2026-07-21 BAW248 GIG → LHR Jul 21, 15:35 UTCJul 21, 18:05 UTC2h 30m
2026-07-21 BAW249 LHR → GIG Jul 21, 10:40 UTCJul 21, 13:50 UTC3h 10m
2026-07-20 BAW249 LHR → GIG Jul 20, 21:20 UTCJul 21, 08:10 UTC10h 49m
2026-07-20 BAW461 MAD → LHR Jul 20, 15:55 UTCJul 20, 17:55 UTC2h 0m
2026-07-20 BAW46EZ - Jul 20, 12:05 UTCJul 20, 13:50 UTC1h 45m
2026-07-19 BAW248 GIG → LHR Jul 19, 20:25 UTCJul 20, 06:50 UTC10h 25m
2026-07-19 BAW248 GIG → LHR Jul 19, 15:55 UTCJul 19, 18:40 UTC2h 45m
2026-07-19 BAW249 LHR → GIG Jul 19, 10:45 UTCJul 19, 14:15 UTC3h 30m
2026-07-18 BAW249 LHR → GIG Jul 18, 21:25 UTCJul 19, 08:30 UTC11h 5m
2026-07-18 BAW62 - Jul 18, 13:05 UTCJul 18, 15:20 UTC2h 15m
2026-07-17 BAW63 - Jul 17, 19:09 UTCJul 17, 22:20 UTC3h 10m
2026-07-16 BAW62 - Jul 16, 21:35 UTCJul 17, 15:35 UTC18h 0m
2026-07-16 BAW63 - Jul 16, 19:35 UTCJul 17, 15:35 UTC20h 0m
2026-07-16 BAW63 - Jul 16, 19:14 UTCJul 17, 15:35 UTC20h 20m
2026-07-15 BAW290 IAD → LHR Jul 15, 23:35 UTCJul 16, 06:30 UTC6h 55m
2026-07-15 BAW291 LHR → IAD Jul 15, 13:20 UTCJul 15, 20:55 UTC7h 35m
2026-07-15 BAW264 - Jul 15, 00:10 UTCJul 15, 10:25 UTC10h 15m
2026-07-14 BAW265 - Jul 14, 11:15 UTCJul 14, 21:35 UTC10h 20m
2026-07-13 BAW290 IAD → LHR Jul 13, 23:25 UTCJul 14, 06:25 UTC7h 0m
2026-07-13 BAW291 - Jul 13, 13:50 UTCJul 13, 21:10 UTC7h 20m
2026-07-13 BAW2LJ - Jul 13, 02:20 UTCJul 13, 08:55 UTC6h 35m
2026-07-12 BAW22B - Jul 12, 17:01 UTCJul 13, 00:10 UTC7h 10m
2026-07-11 BAW276 - Jul 11, 17:35 UTCJul 12, 12:55 UTC19h 20m
2026-07-11 BAW276 - Jul 11, 15:35 UTCJul 12, 12:55 UTC21h 20m
2026-07-11 BAW276 - Jul 11, 15:10 UTCJul 12, 12:55 UTC21h 45m
2026-07-11 BAW86 YVR → LHR Jul 11, 01:05 UTCJul 11, 09:45 UTC8h 40m
2026-07-10 BAW87 LHR → YVR Jul 10, 11:50 UTCJul 10, 20:55 UTC9h 5m
2026-07-10 BAW98T YYZ → LHR Jul 10, 02:25 UTCJul 10, 08:55 UTC6h 30m
2026-07-09 BAW99 LHR → YYZ Jul 9, 16:35 UTCJul 10, 00:00 UTC7h 25m
2026-07-09 BAW134 - Jul 9, 06:15 UTCJul 9, 13:25 UTC7h 10m
2026-07-09 BAW134 - Jul 9, 04:10 UTCJul 9, 04:45 UTC35m
2026-07-08 BAW135 - Jul 8, 17:20 UTCJul 9, 01:55 UTC8h 35m
2026-07-07 BAW276 - Jul 7, 17:35 UTCJul 8, 12:30 UTC18h 55m
2026-07-07 BAW276 - Jul 7, 15:35 UTCJul 8, 12:30 UTC20h 55m
2026-07-07 BAW276 - Jul 7, 15:05 UTCJul 8, 12:30 UTC21h 25m
2026-07-07 BAW264 - Jul 7, 00:05 UTCJul 7, 09:55 UTC9h 50m
2026-07-06 BAW265 - Jul 6, 11:00 UTCJul 6, 22:00 UTC11h 0m
2026-07-05 BAW248 - Jul 5, 20:50 UTCJul 6, 07:10 UTC10h 20m
2026-07-05 BAW248 - Jul 5, 16:50 UTCJul 5, 19:05 UTC2h 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-YMMK page for operator, model, and routing details .

Mode-S 4007F6 frequently asked

What is Mode-S code 4007F6?
4007F6 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-YMMK.
Where is Mode-S 4007F6 registered?
Mode-S code 4007F6 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 4007F6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4007F6, octal 20003766, decimal 4,196,342.
What flights does 4007F6 operate?
Mode-S 4007F6 has broadcast 20 distinct callsigns, including BAW249, BAW248, BAW134, BAW88C, BAW276.