Apparatus

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sensors Mode-S transponder

4007EC

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-YMMA · BOEING 777-200

Hex
4007EC
Octal
20003754
Decimal
4,196,332
Country
GB
Tail
G-YMMA
Type
B772
No current signal · last broadcast Jul 26, 21:05 UTC
Flights observed
171
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:05 UTC

Last known position

Most recent position reported by Mode-S 4007EC.

Country allocation

The ICAO 24-bit address 4007EC 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
BAW2230 British Airways 16 2026-07-24
BAW2231 British Airways 15 2026-07-23
BAW2203 - 15 2026-07-20
BAW2202 British Airways 15 2026-07-21
BAW23K - 11 2026-07-15
BAW25K British Airways 9 2026-07-23
BAW2064 - 9 2026-07-11
BAW2065 - 8 2026-07-09
BAW2256 British Airways 7 2026-07-26
BAW5KW - 6 2026-07-20
BAW2158 British Airways 6 2026-07-19
BAW2204 - 5 2026-06-29
BAW9VA British Airways 4 2026-07-26
BAW39D - 4 2026-07-13
BAW38W - 4 2026-07-14
BAW17PA British Airways 4 2026-07-18
BAW63H - 3 2026-07-06
BAW43C - 3 2026-07-06
BAW22G - 3 2026-06-22
BAW2067 - 3 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BAW2159 UVF → TAB Jul 26, 20:50 UTCJul 26, 21:05 UTC15m
2026-07-26 BAW9VA LGW → UVF Jul 26, 10:40 UTCJul 26, 18:45 UTC8h 5m
2026-07-26 BAW2256 ANU → LGW Jul 26, 06:20 UTCJul 26, 07:25 UTC1h 6m
2026-07-25 BAW2256 ANU → LGW Jul 25, 09:25 UTCJul 26, 07:25 UTC22h 1m
2026-07-24 BAW2230 BKK → LGW Jul 24, 16:05 UTCJul 25, 04:00 UTC11h 55m
2026-07-23 BAW2231 LGW → BKK Jul 23, 21:40 UTCJul 24, 08:50 UTC11h 10m
2026-07-23 BAW25K KIN → LGW Jul 23, 09:50 UTCJul 23, 11:05 UTC1h 15m
2026-07-22 BAW25K KIN → LGW Jul 22, 13:30 UTCJul 23, 11:05 UTC21h 35m
2026-07-21 BAW2202 CUN → LGW Jul 21, 01:20 UTCJul 21, 10:25 UTC9h 5m
2026-07-20 BAW2203 LGW → CUN Jul 20, 12:50 UTCJul 20, 22:15 UTC9h 25m
2026-07-20 BAW5KW UVF → LGW Jul 20, 07:35 UTCJul 20, 08:50 UTC1h 15m
2026-07-20 BAW5KW - Jul 20, 00:40 UTCJul 20, 00:55 UTC15m
2026-07-19 BAW2158 GND → UVF Jul 19, 22:55 UTCJul 19, 23:10 UTC15m
2026-07-19 BAW2159 - Jul 19, 20:25 UTCJul 19, 20:45 UTC20m
2026-07-19 BAW9VA LGW → UVF Jul 19, 11:15 UTCJul 19, 12:10 UTC55m
2026-07-19 BAW2256 - Jul 19, 05:45 UTCJul 19, 07:05 UTC1h 20m
2026-07-18 BAW2256 - Jul 18, 10:05 UTCJul 19, 07:05 UTC21h 0m
2026-07-18 BAW17PA LGW → ANU Jul 18, 09:35 UTCJul 18, 10:00 UTC25m
2026-07-17 BAW2230 BKK → LGW Jul 17, 16:00 UTCJul 18, 04:05 UTC12h 6m
2026-07-16 BAW2231 - Jul 16, 23:15 UTCJul 17, 10:25 UTC11h 10m
2026-07-16 BAW25K - Jul 16, 08:40 UTCJul 16, 10:04 UTC1h 25m
2026-07-15 BAW23K LGW → LGW Jul 15, 13:40 UTCJul 16, 10:04 UTC20h 25m
2026-07-14 BAW2067 LGW → LGW Jul 14, 13:05 UTCJul 15, 03:45 UTC14h 39m
2026-07-14 BAW38W MCO → LGW Jul 14, 01:25 UTCJul 14, 09:40 UTC8h 15m
2026-07-13 BAW39D LGW → MCO Jul 13, 13:45 UTCJul 13, 22:25 UTC8h 40m
2026-07-13 BAW38W MCO → LGW Jul 13, 01:50 UTCJul 13, 09:55 UTC8h 5m
2026-07-12 BAW39D LGW → MCO Jul 12, 14:05 UTCJul 12, 22:50 UTC8h 45m
2026-07-12 BAW2202 CUN → LGW Jul 12, 01:50 UTCJul 12, 10:55 UTC9h 5m
2026-07-11 BAW2203 LGW → CUN Jul 11, 14:05 UTCJul 11, 23:35 UTC9h 30m
2026-07-11 - LGW → LGW Jul 11, 11:50 UTCJul 11, 11:55 UTC5m
2026-07-11 BAW2064 - Jul 11, 00:25 UTCJul 11, 04:10 UTC3h 45m
2026-07-09 BAW2065 - Jul 9, 20:40 UTCJul 9, 23:50 UTC3h 10m
2026-07-09 BAW2202 CUN → LGW Jul 9, 01:00 UTCJul 9, 10:00 UTC9h 0m
2026-07-08 BAW2203 LGW → CUN Jul 8, 12:45 UTCJul 8, 22:30 UTC9h 45m
2026-07-08 BAW2256 - Jul 8, 05:20 UTCJul 8, 06:25 UTC1h 5m
2026-07-07 BAW17PA LGW → LGW Jul 7, 09:35 UTCJul 8, 06:25 UTC20h 50m
2026-07-06 BAW63H MCO → LGW Jul 6, 22:35 UTCJul 7, 06:25 UTC7h 50m
2026-07-06 BAW43C LGW → MCO Jul 6, 10:10 UTCJul 6, 18:40 UTC8h 30m
2026-07-05 BAW2230 - Jul 5, 16:00 UTCJul 6, 04:25 UTC12h 25m
2026-07-04 BAW2231 LGW → BKK Jul 4, 21:35 UTCJul 5, 08:35 UTC11h 0m
2026-07-04 BAW2202 CUN → LGW Jul 4, 00:50 UTCJul 4, 09:45 UTC8h 55m
2026-07-03 BAW2203 LGW → CUN Jul 3, 12:45 UTCJul 3, 22:20 UTC9h 35m
2026-07-02 BAW12TB TPA → LGW Jul 2, 23:25 UTCJul 3, 07:30 UTC8h 5m
2026-07-02 BAW12J LGW → TPA Jul 2, 11:50 UTCJul 2, 20:45 UTC8h 55m
2026-07-01 BAW2278 YVR → LGW Jul 1, 22:50 UTCJul 2, 07:35 UTC8h 45m
2026-07-01 BAW2279 LGW → YVR Jul 1, 11:25 UTCJul 1, 20:30 UTC9h 5m
2026-07-01 BAW2256 - Jul 1, 06:00 UTCJul 1, 06:55 UTC55m
2026-06-30 BAW17PA LGW → LGW Jun 30, 09:25 UTCJul 1, 06:55 UTC21h 30m
2026-06-29 BAW2204 - Jun 29, 21:30 UTCJun 30, 05:05 UTC7h 36m
2026-06-29 BAW2204 LGW → LGW Jun 29, 09:25 UTCJun 30, 05:05 UTC19h 41m

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

Mode-S 4007EC frequently asked

What is Mode-S code 4007EC?
4007EC is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-YMMA.
Where is Mode-S 4007EC registered?
Mode-S code 4007EC 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 4007EC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4007EC, octal 20003754, decimal 4,196,332.
What flights does 4007EC operate?
Mode-S 4007EC has broadcast 20 distinct callsigns, including BAW2230, BAW2231, BAW2203, BAW2202, BAW23K.