Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

400772

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-VIIU · BOEING 777-200

Hex
400772
Octal
20003562
Decimal
4,196,210
Country
GB
Tail
G-VIIU
Type
B772
No current signal · last broadcast 22h ago
Flights observed
207
Distinct callsigns
20
Country
GB
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S 400772.

Country allocation

The ICAO 24-bit address 400772 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
BAW2279 - 18 2026-07-12
BAW39D - 16 2026-06-30
BAW2278 - 16 2026-07-12
BAW38W - 14 2026-07-01
BAW12J - 14 2026-07-06
BAW12TB - 12 2026-07-06
BAW5KW - 10 2026-07-06
BAW2160 British Airways 10 2026-05-29
BAW63H British Airways 9 2026-06-10
BAW43C British Airways 9 2026-06-10
BAW9VA - 7 2026-07-05
BAW25K - 6 2026-06-27
BAW2256 - 6 2026-06-17
BAW2239 - 6 2026-06-18
BAW2161 British Airways 6 2026-04-17
BAW2158 - 6 2026-07-05
BAW2156 British Airways 6 2026-05-18
BAW17PA British Airways 6 2026-05-19
BAW23K - 5 2026-06-27
BAW22G British Airways 4 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 - - Jul 13, 09:45 UTCJul 13, 09:55 UTC10m
2026-07-12 BAW2278 - Jul 12, 22:35 UTCJul 13, 07:10 UTC8h 35m
2026-07-12 BAW2279 LGW → YVR Jul 12, 11:01 UTCJul 12, 20:15 UTC9h 15m
2026-07-11 BAW2278 YVR → LGW Jul 11, 23:00 UTCJul 12, 07:50 UTC8h 50m
2026-07-11 BAW2279 - Jul 11, 15:35 UTCJul 11, 20:25 UTC4h 50m
2026-07-11 BAW2279 - Jul 11, 11:05 UTCJul 11, 14:00 UTC2h 55m
2026-07-10 BAW2278 YVR → LGW Jul 10, 22:45 UTCJul 11, 07:10 UTC8h 25m
2026-07-10 BAW2279 LGW → YVR Jul 10, 11:00 UTCJul 10, 20:05 UTC9h 5m
2026-07-09 BAW2278 YVR → LGW Jul 9, 22:40 UTCJul 10, 07:30 UTC8h 50m
2026-07-09 BAW2279 LGW → YVR Jul 9, 10:55 UTCJul 9, 19:55 UTC9h 0m
2026-07-08 BAW2278 YVR → LGW Jul 8, 23:25 UTCJul 9, 08:05 UTC8h 40m
2026-07-08 BAW2279 LGW → YVR Jul 8, 11:55 UTCJul 8, 20:55 UTC9h 0m
2026-07-07 BAW2278 - Jul 7, 23:10 UTCJul 8, 08:00 UTC8h 50m
2026-07-07 BAW2279 LGW → YVR Jul 7, 11:45 UTCJul 7, 21:00 UTC9h 15m
2026-07-06 BAW12TB TPA → LGW Jul 6, 23:05 UTCJul 7, 07:10 UTC8h 5m
2026-07-06 BAW12J LGW → TPA Jul 6, 11:50 UTCJul 6, 20:35 UTC8h 45m
2026-07-06 BAW5KW - Jul 6, 06:35 UTCJul 6, 08:35 UTC2h 0m
2026-07-06 BAW5KW - Jul 6, 00:40 UTCJul 6, 00:55 UTC15m
2026-07-05 BAW2158 - Jul 5, 22:50 UTCJul 5, 23:05 UTC15m
2026-07-05 BAW2159 - Jul 5, 20:20 UTCJul 5, 20:35 UTC15m
2026-07-05 BAW9VA - Jul 5, 10:40 UTCJul 5, 11:35 UTC55m
2026-07-04 BAW2278 YVR → LGW Jul 4, 22:45 UTCJul 5, 07:05 UTC8h 20m
2026-07-04 BAW2279 LGW → YVR Jul 4, 11:00 UTCJul 4, 20:25 UTC9h 25m
2026-07-04 BAW86 - Jul 4, 09:40 UTCJul 4, 09:50 UTC10m
2026-07-03 BAW12TB TPA → LGW Jul 3, 23:00 UTCJul 4, 07:10 UTC8h 10m
2026-07-03 BAW12J LGW → TPA Jul 3, 11:40 UTCJul 3, 20:15 UTC8h 35m
2026-07-03 BAW2278 YVR → LGW Jul 3, 06:05 UTCJul 3, 07:35 UTC1h 30m
2026-07-02 BAW2278 YVR → LGW Jul 2, 22:50 UTCJul 2, 23:50 UTC1h 0m
2026-07-02 BAW2279 LGW → YVR Jul 2, 11:00 UTCJul 2, 20:05 UTC9h 5m
2026-07-01 BAW38W MCO → LGW Jul 1, 02:15 UTCJul 1, 10:20 UTC8h 5m
2026-06-30 BAW39D LGW → MCO Jun 30, 13:55 UTCJun 30, 22:50 UTC8h 55m
2026-06-30 BAW38W MCO → LGW Jun 30, 01:14 UTCJun 30, 08:55 UTC7h 40m
2026-06-29 BAW39D LGW → MCO Jun 29, 13:44 UTCJun 29, 22:55 UTC9h 10m
2026-06-29 BAW38W MCO → LGW Jun 29, 02:30 UTCJun 29, 10:10 UTC7h 40m
2026-06-28 BAW39D LGW → MCO Jun 28, 15:14 UTCJun 28, 23:54 UTC8h 40m
2026-06-27 BAW25K - Jun 27, 23:10 UTCJun 28, 11:29 UTC12h 20m
2026-06-27 BAW23K LGW → LGW Jun 27, 15:00 UTCJun 28, 11:29 UTC20h 30m
2026-06-27 BAW25K - Jun 27, 08:44 UTCJun 27, 10:00 UTC1h 15m
2026-06-26 BAW25K LGW → LGW Jun 26, 13:34 UTCJun 27, 10:00 UTC20h 25m
2026-06-26 BAW38W MCO → LGW Jun 26, 02:24 UTCJun 26, 10:05 UTC7h 40m
2026-06-25 BAW39D LGW → MCO Jun 25, 14:29 UTCJun 25, 23:19 UTC8h 50m
2026-06-25 BAW25K - Jun 25, 08:40 UTCJun 25, 09:50 UTC1h 10m
2026-06-24 BAW23K LGW → LGW Jun 24, 13:14 UTCJun 25, 09:50 UTC20h 35m
2026-06-23 BAW2067 LGW → ACC Jun 23, 13:24 UTCJun 24, 04:39 UTC15h 15m
2026-06-21 BAW12TB TPA → LGW Jun 21, 23:00 UTCJun 22, 07:04 UTC8h 5m
2026-06-21 BAW12J LGW → TPA Jun 21, 11:40 UTCJun 21, 20:34 UTC8h 55m
2026-06-20 BAW2278 YVR → LGW Jun 20, 22:35 UTCJun 21, 07:14 UTC8h 40m
2026-06-20 BAW2279 LGW → YVR Jun 20, 10:55 UTCJun 20, 19:49 UTC8h 55m
2026-06-19 BAW12TB TPA → LGW Jun 19, 22:49 UTCJun 20, 06:54 UTC8h 5m
2026-06-19 BAW12J LGW → TPA Jun 19, 11:30 UTCJun 19, 20:29 UTC9h 0m

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

Mode-S 400772 frequently asked

What is Mode-S code 400772?
400772 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VIIU.
Where is Mode-S 400772 registered?
Mode-S code 400772 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 400772 broadcasting right now?
No active broadcast right now. Last signal was 22h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 400772, octal 20003562, decimal 4,196,210.
What flights does 400772 operate?
Mode-S 400772 has broadcast 20 distinct callsigns, including BAW2279, BAW39D, BAW2278, BAW38W, BAW12J.