Apparatus

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sensors Mode-S transponder

4005BF

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-VIIG · BOEING 777-200

Hex
4005BF
Octal
20002677
Decimal
4,195,775
Country
GB
Tail
G-VIIG
Type
B772
Broadcasting now · callsign BAW7NY · 38,000 ft
Flights observed
178
Distinct callsigns
20
Country
GB
Last broadcast
4h ago

Current position

4005BF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4005BF 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
BAW29G British Airways 9 2026-06-27
BAW176A - 9 2026-07-12
BAW11J British Airways 8 2026-05-08
BAW82 - 7 2026-06-29
BAW181 British Airways 7 2026-05-07
BAW17R - 7 2026-07-11
BAW7W - 6 2026-07-09
BAW7TG British Airways 6 2026-05-23
BAW7NY - 6 2026-07-14
BAW23T British Airways 6 2026-05-24
BAW239 - 6 2026-06-26
BAW216 - 6 2026-07-09
BAW183 - 6 2026-06-28
BAW9E - 5 2026-07-13
BAW7CP British Airways 5 2026-07-05
BAW6AC - 5 2026-07-06
BAW2LJ - 5 2026-07-03
BAW22B - 5 2026-07-02
BAW19N British Airways 5 2026-05-24
BAW185 - 5 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BAW7NY - Jul 14, 09:55 UTCJul 14, 11:00 UTC1h 5m
2026-07-13 BAW9E - Jul 13, 22:05 UTCJul 14, 04:30 UTC6h 25m
2026-07-13 BAW185 - Jul 13, 10:40 UTCJul 13, 17:40 UTC7h 0m
2026-07-12 BAW9E EWR → LHR Jul 12, 22:15 UTCJul 13, 04:35 UTC6h 20m
2026-07-12 BAW185 LHR → EWR Jul 12, 10:40 UTCJul 12, 17:35 UTC6h 55m
2026-07-12 BAW176A JFK → LHR Jul 12, 00:45 UTCJul 12, 07:10 UTC6h 25m
2026-07-11 BAW17R - Jul 11, 09:30 UTCJul 11, 16:40 UTC7h 10m
2026-07-10 BAW20R - Jul 10, 22:45 UTCJul 11, 05:55 UTC7h 10m
2026-07-10 BAW2PD LHR → ORD Jul 10, 11:25 UTCJul 10, 19:25 UTC8h 0m
2026-07-09 BAW216 IAD → LHR Jul 9, 22:55 UTCJul 10, 05:45 UTC6h 50m
2026-07-09 BAW7W LHR → IAD Jul 9, 12:10 UTCJul 9, 19:55 UTC7h 45m
2026-07-08 BAW20R ORD → LHR Jul 8, 23:30 UTCJul 9, 06:30 UTC7h 0m
2026-07-08 BAW2PD - Jul 8, 10:55 UTCJul 8, 18:55 UTC8h 0m
2026-07-07 BAW216 IAD → LHR Jul 7, 22:20 UTCJul 8, 05:05 UTC6h 45m
2026-07-07 BAW7W - Jul 7, 12:10 UTCJul 7, 19:30 UTC7h 20m
2026-07-07 BAW120 - Jul 7, 01:40 UTCJul 7, 08:35 UTC6h 55m
2026-07-06 BAW21V - Jul 6, 15:20 UTCJul 6, 23:20 UTC8h 0m
2026-07-06 BAW6AC ORD → LHR Jul 6, 03:45 UTCJul 6, 10:50 UTC7h 5m
2026-07-05 BAW7CP LHR → ORD Jul 5, 15:00 UTCJul 5, 23:05 UTC8h 5m
2026-07-05 BAW120 - Jul 5, 04:05 UTCJul 5, 10:55 UTC6h 50m
2026-07-04 BAW21V LHR → CVG Jul 4, 15:00 UTCJul 4, 23:20 UTC8h 20m
2026-07-04 BAW6AC ORD → LHR Jul 4, 04:50 UTCJul 4, 11:45 UTC6h 55m
2026-07-03 BAW7CP LHR → ORD Jul 3, 15:05 UTCJul 3, 23:30 UTC8h 25m
2026-07-03 BAW2LJ - Jul 3, 02:00 UTCJul 3, 07:45 UTC5h 45m
2026-07-02 BAW22B - Jul 2, 15:45 UTCJul 2, 23:25 UTC7h 40m
2026-07-02 BAW6AC - Jul 2, 03:15 UTCJul 2, 10:15 UTC7h 0m
2026-07-01 BAW7CP LHR → ORD Jul 1, 15:15 UTCJul 1, 23:20 UTC8h 5m
2026-07-01 BAW51B BOS → LHR Jul 1, 02:05 UTCJul 1, 08:10 UTC6h 5m
2026-06-30 BAW50G - Jun 30, 22:50 UTCJun 30, 23:50 UTC1h 0m
2026-06-30 BAW50G - Jun 30, 17:10 UTCJun 30, 22:45 UTC5h 35m
2026-06-29 BAW82 - Jun 29, 22:19 UTCJun 30, 13:10 UTC14h 51m
2026-06-29 BAW178 - Jun 29, 12:14 UTCJun 29, 18:25 UTC6h 10m
2026-06-28 BAW183 - Jun 28, 18:55 UTCJun 29, 01:50 UTC6h 55m
2026-06-27 BAW82 - Jun 27, 22:04 UTCJun 28, 13:04 UTC15h 0m
2026-06-27 BAW29G BOS → LHR Jun 27, 11:44 UTCJun 27, 17:34 UTC5h 50m
2026-06-26 BAW239 - Jun 26, 19:39 UTCJun 27, 02:14 UTC6h 35m
2026-06-25 BAW83 - Jun 25, 21:50 UTCJun 26, 13:49 UTC16h 0m
2026-06-25 BAW29G BOS → LHR Jun 25, 11:44 UTCJun 25, 17:34 UTC5h 50m
2026-06-24 BAW239 - Jun 24, 20:14 UTCJun 25, 02:59 UTC6h 45m
2026-06-23 BAW29G BOS → LHR Jun 23, 11:40 UTCJun 23, 17:39 UTC6h 0m
2026-06-22 BAW239 - Jun 22, 19:34 UTCJun 23, 02:15 UTC6h 40m
2026-06-22 BAW6AC - Jun 22, 02:59 UTCJun 22, 10:10 UTC7h 10m
2026-06-21 BAW7CP LHR → ORD Jun 21, 14:54 UTCJun 21, 23:05 UTC8h 10m
2026-06-20 BAW385 - Jun 20, 09:59 UTCJun 20, 10:44 UTC45m
2026-06-20 BAW384 - Jun 20, 07:24 UTCJun 20, 08:05 UTC40m
2026-06-19 BAW178 JFK → LHR Jun 19, 12:04 UTCJun 19, 18:20 UTC6h 15m
2026-06-18 BAW183 - Jun 18, 23:55 UTCJun 19, 01:54 UTC1h 59m
2026-06-18 BAW183 - Jun 18, 18:55 UTCJun 18, 20:10 UTC1h 15m
2026-06-17 BAW83 - Jun 17, 21:55 UTCJun 18, 13:20 UTC15h 25m
2026-06-17 BAW178 JFK → LHR Jun 17, 12:15 UTCJun 17, 18:35 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-VIIG page for operator, model, and routing details .

Mode-S 4005BF frequently asked

What is Mode-S code 4005BF?
4005BF is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VIIG.
Where is Mode-S 4005BF registered?
Mode-S code 4005BF 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 4005BF broadcasting right now?
Yes. Mode-S 4005BF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4005BF, octal 20002677, decimal 4,195,775.
What flights does 4005BF operate?
Mode-S 4005BF has broadcast 20 distinct callsigns, including BAW29G, BAW176A, BAW11J, BAW82, BAW181.