sensors Mode-S transponder

424844

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to VP-CVV · BOMBARDIER CL-600 Challenger

Hex
424844
Octal
20444104
Decimal
4,343,876
Country
GB
Tail
VP-CVV
Type
CL60
No current signal · last broadcast 3d ago
Flights observed
44
Distinct callsigns
3
Country
GB
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 424844.

Country allocation

The ICAO 24-bit address 424844 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 3 distinct

Callsign Airline Flights Last seen
VPCVV - 35 2026-07-22
GWW401 - 8 2026-05-11
GWW402 - 1 2026-04-27

Recent flights last 44

DateFlightRouteTakeoffLandingDuration
2026-07-22 VPCVV - Jul 22, 13:55 UTCJul 22, 14:20 UTC25m
2026-07-21 VPCVV - Jul 21, 13:35 UTCJul 21, 15:25 UTC1h 50m
2026-06-28 VPCVV - Jun 28, 13:34 UTCJun 28, 17:50 UTC4h 15m
2026-06-24 VPCVV - Jun 24, 14:55 UTCJun 24, 17:20 UTC2h 25m
2026-06-23 VPCVV - Jun 23, 04:09 UTCJun 23, 20:04 UTC15h 55m
2026-06-22 VPCVV BER → ADJ Jun 22, 15:05 UTCJun 22, 21:14 UTC6h 10m
2026-06-22 VPCVV ADJ → BER Jun 22, 10:00 UTCJun 22, 14:05 UTC4h 5m
2026-06-20 VPCVV - Jun 20, 10:34 UTCJun 20, 14:24 UTC3h 50m
2026-06-17 VPCVV DWC → ADJ Jun 17, 07:50 UTCJun 17, 11:00 UTC3h 10m
2026-06-14 VPCVV - Jun 14, 13:35 UTCJun 14, 17:50 UTC4h 15m
2026-06-12 VPCVV - Jun 12, 10:25 UTCJun 12, 13:20 UTC2h 55m
2026-06-09 VPCVV - Jun 9, 11:40 UTCJun 9, 12:00 UTC20m
2026-06-08 VPCVV - Jun 8, 19:30 UTCJun 8, 19:50 UTC20m
2026-06-08 VPCVV - Jun 8, 14:40 UTCJun 8, 15:00 UTC20m
2026-06-01 VPCVV - Jun 1, 13:10 UTCJun 1, 13:40 UTC30m
2026-06-01 VPCVV - Jun 1, 10:40 UTCJun 1, 12:20 UTC1h 40m
2026-05-31 VPCVV - May 31, 08:30 UTCMay 31, 09:15 UTC45m
2026-05-30 VPCVV - May 30, 14:20 UTCMay 30, 21:40 UTC7h 20m
2026-05-29 VPCVV - May 29, 20:25 UTCMay 30, 13:10 UTC16h 45m
2026-05-28 VPCVV - May 28, 12:25 UTCMay 28, 13:10 UTC45m
2026-05-27 VPCVV - May 27, 14:20 UTCMay 27, 14:55 UTC35m
2026-05-26 VPCVV - May 26, 11:44 UTCMay 26, 12:00 UTC15m
2026-05-25 VPCVV - May 25, 16:05 UTCMay 25, 16:30 UTC25m
2026-05-23 VPCVV - May 23, 05:15 UTCMay 23, 05:30 UTC15m
2026-05-21 VPCVV - May 21, 08:30 UTCMay 21, 08:45 UTC15m
2026-05-14 VPCVV AMM → AMM May 14, 21:00 UTCMay 14, 21:15 UTC15m
2026-05-11 GWW401 - May 11, 14:40 UTCMay 11, 17:50 UTC3h 11m
2026-05-07 GWW401 ATH → BCN May 7, 14:35 UTCMay 7, 17:45 UTC3h 10m
2026-05-07 GWW401 SKG → ATH May 7, 11:25 UTCMay 7, 12:05 UTC40m
2026-05-05 GWW401 ATH → SKG May 5, 18:05 UTCMay 5, 18:50 UTC45m
2026-05-05 GWW401 AMM → ATH May 5, 15:10 UTCMay 5, 16:55 UTC1h 45m
2026-05-05 GWW401 - May 5, 12:40 UTCMay 5, 12:55 UTC15m
2026-05-04 VPCVV - May 4, 20:55 UTCMay 4, 21:10 UTC15m
2026-05-04 VPCVV - May 4, 18:20 UTCMay 4, 18:40 UTC21m
2026-05-01 VPCVV - May 1, 16:20 UTCMay 1, 17:55 UTC1h 35m
2026-05-01 VPCVV - May 1, 13:25 UTCMay 1, 14:35 UTC1h 10m
2026-04-30 GWW401 - Apr 30, 11:15 UTCApr 30, 11:30 UTC15m
2026-04-28 VPCVV - Apr 28, 17:10 UTCApr 28, 17:20 UTC10m
2026-04-28 VPCVV - Apr 28, 10:20 UTCApr 28, 10:30 UTC10m
2026-04-27 GWW402 - Apr 27, 06:25 UTCApr 27, 06:35 UTC10m
2026-04-27 GWW401 - Apr 27, 02:50 UTCApr 27, 03:05 UTC15m
2026-04-25 VPCVV - Apr 25, 18:55 UTCApr 25, 19:05 UTC10m
2026-04-22 VPCVV - Apr 22, 18:10 UTCApr 22, 18:25 UTC15m
2026-04-17 VPCVV - Apr 17, 09:30 UTCApr 17, 09:40 UTC10m

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 VP-CVV page for operator, model, and routing details .

Mode-S 424844 frequently asked

What is Mode-S code 424844?
424844 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-CVV.
Where is Mode-S 424844 registered?
Mode-S code 424844 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 424844 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 424844, octal 20444104, decimal 4,343,876.
What flights does 424844 operate?
Mode-S 424844 has broadcast 3 distinct callsigns, including VPCVV, GWW401, GWW402.