sensors Mode-S transponder

424724

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to VP-CCQ · BOMBARDIER BD-700 Global 7000/7500

Hex
424724
Octal
20443444
Decimal
4,343,588
Country
GB
Tail
VP-CCQ
Type
GL7T
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
1
Country
GB
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 424724.

Country allocation

The ICAO 24-bit address 424724 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 1 distinct

Callsign Airline Flights Last seen
VPCCQ - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 VPCCQ - Apr 13, 14:50 UTCApr 13, 15:10 UTC20m
2026-04-13 VPCCQ - Apr 13, 13:40 UTCApr 13, 14:20 UTC40m
2026-04-13 VPCCQ - Apr 13, 09:30 UTCApr 13, 10:05 UTC35m
2026-04-13 VPCCQ - Apr 13, 03:55 UTCApr 13, 04:20 UTC25m
2026-04-13 VPCCQ - Apr 13, 03:00 UTCApr 13, 04:15 UTC1h 15m
2026-04-12 VPCCQ HVN → TEB Apr 12, 18:40 UTCApr 12, 19:05 UTC25m

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

Mode-S 424724 frequently asked

What is Mode-S code 424724?
424724 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-CCQ.
Where is Mode-S 424724 registered?
Mode-S code 424724 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 424724 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 424724, octal 20443444, decimal 4,343,588.
What flights does 424724 operate?
Mode-S 424724 has broadcast 1 distinct callsign, including VPCCQ.