sensors Mode-S transponder

405E82

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-CRJW · SCHLEICHER ASG-29

Hex
405E82
Octal
20057202
Decimal
4,218,498
Country
GB
Tail
G-CRJW
Type
AS29
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
1
Country
GB
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 405E82.

Country allocation

The ICAO 24-bit address 405E82 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
GLIDERW8 - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 GLIDERW8 - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 GLIDERW8 - Apr 13, 15:40 UTCApr 13, 16:00 UTC20m
2026-04-13 GLIDERW8 - Apr 13, 12:20 UTCApr 13, 14:55 UTC2h 35m
2026-04-13 GLIDERW8 - Apr 13, 11:55 UTCApr 13, 14:55 UTC3h 0m
2026-04-13 GLIDERW8 - Apr 13, 11:25 UTCApr 13, 12:15 UTC50m

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

Mode-S 405E82 frequently asked

What is Mode-S code 405E82?
405E82 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-CRJW.
Where is Mode-S 405E82 registered?
Mode-S code 405E82 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 405E82 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 405E82, octal 20057202, decimal 4,218,498.
What flights does 405E82 operate?
Mode-S 405E82 has broadcast 1 distinct callsign, including GLIDERW8.