sensors Mode-S transponder

408111

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-LMTH · ATR-72-600

Hex
408111
Octal
20100421
Decimal
4,227,345
Country
GB
Tail
G-LMTH
Type
AT76
No current signal · last broadcast 14h ago
Flights observed
11
Distinct callsigns
6
Country
GB
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 408111.

Country allocation

The ICAO 24-bit address 408111 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 6 distinct

Callsign Airline Flights Last seen
LOG82HT - 3 2026-04-14
LOG71DP Loganair 2 2026-04-14
LOG49FW - 2 2026-04-13
LOG18FR - 2 2026-04-14
LOG47RC - 1 2026-04-13
LOG42YM - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 LOG18FR - Apr 14, 10:15 UTCApr 14, 11:05 UTC50m
2026-04-14 LOG82HT - Apr 14, 08:30 UTCApr 14, 09:05 UTC35m
2026-04-14 LOG71DP EDI → LSI Apr 14, 06:00 UTCApr 14, 06:35 UTC35m
2026-04-13 LOG49FW - Apr 13, 18:25 UTCApr 13, 19:15 UTC50m
2026-04-13 LOG42YM - Apr 13, 16:20 UTCApr 13, 17:05 UTC45m
2026-04-13 LOG47RC - Apr 13, 12:45 UTCApr 13, 14:05 UTC1h 20m
2026-04-13 LOG18FR - Apr 13, 10:25 UTCApr 13, 11:50 UTC1h 25m
2026-04-13 LOG82HT - Apr 13, 08:20 UTCApr 13, 09:05 UTC45m
2026-04-13 LOG82HT - Apr 13, 08:10 UTCApr 13, 09:05 UTC55m
2026-04-13 LOG71DP EDI → LSI Apr 13, 06:00 UTCApr 13, 06:45 UTC45m
2026-04-12 LOG49FW - Apr 12, 18:30 UTCApr 12, 19:15 UTC45m

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

Mode-S 408111 frequently asked

What is Mode-S code 408111?
408111 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LMTH.
Where is Mode-S 408111 registered?
Mode-S code 408111 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 408111 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 408111, octal 20100421, decimal 4,227,345.
What flights does 408111 operate?
Mode-S 408111 has broadcast 6 distinct callsigns, including LOG82HT, LOG71DP, LOG49FW, LOG18FR, LOG47RC.