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sensors Mode-S transponder

407981

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-LMRA · ATR-42-500

Hex
407981
Octal
20074601
Decimal
4,225,409
Country
GB
Tail
G-LMRA
Type
AT45
No current signal · last broadcast Jul 24, 19:15 UTC
Flights observed
499
Distinct callsigns
20
Country
GB
Last broadcast
Jul 24, 19:15 UTC

Last known position

Most recent position reported by Mode-S 407981.

Country allocation

The ICAO 24-bit address 407981 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
LOG2WF - 41 2026-07-10
LOG26PQ - 39 2026-07-10
LOG56LK Loganair 37 2026-07-24
LOG17ZA - 34 2026-07-10
LOG65KL Loganair 32 2026-07-24
LOG34CF - 31 2026-07-10
LOG28RW Loganair 27 2026-07-24
LOG82WR Loganair 25 2026-07-24
LOG17DN - 25 2026-07-08
LOG1DL Loganair 20 2026-07-24
LOG2LD Loganair 19 2026-07-24
LOG78LC - 18 2026-07-10
LOG59QN - 17 2026-07-09
LOG29JK - 9 2026-07-05
LOG93JT - 8 2026-07-10
LOG7WC - 8 2026-07-10
LOG12BK - 8 2026-07-08
LOG902P - 6 2026-05-18
LOG8MU - 6 2026-07-05
LOG8JZ - 6 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 LOG65KL LHR → DND Jul 24, 18:00 UTCJul 24, 19:15 UTC1h 15m
2026-07-24 LOG56LK DND → LHR Jul 24, 14:55 UTCJul 24, 16:25 UTC1h 30m
2026-07-24 LOG2LD DND → LHR Jul 24, 13:35 UTCJul 24, 14:05 UTC30m
2026-07-24 LOG1DL DND → KOI Jul 24, 11:35 UTCJul 24, 12:00 UTC25m
2026-07-24 LOG82WR LHR → DND Jul 24, 09:20 UTCJul 24, 10:45 UTC1h 25m
2026-07-24 LOG28RW DND → LCY Jul 24, 06:05 UTCJul 24, 07:50 UTC1h 45m
2026-07-23 LOG65KL LHR → DND Jul 23, 18:05 UTCJul 23, 19:25 UTC1h 20m
2026-07-23 LOG56LK DND → LHR Jul 23, 15:00 UTCJul 23, 16:25 UTC1h 25m
2026-07-23 LOG2LD DND → LHR Jul 23, 13:20 UTCJul 23, 13:55 UTC35m
2026-07-23 LOG1DL DND → KOI Jul 23, 11:15 UTCJul 23, 11:55 UTC40m
2026-07-23 LOG82WR LHR → DND Jul 23, 09:05 UTCJul 23, 10:30 UTC1h 25m
2026-07-23 LOG28RW DND → LCY Jul 23, 06:05 UTCJul 23, 07:40 UTC1h 35m
2026-07-22 LOG65KL LHR → DND Jul 22, 18:10 UTCJul 22, 19:40 UTC1h 30m
2026-07-22 LOG56LK DND → LHR Jul 22, 15:10 UTCJul 22, 16:40 UTC1h 30m
2026-07-21 LOG65KL LHR → DND Jul 21, 18:05 UTCJul 21, 19:30 UTC1h 25m
2026-07-21 LOG56LK DND → LHR Jul 21, 15:10 UTCJul 21, 16:40 UTC1h 30m
2026-07-21 LOG2LD DND → LHR Jul 21, 13:40 UTCJul 21, 14:20 UTC40m
2026-07-21 LOG56LK - Jul 21, 11:30 UTCJul 21, 12:15 UTC45m
2026-07-21 LOG82WR LHR → DND Jul 21, 09:10 UTCJul 21, 10:35 UTC1h 25m
2026-07-21 LOG28RW DND → LCY Jul 21, 06:05 UTCJul 21, 07:30 UTC1h 25m
2026-07-20 LOG65KL - Jul 20, 18:05 UTCJul 20, 19:25 UTC1h 20m
2026-07-20 LOG56LK - Jul 20, 15:00 UTCJul 20, 16:25 UTC1h 25m
2026-07-20 LOG1DL DND → KOI Jul 20, 13:20 UTCJul 20, 14:00 UTC40m
2026-07-20 LOG1DL DND → KOI Jul 20, 11:15 UTCJul 20, 12:00 UTC45m
2026-07-20 LOG82WR - Jul 20, 09:10 UTCJul 20, 10:30 UTC1h 20m
2026-07-20 LOG28RW - Jul 20, 06:10 UTCJul 20, 07:35 UTC1h 25m
2026-07-19 LOG65KL - Jul 19, 18:25 UTCJul 19, 19:45 UTC1h 20m
2026-07-19 LOG56LK - Jul 19, 15:05 UTCJul 19, 16:35 UTC1h 30m
2026-07-17 LOG65KL - Jul 17, 18:05 UTCJul 17, 19:25 UTC1h 20m
2026-07-17 LOG56LK - Jul 17, 15:05 UTCJul 17, 16:29 UTC1h 25m
2026-07-17 LOG2LD - Jul 17, 13:15 UTCJul 17, 13:50 UTC35m
2026-07-17 LOG1DL DND → KOI Jul 17, 11:30 UTCJul 17, 12:10 UTC40m
2026-07-17 LOG82WR - Jul 17, 08:59 UTCJul 17, 10:25 UTC1h 25m
2026-07-17 LOG28RW - Jul 17, 06:05 UTCJul 17, 07:40 UTC1h 35m
2026-07-16 LOG65KL - Jul 16, 18:15 UTCJul 16, 19:30 UTC1h 15m
2026-07-16 LOG56LK - Jul 16, 15:10 UTCJul 16, 16:35 UTC1h 25m
2026-07-16 LOG2LD - Jul 16, 13:30 UTCJul 16, 14:05 UTC35m
2026-07-16 LOG1DL - Jul 16, 11:25 UTCJul 16, 12:00 UTC35m
2026-07-16 LOG82WR - Jul 16, 09:15 UTCJul 16, 10:40 UTC1h 25m
2026-07-16 LOG28RW - Jul 16, 06:00 UTCJul 16, 07:40 UTC1h 40m
2026-07-15 LOG65KL - Jul 15, 18:15 UTCJul 15, 19:35 UTC1h 20m
2026-07-15 LOG56LK - Jul 15, 15:05 UTCJul 15, 16:35 UTC1h 30m
2026-07-15 LOG82WR - Jul 15, 09:00 UTCJul 15, 10:35 UTC1h 35m
2026-07-15 LOG28RW - Jul 15, 06:00 UTCJul 15, 07:40 UTC1h 40m
2026-07-14 LOG65KL - Jul 14, 18:05 UTCJul 14, 19:25 UTC1h 20m
2026-07-14 LOG56LK - Jul 14, 15:05 UTCJul 14, 16:40 UTC1h 35m
2026-07-14 LOG2LD - Jul 14, 13:45 UTCJul 14, 14:20 UTC35m
2026-07-14 LOG1DL - Jul 14, 11:45 UTCJul 14, 12:25 UTC40m
2026-07-14 LOG82WR - Jul 14, 09:35 UTCJul 14, 11:00 UTC1h 25m
2026-07-14 LOG28RW - Jul 14, 06:20 UTCJul 14, 07:55 UTC1h 35m

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

Mode-S 407981 frequently asked

What is Mode-S code 407981?
407981 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LMRA.
Where is Mode-S 407981 registered?
Mode-S code 407981 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 407981 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 19:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407981, octal 20074601, decimal 4,225,409.
What flights does 407981 operate?
Mode-S 407981 has broadcast 20 distinct callsigns, including LOG2WF, LOG26PQ, LOG56LK, LOG17ZA, LOG65KL.