Apparatus

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sensors Mode-S transponder

407DE4

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-LMRX · ATR-72-500

Hex
407DE4
Octal
20076744
Decimal
4,226,532
Country
GB
Tail
G-LMRX
Type
AT75
No current signal · last broadcast 27d ago
Flights observed
107
Distinct callsigns
5
Country
GB
Last broadcast
27d ago

Last known position

Most recent position reported by Mode-S 407DE4.

Country allocation

The ICAO 24-bit address 407DE4 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 5 distinct

Callsign Airline Flights Last seen
LOG762A - 50 2026-06-15
LOG763 Loganair 48 2026-06-15
LOG756 - 5 2026-06-04
LOG757 Loganair 3 2026-06-04
LOG915M Loganair 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-16 LOG915M SOF → ABZ Jun 16, 09:10 UTCJun 16, 14:05 UTC4h 55m
2026-06-15 LOG763 KOI → GLA Jun 15, 15:45 UTCJun 15, 16:30 UTC45m
2026-06-15 LOG762A - Jun 15, 06:49 UTCJun 15, 07:29 UTC40m
2026-06-13 LOG763 KOI → GLA Jun 13, 14:50 UTCJun 13, 15:25 UTC35m
2026-06-13 LOG762A - Jun 13, 06:25 UTCJun 13, 07:05 UTC40m
2026-06-12 LOG763 KOI → GLA Jun 12, 15:40 UTCJun 12, 16:20 UTC40m
2026-06-12 LOG762A - Jun 12, 07:00 UTCJun 12, 07:35 UTC35m
2026-06-11 LOG763 KOI → GLA Jun 11, 15:50 UTCJun 11, 16:25 UTC35m
2026-06-11 LOG762A GLA → KOI Jun 11, 06:55 UTCJun 11, 07:30 UTC35m
2026-06-10 LOG763 KOI → GLA Jun 10, 15:25 UTCJun 10, 16:00 UTC35m
2026-06-10 LOG762A GLA → KOI Jun 10, 06:45 UTCJun 10, 07:25 UTC40m
2026-06-09 LOG763 KOI → GLA Jun 9, 16:45 UTCJun 9, 17:40 UTC55m
2026-06-09 LOG762A GLA → KOI Jun 9, 06:50 UTCJun 9, 07:25 UTC35m
2026-06-08 LOG763 KOI → GLA Jun 8, 15:50 UTCJun 8, 16:25 UTC35m
2026-06-08 LOG762A GLA → KOI Jun 8, 06:50 UTCJun 8, 07:30 UTC40m
2026-06-06 LOG763 KOI → GLA Jun 6, 14:34 UTCJun 6, 15:25 UTC50m
2026-06-06 LOG762A GLA → KOI Jun 6, 06:55 UTCJun 6, 07:30 UTC35m
2026-06-05 LOG763 KOI → GLA Jun 5, 15:25 UTCJun 5, 16:15 UTC50m
2026-06-05 LOG762A GLA → KOI Jun 5, 06:45 UTCJun 5, 07:20 UTC35m
2026-06-04 LOG757 GLA → GLA Jun 4, 15:30 UTCJun 4, 16:10 UTC40m
2026-06-04 LOG756 - Jun 4, 06:50 UTCJun 4, 07:35 UTC45m
2026-06-03 LOG756 - Jun 3, 10:55 UTCJun 3, 11:50 UTC55m
2026-06-03 LOG756 - Jun 3, 07:55 UTCJun 3, 08:35 UTC40m
2026-06-02 LOG763 KOI → GLA Jun 2, 15:55 UTCJun 2, 16:30 UTC35m
2026-06-02 LOG762A GLA → KOI Jun 2, 07:35 UTCJun 2, 08:15 UTC40m
2026-06-01 LOG757 GLA → GLA Jun 1, 15:35 UTCJun 1, 16:20 UTC45m
2026-06-01 LOG756 - Jun 1, 06:30 UTCJun 1, 07:15 UTC45m
2026-05-30 LOG763 KOI → GLA May 30, 15:10 UTCMay 30, 15:45 UTC35m
2026-05-30 LOG762A GLA → KOI May 30, 06:55 UTCMay 30, 07:30 UTC35m
2026-05-29 LOG763 KOI → GLA May 29, 15:50 UTCMay 29, 16:30 UTC40m
2026-05-29 LOG763 KOI → GLA May 29, 07:05 UTCMay 29, 07:40 UTC35m
2026-05-28 LOG763 KOI → GLA May 28, 15:40 UTCMay 28, 16:25 UTC45m
2026-05-28 LOG762A GLA → KOI May 28, 06:50 UTCMay 28, 07:30 UTC40m
2026-05-27 LOG763 KOI → GLA May 27, 15:50 UTCMay 27, 16:30 UTC40m
2026-05-27 LOG762A GLA → KOI May 27, 07:15 UTCMay 27, 08:00 UTC45m
2026-05-26 LOG763 KOI → GLA May 26, 16:40 UTCMay 26, 17:15 UTC35m
2026-05-26 LOG762A GLA → KOI May 26, 06:39 UTCMay 26, 07:19 UTC40m
2026-05-23 LOG763 KOI → GLA May 23, 15:05 UTCMay 23, 15:50 UTC45m
2026-05-23 LOG762A GLA → KOI May 23, 06:55 UTCMay 23, 07:30 UTC35m
2026-05-22 LOG763 KOI → GLA May 22, 15:35 UTCMay 22, 16:20 UTC45m
2026-05-22 LOG762A GLA → KOI May 22, 06:55 UTCMay 22, 07:30 UTC35m
2026-05-21 LOG763 KOI → GLA May 21, 15:30 UTCMay 21, 16:15 UTC45m
2026-05-21 LOG762A GLA → KOI May 21, 06:50 UTCMay 21, 07:30 UTC40m
2026-05-20 LOG763 KOI → GLA May 20, 15:55 UTCMay 20, 16:35 UTC40m
2026-05-20 LOG762A GLA → KOI May 20, 06:45 UTCMay 20, 07:35 UTC50m
2026-05-19 LOG763 KOI → GLA May 19, 15:30 UTCMay 19, 16:30 UTC1h 0m
2026-05-19 LOG762A GLA → KOI May 19, 06:45 UTCMay 19, 07:35 UTC50m
2026-05-18 LOG763 KOI → GLA May 18, 15:40 UTCMay 18, 16:35 UTC55m
2026-05-18 LOG762A GLA → KOI May 18, 06:40 UTCMay 18, 07:30 UTC50m
2026-05-16 LOG763 KOI → GLA May 16, 14:46 UTCMay 16, 15:25 UTC40m

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

Mode-S 407DE4 frequently asked

What is Mode-S code 407DE4?
407DE4 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LMRX.
Where is Mode-S 407DE4 registered?
Mode-S code 407DE4 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 407DE4 broadcasting right now?
No active broadcast right now. Last signal was 27d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407DE4, octal 20076744, decimal 4,226,532.
What flights does 407DE4 operate?
Mode-S 407DE4 has broadcast 5 distinct callsigns, including LOG762A, LOG763, LOG756, LOG757, LOG915M.