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sensors Mode-S transponder

407045

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-LOYW · AIRBUS HELICOPTERS EC-145

Hex
407045
Octal
20070105
Decimal
4,223,045
Country
GB
Tail
G-LOYW
Type
EC45
No current signal · last broadcast Jul 26, 19:50 UTC
Flights observed
107
Distinct callsigns
5
Country
GB
Last broadcast
Jul 26, 19:50 UTC

Last known position

Most recent position reported by Mode-S 407045.

Country allocation

The ICAO 24-bit address 407045 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
HLE61 - 71 2026-07-26
HLE94Z - 12 2026-07-03
HLE59 - 11 2026-06-18
HLE57 - 7 2026-07-01
GAMA101P - 6 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HLE61 - Jul 26, 18:25 UTCJul 26, 19:50 UTC1h 25m
2026-07-26 HLE61 - Jul 26, 17:35 UTCJul 26, 17:55 UTC20m
2026-07-26 HLE61 - Jul 26, 15:40 UTCJul 26, 17:00 UTC1h 20m
2026-07-26 HLE61 - Jul 26, 14:40 UTCJul 26, 15:10 UTC30m
2026-07-26 HLE61 - Jul 26, 12:30 UTCJul 26, 13:20 UTC50m
2026-07-26 HLE61 - Jul 26, 10:35 UTCJul 26, 10:45 UTC10m
2026-07-26 HLE61 - Jul 26, 08:10 UTCJul 26, 08:35 UTC25m
2026-07-25 HLE61 - Jul 25, 15:30 UTCJul 25, 16:05 UTC35m
2026-07-25 HLE61 - Jul 25, 14:25 UTCJul 25, 14:40 UTC15m
2026-07-25 HLE61 - Jul 25, 13:20 UTCJul 25, 13:40 UTC20m
2026-07-25 HLE61 - Jul 25, 11:40 UTCJul 25, 12:30 UTC50m
2026-07-23 HLE61 - Jul 23, 19:15 UTCJul 23, 20:50 UTC1h 35m
2026-07-23 HLE61 - Jul 23, 16:40 UTCJul 23, 18:30 UTC1h 50m
2026-07-23 HLE61 - Jul 23, 15:30 UTCJul 23, 15:45 UTC15m
2026-07-22 HLE61 - Jul 22, 18:55 UTCJul 22, 19:15 UTC20m
2026-07-22 HLE61 - Jul 22, 16:35 UTCJul 22, 16:40 UTC5m
2026-07-22 HLE61 - Jul 22, 13:10 UTCJul 22, 13:20 UTC10m
2026-07-22 HLE61 - Jul 22, 11:55 UTCJul 22, 12:05 UTC10m
2026-07-22 HLE61 - Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-21 HLE61 - Jul 21, 17:15 UTCJul 21, 17:45 UTC30m
2026-07-21 HLE61 - Jul 21, 16:00 UTCJul 21, 16:30 UTC30m
2026-07-21 HLE61 - Jul 21, 15:10 UTCJul 21, 15:45 UTC35m
2026-07-21 HLE61 - Jul 21, 12:15 UTCJul 21, 13:10 UTC55m
2026-07-21 HLE61 - Jul 21, 10:15 UTCJul 21, 10:35 UTC20m
2026-07-21 HLE61 - Jul 21, 08:25 UTCJul 21, 08:50 UTC25m
2026-07-20 HLE61 - Jul 20, 17:25 UTCJul 20, 18:05 UTC40m
2026-07-20 HLE61 - Jul 20, 15:50 UTCJul 20, 16:10 UTC20m
2026-07-20 HLE61 - Jul 20, 14:40 UTCJul 20, 15:05 UTC25m
2026-07-20 HLE61 - Jul 20, 11:50 UTCJul 20, 12:05 UTC15m
2026-07-19 HLE61 - Jul 19, 20:15 UTCJul 19, 20:45 UTC30m
2026-07-19 HLE61 - Jul 19, 18:30 UTCJul 19, 19:35 UTC1h 5m
2026-07-19 HLE61 - Jul 19, 16:45 UTCJul 19, 17:30 UTC45m
2026-07-19 HLE61 - Jul 19, 15:40 UTCJul 19, 16:05 UTC25m
2026-07-18 HLE61 - Jul 18, 19:45 UTCJul 18, 19:50 UTC5m
2026-07-18 HLE61 - Jul 18, 18:00 UTCJul 18, 18:10 UTC10m
2026-07-18 HLE61 - Jul 18, 11:35 UTCJul 18, 11:45 UTC10m
2026-07-18 HLE61 - Jul 18, 09:35 UTCJul 18, 10:05 UTC30m
2026-07-18 HLE61 - Jul 18, 08:25 UTCJul 18, 08:50 UTC25m
2026-07-17 HLE61 - Jul 17, 18:55 UTCJul 17, 19:05 UTC10m
2026-07-17 HLE61 - Jul 17, 18:00 UTCJul 17, 18:19 UTC20m
2026-07-17 HLE61 - Jul 17, 16:44 UTCJul 17, 16:59 UTC15m
2026-07-17 HLE61 - Jul 17, 15:15 UTCJul 17, 15:29 UTC15m
2026-07-16 HLE61 - Jul 16, 15:00 UTCJul 16, 15:30 UTC30m
2026-07-15 HLE61 - Jul 15, 17:20 UTCJul 15, 17:35 UTC15m
2026-07-13 HLE61 - Jul 13, 18:45 UTCJul 13, 19:55 UTC1h 10m
2026-07-13 HLE61 - Jul 13, 12:15 UTCJul 13, 12:30 UTC15m
2026-07-13 HLE61 - Jul 13, 11:15 UTCJul 13, 11:35 UTC20m
2026-07-12 HLE61 - Jul 12, 17:20 UTCJul 12, 17:30 UTC10m
2026-07-12 HLE61 - Jul 12, 15:50 UTCJul 12, 16:25 UTC35m
2026-07-12 HLE61 - Jul 12, 14:25 UTCJul 12, 14:40 UTC15m

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

Mode-S 407045 frequently asked

What is Mode-S code 407045?
407045 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LOYW.
Where is Mode-S 407045 registered?
Mode-S code 407045 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 407045 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407045, octal 20070105, decimal 4,223,045.
What flights does 407045 operate?
Mode-S 407045 has broadcast 5 distinct callsigns, including HLE61, HLE94Z, HLE59, HLE57, GAMA101P.