Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

407734

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-MGPS · AGUSTA AW-169

Hex
407734
Octal
20073464
Decimal
4,224,820
Country
GB
Tail
G-MGPS
Type
A169
No current signal · last broadcast 15d ago
Flights observed
188
Distinct callsigns
7
Country
GB
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S 407734.

Country allocation

The ICAO 24-bit address 407734 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 7 distinct

Callsign Airline Flights Last seen
HLE10 - 83 2026-05-26
HLE60 - 56 2026-07-26
HLE21 - 42 2026-07-26
HLE94 - 4 2026-07-05
HLE04 - 1 2026-05-27
GMGPS - 1 2026-05-08
GMA102M - 1 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HLE60 - Jul 26, 22:40 UTCJul 26, 23:00 UTC20m
2026-07-26 HLE60 - Jul 26, 21:20 UTCJul 26, 21:40 UTC20m
2026-07-26 HLE60 - Jul 26, 20:35 UTCJul 26, 20:45 UTC10m
2026-07-26 HLE21 - Jul 26, 18:20 UTCJul 26, 19:05 UTC45m
2026-07-26 HLE21 - Jul 26, 17:25 UTCJul 26, 17:40 UTC15m
2026-07-26 HLE21 - Jul 26, 16:55 UTCJul 26, 17:05 UTC10m
2026-07-26 HLE21 - Jul 26, 15:20 UTCJul 26, 15:45 UTC25m
2026-07-26 HLE21 - Jul 26, 14:00 UTCJul 26, 14:20 UTC20m
2026-07-26 HLE21 - Jul 26, 13:40 UTCJul 26, 13:55 UTC15m
2026-07-26 HLE21 - Jul 26, 11:35 UTCJul 26, 11:45 UTC10m
2026-07-26 HLE21 - Jul 26, 08:55 UTCJul 26, 09:15 UTC20m
2026-07-25 HLE60 - Jul 25, 17:25 UTCJul 25, 17:40 UTC15m
2026-07-25 HLE60 - Jul 25, 14:10 UTCJul 25, 14:25 UTC15m
2026-07-25 HLE60 - Jul 25, 12:50 UTCJul 25, 13:55 UTC1h 5m
2026-07-25 HLE60 - Jul 25, 11:10 UTCJul 25, 11:35 UTC25m
2026-07-25 HLE60 - Jul 25, 01:25 UTCJul 25, 01:35 UTC10m
2026-07-24 HLE60 - Jul 24, 19:25 UTCJul 24, 19:55 UTC30m
2026-07-24 HLE60 - Jul 24, 09:25 UTCJul 24, 09:35 UTC10m
2026-07-24 HLE60 - Jul 24, 08:25 UTCJul 24, 08:35 UTC10m
2026-07-24 HLE60 - Jul 24, 07:20 UTCJul 24, 07:35 UTC15m
2026-07-22 HLE21 - Jul 22, 13:45 UTCJul 22, 14:00 UTC15m
2026-07-22 HLE21 - Jul 22, 12:45 UTCJul 22, 12:55 UTC10m
2026-07-21 HLE21 - Jul 21, 15:30 UTCJul 21, 15:55 UTC25m
2026-07-21 HLE21 - Jul 21, 09:25 UTCJul 21, 09:45 UTC20m
2026-07-21 HLE21 - Jul 21, 07:55 UTCJul 21, 09:20 UTC1h 25m
2026-07-20 HLE21 - Jul 20, 11:10 UTCJul 20, 11:20 UTC10m
2026-07-20 HLE21 - Jul 20, 10:45 UTCJul 20, 11:00 UTC15m
2026-07-20 HLE21 - Jul 20, 09:55 UTCJul 20, 10:10 UTC15m
2026-07-20 HLE21 - Jul 20, 08:55 UTCJul 20, 09:05 UTC10m
2026-07-20 HLE60 - Jul 20, 00:10 UTCJul 20, 00:30 UTC20m
2026-07-19 HLE60 - Jul 19, 23:00 UTCJul 19, 23:15 UTC15m
2026-07-19 HLE60 LGW → LGW Jul 19, 16:20 UTCJul 19, 16:25 UTC5m
2026-07-19 HLE60 - Jul 19, 15:35 UTCJul 19, 15:45 UTC10m
2026-07-19 HLE60 - Jul 19, 14:15 UTCJul 19, 14:25 UTC10m
2026-07-19 HLE60 - Jul 19, 13:50 UTCJul 19, 14:00 UTC10m
2026-07-19 HLE60 - Jul 19, 12:35 UTCJul 19, 12:45 UTC10m
2026-07-18 HLE60 - Jul 18, 17:40 UTCJul 18, 17:55 UTC15m
2026-07-18 HLE60 - Jul 18, 15:25 UTCJul 18, 15:35 UTC10m
2026-07-18 HLE60 - Jul 18, 13:45 UTCJul 18, 14:00 UTC15m
2026-07-18 HLE60 - Jul 18, 09:00 UTCJul 18, 09:15 UTC15m
2026-07-18 HLE60 - Jul 18, 08:10 UTCJul 18, 08:25 UTC15m
2026-07-18 HLE60 - Jul 18, 06:50 UTCJul 18, 07:05 UTC15m
2026-07-17 HLE21 - Jul 17, 19:00 UTCJul 17, 19:09 UTC10m
2026-07-17 HLE21 - Jul 17, 17:55 UTCJul 17, 18:05 UTC10m
2026-07-17 HLE21 - Jul 17, 16:34 UTCJul 17, 16:49 UTC15m
2026-07-17 HLE21 - Jul 17, 13:35 UTCJul 17, 13:45 UTC10m
2026-07-17 HLE21 - Jul 17, 12:15 UTCJul 17, 12:35 UTC20m
2026-07-17 HLE21 - Jul 17, 10:55 UTCJul 17, 11:20 UTC25m
2026-07-16 HLE60 - Jul 16, 15:55 UTCJul 16, 16:09 UTC15m
2026-07-16 HLE60 - Jul 16, 15:00 UTCJul 16, 15:14 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-MGPS page for operator, model, and routing details .

Mode-S 407734 frequently asked

What is Mode-S code 407734?
407734 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-MGPS.
Where is Mode-S 407734 registered?
Mode-S code 407734 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 407734 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407734, octal 20073464, decimal 4,224,820.
What flights does 407734 operate?
Mode-S 407734 has broadcast 7 distinct callsigns, including HLE10, HLE60, HLE21, HLE94, HLE04.