Apparatus

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sensors Mode-S transponder

40814A

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
40814A
Octal
20100512
Decimal
4,227,402
Country
GB
Tail
G-PEMB
Type
AT76
No current signal · last broadcast Jul 26, 19:50 UTC
Flights observed
320
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 19:50 UTC

Last known position

Most recent position reported by Mode-S 40814A.

Country allocation

The ICAO 24-bit address 40814A 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
AUR41LC Aurigny Air Services 13 2026-07-26
AUR40LC Aurigny Air Services 13 2026-07-26
AUR31J Aurigny Air Services 13 2026-07-23
AUR30J Aurigny Air Services 13 2026-07-23
AUR39J - 11 2026-07-20
AUR38J - 11 2026-07-20
AUR601Y - 10 2026-07-19
AUR611Y Aurigny Air Services 9 2026-07-22
AUR600A Aurigny Air Services 9 2026-07-19
AUR59H - 9 2026-07-20
AUR58H - 9 2026-07-20
AUR605Y Aurigny Air Services 8 2026-07-21
AUR604A Aurigny Air Services 8 2026-07-21
AUR610A Aurigny Air Services 7 2026-07-22
AUR51H Aurigny Air Services 7 2026-07-24
AUR50H Aurigny Air Services 7 2026-07-24
AUR87DB Aurigny Air Services 6 2026-07-23
AUR79B - 6 2026-07-17
AUR681 - 6 2026-07-17
AUR680 - 6 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AUR41LC LCY → GCI Jul 26, 18:45 UTCJul 26, 19:45 UTC1h 0m
2026-07-26 AUR40LC GCI → LCY Jul 26, 16:45 UTCJul 26, 17:45 UTC1h 0m
2026-07-26 AUR621 LGW → GCI Jul 26, 15:10 UTCJul 26, 15:50 UTC40m
2026-07-26 AUR620 GCI → LGW Jul 26, 13:20 UTCJul 26, 14:10 UTC50m
2026-07-25 AUR85HG GRQ → GCI Jul 25, 11:55 UTCJul 25, 13:50 UTC1h 55m
2026-07-25 AUR84HG GCI → GRQ Jul 25, 09:10 UTCJul 25, 11:00 UTC1h 50m
2026-07-24 AUR41LC LCY → GCI Jul 24, 18:30 UTCJul 24, 19:30 UTC1h 0m
2026-07-24 AUR40LC GCI → LCY Jul 24, 16:35 UTCJul 24, 17:35 UTC1h 0m
2026-07-24 AUR621 LGW → GCI Jul 24, 14:25 UTCJul 24, 15:05 UTC40m
2026-07-24 AUR620 GCI → LGW Jul 24, 12:45 UTCJul 24, 13:35 UTC50m
2026-07-24 AUR3LG LGW → GCI Jul 24, 10:15 UTCJul 24, 11:00 UTC45m
2026-07-24 AUR2LG GCI → LGW Jul 24, 08:30 UTCJul 24, 09:10 UTC40m
2026-07-24 AUR51H SOU → GCI Jul 24, 07:05 UTCJul 24, 07:40 UTC35m
2026-07-24 AUR50H GCI → SOU Jul 24, 06:00 UTCJul 24, 06:35 UTC35m
2026-07-23 AUR41LC LCY → GCI Jul 23, 18:35 UTCJul 23, 19:35 UTC1h 0m
2026-07-23 AUR40LC GCI → LCY Jul 23, 16:40 UTCJul 23, 17:40 UTC1h 0m
2026-07-23 AUR87DB DUB → GCI Jul 23, 11:25 UTCJul 23, 12:45 UTC1h 20m
2026-07-23 AUR86DB GCI → DUB Jul 23, 08:50 UTCJul 23, 10:05 UTC1h 15m
2026-07-23 AUR31J JER → GCI Jul 23, 07:20 UTCJul 23, 07:35 UTC15m
2026-07-23 AUR30J GCI → JER Jul 23, 06:20 UTCJul 23, 06:30 UTC10m
2026-07-22 AUR611Y LGW → GCI Jul 22, 19:20 UTCJul 22, 20:00 UTC40m
2026-07-22 AUR610A LGW → GCI Jul 22, 17:10 UTCJul 22, 18:00 UTC50m
2026-07-22 AUR607Y LGW → GCI Jul 22, 15:50 UTCJul 22, 16:25 UTC35m
2026-07-22 AUR606A GCI → LGW Jul 22, 13:50 UTCJul 22, 14:50 UTC1h 0m
2026-07-22 AUR9BM - Jul 22, 12:05 UTCJul 22, 13:00 UTC55m
2026-07-21 AUR9LG LGW → GCI Jul 21, 17:40 UTCJul 21, 18:25 UTC45m
2026-07-21 AUR8LG GCI → LGW Jul 21, 15:50 UTCJul 21, 16:40 UTC50m
2026-07-21 AUR43D BRS → GCI Jul 21, 14:15 UTCJul 21, 14:55 UTC40m
2026-07-21 AUR42D GCI → BRS Jul 21, 12:50 UTCJul 21, 13:30 UTC40m
2026-07-21 AUR605Y LGW → GCI Jul 21, 11:10 UTCJul 21, 11:50 UTC40m
2026-07-21 AUR604A GCI → LGW Jul 21, 09:30 UTCJul 21, 10:20 UTC50m
2026-07-21 AUR401 LCY → GCI Jul 21, 07:30 UTCJul 21, 08:25 UTC55m
2026-07-21 AUR400 GCI → STN Jul 21, 05:45 UTCJul 21, 06:45 UTC1h 0m
2026-07-20 AUR59H SOU → GCI Jul 20, 18:55 UTCJul 20, 19:25 UTC30m
2026-07-20 AUR58H - Jul 20, 17:35 UTCJul 20, 18:10 UTC35m
2026-07-20 AUR39J - Jul 20, 16:35 UTCJul 20, 16:50 UTC15m
2026-07-20 AUR38J - Jul 20, 15:45 UTCJul 20, 15:55 UTC10m
2026-07-20 AUR57H SOU → GCI Jul 20, 12:20 UTCJul 20, 12:55 UTC35m
2026-07-20 AUR56H GCI → SOU Jul 20, 11:10 UTCJul 20, 11:40 UTC30m
2026-07-20 AUR401 LCY → GCI Jul 20, 07:35 UTCJul 20, 08:35 UTC1h 0m
2026-07-20 AUR400 GCI → STN Jul 20, 05:50 UTCJul 20, 06:50 UTC1h 0m
2026-07-19 AUR41LC LCY → GCI Jul 19, 18:25 UTCJul 19, 19:20 UTC55m
2026-07-19 AUR40LC GCI → LCY Jul 19, 16:30 UTCJul 19, 17:30 UTC1h 0m
2026-07-19 AUR57H SOU → GCI Jul 19, 15:10 UTCJul 19, 15:40 UTC30m
2026-07-19 AUR56H - Jul 19, 13:45 UTCJul 19, 14:15 UTC30m
2026-07-19 AUR605Y LGW → GCI Jul 19, 11:20 UTCJul 19, 12:05 UTC45m
2026-07-19 AUR604A GCI → LGW Jul 19, 09:25 UTCJul 19, 10:15 UTC50m
2026-07-19 AUR601Y LGW → GCI Jul 19, 08:00 UTCJul 19, 08:45 UTC45m
2026-07-19 AUR600A GCI → LGW Jul 19, 06:05 UTCJul 19, 06:45 UTC40m
2026-07-18 AUR611Y LGW → GCI Jul 18, 19:25 UTCJul 18, 20:05 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-PEMB page for operator, model, and routing details .

Mode-S 40814A frequently asked

What is Mode-S code 40814A?
40814A is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-PEMB.
Where is Mode-S 40814A registered?
Mode-S code 40814A 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 40814A 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 40814A, octal 20100512, decimal 4,227,402.
What flights does 40814A operate?
Mode-S 40814A has broadcast 20 distinct callsigns, including AUR41LC, AUR40LC, AUR31J, AUR30J, AUR39J.