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sensors Mode-S transponder

40108E

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-NESH · ROBINSON R-44 Raven

Hex
40108E
Octal
20010216
Decimal
4,198,542
Country
GB
Tail
G-NESH
Type
R44
No current signal · last broadcast 3d ago
Flights observed
154
Distinct callsigns
1
Country
GB
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 40108E.

Country allocation

The ICAO 24-bit address 40108E 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 1 distinct

Callsign Airline Flights Last seen
GNESH - 154 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 GNESH - Jul 10, 13:50 UTCJul 10, 14:25 UTC35m
2026-07-09 GNESH - Jul 9, 13:50 UTCJul 9, 14:25 UTC35m
2026-07-09 GNESH - Jul 9, 11:00 UTCJul 9, 13:05 UTC2h 5m
2026-07-09 GNESH - Jul 9, 08:25 UTCJul 9, 10:15 UTC1h 50m
2026-07-08 GNESH - Jul 8, 15:00 UTCJul 8, 16:25 UTC1h 25m
2026-07-08 GNESH - Jul 8, 12:00 UTCJul 8, 14:05 UTC2h 5m
2026-07-08 GNESH - Jul 8, 08:35 UTCJul 8, 10:50 UTC2h 15m
2026-07-07 GNESH - Jul 7, 15:00 UTCJul 7, 16:25 UTC1h 25m
2026-07-07 GNESH - Jul 7, 11:35 UTCJul 7, 13:50 UTC2h 15m
2026-07-07 GNESH - Jul 7, 08:35 UTCJul 7, 10:45 UTC2h 10m
2026-07-06 GNESH - Jul 6, 15:10 UTCJul 6, 16:15 UTC1h 5m
2026-07-06 GNESH - Jul 6, 12:15 UTCJul 6, 14:15 UTC2h 0m
2026-07-06 GNESH - Jul 6, 09:30 UTCJul 6, 11:25 UTC1h 55m
2026-07-01 GNESH - Jul 1, 14:00 UTCJul 1, 16:05 UTC2h 5m
2026-07-01 GNESH - Jul 1, 11:20 UTCJul 1, 13:15 UTC1h 55m
2026-07-01 GNESH - Jul 1, 08:35 UTCJul 1, 10:40 UTC2h 5m
2026-06-30 GNESH - Jun 30, 13:50 UTCJun 30, 15:50 UTC2h 0m
2026-06-30 GNESH - Jun 30, 11:05 UTCJun 30, 13:10 UTC2h 5m
2026-06-30 GNESH - Jun 30, 08:15 UTCJun 30, 10:25 UTC2h 10m
2026-06-29 GNESH - Jun 29, 15:00 UTCJun 29, 16:15 UTC1h 15m
2026-06-29 GNESH BLK → BLK Jun 29, 12:09 UTCJun 29, 14:09 UTC2h 0m
2026-06-29 GNESH - Jun 29, 09:05 UTCJun 29, 11:10 UTC2h 5m
2026-06-27 GNESH - Jun 27, 14:49 UTCJun 27, 15:00 UTC10m
2026-06-27 GNESH - Jun 27, 13:35 UTCJun 27, 14:14 UTC40m
2026-06-27 GNESH - Jun 27, 12:55 UTCJun 27, 13:04 UTC10m
2026-06-27 GNESH - Jun 27, 11:39 UTCJun 27, 12:19 UTC40m
2026-06-27 GNESH - Jun 27, 10:40 UTCJun 27, 11:00 UTC20m
2026-06-27 GNESH - Jun 27, 08:44 UTCJun 27, 09:29 UTC45m
2026-06-26 GNESH - Jun 26, 13:19 UTCJun 26, 14:19 UTC1h 0m
2026-06-25 GNESH - Jun 25, 18:00 UTCJun 25, 18:39 UTC40m
2026-06-25 GNESH - Jun 25, 15:20 UTCJun 25, 16:20 UTC1h 0m
2026-06-25 GNESH - Jun 25, 13:05 UTCJun 25, 14:39 UTC1h 35m
2026-06-25 GNESH - Jun 25, 10:35 UTCJun 25, 10:55 UTC20m
2026-06-23 GNESH - Jun 23, 11:40 UTCJun 23, 13:24 UTC1h 45m
2026-06-23 GNESH - Jun 23, 08:25 UTCJun 23, 10:19 UTC1h 55m
2026-06-22 GNESH - Jun 22, 14:14 UTCJun 22, 15:35 UTC1h 20m
2026-06-22 GNESH - Jun 22, 11:35 UTCJun 22, 13:29 UTC1h 55m
2026-06-22 GNESH - Jun 22, 08:40 UTCJun 22, 10:40 UTC2h 0m
2026-06-20 GNESH - Jun 20, 09:29 UTCJun 20, 10:20 UTC50m
2026-06-19 GNESH - Jun 19, 13:04 UTCJun 19, 14:19 UTC1h 15m
2026-06-19 GNESH - Jun 19, 11:09 UTCJun 19, 12:29 UTC1h 20m
2026-06-19 GNESH - Jun 19, 08:59 UTCJun 19, 10:35 UTC1h 35m
2026-06-18 GNESH - Jun 18, 15:15 UTCJun 18, 16:10 UTC55m
2026-06-17 GNESH PSL → NCL Jun 17, 14:20 UTCJun 17, 16:20 UTC2h 0m
2026-06-17 GNESH - Jun 17, 11:30 UTCJun 17, 13:35 UTC2h 5m
2026-06-17 GNESH - Jun 17, 09:05 UTCJun 17, 10:45 UTC1h 40m
2026-06-16 GNESH - Jun 16, 13:40 UTCJun 16, 14:45 UTC1h 5m
2026-06-16 GNESH - Jun 16, 12:55 UTCJun 16, 13:04 UTC10m
2026-06-15 GNESH - Jun 15, 13:34 UTCJun 15, 14:45 UTC1h 10m
2026-06-15 GNESH - Jun 15, 10:35 UTCJun 15, 12:10 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-NESH page for operator, model, and routing details .

Mode-S 40108E frequently asked

What is Mode-S code 40108E?
40108E is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-NESH.
Where is Mode-S 40108E registered?
Mode-S code 40108E 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 40108E broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40108E, octal 20010216, decimal 4,198,542.
What flights does 40108E operate?
Mode-S 40108E has broadcast 1 distinct callsign, including GNESH.