Apparatus

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sensors Mode-S transponder

4080FE

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-NHVX · AGUSTA AW-139

Hex
4080FE
Octal
20100376
Decimal
4,227,326
Country
GB
Tail
G-NHVX
Type
A139
No current signal · last broadcast 12d ago
Flights observed
292
Distinct callsigns
3
Country
GB
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S 4080FE.

Country allocation

The ICAO 24-bit address 4080FE 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 3 distinct

Callsign Airline Flights Last seen
NHZ25 - 276 2026-07-01
NHZ25A - 15 2026-06-02
NHZ23A - 1 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-01 NHZ25 - Jul 1, 16:30 UTCJul 1, 16:45 UTC15m
2026-07-01 NHZ25 - Jul 1, 14:40 UTCJul 1, 15:50 UTC1h 10m
2026-07-01 NHZ25 - Jul 1, 14:05 UTCJul 1, 14:30 UTC25m
2026-07-01 NHZ25 - Jul 1, 12:20 UTCJul 1, 13:10 UTC50m
2026-07-01 NHZ25 - Jul 1, 08:15 UTCJul 1, 08:30 UTC15m
2026-06-30 NHZ25 - Jun 30, 14:45 UTCJun 30, 15:00 UTC15m
2026-06-30 NHZ25 - Jun 30, 12:10 UTCJun 30, 12:25 UTC15m
2026-06-30 NHZ25 - Jun 30, 10:15 UTCJun 30, 10:30 UTC15m
2026-06-30 NHZ25 - Jun 30, 08:00 UTCJun 30, 08:10 UTC10m
2026-06-30 NHZ25 - Jun 30, 06:00 UTCJun 30, 06:55 UTC55m
2026-06-29 NHZ25 NWI → NWI Jun 29, 07:44 UTCJun 29, 08:04 UTC20m
2026-06-28 NHZ25 - Jun 28, 16:25 UTCJun 28, 16:39 UTC15m
2026-06-28 NHZ25 - Jun 28, 14:54 UTCJun 28, 15:09 UTC15m
2026-06-28 NHZ25 BLK → NWI Jun 28, 09:25 UTCJun 28, 10:44 UTC1h 20m
2026-06-28 NHZ25 BLK → BLK Jun 28, 07:05 UTCJun 28, 07:50 UTC45m
2026-06-26 NHZ25 BLK → BLK Jun 26, 15:54 UTCJun 26, 16:39 UTC45m
2026-06-26 NHZ25 BLK → BLK Jun 26, 06:50 UTCJun 26, 07:30 UTC40m
2026-06-25 NHZ25 BLK → BLK Jun 25, 17:20 UTCJun 25, 17:54 UTC35m
2026-06-25 NHZ25 BLK → BLK Jun 25, 14:44 UTCJun 25, 15:44 UTC1h 0m
2026-06-25 NHZ25 BLK → BLK Jun 25, 12:50 UTCJun 25, 13:55 UTC1h 5m
2026-06-25 NHZ25 BLK → BLK Jun 25, 07:59 UTCJun 25, 08:30 UTC30m
2026-06-25 NHZ25 BLK → BLK Jun 25, 06:50 UTCJun 25, 07:39 UTC50m
2026-06-24 NHZ25 - Jun 24, 16:34 UTCJun 24, 16:50 UTC15m
2026-06-24 NHZ25 - Jun 24, 15:59 UTCJun 24, 16:09 UTC10m
2026-06-24 NHZ25 - Jun 24, 15:24 UTCJun 24, 15:35 UTC10m
2026-06-24 NHZ25 - Jun 24, 15:00 UTCJun 24, 15:14 UTC15m
2026-06-24 NHZ25 - Jun 24, 08:09 UTCJun 24, 08:39 UTC30m
2026-06-24 NHZ25 BLK → BLK Jun 24, 06:55 UTCJun 24, 07:44 UTC50m
2026-06-23 NHZ25 - Jun 23, 16:44 UTCJun 23, 16:59 UTC15m
2026-06-23 NHZ25 - Jun 23, 15:55 UTCJun 23, 16:05 UTC10m
2026-06-23 NHZ25 BLK → BLK Jun 23, 08:25 UTCJun 23, 08:59 UTC35m
2026-06-23 NHZ25 - Jun 23, 07:55 UTCJun 23, 08:04 UTC10m
2026-06-23 NHZ25 - Jun 23, 06:55 UTCJun 23, 07:05 UTC10m
2026-06-22 NHZ25 - Jun 22, 16:50 UTCJun 22, 17:00 UTC10m
2026-06-22 NHZ25 - Jun 22, 15:59 UTCJun 22, 16:10 UTC10m
2026-06-22 NHZ25 - Jun 22, 08:19 UTCJun 22, 09:00 UTC40m
2026-06-22 NHZ25 - Jun 22, 07:19 UTCJun 22, 07:30 UTC10m
2026-06-21 NHZ25 - Jun 21, 17:20 UTCJun 21, 18:00 UTC40m
2026-06-21 NHZ25 - Jun 21, 16:59 UTCJun 21, 17:15 UTC15m
2026-06-21 NHZ25 - Jun 21, 09:29 UTCJun 21, 09:44 UTC15m
2026-06-21 NHZ25 - Jun 21, 07:59 UTCJun 21, 09:24 UTC1h 25m
2026-06-21 NHZ25 - Jun 21, 07:04 UTCJun 21, 07:14 UTC10m
2026-06-20 NHZ25 BLK → BLK Jun 20, 17:39 UTCJun 20, 18:34 UTC55m
2026-06-20 NHZ25 - Jun 20, 12:50 UTCJun 20, 13:04 UTC15m
2026-06-20 NHZ25 - Jun 20, 12:24 UTCJun 20, 12:34 UTC10m
2026-06-20 NHZ25 - Jun 20, 11:59 UTCJun 20, 12:14 UTC15m
2026-06-19 NHZ25 BLK → BLK Jun 19, 06:59 UTCJun 19, 08:20 UTC1h 20m
2026-06-18 NHZ25 BLK → BLK Jun 18, 09:20 UTCJun 18, 10:30 UTC1h 10m
2026-06-17 NHZ25 BLK → BLK Jun 17, 17:10 UTCJun 17, 18:20 UTC1h 10m
2026-06-17 NHZ25 BLK → BLK Jun 17, 12:55 UTCJun 17, 14:10 UTC1h 15m

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

Mode-S 4080FE frequently asked

What is Mode-S code 4080FE?
4080FE is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-NHVX.
Where is Mode-S 4080FE registered?
Mode-S code 4080FE 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 4080FE broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4080FE, octal 20100376, decimal 4,227,326.
What flights does 4080FE operate?
Mode-S 4080FE has broadcast 3 distinct callsigns, including NHZ25, NHZ25A, NHZ23A.