sensors Mode-S transponder

4082F2

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-NJAJ · CESSNA 560XL Citation XLS

Hex
4082F2
Octal
20101362
Decimal
4,227,826
Country
GB
Tail
G-NJAJ
Type
C56X
No current signal · last broadcast 2h ago
Flights observed
167
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4082F2.

Country allocation

The ICAO 24-bit address 4082F2 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
NJU6UA - 28 2026-07-18
NJU919R - 2 2026-06-04
NJU675M - 2 2026-05-01
NJU557C - 2 2026-04-19
NJU500A - 2 2026-06-05
NJU386U - 2 2026-07-09
NJU258L - 2 2026-05-28
NJU194R - 2 2026-04-30
NJU159Q - 2 2026-06-16
NJU997F - 1 2026-07-07
NJU986U - 1 2026-04-22
NJU973A - 1 2026-05-01
NJU972U - 1 2026-04-23
NJU948N - 1 2026-05-30
NJU947F - 1 2026-04-28
NJU942E - 1 2026-04-28
NJU940D - 1 2026-04-24
NJU924M - 1 2026-07-10
NJU922R - 1 2026-07-05
NJU919N - 1 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 NJU457R - Jul 19, 11:15 UTCJul 19, 12:35 UTC1h 20m
2026-07-18 NJU423W - Jul 18, 13:30 UTCJul 18, 15:15 UTC1h 45m
2026-07-18 NJU849R - Jul 18, 10:30 UTCJul 18, 12:10 UTC1h 40m
2026-07-18 NJU6UA - Jul 18, 07:50 UTCJul 18, 08:30 UTC40m
2026-07-17 NJU460Y LPL → AMS Jul 17, 16:29 UTCJul 17, 17:35 UTC1h 5m
2026-07-17 NJU453L EDI → LPL Jul 17, 13:29 UTCJul 17, 14:15 UTC45m
2026-07-17 NJU158A - Jul 17, 10:50 UTCJul 17, 11:39 UTC50m
2026-07-17 NJU539Y - Jul 17, 08:59 UTCJul 17, 09:15 UTC15m
2026-07-16 NJU420V LPL → NHT Jul 16, 15:49 UTCJul 16, 16:25 UTC35m
2026-07-16 NJU377Q - Jul 16, 08:05 UTCJul 16, 08:55 UTC50m
2026-07-15 NJU750E EDI → ABZ Jul 15, 16:10 UTCJul 15, 16:40 UTC30m
2026-07-15 NJU528H - Jul 15, 13:25 UTCJul 15, 14:20 UTC55m
2026-07-15 NJU6UA - Jul 15, 10:40 UTCJul 15, 11:35 UTC55m
2026-07-13 NJU6UA - Jul 13, 09:10 UTCJul 13, 10:05 UTC55m
2026-07-12 NJU6UA - Jul 12, 15:25 UTCJul 12, 16:35 UTC1h 10m
2026-07-12 NJU6UA - Jul 12, 12:55 UTCJul 12, 14:35 UTC1h 40m
2026-07-12 NJU6UA - Jul 12, 10:40 UTCJul 12, 11:45 UTC1h 5m
2026-07-11 NJU130R - Jul 11, 14:10 UTCJul 11, 14:35 UTC25m
2026-07-11 NJU590E ORK → STN Jul 11, 11:50 UTCJul 11, 12:55 UTC1h 5m
2026-07-10 NJU6UA CBG → ORK Jul 10, 15:30 UTCJul 10, 16:35 UTC1h 5m
2026-07-10 NJU6UA ORK → CBG Jul 10, 11:35 UTCJul 10, 12:45 UTC1h 10m
2026-07-10 NJU924M - Jul 10, 09:00 UTCJul 10, 09:55 UTC55m
2026-07-09 NJU386U - Jul 9, 14:35 UTCJul 9, 15:30 UTC55m
2026-07-09 NJU386U - Jul 9, 12:15 UTCJul 9, 13:00 UTC45m
2026-07-09 NJU224K LCY → BQH Jul 9, 10:10 UTCJul 9, 10:20 UTC10m
2026-07-08 NJU101E - Jul 8, 18:00 UTCJul 8, 19:00 UTC1h 0m
2026-07-08 NJU187C LCY → HUY Jul 8, 08:25 UTCJul 8, 09:00 UTC35m
2026-07-07 NJU997F - Jul 7, 14:45 UTCJul 7, 16:15 UTC1h 30m
2026-07-07 NJU655D - Jul 7, 10:25 UTCJul 7, 11:55 UTC1h 30m
2026-07-05 NJU922R NQY → LTN Jul 5, 12:00 UTCJul 5, 12:50 UTC50m
2026-07-05 NJU110K - Jul 5, 09:45 UTCJul 5, 10:20 UTC35m
2026-07-04 NJU267A - Jul 4, 16:45 UTCJul 4, 17:45 UTC1h 0m
2026-07-04 NJU394W - Jul 4, 14:10 UTCJul 4, 14:55 UTC45m
2026-07-04 NJU213F EMA → NQY Jul 4, 11:05 UTCJul 4, 11:50 UTC45m
2026-07-04 NJU313H GCI → EMA Jul 4, 09:30 UTCJul 4, 10:20 UTC50m
2026-07-03 NJU6UA NCL → GCI Jul 3, 08:45 UTCJul 3, 09:45 UTC1h 0m
2026-07-03 NJU6UA BOH → NCL Jul 3, 06:25 UTCJul 3, 07:20 UTC55m
2026-07-01 NJU6UA - Jul 1, 12:05 UTCJul 1, 12:40 UTC35m
2026-06-30 NJU6UA - Jun 30, 17:15 UTCJun 30, 17:55 UTC40m
2026-06-30 NJU693T ZRH → LBG Jun 30, 14:45 UTCJun 30, 15:40 UTC55m
2026-06-30 NJU663M - Jun 30, 12:10 UTCJun 30, 13:35 UTC1h 25m
2026-06-29 NJU616Y BRS → LTN Jun 29, 19:20 UTCJun 29, 19:49 UTC30m
2026-06-29 NJU568L GCI → BRS Jun 29, 16:59 UTCJun 29, 17:34 UTC35m
2026-06-29 NJU048H - Jun 29, 10:40 UTCJun 29, 11:10 UTC30m
2026-06-20 NJU131K CEQ → FAB Jun 20, 13:24 UTCJun 20, 15:09 UTC1h 45m
2026-06-20 NJU013D - Jun 20, 10:25 UTCJun 20, 12:09 UTC1h 45m
2026-06-19 NJU036Y - Jun 19, 13:39 UTCJun 19, 15:09 UTC1h 30m
2026-06-19 NJU565B - Jun 19, 11:14 UTCJun 19, 12:14 UTC1h 0m
2026-06-19 NJU711M EDI → LTN Jun 19, 07:19 UTCJun 19, 08:20 UTC1h 0m
2026-06-18 NJU833B BRS → EDI Jun 18, 15:20 UTCJun 18, 16:10 UTC50m

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

Mode-S 4082F2 frequently asked

What is Mode-S code 4082F2?
4082F2 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-NJAJ.
Where is Mode-S 4082F2 registered?
Mode-S code 4082F2 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 4082F2 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4082F2, octal 20101362, decimal 4,227,826.
What flights does 4082F2 operate?
Mode-S 4082F2 has broadcast 20 distinct callsigns, including NJU6UA, NJU919R, NJU675M, NJU557C, NJU500A.