sensors Mode-S transponder

4083A2

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-LUMI · CIRRUS SR-22

Hex
4083A2
Octal
20101642
Decimal
4,228,002
Country
GB
Tail
G-LUMI
Type
SR22
No current signal · last broadcast 9h ago
Flights observed
49
Distinct callsigns
1
Country
GB
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 4083A2.

Country allocation

The ICAO 24-bit address 4083A2 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
GLUMI - 49 2026-06-02

Recent flights last 49

DateFlightRouteTakeoffLandingDuration
2026-06-02 GLUMI - Jun 2, 17:00 UTCJun 2, 18:00 UTC1h 0m
2026-06-02 GLUMI - Jun 2, 11:05 UTCJun 2, 11:15 UTC10m
2026-05-31 GLUMI - May 31, 11:50 UTCMay 31, 13:45 UTC1h 55m
2026-05-28 GLUMI BQH → LUX May 28, 06:35 UTCMay 28, 08:15 UTC1h 40m
2026-05-26 GLUMI - May 26, 16:20 UTCMay 26, 17:39 UTC1h 20m
2026-05-26 GLUMI - May 26, 08:54 UTCMay 26, 11:44 UTC2h 50m
2026-05-23 GLUMI - May 23, 10:10 UTCMay 23, 12:50 UTC2h 40m
2026-05-20 GLUMI - May 20, 15:45 UTCMay 20, 17:00 UTC1h 15m
2026-05-15 GLUMI LYX → BQH May 15, 11:55 UTCMay 15, 12:25 UTC30m
2026-05-15 GLUMI - May 15, 09:40 UTCMay 15, 09:55 UTC15m
2026-05-12 GLUMI - May 12, 14:05 UTCMay 12, 14:40 UTC35m
2026-05-12 GLUMI - May 12, 10:10 UTCMay 12, 11:45 UTC1h 35m
2026-05-10 GLUMI - May 10, 10:45 UTCMay 10, 12:25 UTC1h 40m
2026-05-09 GLUMI - May 9, 15:00 UTCMay 9, 16:40 UTC1h 40m
2026-05-09 GLUMI - May 9, 10:10 UTCMay 9, 12:00 UTC1h 50m
2026-05-07 GLUMI - May 7, 13:50 UTCMay 7, 16:20 UTC2h 30m
2026-05-07 GLUMI - May 7, 10:35 UTCMay 7, 11:05 UTC30m
2026-05-06 GLUMI LYX → BQH May 6, 13:40 UTCMay 6, 14:15 UTC35m
2026-05-06 GLUMI - May 6, 10:50 UTCMay 6, 12:01 UTC1h 10m
2026-05-04 GLUMI - May 4, 15:55 UTCMay 4, 16:50 UTC55m
2026-05-04 GLUMI - May 4, 09:30 UTCMay 4, 11:20 UTC1h 50m
2026-05-02 GLUMI - May 2, 17:10 UTCMay 2, 18:15 UTC1h 5m
2026-05-02 GLUMI - May 2, 12:15 UTCMay 2, 13:00 UTC45m
2026-05-02 GLUMI - May 2, 09:25 UTCMay 2, 11:25 UTC2h 0m
2026-05-02 GLUMI BQH → KJK May 2, 07:25 UTCMay 2, 08:20 UTC55m
2026-05-01 GLUMI - May 1, 13:35 UTCMay 1, 16:00 UTC2h 25m
2026-05-01 GLUMI - May 1, 10:45 UTCMay 1, 11:55 UTC1h 10m
2026-04-30 GLUMI - Apr 30, 19:30 UTCApr 30, 20:45 UTC1h 15m
2026-04-30 GLUMI GCI → BQH Apr 30, 13:05 UTCApr 30, 14:10 UTC1h 5m
2026-04-27 GLUMI SEN → GCI Apr 27, 07:15 UTCApr 27, 08:30 UTC1h 15m
2026-04-26 GLUMI - Apr 26, 20:05 UTCApr 26, 21:05 UTC1h 0m
2026-04-26 GLUMI - Apr 26, 19:15 UTCApr 26, 19:35 UTC20m
2026-04-26 GLUMI - Apr 26, 17:20 UTCApr 26, 18:30 UTC1h 10m
2026-04-26 GLUMI - Apr 26, 13:05 UTCApr 26, 16:00 UTC2h 55m
2026-04-24 GLUMI FDH → RKE Apr 24, 06:10 UTCApr 24, 09:30 UTC3h 20m
2026-04-22 GLUMI - Apr 22, 15:25 UTCApr 22, 18:35 UTC3h 10m
2026-04-22 GLUMI - Apr 22, 06:30 UTCApr 22, 10:20 UTC3h 50m
2026-04-21 GLUMI - Apr 21, 20:45 UTCApr 21, 21:35 UTC50m
2026-04-21 GLUMI - Apr 21, 19:10 UTCApr 21, 20:10 UTC1h 0m
2026-04-21 GLUMI - Apr 21, 15:40 UTCApr 21, 16:25 UTC45m
2026-04-21 GLUMI - Apr 21, 14:25 UTCApr 21, 15:05 UTC40m
2026-04-20 GLUMI BQH → BQH Apr 20, 16:35 UTCApr 20, 16:45 UTC10m
2026-04-17 GLUMI - Apr 17, 13:25 UTCApr 17, 13:50 UTC25m
2026-04-17 GLUMI - Apr 17, 11:20 UTCApr 17, 12:25 UTC1h 5m
2026-04-17 GLUMI - Apr 17, 09:55 UTCApr 17, 11:00 UTC1h 5m
2026-04-16 GLUMI - Apr 16, 17:15 UTCApr 16, 17:25 UTC10m
2026-04-16 GLUMI - Apr 16, 15:15 UTCApr 16, 17:10 UTC1h 55m
2026-04-16 GLUMI - Apr 16, 14:40 UTCApr 16, 15:10 UTC30m
2026-04-16 GLUMI - Apr 16, 13:15 UTCApr 16, 13:50 UTC35m

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

Mode-S 4083A2 frequently asked

What is Mode-S code 4083A2?
4083A2 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LUMI.
Where is Mode-S 4083A2 registered?
Mode-S code 4083A2 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 4083A2 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4083A2, octal 20101642, decimal 4,228,002.
What flights does 4083A2 operate?
Mode-S 4083A2 has broadcast 1 distinct callsign, including GLUMI.