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sensors Mode-S transponder

402924

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-BNOP · PIPER PA-28-140/150/160/180

Hex
402924
Octal
20024444
Decimal
4,204,836
Country
GB
Tail
G-BNOP
Type
P28A
Broadcasting now · callsign GBNOP · 800 ft
Flights observed
89
Distinct callsigns
1
Country
GB
Last broadcast
19h ago

Current position

402924 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 402924 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
GBNOP - 89 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 GBNOP - Jul 13, 13:45 UTCJul 13, 14:30 UTC45m
2026-07-13 GBNOP BLK → BLK Jul 13, 11:00 UTCJul 13, 11:55 UTC55m
2026-07-11 GBNOP - Jul 11, 14:50 UTCJul 11, 16:10 UTC1h 20m
2026-07-10 GBNOP - Jul 10, 14:55 UTCJul 10, 15:40 UTC45m
2026-07-10 GBNOP - Jul 10, 11:35 UTCJul 10, 12:30 UTC55m
2026-07-03 GBNOP BLK → BLK Jul 3, 14:20 UTCJul 3, 15:35 UTC1h 15m
2026-07-03 GBNOP BLK → BLK Jul 3, 12:45 UTCJul 3, 13:05 UTC20m
2026-07-03 GBNOP - Jul 3, 10:00 UTCJul 3, 10:55 UTC55m
2026-06-27 GBNOP - Jun 27, 13:20 UTCJun 27, 14:00 UTC40m
2026-06-27 GBNOP - Jun 27, 11:30 UTCJun 27, 12:19 UTC50m
2026-06-26 GBNOP BLK → BLK Jun 26, 13:55 UTCJun 26, 14:29 UTC35m
2026-06-25 GBNOP - Jun 25, 16:35 UTCJun 25, 17:20 UTC45m
2026-06-25 GBNOP - Jun 25, 14:39 UTCJun 25, 15:50 UTC1h 10m
2026-06-24 GBNOP BLK → BLK Jun 24, 17:05 UTCJun 24, 18:44 UTC1h 40m
2026-06-23 GBNOP BLK → BLK Jun 23, 15:15 UTCJun 23, 16:05 UTC50m
2026-06-23 GBNOP - Jun 23, 10:49 UTCJun 23, 12:05 UTC1h 15m
2026-06-21 GBNOP - Jun 21, 15:25 UTCJun 21, 16:25 UTC1h 0m
2026-06-21 GBNOP - Jun 21, 12:35 UTCJun 21, 13:20 UTC45m
2026-06-21 GBNOP BLK → BLK Jun 21, 11:34 UTCJun 21, 12:04 UTC30m
2026-06-21 GBNOP BLK → BLK Jun 21, 10:09 UTCJun 21, 11:00 UTC50m
2026-06-21 GBNOP - Jun 21, 08:35 UTCJun 21, 09:24 UTC50m
2026-06-18 GBNOP BLK → BLK Jun 18, 11:25 UTCJun 18, 12:25 UTC1h 0m
2026-06-15 GBNOP - Jun 15, 17:30 UTCJun 15, 18:20 UTC50m
2026-06-14 GBNOP - Jun 14, 14:20 UTCJun 14, 15:15 UTC55m
2026-06-14 GBNOP BLK → BLK Jun 14, 13:35 UTCJun 14, 13:45 UTC10m
2026-06-12 GBNOP - Jun 12, 16:35 UTCJun 12, 17:35 UTC1h 0m
2026-06-12 GBNOP BLK → BLK Jun 12, 14:45 UTCJun 12, 15:15 UTC30m
2026-06-10 GBNOP BLK → BLK Jun 10, 13:00 UTCJun 10, 13:25 UTC25m
2026-06-09 GBNOP - Jun 9, 13:25 UTCJun 9, 13:50 UTC25m
2026-06-09 GBNOP BLK → WRT Jun 9, 12:50 UTCJun 9, 13:20 UTC30m
2026-06-09 GBNOP BLK → BLK Jun 9, 09:50 UTCJun 9, 10:15 UTC25m
2026-06-09 GBNOP - Jun 9, 08:45 UTCJun 9, 09:10 UTC25m
2026-06-08 GBNOP - Jun 8, 17:05 UTCJun 8, 17:45 UTC40m
2026-06-08 GBNOP - Jun 8, 15:50 UTCJun 8, 16:35 UTC45m
2026-06-08 GBNOP - Jun 8, 08:50 UTCJun 8, 10:40 UTC1h 50m
2026-06-07 GBNOP - Jun 7, 14:20 UTCJun 7, 17:00 UTC2h 40m
2026-06-05 GBNOP - Jun 5, 16:35 UTCJun 5, 17:25 UTC50m
2026-06-05 GBNOP - Jun 5, 15:15 UTCJun 5, 16:00 UTC45m
2026-06-05 GBNOP - Jun 5, 13:15 UTCJun 5, 14:15 UTC1h 0m
2026-05-31 GBNOP - May 31, 10:20 UTCMay 31, 11:25 UTC1h 5m
2026-05-30 GBNOP - May 30, 13:15 UTCMay 30, 14:00 UTC45m
2026-05-30 GBNOP - May 30, 10:35 UTCMay 30, 11:25 UTC50m
2026-05-29 GBNOP BLK → BLK May 29, 14:20 UTCMay 29, 14:50 UTC30m
2026-05-27 GBNOP - May 27, 12:40 UTCMay 27, 13:50 UTC1h 10m
2026-05-27 GBNOP BLK → BLK May 27, 10:15 UTCMay 27, 11:20 UTC1h 5m
2026-05-26 GBNOP BLK → BLK May 26, 09:49 UTCMay 26, 10:44 UTC55m
2026-05-25 GBNOP - May 25, 12:35 UTCMay 25, 12:55 UTC20m
2026-05-25 GBNOP - May 25, 10:25 UTCMay 25, 11:00 UTC35m
2026-05-24 GBNOP - May 24, 15:10 UTCMay 24, 16:55 UTC1h 45m
2026-05-24 GBNOP - May 24, 10:30 UTCMay 24, 11:40 UTC1h 10m

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

Mode-S 402924 frequently asked

What is Mode-S code 402924?
402924 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-BNOP.
Where is Mode-S 402924 registered?
Mode-S code 402924 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 402924 broadcasting right now?
Yes. Mode-S 402924 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 402924, octal 20024444, decimal 4,204,836.
What flights does 402924 operate?
Mode-S 402924 has broadcast 1 distinct callsign, including GBNOP.