Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

407D0D

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
407D0D
Octal
20076415
Decimal
4,226,317
Country
GB
Tail
G-CMCZ
Type
P28A
No current signal · last broadcast Jul 26, 16:45 UTC
Flights observed
106
Distinct callsigns
2
Country
GB
Last broadcast
Jul 26, 16:45 UTC

Last known position

Most recent position reported by Mode-S 407D0D.

Country allocation

The ICAO 24-bit address 407D0D 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 2 distinct

Callsign Airline Flights Last seen
GCMCZ - 104 2026-07-26
RUK14 - 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GCMCZ BBS → BBS Jul 26, 16:05 UTCJul 26, 16:45 UTC40m
2026-07-26 GCMCZ - Jul 26, 13:10 UTCJul 26, 14:55 UTC1h 45m
2026-07-26 GCMCZ - Jul 26, 12:10 UTCJul 26, 12:30 UTC20m
2026-07-26 GCMCZ - Jul 26, 09:30 UTCJul 26, 09:45 UTC15m
2026-07-25 GCMCZ - Jul 25, 16:55 UTCJul 25, 17:20 UTC25m
2026-07-25 GCMCZ - Jul 25, 12:15 UTCJul 25, 12:50 UTC35m
2026-07-25 GCMCZ - Jul 25, 10:35 UTCJul 25, 11:10 UTC35m
2026-07-25 GCMCZ - Jul 25, 08:45 UTCJul 25, 09:20 UTC35m
2026-07-24 GCMCZ - Jul 24, 13:50 UTCJul 24, 14:50 UTC1h 0m
2026-07-24 GCMCZ - Jul 24, 12:15 UTCJul 24, 13:00 UTC45m
2026-07-24 GCMCZ BBS → NQY Jul 24, 09:00 UTCJul 24, 11:00 UTC2h 0m
2026-07-23 GCMCZ - Jul 23, 11:05 UTCJul 23, 12:05 UTC1h 0m
2026-07-22 GCMCZ - Jul 22, 14:05 UTCJul 22, 15:05 UTC1h 0m
2026-07-18 GCMCZ - Jul 18, 15:55 UTCJul 18, 16:25 UTC30m
2026-07-18 GCMCZ - Jul 18, 14:05 UTCJul 18, 14:35 UTC30m
2026-07-18 GCMCZ - Jul 18, 10:45 UTCJul 18, 13:35 UTC2h 50m
2026-07-17 GCMCZ - Jul 17, 14:30 UTCJul 17, 16:34 UTC2h 5m
2026-07-17 GCMCZ - Jul 17, 11:55 UTCJul 17, 13:00 UTC1h 5m
2026-07-17 GCMCZ - Jul 17, 09:10 UTCJul 17, 10:35 UTC1h 25m
2026-07-15 GCMCZ - Jul 15, 07:55 UTCJul 15, 08:25 UTC30m
2026-07-13 GCMCZ - Jul 13, 13:50 UTCJul 13, 14:25 UTC35m
2026-07-07 GCMCZ - Jul 7, 12:20 UTCJul 7, 12:55 UTC35m
2026-07-07 GCMCZ - Jul 7, 09:30 UTCJul 7, 10:55 UTC1h 25m
2026-07-06 GCMCZ - Jul 6, 13:50 UTCJul 6, 14:35 UTC45m
2026-07-06 GCMCZ - Jul 6, 12:00 UTCJul 6, 12:50 UTC50m
2026-07-06 GCMCZ - Jul 6, 09:25 UTCJul 6, 10:45 UTC1h 20m
2026-07-04 GCMCZ BBS → NWI Jul 4, 14:30 UTCJul 4, 15:55 UTC1h 25m
2026-07-04 GCMCZ QUG → BBS Jul 4, 10:50 UTCJul 4, 12:10 UTC1h 20m
2026-07-04 GCMCZ BBS → QUG Jul 4, 08:55 UTCJul 4, 09:15 UTC20m
2026-07-03 GCMCZ BBS → BBS Jul 3, 14:40 UTCJul 3, 15:55 UTC1h 15m
2026-07-03 GCMCZ - Jul 3, 11:45 UTCJul 3, 12:20 UTC35m
2026-07-03 GCMCZ - Jul 3, 09:20 UTCJul 3, 10:00 UTC40m
2026-07-01 GCMCZ - Jul 1, 17:15 UTCJul 1, 17:45 UTC30m
2026-07-01 GCMCZ - Jul 1, 15:20 UTCJul 1, 16:10 UTC50m
2026-07-01 GCMCZ - Jul 1, 13:45 UTCJul 1, 14:15 UTC30m
2026-07-01 GCMCZ - Jul 1, 11:00 UTCJul 1, 11:40 UTC40m
2026-06-30 GCMCZ BBS → BBS Jun 30, 14:25 UTCJun 30, 16:00 UTC1h 35m
2026-06-30 GCMCZ - Jun 30, 12:30 UTCJun 30, 13:25 UTC55m
2026-06-28 GCMCZ - Jun 28, 11:50 UTCJun 28, 12:44 UTC55m
2026-06-27 GCMCZ - Jun 27, 14:05 UTCJun 27, 14:39 UTC35m
2026-06-27 GCMCZ - Jun 27, 10:14 UTCJun 27, 10:50 UTC35m
2026-06-27 GCMCZ - Jun 27, 08:39 UTCJun 27, 09:24 UTC45m
2026-06-26 GCMCZ - Jun 26, 09:20 UTCJun 26, 09:55 UTC35m
2026-06-26 GCMCZ - Jun 26, 08:05 UTCJun 26, 08:50 UTC45m
2026-06-23 GCMCZ BBS → BBS Jun 23, 09:20 UTCJun 23, 10:35 UTC1h 15m
2026-06-19 GCMCZ BBP → BBS Jun 19, 12:34 UTCJun 19, 13:09 UTC35m
2026-06-19 GCMCZ FAB → BBP Jun 19, 10:14 UTCJun 19, 11:09 UTC55m
2026-06-19 - - Jun 19, 08:04 UTCJun 19, 08:20 UTC15m
2026-06-16 RUK14 - Jun 16, 22:40 UTCJun 16, 22:55 UTC15m
2026-06-16 GCMCZ - Jun 16, 14:45 UTCJun 16, 15:24 UTC40m

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

Mode-S 407D0D frequently asked

What is Mode-S code 407D0D?
407D0D is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-CMCZ.
Where is Mode-S 407D0D registered?
Mode-S code 407D0D 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 407D0D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407D0D, octal 20076415, decimal 4,226,317.
What flights does 407D0D operate?
Mode-S 407D0D has broadcast 2 distinct callsigns, including GCMCZ, RUK14.