sensors Mode-S transponder

4D223A

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-QCG · BOEING 737-800

Hex
4D223A
Octal
23221072
Decimal
5,055,034
Country
MT
Tail
9H-QCG
Type
B738
No current signal · last broadcast 2h ago
Flights observed
313
Distinct callsigns
20
Country
MT
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4D223A.

Country allocation

The ICAO 24-bit address 4D223A falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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
RYR9BY Ryanair 5 2026-05-13
RYR829U Ryanair 5 2026-05-13
RYR523V Ryanair 5 2026-05-13
RYR2198 Ryanair 5 2026-05-13
RYR76PX Ryanair 4 2026-04-18
RYR20SB Ryanair 4 2026-05-10
RYR83SL Ryanair 3 2026-04-22
RYR779 Ryanair 3 2026-05-12
RYR778 Ryanair 3 2026-05-12
RYR70QN Ryanair 3 2026-04-22
RYR52XB Ryanair 3 2026-04-18
RYR39ED Ryanair 3 2026-04-23
RYR9VR Ryanair 2 2026-05-26
RYR9RA Ryanair 2 2026-04-21
RYR9B Ryanair 2 2026-05-11
RYR99ZG Ryanair 2 2026-04-22
RYR97KC Ryanair 2 2026-04-15
RYR90FN Ryanair 2 2026-05-12
RYR89NK Ryanair 2 2026-04-22
RYR8512 Ryanair 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR4RU LGW → SNN May 30, 16:00 UTCMay 30, 17:40 UTC1h 40m
2026-05-30 RYR37GD PMI → NUE May 30, 13:20 UTCMay 30, 15:20 UTC2h 0m
2026-05-30 RYR2JC VLC → PMI May 30, 09:35 UTCMay 30, 10:00 UTC25m
2026-05-30 RYR1MG CFU → BHX May 30, 08:00 UTCMay 30, 08:20 UTC20m
2026-05-30 RYR2889 BCN → PMI May 30, 06:25 UTCMay 30, 06:50 UTC25m
2026-05-30 RYR7MD ALC → MAN May 30, 04:20 UTCMay 30, 04:45 UTC25m
2026-05-29 RYR52FE AGP → PMI May 29, 23:05 UTCMay 30, 00:05 UTC1h 0m
2026-05-29 RYR56FJ PMI → AGP May 29, 21:05 UTCMay 29, 22:10 UTC1h 5m
2026-05-29 RYR54C BCN → PMI May 29, 19:25 UTCMay 29, 19:50 UTC25m
2026-05-29 RYR6DZ VLC → STN May 29, 17:35 UTCMay 29, 18:15 UTC40m
2026-05-29 RYR99PV VCE → EDI May 29, 16:05 UTCMay 29, 16:35 UTC30m
2026-05-29 RYR8AA PMI → LBA May 29, 12:15 UTCMay 29, 14:50 UTC2h 35m
2026-05-29 RYR7W CPH → KUN May 29, 08:50 UTCMay 29, 11:10 UTC2h 20m
2026-05-28 RYR7MD ALC → MAN May 28, 22:45 UTCMay 28, 23:15 UTC30m
2026-05-28 RYR2889 BCN → PMI May 28, 21:00 UTCMay 28, 21:25 UTC25m
2026-05-28 RYR78YQ TNG → BCN May 28, 18:25 UTCMay 28, 19:55 UTC1h 30m
2026-05-28 RYR5WQ STN → EIN May 28, 16:00 UTCMay 28, 17:20 UTC1h 20m
2026-05-28 RYR3147 OUD → BCN May 28, 13:10 UTCMay 28, 14:35 UTC1h 25m
2026-05-28 RYR3146 BCN → OUD May 28, 10:55 UTCMay 28, 12:15 UTC1h 20m
2026-05-28 RYR9MZ EMA → KRK May 28, 07:45 UTCMay 28, 09:30 UTC1h 45m
2026-05-28 RYR83CM BHX → TFS May 28, 05:00 UTCMay 28, 06:45 UTC1h 45m
2026-05-27 RYR66EF KRK → BCN May 27, 20:35 UTCMay 27, 22:55 UTC2h 20m
2026-05-27 RYR8BY DUB → LGW May 27, 17:20 UTCMay 27, 19:35 UTC2h 15m
2026-05-27 RYR99TV IBZ → BCN May 27, 15:10 UTCMay 27, 15:45 UTC35m
2026-05-27 RYR1PK BCN → IBZ May 27, 13:25 UTCMay 27, 14:05 UTC40m
2026-05-27 RYR42TA LPL → BCN May 27, 10:00 UTCMay 27, 12:00 UTC2h 0m
2026-05-27 RYR90RR SVQ → TRN May 27, 07:15 UTCMay 27, 09:10 UTC1h 55m
2026-05-27 RYR1343 PMI → BCN May 27, 05:35 UTCMay 27, 06:04 UTC30m
2026-05-27 RYR4PG ZAZ → STN May 27, 03:59 UTCMay 27, 04:24 UTC25m
2026-05-26 RYR1QN WMI → STN May 26, 19:25 UTCMay 26, 20:29 UTC1h 5m
2026-05-26 RYR10AQ PMO → BGY May 26, 17:09 UTCMay 26, 18:24 UTC1h 15m
2026-05-26 RYR57YY BGY → PMO May 26, 15:09 UTCMay 26, 16:15 UTC1h 5m
2026-05-26 RYR1PT LXS → BGY May 26, 10:14 UTCMay 26, 12:10 UTC1h 55m
2026-05-26 RYR5669 BGY → LXS May 26, 07:15 UTCMay 26, 09:15 UTC2h 0m
2026-05-26 RYR32TE PSR → BGY May 26, 05:30 UTCMay 26, 06:20 UTC50m
2026-05-26 RYR9VR FCO → CTA May 26, 03:55 UTCMay 26, 04:50 UTC55m
2026-05-25 RYR90RC CFU → BGY May 25, 21:35 UTCMay 25, 22:55 UTC1h 20m
2026-05-25 RYR52KD NOC → STN May 25, 19:20 UTCMay 25, 20:50 UTC1h 30m
2026-05-25 RYR57TF MLA → BGY May 25, 16:45 UTCMay 25, 18:20 UTC1h 35m
2026-05-25 RYR477H BGY → MLA May 25, 14:20 UTCMay 25, 15:55 UTC1h 35m
2026-05-25 RYR5YX BVA → SDR May 25, 11:30 UTCMay 25, 12:50 UTC1h 20m
2026-05-25 RYR899T BGY → PMI May 25, 09:10 UTCMay 25, 10:45 UTC1h 35m
2026-05-25 RYR26TC IBZ → BGY May 25, 06:40 UTCMay 25, 08:20 UTC1h 40m
2026-05-25 RYR8334 BGY → IBZ May 25, 04:15 UTCMay 25, 05:45 UTC1h 30m
2026-05-24 RYR32NJ NCL → BGY May 24, 19:40 UTCMay 24, 21:40 UTC2h 0m
2026-05-24 RYR4EB FUE → NCL May 24, 17:00 UTCMay 24, 18:50 UTC1h 50m
2026-05-24 RYR10AQ PMO → BGY May 24, 14:55 UTCMay 24, 16:10 UTC1h 15m
2026-05-24 RYR57YY BGY → PMO May 24, 12:40 UTCMay 24, 13:55 UTC1h 15m
2026-05-24 RYR40NP WMI → BGY May 24, 09:35 UTCMay 24, 11:05 UTC1h 30m
2026-05-24 RYR6YV BGY → WMI May 24, 07:10 UTCMay 24, 08:45 UTC1h 35m

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 9H-QCG page for operator, model, and routing details .

Mode-S 4D223A frequently asked

What is Mode-S code 4D223A?
4D223A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-QCG.
Where is Mode-S 4D223A registered?
Mode-S code 4D223A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D223A 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 4D223A, octal 23221072, decimal 5,055,034.
What flights does 4D223A operate?
Mode-S 4D223A has broadcast 20 distinct callsigns, including RYR9BY, RYR829U, RYR523V, RYR2198, RYR76PX.