Apparatus

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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
Broadcasting now · callsign RYR54CX · 37,000 ft
Flights observed
680
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 20:05 UTC

Current position

4D223A is currently broadcasting. Map zoomed to live position.

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
RYR6QU - 5 2026-07-19
RYR523V Ryanair 5 2026-05-13
RYR2198 Ryanair 5 2026-05-13
RYR76PX Ryanair 4 2026-04-18
RYR71LM - 4 2026-07-01
RYR61ED - 4 2026-07-19
RYR5LF Ryanair 4 2026-06-12
RYR43NU Ryanair 4 2026-06-12
RYR20SB Ryanair 4 2026-05-10
RYR1FF - 4 2026-07-01
RYR9VR - 3 2026-07-15
RYR97BL - 3 2026-06-29
RYR8989 - 3 2026-07-02
RYR889A - 3 2026-07-02
RYR85WH - 3 2026-07-12
RYR83SL Ryanair 3 2026-04-22
RYR779 Ryanair 3 2026-05-12
RYR778 Ryanair 3 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR8AH MXP → CFU Jul 26, 19:30 UTCJul 26, 20:05 UTC35m
2026-07-26 RYR5LR CRL → BLQ Jul 26, 17:00 UTCJul 26, 18:10 UTC1h 10m
2026-07-26 RYR56PQ BLQ → CRL Jul 26, 14:20 UTCJul 26, 15:45 UTC1h 25m
2026-07-26 RYR88NB MAD → BLQ Jul 26, 11:05 UTCJul 26, 12:50 UTC1h 45m
2026-07-26 RYR908N BLQ → MAD Jul 26, 07:40 UTCJul 26, 09:35 UTC1h 55m
2026-07-26 RYR2Z RAK → BGY Jul 26, 05:55 UTCJul 26, 07:00 UTC1h 6m
2026-07-26 RYR5RC ZAG → NAP Jul 26, 03:55 UTCJul 26, 05:00 UTC1h 5m
2026-07-25 RYR8QZ STN → DUB Jul 25, 23:15 UTCJul 26, 00:30 UTC1h 15m
2026-07-25 RYR520K ZAG → CRL Jul 25, 19:45 UTCJul 25, 21:30 UTC1h 45m
2026-07-25 RYR46DW - Jul 25, 16:45 UTCJul 25, 17:55 UTC1h 10m
2026-07-25 RYR204M - Jul 25, 13:10 UTCJul 25, 14:35 UTC1h 25m
2026-07-25 RYR5MH BRI → BLQ Jul 25, 11:15 UTCJul 25, 12:10 UTC55m
2026-07-25 RYR28SK BLQ → BRI Jul 25, 09:20 UTCJul 25, 10:10 UTC50m
2026-07-25 RYR2Z RAK → BGY Jul 25, 07:25 UTCJul 25, 08:25 UTC1h 0m
2026-07-25 RYR5RC ZAG → NAP Jul 25, 05:20 UTCJul 25, 06:20 UTC1h 0m
2026-07-23 RYR3HB CAG → FKB Jul 23, 21:45 UTCJul 23, 23:10 UTC1h 25m
2026-07-23 RYR3RU CRL → OPO Jul 23, 19:00 UTCJul 23, 20:20 UTC1h 20m
2026-07-23 RYR7HA - Jul 23, 15:45 UTCJul 23, 17:55 UTC2h 10m
2026-07-23 RYR2XC BLQ → CHQ Jul 23, 12:45 UTCJul 23, 14:45 UTC2h 0m
2026-07-23 RYR8TU - Jul 23, 08:50 UTCJul 23, 10:10 UTC1h 20m
2026-07-23 RYR6NZ - Jul 23, 06:55 UTCJul 23, 07:55 UTC1h 0m
2026-07-22 RYR17UZ FCO → DUB Jul 22, 20:30 UTCJul 22, 21:50 UTC1h 20m
2026-07-22 RYR36HD BLQ → BCN Jul 22, 17:45 UTCJul 22, 19:05 UTC1h 20m
2026-07-22 RYR8TU - Jul 22, 15:45 UTCJul 22, 16:55 UTC1h 10m
2026-07-22 RYR6NZ - Jul 22, 13:30 UTCJul 22, 14:35 UTC1h 5m
2026-07-21 RYR9YL - Jul 21, 22:05 UTCJul 21, 23:35 UTC1h 30m
2026-07-21 RYR5154 - Jul 21, 19:30 UTCJul 21, 20:35 UTC1h 5m
2026-07-21 RYR8QZ STN → DUB Jul 21, 17:00 UTCJul 21, 18:40 UTC1h 40m
2026-07-21 RYR520K ZAG → CRL Jul 21, 14:20 UTCJul 21, 16:00 UTC1h 40m
2026-07-21 RYR9JP - Jul 21, 11:55 UTCJul 21, 13:10 UTC1h 15m
2026-07-21 RYR11HV - Jul 21, 10:00 UTCJul 21, 10:55 UTC55m
2026-07-21 RYR31QC MLA → BLQ Jul 21, 07:35 UTCJul 21, 09:05 UTC1h 30m
2026-07-21 RYR6JX - Jul 21, 05:15 UTCJul 21, 06:40 UTC1h 25m
2026-07-20 RYR20XE CTA → BLQ Jul 20, 22:05 UTCJul 20, 23:25 UTC1h 20m
2026-07-20 RYR4891 FCO → CTA Jul 20, 18:50 UTCJul 20, 19:35 UTC45m
2026-07-20 RYR80HG CTA → FCO Jul 20, 16:40 UTCJul 20, 17:40 UTC1h 0m
2026-07-20 RYR8436 TIA → CTA Jul 20, 14:45 UTCJul 20, 15:35 UTC50m
2026-07-20 RYR6NN MRS → CRL Jul 20, 12:25 UTCJul 20, 13:00 UTC35m
2026-07-20 RYR12LP - Jul 20, 09:25 UTCJul 20, 11:15 UTC1h 50m
2026-07-20 RYR5VU - Jul 20, 06:50 UTCJul 20, 08:30 UTC1h 40m
2026-07-20 RYR2931 - Jul 20, 05:15 UTCJul 20, 05:40 UTC25m
2026-07-20 RYR7HM BOJ → VIE Jul 20, 03:55 UTCJul 20, 04:20 UTC25m
2026-07-19 RYR6651 - Jul 19, 19:35 UTCJul 19, 20:50 UTC1h 15m
2026-07-19 RYR44CH - Jul 19, 17:00 UTCJul 19, 18:30 UTC1h 30m
2026-07-19 RYR8WW - Jul 19, 14:20 UTCJul 19, 15:40 UTC1h 20m
2026-07-19 RYR3YU - Jul 19, 11:20 UTCJul 19, 13:15 UTC1h 55m
2026-07-19 RYR2WZ WMI → LIS Jul 19, 08:40 UTCJul 19, 10:20 UTC1h 40m
2026-07-19 RYR61ED - Jul 19, 06:05 UTCJul 19, 06:55 UTC50m
2026-07-19 RYR6QU - Jul 19, 04:10 UTCJul 19, 05:05 UTC55m
2026-07-18 RYR1JK ARN → BGY Jul 18, 20:10 UTCJul 18, 22:40 UTC2h 30m

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?
Yes. Mode-S 4D223A is currently airborne.
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, RYR6QU, RYR523V, RYR2198.