sensors Mode-S transponder

4D222A

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D222A
Octal
23221052
Decimal
5,055,018
Country
MT
Tail
9H-QCT
Type
B738
No current signal · last broadcast 1h ago
Flights observed
330
Distinct callsigns
20
Country
MT
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4D222A.

Country allocation

The ICAO 24-bit address 4D222A 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
RYR9SK Ryanair 7 2026-05-30
RYR6095 Ryanair 7 2026-05-30
RYR8WT Ryanair 5 2026-05-14
RYR8AE Ryanair 5 2026-05-30
RYR3NJ Ryanair 5 2026-05-14
RYR8WU Ryanair 4 2026-05-30
RYR877F Ryanair 4 2026-04-22
RYR80FQ Ryanair 4 2026-04-22
RYR619Q Ryanair 4 2026-05-30
RYR525H Ryanair 4 2026-05-27
RYR4NX Ryanair 4 2026-05-29
RYR364N Ryanair 4 2026-05-27
RYR31KK Ryanair 4 2026-04-22
RYR2HW Ryanair 4 2026-04-22
RYR9YD Ryanair 3 2026-05-14
RYR97BT Ryanair 3 2026-04-17
RYR92JA Ryanair 3 2026-04-22
RYR89PT Ryanair 3 2026-04-20
RYR584E Ryanair 3 2026-05-14
RYR44BG Ryanair 3 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR13SG STN → OPO May 30, 18:15 UTCMay 30, 18:30 UTC15m
2026-05-30 RYR8AE WRO → LBA May 30, 15:35 UTCMay 30, 17:10 UTC1h 35m
2026-05-30 RYR619Q BUD → GOT May 30, 11:45 UTCMay 30, 13:35 UTC1h 50m
2026-05-30 RYR8WU BRS → DUB May 30, 09:10 UTCMay 30, 10:50 UTC1h 40m
2026-05-30 RYR6095 GDN → GOT May 30, 07:10 UTCMay 30, 08:00 UTC50m
2026-05-30 RYR9SK STN → SVQ May 30, 05:30 UTCMay 30, 06:05 UTC35m
2026-05-29 RYR8058 BLQ → FUE May 29, 20:15 UTCMay 29, 22:15 UTC2h 0m
2026-05-29 RYR751A - May 29, 16:50 UTCMay 29, 18:40 UTC1h 50m
2026-05-29 RYR6095 GDN → GOT May 29, 15:00 UTCMay 29, 15:55 UTC55m
2026-05-29 RYR9SK STN → SVQ May 29, 13:25 UTCMay 29, 14:15 UTC50m
2026-05-29 RYR4NX MAD → PRG May 29, 11:00 UTCMay 29, 12:25 UTC1h 25m
2026-05-29 RYR8AE WRO → LBA May 29, 08:25 UTCMay 29, 10:00 UTC1h 35m
2026-05-29 RYR834F STN → GOT May 29, 06:10 UTCMay 29, 07:35 UTC1h 25m
2026-05-29 RYR23YL GOT → STN May 29, 03:45 UTCMay 29, 05:15 UTC1h 30m
2026-05-28 RYR4NX MAD → PRG May 28, 19:30 UTCMay 28, 20:55 UTC1h 25m
2026-05-28 RYR8AE WRO → LBA May 28, 16:55 UTCMay 28, 18:20 UTC1h 25m
2026-05-28 RYR9071 GDN → GOT May 28, 14:40 UTCMay 28, 15:40 UTC1h 0m
2026-05-28 RYR7MX ORK → EMA May 28, 13:05 UTCMay 28, 13:55 UTC50m
2026-05-28 RYR866X - May 28, 08:50 UTCMay 28, 12:10 UTC3h 20m
2026-05-28 RYR17UC MAD → CRL May 28, 04:30 UTCMay 28, 07:25 UTC2h 55m
2026-05-27 RYR6095 GDN → GOT May 27, 21:30 UTCMay 27, 22:25 UTC55m
2026-05-27 RYR9SK STN → SVQ May 27, 20:05 UTCMay 27, 20:55 UTC50m
2026-05-27 RYR619Q BUD → GOT May 27, 17:30 UTCMay 27, 19:30 UTC2h 0m
2026-05-27 RYR8WU BRS → DUB May 27, 14:55 UTCMay 27, 16:25 UTC1h 30m
2026-05-27 RYR525H PRG → GOT May 27, 12:25 UTCMay 27, 13:55 UTC1h 30m
2026-05-27 RYR364N GOT → PRG May 27, 10:20 UTCMay 27, 11:30 UTC1h 10m
2026-05-27 RYR5SY CIA → KRK May 27, 07:25 UTCMay 27, 08:55 UTC1h 30m
2026-05-27 RYR6AZ - May 27, 04:55 UTCMay 27, 06:29 UTC1h 35m
2026-05-26 RYR8TE MRS → DUB May 26, 18:10 UTCMay 26, 21:09 UTC3h 0m
2026-05-26 RYR17KC GOT → ALC May 26, 14:05 UTCMay 26, 17:05 UTC3h 0m
2026-05-26 RYR6095 GDN → GOT May 26, 11:30 UTCMay 26, 12:30 UTC1h 0m
2026-05-26 RYR9SK STN → SVQ May 26, 10:05 UTCMay 26, 10:50 UTC45m
2026-05-26 RYR6WT WMI → STN May 26, 07:24 UTCMay 26, 09:19 UTC1h 55m
2026-05-26 RYR8724 GOT → MXP May 26, 04:20 UTCMay 26, 06:20 UTC2h 0m
2026-05-25 RYR88NK MAN → GOT May 25, 17:30 UTCMay 25, 18:55 UTC1h 25m
2026-05-25 RYR3089 GOT → MAN May 25, 14:55 UTCMay 25, 16:30 UTC1h 35m
2026-05-25 RYR30RG BNX → GOT May 25, 11:45 UTCMay 25, 14:00 UTC2h 15m
2026-05-25 RYR55XJ GOT → BNX May 25, 09:05 UTCMay 25, 10:50 UTC1h 45m
2026-05-25 RYR525H PRG → GOT May 25, 06:35 UTCMay 25, 07:55 UTC1h 20m
2026-05-25 RYR364N GOT → PRG May 25, 04:25 UTCMay 25, 05:40 UTC1h 15m
2026-05-24 RYR784M KRK → GOT May 24, 20:40 UTCMay 24, 21:45 UTC1h 5m
2026-05-24 RYR7841 GOT → KRK May 24, 18:20 UTCMay 24, 19:35 UTC1h 15m
2026-05-24 RYR525H PRG → GOT May 24, 15:50 UTCMay 24, 17:10 UTC1h 20m
2026-05-24 RYR364N GOT → PRG May 24, 13:50 UTCMay 24, 14:55 UTC1h 5m
2026-05-24 RYR267E ALC → GOT May 24, 08:10 UTCMay 24, 11:25 UTC3h 15m
2026-05-24 RYR47AP MLA → BVA May 24, 04:00 UTCMay 24, 06:55 UTC2h 55m
2026-05-23 RYR228K EDI → GOT May 23, 18:50 UTCMay 23, 20:05 UTC1h 15m
2026-05-23 RYR16GE GOT → EDI May 23, 16:25 UTCMay 23, 18:00 UTC1h 35m
2026-05-23 RYR619Q BUD → GOT May 23, 11:25 UTCMay 23, 13:10 UTC1h 45m
2026-05-23 RYR8WU BRS → DUB May 23, 08:45 UTCMay 23, 10:30 UTC1h 45m

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

Mode-S 4D222A frequently asked

What is Mode-S code 4D222A?
4D222A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-QCT.
Where is Mode-S 4D222A registered?
Mode-S code 4D222A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D222A broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D222A, octal 23221052, decimal 5,055,018.
What flights does 4D222A operate?
Mode-S 4D222A has broadcast 20 distinct callsigns, including RYR9SK, RYR6095, RYR8WT, RYR8AE, RYR3NJ.