Apparatus

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sensors Mode-S transponder

4D228B

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D228B
Octal
23221213
Decimal
5,055,115
Country
MT
Tail
9H-QDK
Type
B738
Broadcasting now · callsign RYR9LZ · 35,975 ft
Flights observed
686
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 22:45 UTC

Current position

4D228B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D228B 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
RYR67HC Ryanair 5 2026-05-09
RYR6405 Ryanair 5 2026-05-09
RYR47QA Ryanair 5 2026-05-10
RYR19UC Ryanair 5 2026-05-10
RYR12KF - 5 2026-04-15
RYR8PB Ryanair 4 2026-05-09
RYR89GT Ryanair 4 2026-05-10
RYR80KA Ryanair 4 2026-05-11
RYR4NU Ryanair 4 2026-05-10
RYR34ZZ - 4 2026-04-15
RYR30AP Ryanair 4 2026-05-10
RYR2XX Ryanair 4 2026-05-10
RYR2MW Ryanair 4 2026-05-10
RYR2HQ Ryanair 4 2026-05-10
RYR14MJ Ryanair 4 2026-05-09
RYR10UK Ryanair 4 2026-05-11
RYR9KB Ryanair 3 2026-05-09
RYR9JP Ryanair 3 2026-06-05
RYR98LK Ryanair 3 2026-05-12
RYR96TN Ryanair 3 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR95LW CGN → MAN Jul 26, 22:05 UTCJul 26, 22:45 UTC40m
2026-07-26 RYR95LW CGN → MAN Jul 26, 21:55 UTCJul 26, 22:00 UTC5m
2026-07-26 RYR906U MAN → CGN Jul 26, 19:40 UTCJul 26, 20:40 UTC1h 0m
2026-07-26 RYR33GT MAN → BUD Jul 26, 18:05 UTCJul 26, 18:35 UTC30m
2026-07-26 RYR12KH AGP → DUB Jul 26, 14:15 UTCJul 26, 17:05 UTC2h 50m
2026-07-26 RYR9357 BOD → AHO Jul 26, 12:25 UTCJul 26, 13:00 UTC35m
2026-07-26 RYR2PQ STN → DUB Jul 26, 08:40 UTCJul 26, 11:05 UTC2h 25m
2026-07-26 RYR3NR EIN → VNO Jul 26, 05:00 UTCJul 26, 07:45 UTC2h 46m
2026-07-25 RYR6991 BGY → RBA Jul 25, 21:20 UTCJul 26, 00:05 UTC2h 45m
2026-07-25 RYR56KP RBA → BGY Jul 25, 17:25 UTCJul 25, 19:50 UTC2h 25m
2026-07-25 RYR2PQ STN → DUB Jul 25, 13:00 UTCJul 25, 15:40 UTC2h 40m
2026-07-25 RYR3NR EIN → VNO Jul 25, 09:25 UTCJul 25, 12:00 UTC2h 35m
2026-07-24 RYR2FV ESU → CRL Jul 24, 20:25 UTCJul 24, 23:25 UTC3h 0m
2026-07-24 RYR9964 RAK → GRO Jul 24, 16:45 UTCJul 24, 19:30 UTC2h 45m
2026-07-24 RYR6GT - Jul 24, 13:40 UTCJul 24, 15:35 UTC1h 55m
2026-07-24 RYR87XX FKB → PMI Jul 24, 10:45 UTCJul 24, 12:35 UTC1h 50m
2026-07-23 RYR6612 MAD → RBA Jul 23, 22:30 UTCJul 23, 23:45 UTC1h 15m
2026-07-23 RYR6613 RBA → MAD Jul 23, 19:50 UTCJul 23, 21:00 UTC1h 10m
2026-07-23 RYR9959 GNB → MAN Jul 23, 17:35 UTCJul 23, 18:50 UTC1h 15m
2026-07-23 RYR996B RBA → OPO Jul 23, 15:20 UTCJul 23, 16:35 UTC1h 15m
2026-07-23 RYR16CM NRN → RBA Jul 23, 09:30 UTCJul 23, 12:20 UTC2h 50m
2026-07-23 RYR90HK - Jul 23, 05:50 UTCJul 23, 08:40 UTC2h 50m
2026-07-22 RYR6276 - Jul 22, 20:45 UTCJul 22, 23:35 UTC2h 50m
2026-07-22 RYR6277 - Jul 22, 17:00 UTCJul 22, 19:50 UTC2h 50m
2026-07-22 RYR2PQ - Jul 22, 13:20 UTCJul 22, 16:05 UTC2h 45m
2026-07-22 RYR3NR EIN → VNO Jul 22, 10:20 UTCJul 22, 12:20 UTC2h 0m
2026-07-21 RYR4957 VLC → RBA Jul 21, 23:15 UTCJul 22, 00:30 UTC1h 15m
2026-07-21 RYR1FF - Jul 21, 20:05 UTCJul 21, 21:45 UTC1h 40m
2026-07-21 RYR71LM - Jul 21, 17:30 UTCJul 21, 19:05 UTC1h 35m
2026-07-21 RYR2HD TRN → VLC Jul 21, 14:55 UTCJul 21, 16:35 UTC1h 40m
2026-07-21 RYR14RG - Jul 21, 12:35 UTCJul 21, 14:10 UTC1h 35m
2026-07-21 RYR1699 IBZ → VLC Jul 21, 10:50 UTCJul 21, 11:25 UTC35m
2026-07-21 RYR418Z VLC → IBZ Jul 21, 09:30 UTCJul 21, 09:50 UTC20m
2026-07-21 RYR7549 BCN → MAN Jul 21, 06:35 UTCJul 21, 08:20 UTC1h 45m
2026-07-21 RYR7548 VLC → PMO Jul 21, 04:00 UTCJul 21, 05:35 UTC1h 35m
2026-07-20 RYR31UF - Jul 20, 18:30 UTCJul 20, 20:35 UTC2h 5m
2026-07-20 RYR49YQ - Jul 20, 15:50 UTCJul 20, 17:25 UTC1h 35m
2026-07-20 RYR52SU - Jul 20, 12:55 UTCJul 20, 15:00 UTC2h 5m
2026-07-20 RYR65FR - Jul 20, 10:10 UTCJul 20, 11:50 UTC1h 40m
2026-07-20 RYR32RM - Jul 20, 07:10 UTCJul 20, 09:00 UTC1h 50m
2026-07-20 RYR76QZ - Jul 20, 03:50 UTCJul 20, 05:45 UTC1h 55m
2026-07-19 RYR400C MAH → VLC Jul 19, 21:35 UTCJul 19, 22:15 UTC40m
2026-07-19 RYR7499 - Jul 19, 19:40 UTCJul 19, 20:25 UTC45m
2026-07-19 RYR18TH MLA → VLC Jul 19, 16:50 UTCJul 19, 18:45 UTC1h 55m
2026-07-19 RYR7XB VLC → MLA Jul 19, 14:00 UTCJul 19, 15:45 UTC1h 45m
2026-07-19 RYR184Q - Jul 19, 11:00 UTCJul 19, 13:00 UTC2h 0m
2026-07-19 RYR66BN - Jul 19, 07:35 UTCJul 19, 09:35 UTC2h 0m
2026-07-19 RYR3VU SVQ → VLC Jul 19, 05:50 UTCJul 19, 06:40 UTC50m
2026-07-19 RYR7WV - Jul 19, 03:55 UTCJul 19, 04:45 UTC50m
2026-07-18 RYR1699 IBZ → VLC Jul 18, 22:20 UTCJul 18, 22:45 UTC25m

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

Mode-S 4D228B frequently asked

What is Mode-S code 4D228B?
4D228B is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-QDK.
Where is Mode-S 4D228B registered?
Mode-S code 4D228B is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D228B broadcasting right now?
Yes. Mode-S 4D228B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D228B, octal 23221213, decimal 5,055,115.
What flights does 4D228B operate?
Mode-S 4D228B has broadcast 20 distinct callsigns, including RYR67HC, RYR6405, RYR47QA, RYR19UC, RYR12KF.