Apparatus

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sensors Mode-S transponder

4D225D

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D225D
Octal
23221135
Decimal
5,055,069
Country
MT
Tail
9H-QDN
Type
B738
Broadcasting now · callsign RYR92SE · 36,500 ft
Flights observed
714
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 20:15 UTC

Current position

4D225D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D225D 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
RYR5UM Ryanair 7 2026-04-17
RYR2KK - 7 2026-07-21
RYR20UU - 7 2026-07-21
RYR7AL Ryanair 5 2026-06-18
RYR53YT - 5 2026-06-18
RYR9626 Ryanair 4 2026-05-02
RYR88VF - 4 2026-07-22
RYR84TT Ryanair 4 2026-04-20
RYR84AV Ryanair 4 2026-04-17
RYR6NE Ryanair 4 2026-04-29
RYR6BT - 4 2026-07-17
RYR4KG - 4 2026-07-22
RYR37BC - 4 2026-07-17
RYR33VP Ryanair 4 2026-07-22
RYR1Y Ryanair 4 2026-07-22
RYR17KF Ryanair 4 2026-04-20
RYR9VT Ryanair 3 2026-07-20
RYR98KN Ryanair 3 2026-07-18
RYR981G - 3 2026-07-01
RYR93LD - 3 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR2998 ZTH → NAP Jul 26, 19:00 UTCJul 26, 20:15 UTC1h 15m
2026-07-26 RYR5UA SNN → MLA Jul 26, 17:05 UTCJul 26, 18:05 UTC1h 0m
2026-07-26 RYR21XE VLC → NAP Jul 26, 13:30 UTCJul 26, 14:55 UTC1h 25m
2026-07-26 RYR3YE BRI → VLC Jul 26, 10:10 UTCJul 26, 12:25 UTC2h 15m
2026-07-26 RYR749U VLC → BRI Jul 26, 07:00 UTCJul 26, 08:50 UTC1h 50m
2026-07-26 RYR24ST PMI → VLC Jul 26, 05:35 UTCJul 26, 06:15 UTC40m
2026-07-26 RYR7372 VLC → PMI Jul 26, 04:00 UTCJul 26, 04:30 UTC30m
2026-07-25 RYR91KF BLQ → VLC Jul 25, 20:25 UTCJul 25, 22:15 UTC1h 50m
2026-07-25 RYR78LL VLC → BLQ Jul 25, 16:50 UTCJul 25, 18:15 UTC1h 25m
2026-07-25 RYR18TH MLA → VLC Jul 25, 13:50 UTCJul 25, 15:55 UTC2h 5m
2026-07-25 RYR7XB BRS → VCE Jul 25, 11:00 UTCJul 25, 12:50 UTC1h 50m
2026-07-25 RYR93KF BER → VLC Jul 25, 07:10 UTCJul 25, 09:55 UTC2h 45m
2026-07-25 RYR63WX VLC → BER Jul 25, 03:55 UTCJul 25, 06:20 UTC2h 25m
2026-07-24 RYR52RY - Jul 24, 17:35 UTCJul 24, 19:45 UTC2h 10m
2026-07-24 RYR225Q EIN → STN Jul 24, 15:50 UTCJul 24, 16:35 UTC45m
2026-07-24 RYR63JG STN → EIN Jul 24, 14:25 UTCJul 24, 15:05 UTC40m
2026-07-24 RYR7LU - Jul 24, 10:45 UTCJul 24, 13:00 UTC2h 15m
2026-07-24 RYR27LQ STN → RMU Jul 24, 07:35 UTCJul 24, 10:00 UTC2h 25m
2026-07-23 RYR35SH - Jul 23, 19:45 UTCJul 23, 21:55 UTC2h 10m
2026-07-23 RYR49WG CRL → LPA Jul 23, 19:25 UTCJul 23, 19:40 UTC15m
2026-07-23 RYR9PJ FAO → BGY Jul 23, 16:25 UTCJul 23, 18:50 UTC2h 25m
2026-07-23 RYR59JH FAO → STN Jul 23, 12:40 UTCJul 23, 15:10 UTC2h 30m
2026-07-23 RYR4W - Jul 23, 09:25 UTCJul 23, 11:55 UTC2h 30m
2026-07-23 RYR4GC FUE → NRN Jul 23, 07:40 UTCJul 23, 08:30 UTC50m
2026-07-23 RYR82VQ PSA → DUB Jul 23, 04:00 UTCJul 23, 06:25 UTC2h 25m
2026-07-22 RYR4KG - Jul 22, 20:00 UTCJul 22, 21:50 UTC1h 50m
2026-07-22 RYR88VF - Jul 22, 17:35 UTCJul 22, 19:10 UTC1h 35m
2026-07-22 RYR33VP SUF → PSA Jul 22, 15:30 UTCJul 22, 16:40 UTC1h 10m
2026-07-22 RYR1Y HHN → ZAD Jul 22, 13:45 UTCJul 22, 14:45 UTC1h 0m
2026-07-22 RYR6XK - Jul 22, 11:10 UTCJul 22, 12:35 UTC1h 25m
2026-07-22 RYR292Q PSA → CAG Jul 22, 04:00 UTCJul 22, 04:40 UTC40m
2026-07-21 RYR66DP STN → PSA Jul 21, 20:45 UTCJul 21, 22:25 UTC1h 40m
2026-07-21 RYR83TK PSA → STN Jul 21, 17:35 UTCJul 21, 19:40 UTC2h 5m
2026-07-21 RYR20UU - Jul 21, 15:05 UTCJul 21, 16:25 UTC1h 20m
2026-07-21 RYR2KK - Jul 21, 12:35 UTCJul 21, 14:05 UTC1h 30m
2026-07-21 RYR11TX KUN → PSA Jul 21, 09:20 UTCJul 21, 11:40 UTC2h 20m
2026-07-21 RYR1809 - Jul 21, 06:15 UTCJul 21, 08:30 UTC2h 15m
2026-07-20 RYR5TL VLC → PSA Jul 20, 21:50 UTCJul 20, 23:10 UTC1h 20m
2026-07-20 RYR46CU PSA → VLC Jul 20, 19:00 UTCJul 20, 20:40 UTC1h 40m
2026-07-20 RYR135Z - Jul 20, 15:40 UTCJul 20, 17:20 UTC1h 40m
2026-07-20 RYR9VT PSA → STN Jul 20, 12:05 UTCJul 20, 14:10 UTC2h 5m
2026-07-20 RYR30WP - Jul 20, 08:30 UTCJul 20, 10:40 UTC2h 10m
2026-07-20 RYR82VQ - Jul 20, 05:00 UTCJul 20, 07:20 UTC2h 20m
2026-07-19 RYR1LB - Jul 19, 20:35 UTCJul 19, 21:55 UTC1h 20m
2026-07-19 RYR66WT - Jul 19, 18:30 UTCJul 19, 19:55 UTC1h 25m
2026-07-19 RYR1FM - Jul 19, 15:15 UTCJul 19, 17:25 UTC2h 10m
2026-07-19 RYR164G - Jul 19, 12:30 UTCJul 19, 14:20 UTC1h 50m
2026-07-19 RYR5NB - Jul 19, 09:45 UTCJul 19, 10:45 UTC1h 0m
2026-07-19 RYR761H - Jul 19, 08:05 UTCJul 19, 09:00 UTC55m
2026-07-19 RYR33VP SUF → PSA Jul 19, 06:00 UTCJul 19, 07:10 UTC1h 10m

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

Mode-S 4D225D frequently asked

What is Mode-S code 4D225D?
4D225D is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-QDN.
Where is Mode-S 4D225D registered?
Mode-S code 4D225D is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D225D broadcasting right now?
Yes. Mode-S 4D225D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D225D, octal 23221135, decimal 5,055,069.
What flights does 4D225D operate?
Mode-S 4D225D has broadcast 20 distinct callsigns, including RYR5UM, RYR2KK, RYR20UU, RYR7AL, RYR53YT.