Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
No current signal · last broadcast 4h ago
Flights observed
633
Distinct callsigns
20
Country
MT
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4D225D.

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
RYR7AL Ryanair 5 2026-06-18
RYR53YT - 5 2026-06-18
RYR9626 Ryanair 4 2026-05-02
RYR84TT Ryanair 4 2026-04-20
RYR84AV Ryanair 4 2026-04-17
RYR6NE Ryanair 4 2026-04-29
RYR2KK - 4 2026-07-14
RYR20UU - 4 2026-07-14
RYR17KF Ryanair 4 2026-04-20
RYR981G - 3 2026-07-01
RYR93LD - 3 2026-07-02
RYR83RW Ryanair 3 2026-06-25
RYR764G - 3 2026-07-02
RYR65JP Ryanair 3 2026-05-26
RYR65DV - 3 2026-06-29
RYR65CV - 3 2026-04-13
RYR62CY Ryanair 3 2026-05-26
RYR5GF Ryanair 3 2026-05-27
RYR539L Ryanair 3 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RYR66DP - Jul 14, 20:30 UTCJul 14, 22:10 UTC1h 40m
2026-07-14 RYR83TK - Jul 14, 17:30 UTCJul 14, 19:25 UTC1h 55m
2026-07-14 RYR20UU - Jul 14, 14:40 UTCJul 14, 16:00 UTC1h 20m
2026-07-14 RYR2KK - Jul 14, 12:15 UTCJul 14, 13:40 UTC1h 25m
2026-07-14 RYR11TX KUN → PSA Jul 14, 09:05 UTCJul 14, 11:15 UTC2h 10m
2026-07-14 RYR1809 - Jul 14, 06:10 UTCJul 14, 08:20 UTC2h 10m
2026-07-13 RYR5EA - Jul 13, 20:55 UTCJul 13, 21:55 UTC1h 0m
2026-07-13 RYR98KN - Jul 13, 19:05 UTCJul 13, 19:55 UTC50m
2026-07-13 RYR82UJ - Jul 13, 16:35 UTCJul 13, 18:15 UTC1h 40m
2026-07-13 RYR4MT - Jul 13, 14:15 UTCJul 13, 15:35 UTC1h 20m
2026-07-13 RYR4KG - Jul 13, 11:05 UTCJul 13, 13:00 UTC1h 55m
2026-07-13 RYR88VF - Jul 13, 08:30 UTCJul 13, 10:10 UTC1h 40m
2026-07-13 RYR98 BTS → PSA Jul 13, 06:05 UTCJul 13, 07:25 UTC1h 20m
2026-07-13 RYR37UN - Jul 13, 04:05 UTCJul 13, 05:15 UTC1h 10m
2026-07-12 RYR4YW - Jul 12, 23:30 UTCJul 12, 23:40 UTC10m
2026-07-12 RYR54BY - Jul 12, 21:00 UTCJul 12, 22:25 UTC1h 25m
2026-07-12 RYR9RN - Jul 12, 18:50 UTCJul 12, 20:01 UTC1h 10m
2026-07-12 RYR1FM - Jul 12, 15:40 UTCJul 12, 17:45 UTC2h 5m
2026-07-12 RYR164G - Jul 12, 12:50 UTCJul 12, 14:50 UTC2h 0m
2026-07-12 RYR5NB - Jul 12, 09:40 UTCJul 12, 10:35 UTC55m
2026-07-12 RYR761H - Jul 12, 08:01 UTCJul 12, 08:50 UTC50m
2026-07-12 RYR33VP - Jul 12, 06:01 UTCJul 12, 07:10 UTC1h 10m
2026-07-12 RYR1Y - Jul 12, 04:05 UTCJul 12, 05:05 UTC1h 0m
2026-07-11 RYR5RZ MAD → PSA Jul 11, 20:55 UTCJul 11, 22:30 UTC1h 35m
2026-07-11 RYR7276 - Jul 11, 17:25 UTCJul 11, 19:20 UTC1h 55m
2026-07-11 RYR7LG - Jul 11, 15:00 UTCJul 11, 16:10 UTC1h 10m
2026-07-11 RYR30KW - Jul 11, 13:10 UTCJul 11, 14:15 UTC1h 5m
2026-07-11 RYR159L MLA → PSA Jul 11, 10:35 UTCJul 11, 11:55 UTC1h 20m
2026-07-11 RYR4CJ - Jul 11, 07:50 UTCJul 11, 09:10 UTC1h 20m
2026-07-11 RYR2WF - Jul 11, 06:05 UTCJul 11, 06:55 UTC50m
2026-07-11 RYR32RL - Jul 11, 04:25 UTCJul 11, 05:20 UTC55m
2026-07-10 RYR135Z - Jul 10, 20:40 UTCJul 10, 22:20 UTC1h 40m
2026-07-10 RYR9VT PSA → STN Jul 10, 17:35 UTCJul 10, 19:25 UTC1h 50m
2026-07-10 RYR6BT - Jul 10, 15:05 UTCJul 10, 16:40 UTC1h 35m
2026-07-10 RYR37BC - Jul 10, 12:35 UTCJul 10, 14:05 UTC1h 30m
2026-07-10 RYR20UU - Jul 10, 10:10 UTCJul 10, 11:30 UTC1h 20m
2026-07-10 RYR2KK - Jul 10, 07:45 UTCJul 10, 09:05 UTC1h 20m
2026-07-10 RYR2WF - Jul 10, 06:00 UTCJul 10, 06:50 UTC50m
2026-07-10 RYR32RL - Jul 10, 04:05 UTCJul 10, 05:00 UTC55m
2026-07-09 RYR8RB - Jul 9, 21:45 UTCJul 9, 22:30 UTC45m
2026-07-09 RYR292Q PSA → CAG Jul 9, 20:10 UTCJul 9, 21:00 UTC50m
2026-07-09 RYR19UY - Jul 9, 16:40 UTCJul 9, 18:20 UTC1h 40m
2026-07-09 RYR74CA - Jul 9, 13:55 UTCJul 9, 15:55 UTC2h 0m
2026-07-09 RYR64XG KGS → PSA Jul 9, 09:50 UTCJul 9, 12:10 UTC2h 20m
2026-07-09 RYR80KK PSA → KGS Jul 9, 06:20 UTCJul 9, 08:30 UTC2h 10m
2026-07-08 RYR58HM - Jul 8, 20:35 UTCJul 8, 21:45 UTC1h 10m
2026-07-08 RYR49EJ - Jul 8, 18:25 UTCJul 8, 19:20 UTC55m
2026-07-08 RYR6BT - Jul 8, 16:05 UTCJul 8, 17:25 UTC1h 20m
2026-07-08 RYR37BC - Jul 8, 14:00 UTCJul 8, 15:25 UTC1h 25m
2026-07-08 RYR20UU - Jul 8, 11:40 UTCJul 8, 12:55 UTC1h 15m

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?
No active broadcast right now. Last signal was 4h ago.
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, RYR7AL, RYR53YT, RYR9626, RYR84TT.