Apparatus

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sensors Mode-S transponder

4D220A

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D220A
Octal
23221012
Decimal
5,054,986
Country
MT
Tail
9H-QDG
Type
B738
No current signal · last broadcast Jul 26, 21:20 UTC
Flights observed
711
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 21:20 UTC

Last known position

Most recent position reported by Mode-S 4D220A.

Country allocation

The ICAO 24-bit address 4D220A 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
RYR9GB - 4 2026-07-20
RYR966P Ryanair 4 2026-04-18
RYR4WG Ryanair 4 2026-07-21
RYR95ZC - 3 2026-07-09
RYR8TP - 3 2026-07-23
RYR8SK Ryanair 3 2026-07-20
RYR8DY Ryanair 3 2026-04-13
RYR78UE Ryanair 3 2026-04-15
RYR7826 Ryanair 3 2026-05-30
RYR6LY - 3 2026-04-15
RYR65VZ Ryanair 3 2026-07-09
RYR65FR Ryanair 3 2026-06-11
RYR5WG - 3 2026-04-14
RYR5DP Ryanair 3 2026-05-30
RYR35PE Ryanair 3 2026-07-23
RYR304P - 3 2026-06-27
RYR2VB - 3 2026-04-13
RYR2ST Ryanair 3 2026-05-08
RYR97YQ - 2 2026-07-14
RYR96ZJ - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR669 BHX → DUB Jul 26, 20:40 UTCJul 26, 21:20 UTC40m
2026-07-26 RYR68BJ DUB → BHX Jul 26, 19:10 UTCJul 26, 19:50 UTC40m
2026-07-26 RYR33ZB SUF → TRS Jul 26, 17:00 UTCJul 26, 18:20 UTC1h 20m
2026-07-26 RYR20AU DUB → AMS Jul 26, 14:35 UTCJul 26, 15:35 UTC1h 0m
2026-07-26 RYR165E MAD → DUB Jul 26, 11:10 UTCJul 26, 13:20 UTC2h 10m
2026-07-26 RYR31VW IBZ → MAD Jul 26, 08:35 UTCJul 26, 09:25 UTC50m
2026-07-26 RYR7DU BRS → GNB Jul 26, 06:55 UTCJul 26, 07:40 UTC45m
2026-07-25 RYR1ZK GOT → BGY Jul 25, 22:00 UTCJul 25, 22:45 UTC45m
2026-07-25 RYR12GP MAN → ALC Jul 25, 20:25 UTCJul 25, 21:10 UTC45m
2026-07-25 RYR26UU FAO → EIN Jul 25, 17:00 UTCJul 25, 19:15 UTC2h 15m
2026-07-25 RYR78PK - Jul 25, 14:30 UTCJul 25, 15:35 UTC1h 5m
2026-07-25 RYR654Y FCO → PVK Jul 25, 12:20 UTCJul 25, 13:10 UTC50m
2026-07-25 RYR1VB PMO → FCO Jul 25, 10:10 UTCJul 25, 11:00 UTC50m
2026-07-25 RYR65QN FCO → PMO Jul 25, 08:35 UTCJul 25, 09:15 UTC40m
2026-07-25 RYR243X BDS → FCO Jul 25, 06:25 UTCJul 25, 07:10 UTC45m
2026-07-25 RYR5842 FCO → BDS Jul 25, 04:55 UTCJul 25, 05:35 UTC40m
2026-07-24 RYR25XX BCN → FCO Jul 24, 22:50 UTCJul 25, 00:05 UTC1h 15m
2026-07-24 RYR1TP - Jul 24, 20:25 UTCJul 24, 21:50 UTC1h 25m
2026-07-24 RYR8KY REU → DUB Jul 24, 17:40 UTCJul 24, 18:55 UTC1h 15m
2026-07-24 RYR54SE FCO → BCN Jul 24, 15:15 UTCJul 24, 16:35 UTC1h 20m
2026-07-24 RYR243X - Jul 24, 12:05 UTCJul 24, 13:10 UTC1h 5m
2026-07-24 RYR5842 - Jul 24, 10:20 UTCJul 24, 11:05 UTC45m
2026-07-24 RYR1TZ BRU → FCO Jul 24, 07:00 UTCJul 24, 08:30 UTC1h 30m
2026-07-24 RYR7JZ PMI → CRL Jul 24, 04:05 UTCJul 24, 06:00 UTC1h 55m
2026-07-24 RYR87EB ZAG → FCO Jul 24, 00:15 UTCJul 24, 01:05 UTC50m
2026-07-23 RYR64GG FCO → ZAG Jul 23, 22:15 UTCJul 23, 23:05 UTC50m
2026-07-23 RYR4WT STN → BUD Jul 23, 20:00 UTCJul 23, 21:00 UTC1h 0m
2026-07-23 RYR75EU FCO → CTA Jul 23, 18:15 UTCJul 23, 19:00 UTC45m
2026-07-23 RYR25XX BCN → FCO Jul 23, 15:55 UTCJul 23, 17:05 UTC1h 10m
2026-07-23 RYR7718 - Jul 23, 11:55 UTCJul 23, 13:35 UTC1h 40m
2026-07-23 RYR1MA - Jul 23, 09:10 UTCJul 23, 10:25 UTC1h 15m
2026-07-23 RYR8TP - Jul 23, 06:25 UTCJul 23, 08:00 UTC1h 35m
2026-07-23 RYR35PE BCN → VCE Jul 23, 04:10 UTCJul 23, 05:30 UTC1h 20m
2026-07-22 RYR9174 BRS → BCN Jul 22, 20:35 UTCJul 22, 22:20 UTC1h 45m
2026-07-22 RYR64ZK BCN → BRS Jul 22, 17:45 UTCJul 22, 19:35 UTC1h 50m
2026-07-22 RYR81XM TRN → BCN Jul 22, 15:35 UTCJul 22, 16:35 UTC1h 0m
2026-07-22 RYR63CD BCN → TRN Jul 22, 13:35 UTCJul 22, 14:40 UTC1h 5m
2026-07-22 RYR42TA LPL → BCN Jul 22, 10:20 UTCJul 22, 12:05 UTC1h 45m
2026-07-22 RYR4PG ZAZ → STN Jul 22, 03:50 UTCJul 22, 04:20 UTC30m
2026-07-21 RYR50ZJ - Jul 21, 21:05 UTCJul 21, 22:30 UTC1h 25m
2026-07-21 RYR62NA - Jul 21, 18:35 UTCJul 21, 19:50 UTC1h 15m
2026-07-21 RYR1FR TRN → NAP Jul 21, 15:55 UTCJul 21, 17:30 UTC1h 35m
2026-07-21 RYR87CX BCN → BRU Jul 21, 13:05 UTCJul 21, 15:00 UTC1h 55m
2026-07-21 RYR4WG FAO → STN Jul 21, 10:35 UTCJul 21, 11:45 UTC1h 10m
2026-07-21 RYR21BU - Jul 21, 07:55 UTCJul 21, 09:55 UTC2h 0m
2026-07-21 RYR1246 SVQ → BVA Jul 21, 04:40 UTCJul 21, 06:45 UTC2h 5m
2026-07-20 RYR8SK AMS → DUB Jul 20, 22:35 UTCJul 20, 23:55 UTC1h 19m
2026-07-20 RYR9GB - Jul 20, 19:45 UTCJul 20, 21:10 UTC1h 25m
2026-07-20 RYR78QQ - Jul 20, 16:40 UTCJul 20, 18:50 UTC2h 10m
2026-07-20 RYR17RY SVQ → TRN Jul 20, 13:35 UTCJul 20, 15:35 UTC2h 0m

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

Mode-S 4D220A frequently asked

What is Mode-S code 4D220A?
4D220A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-QDG.
Where is Mode-S 4D220A registered?
Mode-S code 4D220A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D220A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D220A, octal 23221012, decimal 5,054,986.
What flights does 4D220A operate?
Mode-S 4D220A has broadcast 20 distinct callsigns, including RYR9GB, RYR966P, RYR4WG, RYR95ZC, RYR8TP.