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 2h ago
Flights observed
315
Distinct callsigns
20
Country
MT
Last broadcast
2h ago

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
RYR966P Ryanair 4 2026-04-18
RYR9GB - 3 2026-04-18
RYR8DY Ryanair 3 2026-04-13
RYR78UE Ryanair 3 2026-04-15
RYR6LY - 3 2026-04-15
RYR5WG - 3 2026-04-14
RYR2VB - 3 2026-04-13
RYR2ST Ryanair 3 2026-05-08
RYR96VR - 2 2026-04-16
RYR9141 Ryanair 2 2026-05-21
RYR8SK - 2 2026-04-17
RYR8BF Ryanair 2 2026-05-17
RYR81SU - 2 2026-04-15
RYR81BC Ryanair 2 2026-05-17
RYR7NT Ryanair 2 2026-05-11
RYR7CQ Ryanair 2 2026-05-02
RYR7826 Ryanair 2 2026-05-20
RYR709E Ryanair 2 2026-05-15
RYR6GP Ryanair 2 2026-05-25
RYR6BM Ryanair 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR61LJ PMI → SVQ May 30, 17:05 UTCMay 30, 18:15 UTC1h 10m
2026-05-30 RYR8XC LUX → STN May 30, 14:20 UTCMay 30, 16:00 UTC1h 40m
2026-05-30 RYR88PX PMI → CRL May 30, 11:15 UTCMay 30, 13:15 UTC2h 0m
2026-05-30 RYR788K STN → PMI May 30, 07:40 UTCMay 30, 09:35 UTC1h 55m
2026-05-30 RYR51MC EDI → BCN May 30, 04:15 UTCMay 30, 06:25 UTC2h 10m
2026-05-29 RYR35TJ DUB → LBA May 29, 21:55 UTCMay 29, 23:50 UTC1h 55m
2026-05-29 RYR20KX PMI → BRS May 29, 19:10 UTCMay 29, 21:15 UTC2h 5m
2026-05-29 RYR9916 RBA → TLS May 29, 16:05 UTCMay 29, 18:15 UTC2h 10m
2026-05-29 RYR9915 TLS → RBA May 29, 12:45 UTCMay 29, 15:15 UTC2h 30m
2026-05-29 RYR22AC WAW → PMI May 29, 08:25 UTCMay 29, 11:00 UTC2h 35m
2026-05-29 RYR59EK PMI → WAW May 29, 04:50 UTCMay 29, 07:35 UTC2h 45m
2026-05-28 RYR1VR ACE → MAD May 28, 22:20 UTCMay 28, 23:10 UTC50m
2026-05-28 RYR5AX PMI → MRS May 28, 20:35 UTCMay 28, 21:35 UTC1h 0m
2026-05-28 RYR24XK BER → PMI May 28, 17:15 UTCMay 28, 19:30 UTC2h 15m
2026-05-28 RYR734J PMI → BER May 28, 14:05 UTCMay 28, 16:30 UTC2h 25m
2026-05-28 RYR798V FMO → PMI May 28, 10:40 UTCMay 28, 12:40 UTC2h 0m
2026-05-28 RYR59SQ PMI → FMO May 28, 07:25 UTCMay 28, 09:35 UTC2h 10m
2026-05-28 RYR59PP LPA → MAN May 28, 05:35 UTCMay 28, 06:20 UTC45m
2026-05-28 RYR14CN PMI → MRS May 28, 03:55 UTCMay 28, 04:45 UTC50m
2026-05-27 RYR5HB VNO → FCO May 27, 18:40 UTCMay 27, 21:15 UTC2h 35m
2026-05-27 RYR8463 PMI → AAR May 27, 15:05 UTCMay 27, 17:45 UTC2h 40m
2026-05-27 RYR76VL NUE → PMI May 27, 11:40 UTCMay 27, 13:25 UTC1h 45m
2026-05-27 RYR9UM PSA → BDS May 27, 09:00 UTCMay 27, 10:50 UTC1h 50m
2026-05-27 RYR4479 NUE → VNO May 27, 06:34 UTCMay 27, 08:05 UTC1h 31m
2026-05-26 RYR37GD PMI → NUE May 26, 20:15 UTCMay 26, 21:59 UTC1h 45m
2026-05-26 RYR5SR EDI → IBZ May 26, 17:15 UTCMay 26, 19:25 UTC2h 10m
2026-05-26 RYR77FR NUE → SKG May 26, 14:30 UTCMay 26, 16:15 UTC1h 45m
2026-05-26 RYR49RX STN → ZAZ May 26, 11:44 UTCMay 26, 13:34 UTC1h 50m
2026-05-26 RYR8PJ BER → OPO May 26, 08:39 UTCMay 26, 10:20 UTC1h 40m
2026-05-26 RYR12KD STN → POZ May 26, 06:14 UTCMay 26, 07:49 UTC1h 35m
2026-05-25 RYR87XN DUB → STN May 25, 21:09 UTCMay 25, 22:00 UTC50m
2026-05-25 RYR497D STN → DUB May 25, 19:05 UTCMay 25, 19:54 UTC50m
2026-05-25 RYR4EV BUD → STN May 25, 16:05 UTCMay 25, 18:05 UTC2h 0m
2026-05-25 RYR6GP BGY → SOF May 25, 13:20 UTCMay 25, 15:20 UTC2h 0m
2026-05-25 RYR1QB BUD → AHO May 25, 09:25 UTCMay 25, 12:05 UTC2h 40m
2026-05-25 RYR28LF STN → BCN May 25, 06:10 UTCMay 25, 08:25 UTC2h 15m
2026-05-24 RYR41MD MXP → STN May 24, 19:20 UTCMay 24, 20:45 UTC1h 25m
2026-05-24 RYR2FF BDS → EIN May 24, 16:45 UTCMay 24, 18:15 UTC1h 30m
2026-05-24 RYR29AM BIQ → STN May 24, 14:30 UTCMay 24, 15:50 UTC1h 20m
2026-05-24 RYR6WD ARN → VNO May 24, 12:05 UTCMay 24, 13:30 UTC1h 25m
2026-05-24 RYR64TN BCN → STN May 24, 08:55 UTCMay 24, 10:50 UTC1h 55m
2026-05-24 RYR20ZE STN → BCN May 24, 05:55 UTCMay 24, 07:40 UTC1h 45m
2026-05-23 RYR6AZ - May 23, 21:55 UTCMay 23, 23:30 UTC1h 35m
2026-05-23 RYR5SY CIA → KRK May 23, 19:40 UTCMay 23, 21:05 UTC1h 25m
2026-05-23 RYR314U SKG → STN May 23, 16:25 UTCMay 23, 18:30 UTC2h 6m
2026-05-23 RYR314U SKG → STN May 23, 15:35 UTCMay 23, 16:20 UTC45m
2026-05-23 RYR7668 OTP → SKG May 23, 13:35 UTCMay 23, 14:40 UTC1h 5m
2026-05-23 RYR1UB CIA → AQJ May 23, 11:55 UTCMay 23, 12:50 UTC55m
2026-05-23 RYR5VA KRK → BLL May 23, 09:25 UTCMay 23, 11:00 UTC1h 35m
2026-05-23 RYR65FR VLC → TSF May 23, 06:35 UTCMay 23, 08:25 UTC1h 50m

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 2h ago.
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 RYR966P, RYR9GB, RYR8DY, RYR78UE, RYR6LY.