Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4D2211

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2211
Octal
23221021
Decimal
5,054,993
Country
MT
Tail
9H-QBU
Type
B738
Broadcasting now · callsign RYR21LA · 38,000 ft
Flights observed
321
Distinct callsigns
20
Country
MT
Last broadcast
2h ago

Current position

4D2211 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D2211 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
RYR34MP Ryanair 5 2026-05-27
RYR86VH Ryanair 3 2026-05-27
RYR80JJ - 3 2026-04-13
RYR78YR Ryanair 3 2026-05-26
RYR73VA - 3 2026-04-20
RYR62PM Ryanair 3 2026-04-16
RYR1PJ Ryanair 3 2026-05-27
RYR19HF Ryanair 3 2026-05-27
RYR98KJ Ryanair 2 2026-04-14
RYR96RZ Ryanair 2 2026-05-12
RYR94XU Ryanair 2 2026-05-25
RYR93XA Ryanair 2 2026-04-17
RYR93HA Ryanair 2 2026-05-17
RYR92JA Ryanair 2 2026-05-21
RYR89XQ Ryanair 2 2026-04-14
RYR84ZP Ryanair 2 2026-05-28
RYR81PY Ryanair 2 2026-05-14
RYR80FX Ryanair 2 2026-04-16
RYR79HF Ryanair 2 2026-05-25
RYR6CB Ryanair 2 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR64CZ VNO → HHN May 30, 04:45 UTCMay 30, 06:35 UTC1h 50m
2026-05-29 RYR816C RAK → CRL May 29, 17:25 UTCMay 29, 20:30 UTC3h 5m
2026-05-29 RYR54FF CRL → RAK May 29, 13:05 UTCMay 29, 15:45 UTC2h 40m
2026-05-29 RYR8AU BZG → STN May 29, 10:10 UTCMay 29, 12:00 UTC1h 50m
2026-05-29 RYR29KK MAH → MAD May 29, 07:35 UTCMay 29, 08:35 UTC1h 0m
2026-05-29 RYR36GA MAD → MAH May 29, 05:30 UTCMay 29, 06:35 UTC1h 5m
2026-05-28 RYR4295 MAH → MAD May 28, 19:20 UTCMay 28, 20:25 UTC1h 5m
2026-05-28 RYR8RL STN → TRN May 28, 17:10 UTCMay 28, 18:10 UTC1h 0m
2026-05-28 RYR6UK - May 28, 13:15 UTCMay 28, 14:55 UTC1h 40m
2026-05-28 RYR9483 BRI → VIE May 28, 10:40 UTCMay 28, 11:45 UTC1h 5m
2026-05-28 RYR9482 VIE → BRI May 28, 08:30 UTCMay 28, 09:40 UTC1h 10m
2026-05-28 RYR84ZP TRN → PMO May 28, 05:50 UTCMay 28, 07:10 UTC1h 20m
2026-05-28 RYR114K PMO → TRN May 28, 03:50 UTCMay 28, 05:05 UTC1h 15m
2026-05-27 RYR86VH CRL → PMO May 27, 20:00 UTCMay 27, 22:00 UTC2h 0m
2026-05-27 RYR19HF PMO → CRL May 27, 17:15 UTCMay 27, 19:20 UTC2h 5m
2026-05-27 RYR1PJ MLA → ATH May 27, 15:35 UTCMay 27, 16:10 UTC35m
2026-05-27 RYR34MP PMO → FCO May 27, 13:40 UTCMay 27, 14:30 UTC50m
2026-05-27 RYR5BC MAD → PMI May 27, 12:00 UTCMay 27, 12:50 UTC50m
2026-05-27 RYR23YV PMO → BRI May 27, 10:20 UTCMay 27, 11:15 UTC55m
2026-05-27 RYR6302 EDI → CRL May 27, 07:25 UTCMay 27, 09:30 UTC2h 5m
2026-05-27 RYR938B - May 27, 04:19 UTCMay 27, 06:20 UTC2h 0m
2026-05-26 RYR3FZ MAD → STN May 26, 19:55 UTCMay 26, 21:04 UTC1h 10m
2026-05-26 RYR55PN PMO → PMF May 26, 17:59 UTCMay 26, 19:05 UTC1h 5m
2026-05-26 RYR9CX ALC → VXO May 26, 15:09 UTCMay 26, 16:59 UTC1h 50m
2026-05-26 RYR7873 PMO → MAD May 26, 11:39 UTCMay 26, 13:29 UTC1h 50m
2026-05-26 RYR78YR FCO → PMO May 26, 09:55 UTCMay 26, 10:29 UTC35m
2026-05-26 RYR34MP PMO → FCO May 26, 07:59 UTCMay 26, 08:39 UTC40m
2026-05-26 RYR75TP FCO → PMO May 26, 05:59 UTCMay 26, 06:34 UTC35m
2026-05-26 RYR29SA PMO → FCO May 26, 04:10 UTCMay 26, 04:50 UTC40m
2026-05-25 RYR33RN STN → PMO May 25, 19:10 UTCMay 25, 21:35 UTC2h 25m
2026-05-25 RYR6CB SNN → LPA May 25, 15:40 UTCMay 25, 18:10 UTC2h 30m
2026-05-25 RYR73GR BLQ → PMO May 25, 13:30 UTCMay 25, 14:25 UTC55m
2026-05-25 RYR9BV MAN → TFS May 25, 11:30 UTCMay 25, 12:35 UTC1h 5m
2026-05-25 RYR79HF BVA → PMO May 25, 08:20 UTCMay 25, 10:25 UTC2h 5m
2026-05-25 RYR94XU CAG → BVA May 25, 05:15 UTCMay 25, 07:20 UTC2h 5m
2026-05-24 RYR142H PMO → VRN May 24, 19:45 UTCMay 24, 20:50 UTC1h 5m
2026-05-24 RYR1PJ MLA → ATH May 24, 18:10 UTCMay 24, 18:55 UTC45m
2026-05-24 RYR34MP PMO → FCO May 24, 16:25 UTCMay 24, 17:10 UTC45m
2026-05-24 RYR86VH CRL → PMO May 24, 13:20 UTCMay 24, 15:20 UTC2h 0m
2026-05-24 RYR19HF PMO → CRL May 24, 10:15 UTCMay 24, 12:20 UTC2h 5m
2026-05-24 RYR84ZP TRN → PMO May 24, 08:00 UTCMay 24, 09:15 UTC1h 15m
2026-05-24 RYR114K PMO → TRN May 24, 05:35 UTCMay 24, 06:50 UTC1h 15m
2026-05-23 RYR79HF BVA → PMO May 23, 20:55 UTCMay 23, 22:45 UTC1h 50m
2026-05-23 RYR94XU CAG → BVA May 23, 18:05 UTCMay 23, 20:10 UTC2h 6m
2026-05-23 RYR13GP BRI → PMO May 23, 16:30 UTCMay 23, 17:05 UTC35m
2026-05-23 RYR728P PMO → BRI May 23, 14:55 UTCMay 23, 15:40 UTC45m
2026-05-23 RYR86VH CRL → PMO May 23, 11:45 UTCMay 23, 13:45 UTC2h 0m
2026-05-23 RYR19HF PMO → CRL May 23, 08:10 UTCMay 23, 10:15 UTC2h 5m
2026-05-23 RYR78YR FCO → PMO May 23, 06:20 UTCMay 23, 07:00 UTC40m
2026-05-23 RYR34MP PMO → FCO May 23, 04:40 UTCMay 23, 05:25 UTC45m

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

Mode-S 4D2211 frequently asked

What is Mode-S code 4D2211?
4D2211 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-QBU.
Where is Mode-S 4D2211 registered?
Mode-S code 4D2211 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2211 broadcasting right now?
Yes. Mode-S 4D2211 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2211, octal 23221021, decimal 5,054,993.
What flights does 4D2211 operate?
Mode-S 4D2211 has broadcast 20 distinct callsigns, including RYR34MP, RYR86VH, RYR80JJ, RYR78YR, RYR73VA.