sensors Mode-S transponder

4D2349

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-VUJ · BOEING 737 MAX 8

Hex
4D2349
Octal
23221511
Decimal
5,055,305
Country
MT
Tail
9H-VUJ
Type
B38M
No current signal · last broadcast 3h ago
Flights observed
535
Distinct callsigns
20
Country
MT
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4D2349.

Country allocation

The ICAO 24-bit address 4D2349 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
RYR99CN Ryanair 9 2026-06-08
RYR1KH Ryanair 9 2026-06-08
RYR88ZF Ryanair 7 2026-06-12
RYR81WZ Ryanair 7 2026-06-12
RYR399Y Ryanair 7 2026-06-08
RYR315R Ryanair 7 2026-06-16
RYR9VB Ryanair 6 2026-06-08
RYR44HG Ryanair 6 2026-06-16
RYR98SG Ryanair 5 2026-04-21
RYR6ZE Ryanair 5 2026-06-08
RYR61SZ Ryanair 5 2026-05-06
RYR53NF Ryanair 5 2026-05-10
RYR29NH Ryanair 5 2026-05-10
RYR136H Ryanair 5 2026-05-06
RYR9267 Ryanair 4 2026-06-12
RYR9266 Ryanair 4 2026-06-12
RYR7PJ Ryanair 4 2026-05-23
RYR6UR Ryanair 4 2026-06-11
RYR6H Ryanair 4 2026-06-08
RYR67RT Ryanair 4 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RYR2MN OPO → DUB Jul 14, 21:50 UTCJul 14, 23:40 UTC1h 49m
2026-07-14 RYR81YQ - Jul 14, 18:40 UTCJul 14, 20:45 UTC2h 5m
2026-07-14 RYR6FH - Jul 14, 17:15 UTCJul 14, 17:45 UTC30m
2026-07-14 RYR69KF DUB → KIR Jul 14, 15:50 UTCJul 14, 16:20 UTC30m
2026-07-14 RYR10EC - Jul 14, 13:45 UTCJul 14, 14:30 UTC45m
2026-07-14 RYR15DY DUB → LBA Jul 14, 12:20 UTCJul 14, 12:55 UTC35m
2026-07-14 RYR89YH - Jul 14, 08:45 UTCJul 14, 11:15 UTC2h 30m
2026-07-14 RYR1ZR DUB → WMI Jul 14, 05:30 UTCJul 14, 07:55 UTC2h 25m
2026-07-13 RYR6MK - Jul 13, 18:50 UTCJul 13, 21:10 UTC2h 20m
2026-07-13 RYR9NN DUB → FAO Jul 13, 15:25 UTCJul 13, 17:55 UTC2h 30m
2026-07-13 RYR7901 - Jul 13, 13:00 UTCJul 13, 13:40 UTC40m
2026-07-13 RYR5151 - Jul 13, 11:25 UTCJul 13, 12:10 UTC45m
2026-07-13 RYR6NR - Jul 13, 08:25 UTCJul 13, 10:15 UTC1h 50m
2026-07-13 RYR34PP DUB → CPH Jul 13, 05:45 UTCJul 13, 07:35 UTC1h 50m
2026-07-12 RYR8ZP - Jul 12, 19:05 UTCJul 12, 21:45 UTC2h 40m
2026-07-12 RYR93SP - Jul 12, 15:05 UTCJul 12, 17:25 UTC2h 20m
2026-07-12 RYR14RE - Jul 12, 12:50 UTCJul 12, 13:55 UTC1h 5m
2026-07-12 RYR41BZ DUB → STN Jul 12, 10:55 UTCJul 12, 11:55 UTC1h 0m
2026-07-12 RYR501G - Jul 12, 07:40 UTCJul 12, 09:30 UTC1h 50m
2026-07-12 RYR66KU - Jul 12, 04:55 UTCJul 12, 06:30 UTC1h 35m
2026-07-11 RYR50WM IBZ → DUB Jul 11, 20:45 UTCJul 11, 23:05 UTC2h 20m
2026-07-11 RYR87ZG DUB → IBZ Jul 11, 17:20 UTCJul 11, 19:50 UTC2h 30m
2026-07-11 RYR3JQ RHO → DUB Jul 11, 11:10 UTCJul 11, 15:35 UTC4h 25m
2026-07-11 RYR60ZG - Jul 11, 06:01 UTCJul 11, 10:05 UTC4h 5m
2026-07-10 RYR36ZP - Jul 10, 20:25 UTCJul 11, 00:10 UTC3h 45m
2026-07-10 RYR51AV - Jul 10, 16:10 UTCJul 10, 19:25 UTC3h 15m
2026-07-10 RYR7ZW LGW → DUB Jul 10, 14:05 UTCJul 10, 15:00 UTC55m
2026-07-10 RYR5UJ - Jul 10, 11:40 UTCJul 10, 12:40 UTC1h 0m
2026-07-10 RYR60LN - Jul 10, 08:45 UTCJul 10, 10:40 UTC1h 55m
2026-07-10 RYR90RJ - Jul 10, 05:50 UTCJul 10, 07:45 UTC1h 55m
2026-07-09 RYR6VP ALC → LIS Jul 9, 14:40 UTCJul 9, 22:50 UTC8h 10m
2026-07-09 RYR986M - Jul 9, 10:40 UTCJul 9, 13:25 UTC2h 45m
2026-07-09 RYR33RX - Jul 9, 06:25 UTCJul 9, 09:05 UTC2h 40m
2026-07-08 RYR1BY REU → DUB Jul 8, 21:40 UTCJul 8, 23:35 UTC1h 55m
2026-07-08 RYR77EU - Jul 8, 18:35 UTCJul 8, 20:40 UTC2h 5m
2026-07-08 RYR79SB - Jul 8, 15:10 UTCJul 8, 17:30 UTC2h 20m
2026-07-08 RYR39EV DUB → VLC Jul 8, 11:55 UTCJul 8, 14:10 UTC2h 15m
2026-07-08 RYR3QZ - Jul 8, 08:25 UTCJul 8, 10:50 UTC2h 25m
2026-07-08 RYR40TF - Jul 8, 04:55 UTCJul 8, 07:15 UTC2h 20m
2026-07-07 RYR7HV - Jul 7, 20:50 UTCJul 8, 00:15 UTC3h 25m
2026-07-07 RYR95WA - Jul 7, 16:45 UTCJul 7, 19:40 UTC2h 55m
2026-07-07 RYR23SN BUD → DUB Jul 7, 12:45 UTCJul 7, 15:40 UTC2h 55m
2026-07-07 RYR4VA - Jul 7, 09:25 UTCJul 7, 11:55 UTC2h 30m
2026-07-07 RYR9MP - Jul 7, 07:50 UTCJul 7, 08:30 UTC40m
2026-07-07 RYR38SX - Jul 7, 06:05 UTCJul 7, 06:45 UTC40m
2026-07-06 RYR8ZP - Jul 6, 18:35 UTCJul 6, 21:20 UTC2h 45m
2026-07-06 RYR93SP - Jul 6, 14:55 UTCJul 6, 17:25 UTC2h 30m
2026-07-06 RYR2AJ MAN → DUB Jul 6, 13:15 UTCJul 6, 13:55 UTC40m
2026-07-06 RYR554 DUB → MAN Jul 6, 11:45 UTCJul 6, 12:20 UTC35m
2026-07-06 RYR69WA WRO → DUB Jul 6, 08:15 UTCJul 6, 10:45 UTC2h 30m

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

Mode-S 4D2349 frequently asked

What is Mode-S code 4D2349?
4D2349 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VUJ.
Where is Mode-S 4D2349 registered?
Mode-S code 4D2349 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2349 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2349, octal 23221511, decimal 5,055,305.
What flights does 4D2349 operate?
Mode-S 4D2349 has broadcast 20 distinct callsigns, including RYR99CN, RYR1KH, RYR88ZF, RYR81WZ, RYR399Y.