sensors Mode-S transponder

4D2304

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2304
Octal
23221404
Decimal
5,055,236
Country
MT
Tail
9H-VUF
Type
B38M
No current signal · last broadcast 5h ago
Flights observed
298
Distinct callsigns
20
Country
MT
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4D2304.

Country allocation

The ICAO 24-bit address 4D2304 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
RYR45ZB Ryanair 4 2026-04-26
RYR11BG Ryanair 4 2026-05-07
RYR98LA Ryanair 3 2026-04-14
RYR955M Ryanair 3 2026-04-16
RYR8TR Ryanair 3 2026-04-27
RYR85ZR Ryanair 3 2026-05-26
RYR84SD Ryanair 3 2026-05-16
RYR82VQ Ryanair 3 2026-05-07
RYR7MW Ryanair 3 2026-04-19
RYR64QE - 3 2026-04-14
RYR64BJ Ryanair 3 2026-04-19
RYR61AD Ryanair 3 2026-05-07
RYR594A Ryanair 3 2026-05-16
RYR31TE Ryanair 3 2026-05-06
RYR30WP Ryanair 3 2026-05-07
RYR2RA Ryanair 3 2026-04-27
RYR2KK Ryanair 3 2026-05-08
RYR20UU Ryanair 3 2026-05-08
RYR1JK Ryanair 3 2026-05-26
RYR9WD Ryanair 2 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 RYR265 SVQ → ACE May 29, 15:35 UTCMay 29, 23:45 UTC8h 10m
2026-05-29 RYR553P FAO → EMA May 29, 11:40 UTCMay 29, 13:40 UTC2h 0m
2026-05-29 RYR11BV LTN → NOC May 29, 08:20 UTCMay 29, 10:30 UTC2h 10m
2026-05-29 RYR8ZQ GOT → MAN May 29, 06:30 UTCMay 29, 07:30 UTC1h 0m
2026-05-29 RYR4BJ STN → TRN May 29, 04:30 UTCMay 29, 05:30 UTC1h 0m
2026-05-28 RYR90WG STN → BGY May 28, 23:05 UTCMay 29, 00:30 UTC1h 25m
2026-05-28 RYR46WQ BGY → STN May 28, 20:35 UTCMay 28, 22:15 UTC1h 40m
2026-05-28 RYR64SP VLC → DUB May 28, 16:10 UTCMay 28, 17:25 UTC1h 15m
2026-05-28 RYR13DX SUF → MAD May 28, 14:05 UTCMay 28, 15:15 UTC1h 10m
2026-05-28 RYR75ZH CTA → BGY May 28, 10:50 UTCMay 28, 12:15 UTC1h 25m
2026-05-28 RYR7EK CIA → LIS May 28, 08:30 UTCMay 28, 09:50 UTC1h 20m
2026-05-28 RYR9CH VIT → ALC May 28, 06:15 UTCMay 28, 07:35 UTC1h 20m
2026-05-28 RYR34EK - May 28, 03:55 UTCMay 28, 05:10 UTC1h 15m
2026-05-27 RYR7RD CRL → OTP May 27, 21:25 UTCMay 27, 22:55 UTC1h 30m
2026-05-27 RYR5WH BRS → DUB May 27, 18:50 UTCMay 27, 20:15 UTC1h 25m
2026-05-27 RYR11CV SUF → BGY May 27, 16:35 UTCMay 27, 17:50 UTC1h 15m
2026-05-27 RYR12XM BGY → SUF May 27, 14:20 UTCMay 27, 15:40 UTC1h 20m
2026-05-27 RYR3YU FAO → BER May 27, 11:05 UTCMay 27, 12:50 UTC1h 45m
2026-05-27 RYR2WZ WMI → LIS May 27, 08:20 UTCMay 27, 10:00 UTC1h 40m
2026-05-27 RYR96EU BER → BGY May 27, 06:09 UTCMay 27, 07:25 UTC1h 16m
2026-05-27 RYR97WV BGY → BER May 27, 04:04 UTCMay 27, 05:19 UTC1h 15m
2026-05-26 RYR4LN AGP → BOH May 26, 21:20 UTCMay 26, 22:59 UTC1h 40m
2026-05-26 RYR23MG BGY → VLC May 26, 18:45 UTCMay 26, 20:15 UTC1h 30m
2026-05-26 RYR9Z GPA → BRI May 26, 16:30 UTCMay 26, 17:35 UTC1h 5m
2026-05-26 RYR5KU BGY → BUD May 26, 14:30 UTCMay 26, 15:39 UTC1h 10m
2026-05-26 RYR87RR OLB → BGY May 26, 12:45 UTCMay 26, 13:34 UTC50m
2026-05-26 RYR99GJ BGY → OLB May 26, 10:39 UTCMay 26, 11:39 UTC1h 0m
2026-05-26 RYR1JK ORK → POZ May 26, 07:40 UTCMay 26, 09:49 UTC2h 10m
2026-05-26 RYR85ZR BGY → ARN May 26, 04:20 UTCMay 26, 06:39 UTC2h 20m
2026-05-25 RYR1WF MAD → BGY May 25, 20:45 UTCMay 25, 22:30 UTC1h 45m
2026-05-25 RYR91CV BGY → OTP May 25, 17:50 UTCMay 25, 19:50 UTC2h 0m
2026-05-25 RYR916R ARN → BGY May 25, 14:25 UTCMay 25, 16:45 UTC2h 20m
2026-05-25 RYR85ZR BGY → ARN May 25, 11:00 UTCMay 25, 13:25 UTC2h 25m
2026-05-25 RYR1JK ORK → POZ May 25, 07:50 UTCMay 25, 10:00 UTC2h 10m
2026-05-25 RYR82 PEG → AOI May 25, 05:35 UTCMay 25, 06:20 UTC45m
2026-05-25 RYR22PF ARN → TLL May 25, 04:10 UTCMay 25, 04:50 UTC40m
2026-05-24 RYR4645 TLL → ARN May 24, 21:10 UTCMay 24, 21:45 UTC35m
2026-05-24 RYR9RR STN → SOF May 24, 19:40 UTCMay 24, 20:20 UTC40m
2026-05-24 RYR9167 BVA → ARN May 24, 16:30 UTCMay 24, 18:35 UTC2h 5m
2026-05-24 RYR9166 ARN → BVA May 24, 13:35 UTCMay 24, 15:40 UTC2h 5m
2026-05-24 RYR9SH STN → ZAZ May 24, 08:45 UTCMay 24, 12:20 UTC3h 35m
2026-05-24 RYR6FA BOH → EGC May 24, 04:30 UTCMay 24, 07:45 UTC3h 15m
2026-05-23 RYR71ZY MRS → ARN May 23, 19:55 UTCMay 23, 22:40 UTC2h 45m
2026-05-23 RYR970Y ARN → MRS May 23, 16:25 UTCMay 23, 19:10 UTC2h 46m
2026-05-23 RYR3EQ CRL → ARN May 23, 08:45 UTCMay 23, 10:35 UTC1h 50m
2026-05-23 RYR7HJ ARN → CRL May 23, 05:30 UTCMay 23, 07:25 UTC1h 55m
2026-05-22 RYR8QX TIA → ARN May 22, 20:40 UTCMay 22, 23:25 UTC2h 45m
2026-05-22 RYR8417 ARN → TIA May 22, 16:55 UTCMay 22, 19:25 UTC2h 30m
2026-05-22 RYR82 PEG → AOI May 22, 14:00 UTCMay 22, 14:45 UTC45m
2026-05-22 RYR22PF ARN → TLL May 22, 12:30 UTCMay 22, 13:15 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-VUF page for operator, model, and routing details .

Mode-S 4D2304 frequently asked

What is Mode-S code 4D2304?
4D2304 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VUF.
Where is Mode-S 4D2304 registered?
Mode-S code 4D2304 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2304 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2304, octal 23221404, decimal 5,055,236.
What flights does 4D2304 operate?
Mode-S 4D2304 has broadcast 20 distinct callsigns, including RYR45ZB, RYR11BG, RYR98LA, RYR955M, RYR8TR.