sensors Mode-S transponder

4D2387

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2387
Octal
23221607
Decimal
5,055,367
Country
MT
Tail
9H-VUZ
Type
B38M
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
598
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S 4D2387.

Country allocation

The ICAO 24-bit address 4D2387 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
RYR94JD Ryanair 9 2026-05-19
RYR55PD Ryanair 8 2026-05-19
RYR97XF Ryanair 6 2026-05-18
RYR7WK - 6 2026-06-27
RYR5BH Ryanair 6 2026-05-18
RYR12YU - 6 2026-06-27
RYR8PA - 5 2026-06-28
RYR55ED Ryanair 5 2026-06-28
RYR15DY Ryanair 5 2026-05-17
RYR9SW Ryanair 4 2026-05-16
RYR7664 Ryanair 4 2026-05-16
RYR57CE Ryanair 4 2026-05-18
RYR551A Ryanair 4 2026-05-18
RYR10EC Ryanair 4 2026-05-17
RYR9VG - 3 2026-07-24
RYR9424 Ryanair 3 2026-04-17
RYR9329 Ryanair 3 2026-05-16
RYR8SL - 3 2026-07-12
RYR8SC - 3 2026-07-24
RYR8947 Ryanair 3 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR784M KRK → GOT Jul 26, 20:45 UTCJul 26, 21:45 UTC1h 0m
2026-07-26 RYR7841 GOT → KRK Jul 26, 18:30 UTCJul 26, 19:55 UTC1h 25m
2026-07-26 RYR7398 - Jul 26, 15:50 UTCJul 26, 17:45 UTC1h 55m
2026-07-26 RYR7397 GOT → PUY Jul 26, 13:00 UTCJul 26, 14:55 UTC1h 55m
2026-07-26 RYR834F STN → GOT Jul 26, 10:30 UTCJul 26, 11:50 UTC1h 20m
2026-07-26 RYR3SG BER → BRU Jul 26, 07:55 UTCJul 26, 09:35 UTC1h 40m
2026-07-26 RYR52TC PMO → FMM Jul 26, 05:25 UTCJul 26, 06:50 UTC1h 26m
2026-07-25 RYR2JF CRL → WMI Jul 25, 21:00 UTCJul 25, 22:50 UTC1h 50m
2026-07-25 RYR2ST MAN → FUE Jul 25, 18:15 UTCJul 25, 19:55 UTC1h 40m
2026-07-25 RYR65SL GRO → STN Jul 25, 15:30 UTCJul 25, 17:15 UTC1h 45m
2026-07-25 RYR772P STN → GRO Jul 25, 12:40 UTCJul 25, 14:25 UTC1h 45m
2026-07-25 RYR9P LPA → HHN Jul 25, 09:00 UTCJul 25, 11:25 UTC2h 25m
2026-07-25 RYR2UX STN → SOF Jul 25, 05:35 UTCJul 25, 07:35 UTC2h 0m
2026-07-24 RYR9VG - Jul 24, 20:40 UTCJul 24, 22:00 UTC1h 20m
2026-07-24 RYR8SC - Jul 24, 18:10 UTCJul 24, 19:35 UTC1h 25m
2026-07-24 RYR6TX VRN → STN Jul 24, 15:05 UTCJul 24, 16:55 UTC1h 50m
2026-07-24 RYR35MN CLJ → BVA Jul 24, 12:30 UTCJul 24, 13:55 UTC1h 25m
2026-07-24 RYR12DE AOI → STN Jul 24, 09:30 UTCJul 24, 11:35 UTC2h 5m
2026-07-24 RYR2LW RIX → LBA Jul 24, 06:45 UTCJul 24, 08:30 UTC1h 45m
2026-07-23 RYR56RR - Jul 23, 20:00 UTCJul 23, 23:00 UTC3h 0m
2026-07-23 RYR67JA - Jul 23, 16:25 UTCJul 23, 18:55 UTC2h 30m
2026-07-23 RYR8591 STN → ORK Jul 23, 11:15 UTCJul 23, 15:10 UTC3h 55m
2026-07-23 RYR9VX - Jul 23, 06:30 UTCJul 23, 09:50 UTC3h 20m
2026-07-22 RYR551 - Jul 22, 21:35 UTCJul 22, 23:00 UTC1h 25m
2026-07-22 RYR10GJ - Jul 22, 19:30 UTCJul 22, 20:50 UTC1h 20m
2026-07-22 RYR93VX VLC → STN Jul 22, 16:20 UTCJul 22, 18:35 UTC2h 15m
2026-07-22 RYR47XK - Jul 22, 13:20 UTCJul 22, 15:20 UTC2h 0m
2026-07-22 RYR5FG - Jul 22, 10:20 UTCJul 22, 12:25 UTC2h 5m
2026-07-21 RYR5UG OTP → DUB Jul 21, 22:05 UTCJul 22, 02:00 UTC3h 55m
2026-07-21 RYR9NZ - Jul 21, 17:45 UTCJul 21, 21:05 UTC3h 20m
2026-07-21 RYR146M BUD → STN Jul 21, 06:25 UTCJul 21, 14:55 UTC8h 30m
2026-07-20 RYR70XA - Jul 20, 20:40 UTCJul 20, 22:50 UTC2h 10m
2026-07-20 RYR36AQ - Jul 20, 17:55 UTCJul 20, 19:50 UTC1h 55m
2026-07-20 RYR39FX AAR → STN Jul 20, 15:20 UTCJul 20, 16:45 UTC1h 25m
2026-07-20 RYR9SE STN → AAR Jul 20, 13:15 UTCJul 20, 14:30 UTC1h 15m
2026-07-20 RYR8AE - Jul 20, 10:30 UTCJul 20, 12:10 UTC1h 40m
2026-07-20 RYR4NX - Jul 20, 08:05 UTCJul 20, 09:35 UTC1h 30m
2026-07-19 RYR2907 - Jul 19, 21:00 UTCJul 20, 00:30 UTC3h 30m
2026-07-19 RYR42CH - Jul 19, 16:55 UTCJul 19, 20:00 UTC3h 5m
2026-07-19 RYR9LD OTP → STN Jul 19, 12:45 UTCJul 19, 15:45 UTC3h 0m
2026-07-19 RYR4HH - Jul 19, 08:20 UTCJul 19, 11:00 UTC2h 40m
2026-07-18 RYR587A - Jul 18, 15:45 UTCJul 18, 18:40 UTC2h 55m
2026-07-18 RYR73EL - Jul 18, 12:45 UTCJul 18, 14:10 UTC1h 25m
2026-07-18 RYR20WJ - Jul 18, 10:20 UTCJul 18, 11:45 UTC1h 25m
2026-07-18 RYR769T - Jul 18, 07:30 UTCJul 18, 08:45 UTC1h 15m
2026-07-18 RYR69TU SUF → MXP Jul 18, 05:00 UTCJul 18, 06:25 UTC1h 25m
2026-07-17 RYR9QM - Jul 17, 21:15 UTCJul 17, 22:29 UTC1h 15m
2026-07-17 RYR6FP - Jul 17, 19:05 UTCJul 17, 20:25 UTC1h 20m
2026-07-17 RYR65HL - Jul 17, 16:59 UTCJul 17, 18:10 UTC1h 10m
2026-07-17 RYR465X - Jul 17, 14:39 UTCJul 17, 16:00 UTC1h 20m

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

Mode-S 4D2387 frequently asked

What is Mode-S code 4D2387?
4D2387 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VUZ.
Where is Mode-S 4D2387 registered?
Mode-S code 4D2387 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2387 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2387, octal 23221607, decimal 5,055,367.
What flights does 4D2387 operate?
Mode-S 4D2387 has broadcast 20 distinct callsigns, including RYR94JD, RYR55PD, RYR97XF, RYR7WK, RYR5BH.