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sensors Mode-S transponder

4D233D

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-XOB · CESSNA 560XL Citation XLS

Hex
4D233D
Octal
23221475
Decimal
5,055,293
Country
MT
Tail
9H-XOB
Type
C56X
No current signal · last broadcast Jul 21, 16:05 UTC
Flights observed
205
Distinct callsigns
6
Country
MT
Last broadcast
Jul 21, 16:05 UTC

Last known position

Most recent position reported by Mode-S 4D233D.

Country allocation

The ICAO 24-bit address 4D233D 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 6 distinct

Callsign Airline Flights Last seen
VJT659 - 197 2026-07-21
VJT705X - 2 2026-06-03
VJT446Y - 2 2026-04-15
NA - 2 2026-05-01
VJT311R - 1 2026-05-27
VJT199T - 1 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 VJT659 - Jul 21, 14:50 UTCJul 21, 16:00 UTC1h 10m
2026-07-21 VJT659 - Jul 21, 12:30 UTCJul 21, 13:00 UTC30m
2026-07-20 VJT659 - Jul 20, 17:10 UTCJul 20, 18:45 UTC1h 35m
2026-07-20 VJT659 - Jul 20, 13:25 UTCJul 20, 14:45 UTC1h 20m
2026-07-20 VJT659 - Jul 20, 11:05 UTCJul 20, 12:30 UTC1h 25m
2026-07-20 VJT659 - Jul 20, 08:00 UTCJul 20, 09:00 UTC1h 0m
2026-07-19 VJT659 MAD → AHO Jul 19, 10:05 UTCJul 19, 11:30 UTC1h 25m
2026-07-19 VJT659 IBZ → MAD Jul 19, 07:50 UTCJul 19, 08:40 UTC50m
2026-07-19 VJT659 - Jul 19, 05:45 UTCJul 19, 06:10 UTC25m
2026-07-18 VJT659 CAT → VLC Jul 18, 15:30 UTCJul 18, 16:40 UTC1h 10m
2026-07-18 VJT659 - Jul 18, 10:10 UTCJul 18, 14:35 UTC4h 25m
2026-07-18 VJT659 - Jul 18, 06:45 UTCJul 18, 08:55 UTC2h 10m
2026-07-17 VJT659 - Jul 17, 14:20 UTCJul 17, 15:00 UTC40m
2026-07-17 VJT659 - Jul 17, 12:10 UTCJul 17, 12:55 UTC45m
2026-07-17 VJT659 - Jul 17, 10:35 UTCJul 17, 11:20 UTC45m
2026-07-17 VJT659 - Jul 17, 08:10 UTCJul 17, 08:45 UTC35m
2026-07-16 VJT659 - Jul 16, 13:34 UTCJul 16, 15:45 UTC2h 10m
2026-07-16 VJT659 - Jul 16, 09:15 UTCJul 16, 12:25 UTC3h 10m
2026-07-15 VJT659 - Jul 15, 17:55 UTCJul 15, 20:55 UTC3h 0m
2026-07-15 VJT659 IBZ → WMI Jul 15, 12:40 UTCJul 15, 15:35 UTC2h 55m
2026-07-14 VJT659 - Jul 14, 14:45 UTCJul 14, 16:00 UTC1h 15m
2026-07-14 VJT659 BHD → NCE Jul 14, 10:45 UTCJul 14, 13:20 UTC2h 35m
2026-07-14 VJT659 - Jul 14, 07:50 UTCJul 14, 09:15 UTC1h 25m
2026-07-13 VJT659 - Jul 13, 15:15 UTCJul 13, 16:50 UTC1h 35m
2026-07-13 VJT659 - Jul 13, 12:20 UTCJul 13, 13:15 UTC55m
2026-07-13 VJT659 GDN → GDN Jul 13, 10:00 UTCJul 13, 10:50 UTC50m
2026-07-12 VJT659 - Jul 12, 17:15 UTCJul 12, 19:45 UTC2h 30m
2026-07-12 VJT659 - Jul 12, 13:05 UTCJul 12, 16:01 UTC2h 55m
2026-07-12 VJT659 BOH → LTN Jul 12, 10:05 UTCJul 12, 10:35 UTC30m
2026-07-10 VJT659 ZRH → BOH Jul 10, 16:35 UTCJul 10, 18:00 UTC1h 25m
2026-07-10 VJT659 - Jul 10, 12:25 UTCJul 10, 13:10 UTC45m
2026-07-10 VJT659 - Jul 10, 10:15 UTCJul 10, 10:50 UTC35m
2026-07-10 VJT659 OMR → MXP Jul 10, 06:55 UTCJul 10, 08:45 UTC1h 50m
2026-07-09 VJT659 - Jul 9, 16:35 UTCJul 9, 17:35 UTC1h 0m
2026-07-09 VJT659 - Jul 9, 14:35 UTCJul 9, 15:00 UTC25m
2026-07-09 VJT659 - Jul 9, 11:25 UTCJul 9, 12:50 UTC1h 25m
2026-07-09 VJT659 LIN → CIA Jul 9, 09:15 UTCJul 9, 10:05 UTC50m
2026-07-08 VJT659 - Jul 8, 15:45 UTCJul 8, 16:40 UTC55m
2026-07-05 VJT659 CFR → LUX Jul 5, 14:20 UTCJul 5, 15:15 UTC55m
2026-07-05 VJT659 - Jul 5, 11:45 UTCJul 5, 13:05 UTC1h 20m
2026-07-04 VJT659 - Jul 4, 21:15 UTCJul 4, 22:20 UTC1h 5m
2026-07-04 VJT659 - Jul 4, 14:00 UTCJul 4, 14:45 UTC45m
2026-07-04 VJT659 - Jul 4, 11:35 UTCJul 4, 13:05 UTC1h 30m
2026-07-03 VJT659 - Jul 3, 09:15 UTCJul 3, 09:55 UTC40m
2026-07-03 VJT659 - Jul 3, 06:50 UTCJul 3, 07:50 UTC1h 0m
2026-07-02 VJT659 - Jul 2, 13:15 UTCJul 2, 14:20 UTC1h 5m
2026-07-02 VJT659 - Jul 2, 09:45 UTCJul 2, 11:15 UTC1h 30m
2026-07-01 VJT659 - Jul 1, 15:20 UTCJul 1, 16:45 UTC1h 25m
2026-07-01 VJT659 - Jul 1, 12:40 UTCJul 1, 13:45 UTC1h 5m
2026-07-01 VJT659 - Jul 1, 11:10 UTCJul 1, 11:30 UTC20m

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

Mode-S 4D233D frequently asked

What is Mode-S code 4D233D?
4D233D is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-XOB.
Where is Mode-S 4D233D registered?
Mode-S code 4D233D is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D233D broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 16:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D233D, octal 23221475, decimal 5,055,293.
What flights does 4D233D operate?
Mode-S 4D233D has broadcast 6 distinct callsigns, including VJT659, VJT705X, VJT446Y, NA, VJT311R.