Apparatus

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sensors Mode-S transponder

4D2320

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-BEL · DE HAVILLAND DHC-8-400 Dash 8

Hex
4D2320
Octal
23221440
Decimal
5,055,264
Country
MT
Tail
9H-BEL
Type
DH8D
No current signal · last broadcast 12h ago
Flights observed
82
Distinct callsigns
20
Country
MT
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4D2320.

Country allocation

The ICAO 24-bit address 4D2320 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
SWU1919 Swiss European Air Lines 24 2026-05-29
SWU1918 Swiss European Air Lines 23 2026-05-29
SWU1985 Swiss European Air Lines 3 2026-05-29
SWU1984 Swiss European Air Lines 3 2026-05-29
SWU1975 Swiss European Air Lines 3 2026-05-29
SWU1974 Swiss European Air Lines 3 2026-05-29
SWU2301 Swiss European Air Lines 2 2026-05-05
SWU2102 Swiss European Air Lines 2 2026-05-05
SWU1955 Swiss European Air Lines 2 2026-05-10
SWU1954 Swiss European Air Lines 2 2026-05-10
SWU701 - 1 2026-04-19
SWU601 - 1 2026-05-12
SWU2306 Swiss European Air Lines 1 2026-05-03
SWU2305 - 1 2026-05-02
SWU2302 Swiss European Air Lines 1 2026-05-05
SWU2101 - 1 2026-05-01
SWU1981 Swiss European Air Lines 1 2026-05-11
SWU1980 Swiss European Air Lines 1 2026-05-11
SWU1957 Swiss European Air Lines 1 2026-05-11
SWU1956 Swiss European Air Lines 1 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SWU1919 FCO → CRV May 29, 16:00 UTCMay 29, 16:55 UTC55m
2026-05-29 SWU1975 OMO → FCO May 29, 13:55 UTCMay 29, 14:40 UTC45m
2026-05-29 SWU1985 BRI → OMO May 29, 12:00 UTCMay 29, 12:35 UTC35m
2026-05-29 SWU1984 OMO → BRI May 29, 10:30 UTCMay 29, 11:05 UTC35m
2026-05-29 SWU1974 FCO → OMO May 29, 08:15 UTCMay 29, 09:05 UTC50m
2026-05-29 SWU1918 CRV → FCO May 29, 05:50 UTCMay 29, 06:55 UTC1h 5m
2026-05-28 SWU1919 FCO → CRV May 28, 16:20 UTCMay 28, 17:15 UTC55m
2026-05-28 SWU1918 CRV → FCO May 28, 05:40 UTCMay 28, 06:45 UTC1h 5m
2026-05-27 SWU1919 FCO → CRV May 27, 15:55 UTCMay 27, 16:50 UTC55m
2026-05-27 SWU1918 CRV → FCO May 27, 05:35 UTCMay 27, 06:34 UTC1h 0m
2026-05-26 SWU1919 FCO → CRV May 26, 16:15 UTCMay 26, 17:09 UTC55m
2026-05-26 SWU1918 CRV → FCO May 26, 06:39 UTCMay 26, 07:40 UTC1h 0m
2026-05-25 SWU1919 FCO → CRV May 25, 16:35 UTCMay 25, 17:30 UTC55m
2026-05-25 SWU1975 OMO → FCO May 25, 14:10 UTCMay 25, 15:00 UTC50m
2026-05-25 SWU1985 BRI → OMO May 25, 12:35 UTCMay 25, 13:05 UTC30m
2026-05-25 SWU1984 OMO → BRI May 25, 10:35 UTCMay 25, 11:05 UTC30m
2026-05-25 SWU1974 FCO → OMO May 25, 08:15 UTCMay 25, 09:15 UTC1h 0m
2026-05-25 SWU1918 CRV → FCO May 25, 05:40 UTCMay 25, 06:40 UTC1h 0m
2026-05-24 SWU1919 FCO → CRV May 24, 15:45 UTCMay 24, 16:45 UTC1h 0m
2026-05-24 SWU1918 CRV → FCO May 24, 05:40 UTCMay 24, 06:40 UTC1h 0m
2026-05-23 SWU1919 FCO → CRV May 23, 15:45 UTCMay 23, 16:45 UTC1h 0m
2026-05-23 SWU1918 CRV → FCO May 23, 05:30 UTCMay 23, 06:35 UTC1h 5m
2026-05-22 SWU1919 FCO → CRV May 22, 16:15 UTCMay 22, 17:10 UTC55m
2026-05-22 SWU1975 - May 22, 14:20 UTCMay 22, 15:10 UTC50m
2026-05-22 SWU1985 BRI → OMO May 22, 12:35 UTCMay 22, 13:05 UTC30m
2026-05-22 SWU1984 OMO → BRI May 22, 11:10 UTCMay 22, 11:40 UTC30m
2026-05-22 SWU1974 FCO → OMO May 22, 08:55 UTCMay 22, 09:45 UTC50m
2026-05-22 SWU1918 CRV → FCO May 22, 05:45 UTCMay 22, 06:45 UTC1h 0m
2026-05-21 SWU1919 FCO → CRV May 21, 15:40 UTCMay 21, 16:35 UTC55m
2026-05-21 SWU1918 CRV → FCO May 21, 05:25 UTCMay 21, 06:30 UTC1h 5m
2026-05-20 SWU1919 FCO → CRV May 20, 15:55 UTCMay 20, 16:45 UTC50m
2026-05-20 SWU1918 CRV → FCO May 20, 05:45 UTCMay 20, 06:50 UTC1h 5m
2026-05-19 SWU1919 FCO → CRV May 19, 15:55 UTCMay 19, 16:50 UTC55m
2026-05-19 SWU1918 CRV → FCO May 19, 05:30 UTCMay 19, 06:35 UTC1h 5m
2026-05-18 SWU1919 FCO → CRV May 18, 16:00 UTCMay 18, 16:55 UTC55m
2026-05-18 SWU1918 CRV → FCO May 18, 05:50 UTCMay 18, 06:55 UTC1h 5m
2026-05-17 SWU1919 FCO → CRV May 17, 15:50 UTCMay 17, 16:45 UTC55m
2026-05-17 SWU1918 CRV → FCO May 17, 05:30 UTCMay 17, 06:35 UTC1h 5m
2026-05-16 SWU1919 FCO → CRV May 16, 15:50 UTCMay 16, 16:40 UTC50m
2026-05-16 SWU1918 CRV → FCO May 16, 05:46 UTCMay 16, 07:01 UTC1h 15m
2026-05-15 SWU1919 FCO → CRV May 15, 16:30 UTCMay 15, 17:20 UTC50m
2026-05-15 SWU1918 CRV → FCO May 15, 05:55 UTCMay 15, 07:00 UTC1h 5m
2026-05-14 SWU1919 FCO → CRV May 14, 15:45 UTCMay 14, 16:40 UTC55m
2026-05-14 SWU1918 CRV → FCO May 14, 06:10 UTCMay 14, 07:15 UTC1h 5m
2026-05-13 SWU1919 FCO → CRV May 13, 15:55 UTCMay 13, 16:45 UTC50m
2026-05-13 SWU1918 CRV → FCO May 13, 05:35 UTCMay 13, 06:45 UTC1h 10m
2026-05-12 SWU1919 FCO → CRV May 12, 15:45 UTCMay 12, 16:35 UTC50m
2026-05-12 SWU601 - May 12, 13:51 UTCMay 12, 14:50 UTC1h 0m
2026-05-11 SWU1957 KSF → BZO May 11, 15:20 UTCMay 11, 17:00 UTC1h 41m
2026-05-11 SWU1956 BZO → KSF May 11, 12:55 UTCMay 11, 14:05 UTC1h 10m

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

Mode-S 4D2320 frequently asked

What is Mode-S code 4D2320?
4D2320 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-BEL.
Where is Mode-S 4D2320 registered?
Mode-S code 4D2320 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2320 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2320, octal 23221440, decimal 5,055,264.
What flights does 4D2320 operate?
Mode-S 4D2320 has broadcast 20 distinct callsigns, including SWU1919, SWU1918, SWU1985, SWU1984, SWU1975.