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 Jul 26, 21:25 UTC
Flights observed
212
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 21:25 UTC

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 27 2026-06-01
SWU1918 Swiss European Air Lines 26 2026-06-02
SWU1933 Swiss European Air Lines 10 2026-07-26
SWU1932 Swiss European Air Lines 10 2026-07-26
SWU1953 - 7 2026-07-23
SWU1952 Swiss European Air Lines 7 2026-07-23
SWU1903 Swiss European Air Lines 7 2026-07-25
SWU1902 Swiss European Air Lines 6 2026-07-25
SWU601 - 5 2026-07-18
SWU1955 Swiss European Air Lines 5 2026-07-23
SWU1954 Swiss European Air Lines 5 2026-07-23
SWU1985 Swiss European Air Lines 4 2026-06-01
SWU1984 Swiss European Air Lines 4 2026-06-01
SWU1975 Swiss European Air Lines 4 2026-06-01
SWU1974 Swiss European Air Lines 4 2026-06-01
SWU2302 Swiss European Air Lines 3 2026-06-09
SWU1998 Swiss European Air Lines 3 2026-07-26
SWU1997 Swiss European Air Lines 3 2026-07-26
SWU1981 - 3 2026-07-13
SWU1980 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWU1998 DRS → BZO Jul 26, 20:15 UTCJul 26, 21:25 UTC1h 10m
2026-07-26 SWU1997 BZO → DRS Jul 26, 18:30 UTCJul 26, 19:35 UTC1h 5m
2026-07-26 SWU1933 LGW → BZO Jul 26, 12:40 UTCJul 26, 14:30 UTC1h 50m
2026-07-26 SWU1932 BZO → LGW Jul 26, 09:00 UTCJul 26, 11:15 UTC2h 15m
2026-07-25 SWU1933 LGW → BZO Jul 25, 15:55 UTCJul 25, 17:40 UTC1h 45m
2026-07-25 SWU1932 BZO → LGW Jul 25, 12:35 UTCJul 25, 14:50 UTC2h 15m
2026-07-25 SWU1903 SUF → BZO Jul 25, 09:35 UTCJul 25, 11:20 UTC1h 45m
2026-07-25 SWU1902 BZO → SUF Jul 25, 06:35 UTCJul 25, 08:05 UTC1h 30m
2026-07-24 SWU1957 - Jul 24, 13:20 UTCJul 24, 14:30 UTC1h 10m
2026-07-24 SWU1956 BZO → KSF Jul 24, 11:05 UTCJul 24, 12:20 UTC1h 15m
2026-07-24 SWU1951 BER → BZO Jul 24, 09:15 UTCJul 24, 10:25 UTC1h 10m
2026-07-24 SWU1950 BZO → BER Jul 24, 06:50 UTCJul 24, 08:25 UTC1h 35m
2026-07-23 SWU1955 HAM → BZO Jul 23, 16:10 UTCJul 23, 17:40 UTC1h 30m
2026-07-23 SWU1954 BZO → HAM Jul 23, 13:40 UTCJul 23, 15:25 UTC1h 45m
2026-07-23 SWU1953 - Jul 23, 10:45 UTCJul 23, 12:10 UTC1h 25m
2026-07-23 SWU1952 BZO → DUS Jul 23, 08:15 UTCJul 23, 09:45 UTC1h 30m
2026-07-22 SWU1933 LGW → BZO Jul 22, 15:50 UTCJul 22, 17:45 UTC1h 55m
2026-07-22 SWU1932 - Jul 22, 12:00 UTCJul 22, 14:25 UTC2h 25m
2026-07-21 SWU1907 OLB → BZO Jul 21, 14:55 UTCJul 21, 16:10 UTC1h 15m
2026-07-21 SWU1906 BZO → OLB Jul 21, 12:25 UTCJul 21, 13:50 UTC1h 25m
2026-07-19 SWU1911 - Jul 19, 18:20 UTCJul 19, 19:30 UTC1h 10m
2026-07-19 SWU1910 - Jul 19, 15:50 UTCJul 19, 17:15 UTC1h 25m
2026-07-19 SWU1933 LGW → BZO Jul 19, 12:30 UTCJul 19, 14:25 UTC1h 55m
2026-07-19 SWU1932 - Jul 19, 09:00 UTCJul 19, 11:15 UTC2h 15m
2026-07-19 SWU602 BRN → BZO Jul 19, 07:15 UTCJul 19, 07:30 UTC15m
2026-07-18 SWU601 - Jul 18, 15:05 UTCJul 18, 18:10 UTC3h 5m
2026-07-17 SWU1911 - Jul 17, 21:55 UTCJul 17, 23:10 UTC1h 15m
2026-07-17 SWU1910 - Jul 17, 19:09 UTCJul 17, 20:29 UTC1h 20m
2026-07-17 SWU1955 HAM → BZO Jul 17, 16:10 UTCJul 17, 17:50 UTC1h 40m
2026-07-17 SWU1954 BZO → HAM Jul 17, 13:25 UTCJul 17, 14:55 UTC1h 30m
2026-07-17 SWU1971 BWK → BZO Jul 17, 10:55 UTCJul 17, 11:55 UTC1h 0m
2026-07-17 SWU2391 - Jul 17, 09:10 UTCJul 17, 09:55 UTC45m
2026-07-17 SWU2390 BWK → BTS Jul 17, 07:00 UTCJul 17, 08:10 UTC1h 10m
2026-07-17 SWU1970 BZO → BWK Jul 17, 05:15 UTCJul 17, 06:05 UTC50m
2026-07-16 SWU1903 - Jul 16, 16:15 UTCJul 16, 18:00 UTC1h 45m
2026-07-16 SWU1902 - Jul 16, 13:40 UTCJul 16, 15:14 UTC1h 35m
2026-07-16 SWU1953 - Jul 16, 10:50 UTCJul 16, 12:14 UTC1h 25m
2026-07-16 SWU1952 - Jul 16, 08:20 UTCJul 16, 09:50 UTC1h 30m
2026-07-15 SWU1933 LGW → BZO Jul 15, 15:50 UTCJul 15, 17:45 UTC1h 55m
2026-07-15 SWU1932 - Jul 15, 12:20 UTCJul 15, 14:35 UTC2h 15m
2026-07-15 SWU601 - Jul 15, 10:40 UTCJul 15, 10:55 UTC15m
2026-07-14 SWU1967 MAH → BZO Jul 14, 16:10 UTCJul 14, 18:10 UTC2h 0m
2026-07-14 SWU1966 BZO → MAH Jul 14, 12:40 UTCJul 14, 14:45 UTC2h 5m
2026-07-14 SWU1903 - Jul 14, 09:25 UTCJul 14, 11:05 UTC1h 40m
2026-07-14 SWU1902 - Jul 14, 06:45 UTCJul 14, 08:20 UTC1h 35m
2026-07-13 SWU1953 - Jul 13, 15:35 UTCJul 13, 16:45 UTC1h 10m
2026-07-13 SWU1952 - Jul 13, 13:05 UTCJul 13, 14:40 UTC1h 35m
2026-07-13 SWU1981 - Jul 13, 09:50 UTCJul 13, 11:15 UTC1h 25m
2026-07-13 SWU1980 - Jul 13, 07:30 UTCJul 13, 08:55 UTC1h 25m
2026-07-12 SWU1911 - Jul 12, 17:40 UTCJul 12, 19:15 UTC1h 35m

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 Jul 26, 21:25 UTC.
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, SWU1933, SWU1932, SWU1953.