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
Broadcasting now · callsign SWU1902 · 25,000 ft
Flights observed
167
Distinct callsigns
20
Country
MT
Last broadcast
14h ago

Current position

4D2320 is currently broadcasting. Map zoomed to live position.

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
SWU1953 - 5 2026-07-13
SWU1952 - 5 2026-07-13
SWU1933 Swiss European Air Lines 5 2026-07-12
SWU1932 - 5 2026-07-12
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
SWU1903 - 4 2026-07-09
SWU601 Swiss European Air Lines 3 2026-06-10
SWU2302 Swiss European Air Lines 3 2026-06-09
SWU1981 - 3 2026-07-13
SWU1980 - 3 2026-07-13
SWU1955 Swiss European Air Lines 3 2026-06-18
SWU1954 Swiss European Air Lines 3 2026-06-18
SWU1902 - 3 2026-07-09
SWU2306 Swiss European Air Lines 2 2026-06-08
SWU2301 Swiss European Air Lines 2 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-12 SWU1910 - Jul 12, 14:55 UTCJul 12, 16:20 UTC1h 25m
2026-07-12 SWU1933 LGW → BZO Jul 12, 12:01 UTCJul 12, 13:55 UTC1h 55m
2026-07-12 SWU1932 - Jul 12, 08:45 UTCJul 12, 10:50 UTC2h 5m
2026-07-11 SWU1953 - Jul 11, 17:55 UTCJul 11, 19:05 UTC1h 10m
2026-07-11 SWU1952 - Jul 11, 15:40 UTCJul 11, 17:10 UTC1h 30m
2026-07-11 SWU1905 - Jul 11, 12:30 UTCJul 11, 13:55 UTC1h 25m
2026-07-11 SWU1904 - Jul 11, 09:55 UTCJul 11, 11:25 UTC1h 30m
2026-07-11 SWU1907 - Jul 11, 07:40 UTCJul 11, 08:35 UTC55m
2026-07-11 SWU1906 - Jul 11, 05:20 UTCJul 11, 06:30 UTC1h 10m
2026-07-10 SWU1937 SKG → BZO Jul 10, 18:45 UTCJul 10, 20:55 UTC2h 10m
2026-07-10 SWU1936 - Jul 10, 15:50 UTCJul 10, 17:40 UTC1h 50m
2026-07-10 SWU1957 - Jul 10, 13:20 UTCJul 10, 14:40 UTC1h 20m
2026-07-10 SWU1956 BZO → KSF Jul 10, 11:10 UTCJul 10, 12:25 UTC1h 15m
2026-07-10 SWU1951 BER → BZO Jul 10, 08:45 UTCJul 10, 10:05 UTC1h 20m
2026-07-10 SWU1950 - Jul 10, 06:15 UTCJul 10, 07:45 UTC1h 30m
2026-07-09 SWU1903 - Jul 9, 15:45 UTCJul 9, 17:20 UTC1h 35m
2026-07-09 SWU1902 - Jul 9, 13:00 UTCJul 9, 14:40 UTC1h 40m
2026-07-09 SWU1953 - Jul 9, 11:00 UTCJul 9, 12:10 UTC1h 10m
2026-07-09 SWU1952 - Jul 9, 08:15 UTCJul 9, 09:45 UTC1h 30m
2026-07-08 SWU1933 LGW → BZO Jul 8, 15:50 UTCJul 8, 17:40 UTC1h 50m
2026-07-08 SWU1932 - Jul 8, 12:20 UTCJul 8, 14:45 UTC2h 25m
2026-07-07 SWU1903 - Jul 7, 13:50 UTCJul 7, 15:45 UTC1h 55m
2026-07-07 SWU1903 - Jul 7, 09:20 UTCJul 7, 09:40 UTC20m
2026-07-07 SWU1902 - Jul 7, 06:40 UTCJul 7, 08:15 UTC1h 35m
2026-06-19 SWU1941 CFU → BZO Jun 19, 17:44 UTCJun 19, 19:19 UTC1h 35m
2026-06-19 SWU1940 BZO → CFU Jun 19, 14:39 UTCJun 19, 16:14 UTC1h 35m
2026-06-19 SWU1971 BWK → BZO Jun 19, 12:09 UTCJun 19, 13:20 UTC1h 10m
2026-06-19 SWU2391 - Jun 19, 10:19 UTCJun 19, 11:24 UTC1h 5m
2026-06-19 SWU2390 BWK → BTS Jun 19, 08:09 UTCJun 19, 09:24 UTC1h 15m
2026-06-19 SWU1970 BZO → BWK Jun 19, 06:10 UTCJun 19, 07:04 UTC55m
2026-06-18 SWU1955 HAM → BZO Jun 18, 16:25 UTCJun 18, 17:55 UTC1h 30m
2026-06-18 SWU1954 BZO → HAM Jun 18, 13:40 UTCJun 18, 15:35 UTC1h 55m
2026-06-17 SWU1933 LGW → BZO Jun 17, 15:25 UTCJun 17, 17:10 UTC1h 45m
2026-06-17 SWU1932 BZO → LGW Jun 17, 11:45 UTCJun 17, 14:10 UTC2h 25m
2026-06-17 SWU1998 DRS → BZO Jun 17, 09:00 UTCJun 17, 10:05 UTC1h 5m
2026-06-17 SWU1997 BZO → DRS Jun 17, 06:50 UTCJun 17, 08:05 UTC1h 15m
2026-06-12 SWU1951 BER → BZO Jun 12, 09:00 UTCJun 12, 10:25 UTC1h 25m
2026-06-12 SWU1950 BZO → BER Jun 12, 06:10 UTCJun 12, 08:00 UTC1h 50m
2026-06-10 SWU601 BGY → BZO Jun 10, 15:50 UTCJun 10, 16:05 UTC15m
2026-06-10 SWU1905 BDS → BZO Jun 10, 09:30 UTCJun 10, 11:45 UTC2h 15m
2026-06-10 SWU1904 BZO → BDS Jun 10, 07:00 UTCJun 10, 08:30 UTC1h 30m
2026-06-09 SWU1969 IBZ → BZO Jun 9, 17:55 UTCJun 9, 20:15 UTC2h 20m
2026-06-09 SWU1968 BZO → IBZ Jun 9, 13:40 UTCJun 9, 15:50 UTC2h 10m
2026-06-09 SWU2104 TLS → BZO Jun 9, 10:15 UTCJun 9, 11:05 UTC50m
2026-06-09 SWU2302 HAJ → MXP Jun 9, 07:35 UTCJun 9, 08:40 UTC1h 5m

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?
Yes. Mode-S 4D2320 is currently airborne.
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, SWU1953, SWU1952, SWU1933.