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sensors Mode-S transponder

4D2329

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2329
Octal
23221451
Decimal
5,055,273
Country
MT
Tail
9H-EVA
Type
DH8D
No current signal · last broadcast Jul 26, 19:35 UTC
Flights observed
260
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 19:35 UTC

Last known position

Most recent position reported by Mode-S 4D2329.

Country allocation

The ICAO 24-bit address 4D2329 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 17 2026-05-07
SWU1918 Swiss European Air Lines 17 2026-05-08
SWU1989 - 11 2026-07-17
SWU1988 Swiss European Air Lines 11 2026-07-17
SWU1979 Swiss European Air Lines 11 2026-07-17
SWU1978 - 11 2026-07-17
SWU1953 - 8 2026-07-25
SWU1952 Swiss European Air Lines 8 2026-07-25
SWU1951 Swiss European Air Lines 8 2026-07-22
SWU2102 Swiss European Air Lines 7 2026-07-18
SWU1955 Swiss European Air Lines 7 2026-07-26
SWU1950 - 7 2026-07-22
SWU601 - 6 2026-07-06
SWU2302 Swiss European Air Lines 6 2026-07-18
SWU1954 Swiss European Air Lines 6 2026-07-26
SWU2301 Swiss European Air Lines 5 2026-07-07
SWU2101 - 5 2026-07-07
SWU1903 - 5 2026-07-23
SWU1902 Swiss European Air Lines 5 2026-07-23
SWU1907 Swiss European Air Lines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWU1955 HAM → BZO Jul 26, 18:05 UTCJul 26, 19:35 UTC1h 30m
2026-07-26 SWU1954 BZO → HAM Jul 26, 15:15 UTCJul 26, 16:55 UTC1h 40m
2026-07-26 SWU1909 CTA → BZO Jul 26, 08:55 UTCJul 26, 10:55 UTC2h 0m
2026-07-26 SWU1908 BZO → CTA Jul 26, 05:40 UTCJul 26, 07:35 UTC1h 56m
2026-07-25 SWU1953 - Jul 25, 17:55 UTCJul 25, 19:10 UTC1h 15m
2026-07-25 SWU1952 BZO → DUS Jul 25, 15:25 UTCJul 25, 16:45 UTC1h 20m
2026-07-25 SWU1905 - Jul 25, 12:30 UTCJul 25, 14:05 UTC1h 35m
2026-07-25 SWU1904 BZO → BDS Jul 25, 10:00 UTCJul 25, 11:25 UTC1h 25m
2026-07-25 SWU1907 OLB → BZO Jul 25, 07:45 UTCJul 25, 08:40 UTC55m
2026-07-25 SWU1906 BZO → OLB Jul 25, 05:15 UTCJul 25, 06:30 UTC1h 15m
2026-07-24 SWU1941 - Jul 24, 18:00 UTCJul 24, 19:45 UTC1h 45m
2026-07-24 SWU1940 - Jul 24, 14:55 UTCJul 24, 16:20 UTC1h 25m
2026-07-24 SWU1933 LGW → BZO Jul 24, 12:00 UTCJul 24, 13:50 UTC1h 50m
2026-07-24 SWU1932 BZO → LGW Jul 24, 07:40 UTCJul 24, 09:50 UTC2h 10m
2026-07-23 SWU1903 - Jul 23, 15:45 UTCJul 23, 17:30 UTC1h 45m
2026-07-23 SWU1902 BZO → SUF Jul 23, 13:15 UTCJul 23, 14:45 UTC1h 30m
2026-07-23 SWU1964 ANR → BZO Jul 23, 10:40 UTCJul 23, 11:55 UTC1h 15m
2026-07-23 SWU1963 - Jul 23, 08:05 UTCJul 23, 09:45 UTC1h 40m
2026-07-22 SWU1951 BER → BZO Jul 22, 14:55 UTCJul 22, 16:25 UTC1h 30m
2026-07-22 SWU1950 - Jul 22, 12:15 UTCJul 22, 13:50 UTC1h 35m
2026-07-21 SWU1955 HAM → BZO Jul 21, 16:15 UTCJul 21, 18:05 UTC1h 50m
2026-07-21 SWU1954 BZO → HAM Jul 21, 13:30 UTCJul 21, 15:25 UTC1h 55m
2026-07-21 SWU1903 - Jul 21, 10:10 UTCJul 21, 12:00 UTC1h 50m
2026-07-21 SWU1902 BZO → SUF Jul 21, 06:45 UTCJul 21, 08:15 UTC1h 30m
2026-07-20 SWU1953 - Jul 20, 15:25 UTCJul 20, 16:45 UTC1h 20m
2026-07-20 SWU1952 - Jul 20, 13:00 UTCJul 20, 14:30 UTC1h 30m
2026-07-20 SWU1981 - Jul 20, 10:05 UTCJul 20, 11:30 UTC1h 25m
2026-07-20 SWU1980 - Jul 20, 07:30 UTCJul 20, 08:55 UTC1h 25m
2026-07-19 SWU1998 - Jul 19, 20:20 UTCJul 19, 21:25 UTC1h 5m
2026-07-19 SWU1997 - Jul 19, 18:35 UTCJul 19, 19:45 UTC1h 10m
2026-07-19 SWU1951 BER → BZO Jul 19, 16:35 UTCJul 19, 17:55 UTC1h 20m
2026-07-19 SWU1950 - Jul 19, 14:10 UTCJul 19, 15:35 UTC1h 25m
2026-07-19 SWU2104 TLS → BZO Jul 19, 12:15 UTCJul 19, 12:40 UTC25m
2026-07-19 SWU2303 VIE → INN Jul 19, 10:30 UTCJul 19, 11:25 UTC55m
2026-07-18 SWU2302 HAJ → MXP Jul 18, 07:55 UTCJul 18, 09:20 UTC1h 25m
2026-07-18 SWU2102 BRN → BZO Jul 18, 04:45 UTCJul 18, 06:25 UTC1h 40m
2026-07-17 SWU1988 OMO → BGY Jul 17, 13:50 UTCJul 17, 15:05 UTC1h 15m
2026-07-17 SWU1979 PMO → OMO Jul 17, 11:50 UTCJul 17, 13:00 UTC1h 10m
2026-07-17 SWU1978 - Jul 17, 09:40 UTCJul 17, 10:55 UTC1h 15m
2026-07-17 SWU1989 - Jul 17, 07:44 UTCJul 17, 08:40 UTC55m
2026-07-13 SWU1988 OMO → BGY Jul 13, 14:15 UTCJul 13, 15:20 UTC1h 5m
2026-07-13 SWU1979 PMO → OMO Jul 13, 12:05 UTCJul 13, 13:15 UTC1h 10m
2026-07-13 SWU1978 - Jul 13, 09:50 UTCJul 13, 10:50 UTC1h 0m
2026-07-13 SWU1989 - Jul 13, 07:50 UTCJul 13, 08:50 UTC1h 0m
2026-07-10 SWU1988 OMO → BGY Jul 10, 13:50 UTCJul 10, 15:00 UTC1h 10m
2026-07-10 SWU1979 PMO → OMO Jul 10, 11:45 UTCJul 10, 12:55 UTC1h 10m
2026-07-10 SWU1978 - Jul 10, 09:25 UTCJul 10, 10:35 UTC1h 10m
2026-07-10 SWU1989 - Jul 10, 07:25 UTCJul 10, 08:25 UTC1h 0m
2026-07-08 SWU2102 BRN → BZO Jul 8, 18:15 UTCJul 8, 18:35 UTC20m
2026-07-08 SWU2302 HAJ → MXP Jul 8, 16:25 UTCJul 8, 17:30 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-EVA page for operator, model, and routing details .

Mode-S 4D2329 frequently asked

What is Mode-S code 4D2329?
4D2329 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-EVA.
Where is Mode-S 4D2329 registered?
Mode-S code 4D2329 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2329 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2329, octal 23221451, decimal 5,055,273.
What flights does 4D2329 operate?
Mode-S 4D2329 has broadcast 20 distinct callsigns, including SWU1919, SWU1918, SWU1989, SWU1988, SWU1979.