Apparatus

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sensors Mode-S transponder

4D2029

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2029
Octal
23220051
Decimal
5,054,505
Country
MT
Tail
9H-MATI
Type
DH8D
No current signal · last broadcast 7h ago
Flights observed
104
Distinct callsigns
20
Country
MT
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4D2029.

Country allocation

The ICAO 24-bit address 4D2029 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 5 2026-06-06
SWU1918 Swiss European Air Lines 5 2026-06-07
SWU1953 Swiss European Air Lines 4 2026-05-18
SWU1952 Swiss European Air Lines 4 2026-05-18
SWU1951 Swiss European Air Lines 4 2026-06-10
SWU1950 Swiss European Air Lines 4 2026-06-10
SWU2108 - 3 2026-05-01
SWU1998 Swiss European Air Lines 3 2026-06-10
SWU1997 Swiss European Air Lines 3 2026-06-10
SWU1964 Swiss European Air Lines 3 2026-06-11
SWU1963 Swiss European Air Lines 3 2026-06-11
SWU1955 Swiss European Air Lines 3 2026-06-11
SWU1954 Swiss European Air Lines 3 2026-06-11
SWU2302 Swiss European Air Lines 2 2026-05-10
SWU2301 Swiss European Air Lines 2 2026-05-09
SWU2101 - 2 2026-05-09
SWU1993 Swiss European Air Lines 2 2026-06-06
SWU1992 Swiss European Air Lines 2 2026-06-06
SWU1990 Swiss European Air Lines 2 2026-06-07
SWU1981 Swiss European Air Lines 2 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-11 SWU1955 HAM → BZO Jun 11, 16:15 UTCJun 11, 17:45 UTC1h 30m
2026-06-11 SWU1954 BZO → HAM Jun 11, 13:10 UTCJun 11, 14:50 UTC1h 40m
2026-06-11 SWU1964 ANR → BZO Jun 11, 10:35 UTCJun 11, 12:00 UTC1h 25m
2026-06-11 SWU1963 BZO → ANR Jun 11, 08:00 UTCJun 11, 09:35 UTC1h 35m
2026-06-10 SWU1951 BER → BZO Jun 10, 17:25 UTCJun 10, 19:10 UTC1h 45m
2026-06-10 SWU1950 BZO → BER Jun 10, 15:15 UTCJun 10, 16:40 UTC1h 25m
2026-06-10 SWU1998 DRS → BZO Jun 10, 09:35 UTCJun 10, 11:55 UTC2h 20m
2026-06-10 SWU1997 BZO → DRS Jun 10, 06:40 UTCJun 10, 07:40 UTC1h 0m
2026-06-09 SWU1955 HAM → BZO Jun 9, 16:45 UTCJun 9, 18:05 UTC1h 20m
2026-06-09 SWU1954 BZO → HAM Jun 9, 13:05 UTCJun 9, 14:35 UTC1h 30m
2026-06-09 SWU2352 LUX → BZO Jun 9, 10:45 UTCJun 9, 11:45 UTC1h 0m
2026-06-09 SWU2351 BZO → LUX Jun 9, 08:25 UTCJun 9, 09:40 UTC1h 15m
2026-06-08 SWU607 - Jun 8, 18:30 UTCJun 8, 19:05 UTC35m
2026-06-07 SWU1990 FCO → KLU Jun 7, 10:55 UTCJun 7, 12:00 UTC1h 5m
2026-06-07 SWU1918 CRV → FCO Jun 7, 05:45 UTCJun 7, 07:00 UTC1h 15m
2026-06-06 SWU1919 FCO → CRV Jun 6, 16:45 UTCJun 6, 17:44 UTC1h 0m
2026-06-06 SWU1993 SZG → FCO Jun 6, 10:34 UTCJun 6, 11:55 UTC1h 20m
2026-06-06 SWU1992 FCO → SZG Jun 6, 08:30 UTCJun 6, 09:55 UTC1h 25m
2026-06-06 SWU1918 CRV → FCO Jun 6, 06:20 UTCJun 6, 07:25 UTC1h 5m
2026-06-05 SWU1919 FCO → CRV Jun 5, 16:05 UTCJun 5, 17:05 UTC1h 0m
2026-06-05 SWU1975 OMO → FCO Jun 5, 13:35 UTCJun 5, 14:30 UTC55m
2026-06-05 SWU1985 BRI → OMO Jun 5, 11:50 UTCJun 5, 12:15 UTC25m
2026-06-05 SWU1984 OMO → BRI Jun 5, 10:00 UTCJun 5, 10:35 UTC35m
2026-06-05 SWU1974 FCO → OMO Jun 5, 08:10 UTCJun 5, 09:10 UTC1h 0m
2026-06-05 SWU1918 CRV → FCO Jun 5, 05:30 UTCJun 5, 06:35 UTC1h 5m
2026-06-04 SWU1919 FCO → CRV Jun 4, 15:45 UTCJun 4, 16:40 UTC55m
2026-06-04 SWU1991 KLU → FCO Jun 4, 10:55 UTCJun 4, 12:00 UTC1h 5m
2026-06-04 SWU1990 FCO → KLU Jun 4, 08:35 UTCJun 4, 09:45 UTC1h 10m
2026-06-04 SWU1918 CRV → FCO Jun 4, 05:55 UTCJun 4, 07:05 UTC1h 10m
2026-06-03 SWU1919 FCO → CRV Jun 3, 15:45 UTCJun 3, 16:40 UTC55m
2026-06-03 SWU1993 SZG → FCO Jun 3, 10:50 UTCJun 3, 12:10 UTC1h 20m
2026-06-03 SWU1992 FCO → SZG Jun 3, 08:25 UTCJun 3, 09:55 UTC1h 30m
2026-06-03 SWU1918 CRV → FCO Jun 3, 05:55 UTCJun 3, 07:00 UTC1h 5m
2026-06-02 SWU1919 FCO → CRV Jun 2, 15:50 UTCJun 2, 16:50 UTC1h 0m
2026-06-02 SWU602 - Jun 2, 11:35 UTCJun 2, 12:40 UTC1h 5m
2026-05-31 SWU1969 IBZ → BZO May 31, 16:40 UTCMay 31, 18:45 UTC2h 5m
2026-05-31 SWU1968 - May 31, 13:10 UTCMay 31, 15:15 UTC2h 5m
2026-05-31 SWU1909 CTA → BZO May 31, 09:05 UTCMay 31, 10:55 UTC1h 50m
2026-05-30 SWU1911 CAG → BZO May 30, 14:35 UTCMay 30, 16:05 UTC1h 30m
2026-05-30 SWU2383 BRN → CAG May 30, 11:35 UTCMay 30, 13:05 UTC1h 30m
2026-05-30 SWU2382 CAG → BRN May 30, 09:00 UTCMay 30, 10:40 UTC1h 40m
2026-05-30 SWU1910 BZO → CAG May 30, 06:30 UTCMay 30, 07:50 UTC1h 20m
2026-05-29 SWU1941 CFU → BZO May 29, 18:15 UTCMay 29, 19:55 UTC1h 40m
2026-05-29 SWU1940 - May 29, 15:20 UTCMay 29, 17:00 UTC1h 40m
2026-05-29 SWU1907 OLB → BZO May 29, 12:45 UTCMay 29, 13:55 UTC1h 10m
2026-05-29 SWU2381 BRN → OLB May 29, 10:05 UTCMay 29, 11:25 UTC1h 20m
2026-05-29 SWU2380 - May 29, 07:40 UTCMay 29, 09:05 UTC1h 25m
2026-05-29 SWU1906 BZO → OLB May 29, 05:30 UTCMay 29, 06:30 UTC1h 0m
2026-05-28 SWU1969 - May 28, 15:45 UTCMay 28, 18:00 UTC2h 15m
2026-05-28 SWU1968 - May 28, 13:00 UTCMay 28, 14:55 UTC1h 55m

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

Mode-S 4D2029 frequently asked

What is Mode-S code 4D2029?
4D2029 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-MATI.
Where is Mode-S 4D2029 registered?
Mode-S code 4D2029 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2029 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2029, octal 23220051, decimal 5,054,505.
What flights does 4D2029 operate?
Mode-S 4D2029 has broadcast 20 distinct callsigns, including SWU1919, SWU1918, SWU1953, SWU1952, SWU1951.