Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4D239A

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-CXD · BOEING 737-800

Hex
4D239A
Octal
23221632
Decimal
5,055,386
Country
MT
Tail
9H-CXD
Type
B738
No current signal · last broadcast 1h ago
Flights observed
306
Distinct callsigns
20
Country
MT
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4D239A.

Country allocation

The ICAO 24-bit address 4D239A 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
SEJ151 Spicejet 31 2026-06-01
SEJ199 Spicejet 26 2026-06-02
SEJ630 Spicejet 23 2026-05-29
SEJ152 Spicejet 22 2026-06-02
SEJ682 Spicejet 20 2026-05-29
SEJ681 Spicejet 18 2026-05-29
SEJ631 Spicejet 17 2026-05-29
SEJ683 Spicejet 15 2026-05-29
SEJ200 Spicejet 15 2026-06-02
SEJ674 Spicejet 14 2026-04-21
SEJ684 Spicejet 12 2026-05-28
SEJ623 Spicejet 12 2026-06-01
SEJ905 Spicejet 9 2026-06-02
SEJ672 Spicejet 9 2026-04-21
SEJ622 Spicejet 9 2026-06-01
SEJ906 Spicejet 7 2026-06-02
SEJ150 Spicejet 7 2026-05-30
SEJ903 Spicejet 6 2026-06-02
SEJ710 Spicejet 4 2026-05-23
SEJ151T Spicejet 4 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 SEJ906 CCU → DEL Jun 2, 21:05 UTCJun 2, 22:30 UTC1h 25m
2026-06-02 SEJ905 DEL → CCU Jun 2, 18:20 UTCJun 2, 19:45 UTC1h 25m
2026-06-02 SEJ200 BLR → DEL Jun 2, 14:35 UTCJun 2, 17:00 UTC2h 25m
2026-06-02 SEJ199 IXB → DEL Jun 2, 11:50 UTCJun 2, 12:05 UTC15m
2026-06-02 SEJ199 IXB → DEL Jun 2, 09:40 UTCJun 2, 10:15 UTC35m
2026-06-02 SEJ199 IXB → DEL Jun 2, 06:30 UTCJun 2, 08:05 UTC1h 35m
2026-06-02 SEJ903 DEL → IXB Jun 2, 03:30 UTCJun 2, 04:50 UTC1h 20m
2026-06-02 SEJ152 DEL → BLR Jun 2, 00:35 UTCJun 2, 01:25 UTC50m
2026-06-01 SEJ152 DEL → BLR Jun 1, 23:05 UTCJun 1, 23:15 UTC10m
2026-06-01 SEJ151 DEL → BLR Jun 1, 21:30 UTCJun 1, 21:40 UTC10m
2026-06-01 SEJ151 DEL → BLR Jun 1, 19:20 UTCJun 1, 19:55 UTC35m
2026-06-01 SEJ980 DEL → SXR Jun 1, 09:00 UTCJun 1, 12:25 UTC3h 25m
2026-06-01 SEJ623 IXB → DEL Jun 1, 05:45 UTCJun 1, 07:40 UTC1h 55m
2026-06-01 SEJ622 DEL → IXB Jun 1, 03:05 UTCJun 1, 04:25 UTC1h 20m
2026-05-31 SEJ200 BLR → DEL May 31, 22:20 UTCJun 1, 00:35 UTC2h 15m
2026-05-31 SEJ209 DEL → BLR May 31, 18:30 UTCMay 31, 20:50 UTC2h 20m
2026-05-31 SEJ906 CCU → DEL May 31, 15:15 UTCMay 31, 17:10 UTC1h 55m
2026-05-31 SEJ905 DEL → CCU May 31, 13:00 UTCMay 31, 13:25 UTC25m
2026-05-31 SEJ905 DEL → CCU May 31, 10:15 UTCMay 31, 11:40 UTC1h 25m
2026-05-30 SEJ152 DEL → BLR May 30, 19:45 UTCMay 30, 22:05 UTC2h 20m
2026-05-30 SEJ151 DEL → BLR May 30, 17:45 UTCMay 30, 18:00 UTC15m
2026-05-30 SEJ151 DEL → BLR May 30, 15:45 UTCMay 30, 16:15 UTC30m
2026-05-30 SEJ151 DEL → BLR May 30, 12:25 UTCMay 30, 14:00 UTC1h 35m
2026-05-30 SEJ150 DEL → IXB May 30, 09:35 UTCMay 30, 10:55 UTC1h 20m
2026-05-30 SEJ623 IXB → DEL May 30, 06:35 UTCMay 30, 08:15 UTC1h 40m
2026-05-30 SEJ622 DEL → IXB May 30, 03:55 UTCMay 30, 05:10 UTC1h 15m
2026-05-29 SEJ631 BOM → DEL May 29, 19:05 UTCMay 29, 21:05 UTC2h 0m
2026-05-29 SEJ682 PAT → BOM May 29, 17:25 UTCMay 29, 17:40 UTC15m
2026-05-29 SEJ682 PAT → BOM May 29, 15:25 UTCMay 29, 15:55 UTC31m
2026-05-29 SEJ681 BOM → PAT May 29, 13:35 UTCMay 29, 14:10 UTC35m
2026-05-29 SEJ683 BOM → JAI May 29, 06:30 UTCMay 29, 07:35 UTC1h 5m
2026-05-29 SEJ630 DEL → BOM May 29, 02:25 UTCMay 29, 04:15 UTC1h 50m
2026-05-28 SEJ631 BOM → DEL May 28, 21:40 UTCMay 28, 23:25 UTC1h 45m
2026-05-28 SEJ682 PAT → BOM May 28, 19:55 UTCMay 28, 20:15 UTC20m
2026-05-28 SEJ682 PAT → BOM May 28, 18:05 UTCMay 28, 18:40 UTC35m
2026-05-28 SEJ681 BOM → PAT May 28, 16:25 UTCMay 28, 16:55 UTC30m
2026-05-28 SEJ681 BOM → PAT May 28, 15:05 UTCMay 28, 15:15 UTC10m
2026-05-28 SEJ684 DEL → BOM May 28, 13:00 UTCMay 28, 13:15 UTC15m
2026-05-28 SEJ683 BOM → JAI May 28, 08:20 UTCMay 28, 09:30 UTC1h 10m
2026-05-28 SEJ630 DEL → BOM May 28, 03:20 UTCMay 28, 05:10 UTC1h 50m
2026-05-28 SEJ152 DEL → BLR May 28, 01:00 UTCMay 28, 01:45 UTC45m
2026-05-27 SEJ152 DEL → BLR May 27, 23:20 UTCMay 27, 23:30 UTC10m
2026-05-27 SEJ151 DEL → BLR May 27, 21:25 UTCMay 27, 21:35 UTC10m
2026-05-27 SEJ151 DEL → BLR May 27, 19:25 UTCMay 27, 20:00 UTC35m
2026-05-27 SEJ200 BLR → DEL May 27, 13:05 UTCMay 27, 13:50 UTC45m
2026-05-27 SEJ200 BLR → DEL May 27, 11:20 UTCMay 27, 11:35 UTC15m
2026-05-27 SEJ199 IXB → DEL May 27, 08:55 UTCMay 27, 09:10 UTC15m
2026-05-27 SEJ199 IXB → DEL May 27, 06:55 UTCMay 27, 07:25 UTC30m
2026-05-27 SEJ199 IXB → DEL May 27, 03:14 UTCMay 27, 04:55 UTC1h 40m
2026-05-27 SEJ903 DEL → IXB May 27, 00:34 UTCMay 27, 01:49 UTC1h 15m

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

Mode-S 4D239A frequently asked

What is Mode-S code 4D239A?
4D239A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-CXD.
Where is Mode-S 4D239A registered?
Mode-S code 4D239A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D239A broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D239A, octal 23221632, decimal 5,055,386.
What flights does 4D239A operate?
Mode-S 4D239A has broadcast 20 distinct callsigns, including SEJ151, SEJ199, SEJ630, SEJ152, SEJ682.