Apparatus

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sensors Mode-S transponder

4D239C

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D239C
Octal
23221634
Decimal
5,055,388
Country
MT
Tail
9H-CXF
Type
B738
No current signal · last broadcast 2h ago
Flights observed
262
Distinct callsigns
20
Country
MT
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4D239C.

Country allocation

The ICAO 24-bit address 4D239C 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
SEJ681 Spicejet 32 2026-05-27
SEJ630 Spicejet 27 2026-05-27
SEJ682 Spicejet 25 2026-05-27
SEJ631 Spicejet 23 2026-05-27
SEJ199 Spicejet 23 2026-05-07
SEJ151 Spicejet 15 2026-05-29
SEJ683 Spicejet 14 2026-05-26
SEJ200 Spicejet 13 2026-05-07
SEJ674 Spicejet 12 2026-04-22
SEJ684 Spicejet 10 2026-05-26
SEJ903 Spicejet 9 2026-05-07
SEJ672 Spicejet 8 2026-04-22
SEJ152 Spicejet 8 2026-05-29
SEJ902 Spicejet 7 2026-05-07
SEJ623 Spicejet 5 2026-05-29
SEJ806 Spicejet 4 2026-04-19
SEJ622 Spicejet 4 2026-05-29
SEJ150 Spicejet 3 2026-05-29
SEJ647 Spicejet 2 2026-04-20
SEJ160 Spicejet 2 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SEJ9160 DEL → IXJ May 30, 05:25 UTCMay 30, 06:15 UTC50m
2026-05-30 SEJ160 DEL → IXJ May 30, 02:25 UTCMay 30, 03:40 UTC1h 15m
2026-05-29 SEJ152 DEL → BLR May 29, 22:40 UTCMay 29, 23:30 UTC50m
2026-05-29 SEJ152 DEL → BLR May 29, 21:05 UTCMay 29, 21:20 UTC15m
2026-05-29 SEJ151 DEL → BLR May 29, 19:15 UTCMay 29, 19:25 UTC10m
2026-05-29 SEJ151 DEL → BLR May 29, 17:10 UTCMay 29, 17:50 UTC40m
2026-05-29 SEJ151 DEL → BLR May 29, 12:10 UTCMay 29, 14:10 UTC2h 0m
2026-05-29 SEJ150 DEL → IXB May 29, 09:15 UTCMay 29, 10:35 UTC1h 20m
2026-05-29 SEJ623 IXB → DEL May 29, 06:00 UTCMay 29, 07:55 UTC1h 55m
2026-05-29 SEJ622 DEL → IXB May 29, 03:00 UTCMay 29, 04:30 UTC1h 30m
2026-05-28 SEJ152 DEL → BLR May 28, 22:35 UTCMay 29, 01:00 UTC2h 25m
2026-05-28 SEJ151 DEL → BLR May 28, 21:00 UTCMay 28, 21:10 UTC10m
2026-05-28 SEJ151 DEL → BLR May 28, 18:55 UTCMay 28, 19:35 UTC40m
2026-05-28 SEJ151 DEL → BLR May 28, 15:10 UTCMay 28, 17:15 UTC2h 5m
2026-05-28 SEJ150 DEL → IXB May 28, 12:15 UTCMay 28, 13:35 UTC1h 20m
2026-05-28 SEJ160 DEL → IXJ May 28, 02:25 UTCMay 28, 10:45 UTC8h 20m
2026-05-27 SEJ631 BOM → DEL May 27, 20:25 UTCMay 27, 22:10 UTC1h 45m
2026-05-27 SEJ682 PAT → BOM May 27, 18:35 UTCMay 27, 18:50 UTC15m
2026-05-27 SEJ682 PAT → BOM May 27, 16:50 UTCMay 27, 17:05 UTC15m
2026-05-27 SEJ681 BOM → PAT May 27, 15:05 UTCMay 27, 15:35 UTC30m
2026-05-27 SEJ681 BOM → PAT May 27, 13:45 UTCMay 27, 14:00 UTC15m
2026-05-27 SEJ630 DEL → BOM May 27, 11:55 UTCMay 27, 12:15 UTC20m
2026-05-27 SEJ630 DEL → BOM May 27, 10:35 UTCMay 27, 11:05 UTC30m
2026-05-27 SEJ161 IXJ → DEL May 27, 02:34 UTCMay 27, 08:55 UTC6h 21m
2026-05-26 SEJ631 BOM → DEL May 26, 20:24 UTCMay 26, 22:09 UTC1h 45m
2026-05-26 SEJ682 PAT → BOM May 26, 18:50 UTCMay 26, 19:05 UTC15m
2026-05-26 SEJ682 PAT → BOM May 26, 17:04 UTCMay 26, 17:30 UTC25m
2026-05-26 SEJ681 BOM → PAT May 26, 15:29 UTCMay 26, 15:54 UTC25m
2026-05-26 SEJ681 BOM → PAT May 26, 14:05 UTCMay 26, 14:20 UTC15m
2026-05-26 SEJ684 DEL → BOM May 26, 09:59 UTCMay 26, 10:20 UTC20m
2026-05-26 SEJ683 BOM → JAI May 26, 05:40 UTCMay 26, 06:49 UTC1h 10m
2026-05-26 SEJ630 DEL → BOM May 26, 02:29 UTCMay 26, 04:00 UTC1h 30m
2026-05-25 SEJ631 BOM → DEL May 25, 20:09 UTCMay 25, 21:54 UTC1h 45m
2026-05-25 SEJ682 PAT → BOM May 25, 18:30 UTCMay 25, 18:50 UTC20m
2026-05-25 SEJ682 PAT → BOM May 25, 16:35 UTCMay 25, 17:05 UTC30m
2026-05-25 SEJ681 BOM → PAT May 25, 14:40 UTCMay 25, 15:10 UTC30m
2026-05-25 SEJ681 BOM → PAT May 25, 13:20 UTCMay 25, 13:30 UTC10m
2026-05-25 SEJ684 DEL → BOM May 25, 10:15 UTCMay 25, 10:30 UTC15m
2026-05-25 SEJ683 BOM → JAI May 25, 06:10 UTCMay 25, 07:20 UTC1h 10m
2026-05-25 SEJ630 DEL → BOM May 25, 04:05 UTCMay 25, 04:30 UTC25m
2026-05-25 SEJ630 DEL → BOM May 25, 02:40 UTCMay 25, 03:10 UTC30m
2026-05-24 SEJ631 BOM → DEL May 24, 18:45 UTCMay 24, 20:30 UTC1h 45m
2026-05-24 SEJ682 PAT → BOM May 24, 16:50 UTCMay 24, 17:10 UTC20m
2026-05-24 SEJ682 PAT → BOM May 24, 14:55 UTCMay 24, 15:20 UTC25m
2026-05-24 SEJ681 BOM → PAT May 24, 13:05 UTCMay 24, 13:30 UTC25m
2026-05-24 SEJ681 BOM → PAT May 24, 11:40 UTCMay 24, 11:50 UTC10m
2026-05-24 SEJ684 DEL → BOM May 24, 09:40 UTCMay 24, 09:55 UTC15m
2026-05-24 SEJ683 BOM → JAI May 24, 05:55 UTCMay 24, 06:55 UTC1h 0m
2026-05-24 SEJ630 DEL → BOM May 24, 04:15 UTCMay 24, 04:35 UTC20m
2026-05-24 SEJ630 DEL → BOM May 24, 02:50 UTCMay 24, 03:25 UTC35m

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

Mode-S 4D239C frequently asked

What is Mode-S code 4D239C?
4D239C is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-CXF.
Where is Mode-S 4D239C registered?
Mode-S code 4D239C is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D239C broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D239C, octal 23221634, decimal 5,055,388.
What flights does 4D239C operate?
Mode-S 4D239C has broadcast 20 distinct callsigns, including SEJ681, SEJ630, SEJ682, SEJ631, SEJ199.