sensors Mode-S transponder

4D2352

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2352
Octal
23221522
Decimal
5,055,314
Country
MT
Tail
9H-TJF
Type
B738
No current signal · last broadcast 12h ago
Flights observed
8
Distinct callsigns
6
Country
MT
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4D2352.

Country allocation

The ICAO 24-bit address 4D2352 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 6 distinct

Callsign Airline Flights Last seen
SEJ648 - 2 2026-04-13
SEJ640 Spicejet 2 2026-04-14
SEJ682 - 1 2026-04-13
SEJ681 - 1 2026-04-13
SEJ647 - 1 2026-04-13
SEJ642 - 1 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 SEJ642 - Apr 14, 10:25 UTCApr 14, 11:05 UTC40m
2026-04-14 SEJ640 CCU → GAU Apr 14, 09:10 UTCApr 14, 09:25 UTC15m
2026-04-14 SEJ640 CCU → GAU Apr 14, 08:40 UTCApr 14, 09:05 UTC25m
2026-04-13 SEJ648 - Apr 13, 19:00 UTCApr 13, 19:30 UTC30m
2026-04-13 SEJ682 - Apr 13, 14:50 UTCApr 13, 15:05 UTC15m
2026-04-13 SEJ681 - Apr 13, 13:10 UTCApr 13, 13:25 UTC15m
2026-04-13 SEJ647 - Apr 13, 02:50 UTCApr 13, 03:10 UTC20m
2026-04-12 SEJ648 - Apr 12, 19:15 UTCApr 12, 19:50 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-TJF page for operator, model, and routing details .

Mode-S 4D2352 frequently asked

What is Mode-S code 4D2352?
4D2352 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-TJF.
Where is Mode-S 4D2352 registered?
Mode-S code 4D2352 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2352 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2352, octal 23221522, decimal 5,055,314.
What flights does 4D2352 operate?
Mode-S 4D2352 has broadcast 6 distinct callsigns, including SEJ648, SEJ640, SEJ682, SEJ681, SEJ647.